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ALUMINIUM WINDOW SILL | SOFFIT EAVES FLASHING | UNDERSILL | OVERSILL | TRIM

ALUMINIUM WINDOW SILL

a-man-using-expanding-foam-under-window-sillWindow sill extension is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. It has been designed to either overlap or replace existing sill and protect the building facade windows and to drain rainwater. They should be tightly connected with the window frame so that during rain the water runs down the window and plaster onto the window sill, and then onto the ground, not under the window. In order for the water to drip down, the external window sill should be installed with a slope of 1-2% to the outside. It must protrude 2.5-5 cm beyond the face of the wall. Additionally, an important element of external window sills is a drip - their outer edge. It should always be profiled in a way that prevents water from seeping under the window sill. Generally speaking, the external window sill should be wider than the thickness of the insulation layer on which it is installed. The window sill must not cover the woodwork drainage holes. Sill comes 2500mm long and is made from 1.2mm thick aluminium, white powder coated on both sides to deliver a high quality durable finish and improve appearance of the buildings. Variations on any of these sills can be manufactured to custom specific requirements, and powder coated to any RAL colour. 

WINDOW SILL INSTALLATION

When installing external aluminium window sills, the following guidelines should be taken into account:

  • The window sill should protrude 30-40mm beyond the finished facade.
  • When cutting the sill to size, protect the edges.
  • Aluminum window sills have a slight linear expansion (heating by 50 degrees Celsius causes an elongation of 0.5 mm), thanks to which window sills up to 6m long can be installed without an expansion joint.
  • In order to ensure proper drainage of water from the sill surface, a 5-degree inclination should be used.
  • The self-adhesive protective film should be peeled off immediately after installing the window sill.
  • The gap under the sill must be filled with low-expansion polyurethane foam. It is a good idea to load the sill along its entire length right after applying the foam.
  • Polyurethane foam must be applied carefully, in small portions. When too much foam is applied, it can push the sill upwards.
  • Remove the protective film from the window sill and secure it with silicone.

HOW TO CUT AN ALUMINIUM SILL?

Most often, angle grinders, circular saws and jigsaws are used for this purpose. The angle grinder works well when cutting aluminum, provided that a special cutting disc is used for this material. Another handy piece of equipment suitable for cutting aluminum is a jigsaw. In this case suitable saw blades must be purchased. It is worth paying attention to whether the specification contains information about the possibility of cutting aluminum and the maximum thickness of the sheet. A circular saw is a universal tool used in various types of workshops. It can also be used for cutting aluminum, but as with an angle grinder, you should choose an aluminum blade for it. When cutting an aluminum, it is absolutely necessary to remember about personal protective equipment: glasses and gloves.

We offer one of the widest ranges of sill extensionsExtensive stock levels are held, enabling an excellent level of service, whilst also maintaining uncompromising quality. All our Aluminum window sills are produced by the aluminum pulling method from structural alloys that meet the highest quality standards. In addition to this, a specialist fabrication service is available for unique specifications requiring made to measure details. Custom cut / custom made external window sill extenders can be manufactured to your specific requirements, and powder coated to any colour from 2530 RAL colors available.


 721 WINDOW SILL EXTENSION AND OVERSILL EAVES FLASHING       

721-window-sill-extension


 

731 SILL EXTENSION AND UNDERSILL TRIM FLASHING

731-undersill-extenstion-2.5m-long

             

                                                                                                                     


741 SOFFIT EAVES FLASHING SILL EXTENSION TRIM           

741-soffit-eaves-flashing-sill-2.5m-long


  751 OVERSILL O'SILL EXTENSION OVER TRIM SILL    

751-oversill-extenstion-2.5m-long


761 STANDARD SILL EXTENSION TRIM OVER-SILL O'SILL

761-o'sill-aluminium-window-sill-extension


 

Brand: WEMICO® Model: 30mm - 721
30mm Window Sill Extension (Metal Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill extender is a 2500mm long trim made from 1.2mm thic..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 41.62
Ex Tax:£ 34.68
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 30mm - 741
30mm Aluminium Soffit Eaves Flashing and Window Sill Extension is a non-corrosive aluminium ledge extender trim suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Window Sill Extender 30mm is a 2500mm long profile made fro..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 50.56
Ex Tax:£ 42.13
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 30mm - 761
30mm Aluminium Oversill and Window Sill Extension (External Window Sill Extender) is an easy to install non-corrosive trim suitable for EWI systems and most conditions requiring the weathering. Universal External Window Sill Extender 30mm is designed to extend the length of an existing window sil..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 43.31
Ex Tax:£ 36.09
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 40mm - 731
40mm Undersill Flashing and Metal Window Sill Extension is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 40mm is a 2500mm long trim made from 1.2mm thick aluminium..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 44.18
Ex Tax:£ 36.82
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 50mm - 751
50mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 50mm is a 2500mm long profile made fro..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 46.75
Ex Tax:£ 38.96
Estimated delivery: 3-5 working days
Brand: CT1® Model: CT1 Silicone Adhesive White
CT1 Silicone Sealant and Adhesive WHITE 290ml is a flexible hybrid polymer based silicone sealant and adhesive that can be used to seal: solid wall insulation, render-only systems, baths, showers, roofs, doors, windows, and gutters. This silicone sealant & adhesive is an easy to apply product wit..
  • CT1 Silicone Sealant and Adhesive - WHITE
  • Flexible hybrid polymer silicone sealant & adhesive
  • High flexibility and bonding strength
  • Suitable for a wide range of substrates
  • Great resistance to fungal growth and chemicals
£ 14.70
Ex Tax:£ 12.25
Estimated delivery: 2-3 working days
Brand: Everbuild® Model: Everbuild General Purpose Silicone - White
Everbuild General Purpose Silicone 290ml (White Colour) is a multi-purpose, long-lasting silicone sealant with anti-fungal properties that can be used in areas of high humidity and damp to create a completely waterproof seal. GP Silicone is a fast curing time product designed to create a high-str..
  • Everbuild General Purpose Silicone 290ml - White
  • Multi-purpose, long-lasting silicone sealant
  • Can be used in areas of high humidity and damp
  • Designed to create a high-strength waterproof seal
  • Protection against mould and bacteria mildew
£ 6.17
Ex Tax:£ 5.14
Estimated delivery: 2-3 working days
Brand: Everbuild® Model: Everbuild Stixall - White
Everbuild Stixall Extreme Power Silicone Adhesive and Sealant WHITE (290ml) is a combined high-grab building adhesive and sealant offering a high strength adhesion and gap-filling capabilities that can be applied to a wide range of substrates. Stixall is a one part, chemically curing sealant and ..
  • Everbuild Stixall Silicone Adhesive & Sealant WHITE
  • High-grab building adhesive and sealant 290ml
  • High strength adhesion and gap-filling capabilities
  • Waterproof and resistant to extreme temperatures
  • Suitable for interior and exterior use - Quick curing
£ 7.88
Ex Tax:£ 6.57
Estimated delivery: 2-3 working days
Brand: WEMICO® Model: Full End Caps 721
Full End Caps Pair to suit Sill Type 721 is a pair of aluminium push fit end caps to fit the type 721 range of over-sill eaves flashing and window sill extenders. The WEC721 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides. This produ..
  • Full End Caps Pair to suit Sill Type 721
  • Push fit end caps to fit the type 721 range of over-sill
  • To suit WEC721 eaves flashing and window sill extenders
  • Left and right handed end caps powder coated white
  • Thin coat rendering and most conditions requiring the weathering
£ 12.32
Ex Tax:£ 10.27
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 40mm - 721
40mm Window Sill Extension (Metal Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender is a 2500mm long trim made from 1.2mm thic..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 43.19
Ex Tax:£ 35.99
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 40mm - 741
40mm Aluminium Soffit Eaves Flashing and Window Sill Extension is a non-corrosive aluminium extender trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 40mm is a 2500mm long profile made from 1.2mm thick..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 51.86
Ex Tax:£ 43.22
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 40mm - 761
40mm Aluminium Oversill and Window Sill Extension (External Window Sill Extender) is an easy to install trim suitable for external wall insulation systems, thin-coat rendering and most conditions requiring the weathering. Universal External Window Sill Extender 40mm is designed to extend the leng..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 44.65
Ex Tax:£ 37.21
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 50mm - 731
50mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 50mm is a 2500mm long trim made from 1.2mm thick aluminium, w..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 45.58
Ex Tax:£ 37.98
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 60mm - 751
60mm Aluminium External Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 60mm is a 2500mm long profile..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 47.42
Ex Tax:£ 39.52
Estimated delivery: 3-5 working days
Brand: CT1® Model: CT1 Silicone Adhesive Grey
CT1 Silicone Sealant and Adhesive GREY (290ml cartridge) is a special hybrid polymer based silicone sealant and adhesive that can be used to seal: solid wall insulation, render-only systems, baths, showers, roofs, doors, windows, and gutters. Grey colour silicone sealant & adhesive is an easy to ..
  • CT1 Silicone Sealant and Adhesive - GREY
  • Flexible hybrid polymer silicone sealant & adhesive
  • High flexibility and bonding strength
  • Suitable for a wide range of substrates
  • Great resistance to fungal growth and chemicals
£ 14.70
Ex Tax:£ 12.25
Estimated delivery: 2-3 working days
Brand: Everbuild® Model: Everbuild General Purpose Silicone - Clear
Everbuild Multi-purpose Silicone 290ml (Clear – Transparent) is a quick curing, flexible long-lasting silicone sealant with anti-fungal properties that can be used in areas of high humidity and damp to create a completely waterproof permanent seal. General Purpose Silicone EVERBUILD® is a fast cu..
  • Everbuild General Purpose Silicone 290ml - Clear
  • Multi-purpose silicone sealant - Transparent
  • Can be used in areas of high humidity and damp
  • Designed to create a high-strength waterproof seal
  • Protection against mould and bacteria mildew
£ 6.47
Ex Tax:£ 5.39
Estimated delivery: 2-3 working days
Brand: WEMICO® Model: Full End Caps 731
Full End Caps Pair to suit Type 731 Sill is a pair of aluminium push fit end caps to fit the type 731 range of under-sill eaves flashing and window sill extenders. The WEC731 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides. This prod..
  • Full End Caps Pair to suit Sill Type 731
  • Push fit end caps to fit the type 731 range of under-sill
  • To suit WEC731 flashing and window sill extensions
  • Left and right handed end caps powder coated white
  • Thin coat rendering and most conditions requiring the weathering
£ 11.88
Ex Tax:£ 9.90
Estimated delivery: 3-5 working days
Brand: Everbuild® Model: Everbuild Stixall - Clear (Transparent)
Stixall Extreme Power Silicone Adhesive and Sealant – Crystal Clear (Transparent) is a high-grab building adhesive and sealant offering a high strength adhesion and gap-filling capabilities that can be applied to a wide range of substrates. Everbuild Stixall is a one part, chemically curing seala..
  • Everbuild Stixall Extreme Power CRYSTAL CLEAR
  • High-grab building adhesive and sealant 290ml
  • High strength adhesion and gap-filling capabilities
  • Waterproof and resistant to extreme temperatures
  • Suitable for interior and exterior use (Transparent)
£ 8.88
Ex Tax:£ 7.40
Estimated delivery: 2-3 working days
Brand: WEMICO® Model: 50mm - 721
50mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender is a 2500mm long trim made from 1.2mm thick alum..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 44.26
Ex Tax:£ 36.88
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 50mm - 741
50mm Aluminium Soffit Eaves Flashing and Window Sill Extension is a non-corrosive aluminium extender trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 50mm is a 2500mm long profile made from 1.2mm thick..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 53.09
Ex Tax:£ 44.24
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 50mm - 761
50mm Aluminium Oversill and Window Sill Extension (External Window Sill Extender) is an easy to install non-corrosive profile suitable for external wall insulation systems, rendering and most conditions requiring the weathering. Universal External Window Sill Extender 50mm is designed to extend t..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 45.34
Ex Tax:£ 37.78
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 60mm - 731
60mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 60mm is a 2500mm long trim made from 1.2mm thick aluminium, w..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 47.77
Ex Tax:£ 39.81
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 70mm - 751
70mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 70mm is a 2500mm long profile made fro..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 56.14
Ex Tax:£ 46.78
Estimated delivery: 3-5 working days
Brand: CT1® Model: CT1 Silicone Adhesive Clear
CT1 Silicone Sealant & Adhesive CLEAR (Transparent) 290ml is a highly flexible hybrid polymer based silicone sealant and adhesive that can be used to seal: solid wall insulation, render-only systems, baths, showers, roofs, doors, windows, and gutters. Clear (transparent) colour silicone sealant a..
  • CT1 Silicone Sealant and Adhesive - Clear (Transparent)
  • Flexible hybrid polymer silicone sealant & adhesive
  • High flexibility and bonding strength
  • Suitable for a wide range of substrates
  • Great resistance to fungal growth and chemicals
£ 17.14
Ex Tax:£ 14.28
Estimated delivery: 2-3 working days
Brand: Everbuild® Model: Everbuild Stixall - Black
Stixall Extreme Power Silicone Sealant – Colour Black (290ml) is an ultimate combined high-grab building adhesive and sealant offering a high strength adhesion and gap-filling capabilities that can be applied to a wide range of substrates. Everbuild Stixall is a one part, chemically curing sealan..
  • Everbuild Stixall Extreme Power BLACK
  • High-grab building adhesive and sealant 290ml
  • High strength adhesion and gap-filling capabilities
  • Waterproof and resistant to extreme temperatures
  • Suitable for interior and exterior use
£ 7.88
Ex Tax:£ 6.57
Estimated delivery: 2-3 working days
Brand: WEMICO® Model: Full End Caps 741
Full End Caps Pair to suit Type 741 Window Sill is a pair of aluminium push fit end caps to fit the type 741 range of window sill extensions. The WEC741 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides. This product is used for EWI (e..
  • Full End Caps Pair to suit Sill Type 741
  • Push fit end caps to fit the type 741 range of window sills
  • To suit WEC741 flashing and window sill extensions
  • Left and right handed end caps powder coated white
  • Thin coat rendering and most conditions requiring the weathering
£ 13.28
Ex Tax:£ 11.07
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 60mm - 721
60mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 60mm is a 2500mm long trim made from 1.2mm thick..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 45.50
Ex Tax:£ 37.92
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 60mm - 741
60mm Aluminium Soffit Eaves Flashing and Window Sill Extension is a non-corrosive aluminium extender trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 60mm is a 2500mm long profile made from 1.2mm thick..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 54.73
Ex Tax:£ 45.61
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 60mm - 761
60mm Aluminium Oversill and Window Sill Extension (External Window Sill Extender) is an easy to install non-corrosive profile suitable for external wall insulation systems, rendering and most conditions requiring the weathering. Universal External Window Sill Extender 60mm is designed to extend t..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 46.22
Ex Tax:£ 38.52
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 70mm - 731
70mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 70mm is a 2500mm long trim made from 1.2mm thick aluminium, w..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 55.97
Ex Tax:£ 46.64
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 80mm - 751
80mm Aluminium External Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 80mm is a 2500mm long profile..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 57.83
Ex Tax:£ 48.19
Estimated delivery: 3-5 working days
Brand: CT1® Model: CT1 Silicone Adhesive Black
CT1 Silicone Adhesive and Sealant (Colour Black) 290ml is a multi-purpose silicone based sealant and adhesive that can be used to seal: solid wall insulation, render-only systems, baths, showers, roofs, doors, windows, and gutters. Black colour silicone sealant and adhesive is an easy to apply pr..
  • CT1 Silicone Sealant and Adhesive - Black
  • Flexible hybrid polymer silicone sealant & adhesive
  • High flexibility and bonding strength
  • Suitable for a wide range of substrates
  • Great resistance to fungal growth and chemicals
£ 14.70
Ex Tax:£ 12.25
Estimated delivery: 2-3 working days
Brand: WEMICO® Model: Full End Caps 751
Full End Caps Pair to suit Type 751 (o’sill) Window Sill is a pair of aluminium push fit end caps to fit the type 751 range of window over sill extensions / extenders. The WEC751 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides. This ..
  • Full End Caps Pair to suit Sill Type 751
  • Push fit end caps to fit the type 751 range of window sills
  • To suit WEC751 flashing and window sill extensions
  • Left and right handed end caps powder coated white
  • Thin coat rendering and most conditions requiring the weathering
£ 12.80
Ex Tax:£ 10.67
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 70mm - 721
70mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 70mm is a 2500mm long trim made from 1.2mm thick..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 54.83
Ex Tax:£ 45.69
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 70mm - 741
70mm Aluminium Soffit Eaves Flashing and Window Sill Extension is a non-corrosive aluminium extender trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 70mm is a 2500mm long profile made from 1.2mm thick..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 64.82
Ex Tax:£ 54.02
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 70mm - 761
70mm Aluminium Oversill and Window Sill Extension (External Window Sill Extender) is an easy to install non-corrosive trim suitable for external wall insulation systems, rendering and most conditions requiring the weathering. Universal External Window Sill Extender 70mm is designed to extend the ..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 55.86
Ex Tax:£ 46.55
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 80mm - 731
80mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 80mm is a 2500mm long trim made from 1.2mm thick aluminium, w..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 57.72
Ex Tax:£ 48.10
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 90mm - 751
90mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 90mm is a 2500mm long profile made fro..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 58.74
Ex Tax:£ 48.95
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: Full End Caps 761
Full End Caps to fit Type 761 Aluminium Over Sill Extender is a pair of aluminium push fit full end caps to fit the type 761 range of window over sill extensions / extenders. The WEC761 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides. ..
  • Full End Caps Pair to suit Sill Type 761
  • Push fit end caps to fit the type 761 range of window sills
  • To suit WEC761 flashing and window sill extensions
  • Left and right handed end caps powder coated white
  • Thin coat rendering and most conditions requiring the weathering
£ 14.33
Ex Tax:£ 11.94
Estimated delivery: 3-5 working days
Brand: CT1® Model: CT1 Silicone Adhesive Anthracite
Silicone Adhesive and Sealant (Anthracite) CT1 – 290ml cartridge is a ready-to-use silicone based sealant and adhesive that can be used to seal: solid wall insulation, render-only systems, baths, showers, roofs, doors, windows, and gutters. Anthracite colour silicone sealant and adhesive is an ea..
  • CT1 Silicone Sealant and Adhesive - Anthracite
  • Flexible hybrid polymer silicone sealant & adhesive
  • High flexibility and bonding strength
  • Suitable for a wide range of substrates
  • Great resistance to fungal growth and chemicals
£ 14.70
Ex Tax:£ 12.25
Estimated delivery: 2-3 working days
Brand: WEMICO® Model: 100mm - 751
100mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 100mm is a 2500mm long profile made f..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 60.34
Ex Tax:£ 50.28
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 80mm - 721
80mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 80mm is a 2500mm long trim made from 1.2mm thick..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 55.68
Ex Tax:£ 46.40
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 80mm - 741
80mm Aluminium Soffit Eaves Flashing and Window Sill Extension is a non-corrosive aluminium extender trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 80mm is a 2500mm long profile made from 1.2mm thick..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 66.84
Ex Tax:£ 55.70
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 80mm - 761
80mm Oversill and Window Sill Extension (Universal Metal O'sill) is a non-corrosive aluminium ledge trim suitable for external wall insulation systems, thin-coat rendering and most conditions requiring the weathering. WEC 761 Standard Sill is a highly-durable 2500mm long profile made from 1.2mm t..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 57.40
Ex Tax:£ 47.83
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 90mm - 731
90mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium ledge extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 90mm is a 2500mm long trim made from 1.2mm thick alumin..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 58.32
Ex Tax:£ 48.60
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 100mm - 731
100mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium ledge extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 100mm is a 2500mm long trim made from 1.2mm thick alum..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 61.51
Ex Tax:£ 51.26
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 110mm - 751
110mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Sill Extender 110mm is a 2500mm long profile made from 1.2..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 62.50
Ex Tax:£ 52.08
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 90mm - 721
90mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 90mm is a 2500mm long trim made from 1.2mm thick..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 57.01
Ex Tax:£ 47.51
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 90mm - 741
90mm Aluminium Soffit Eaves Flashing and Window Sill Extension 741 is a non-corrosive aluminium ledge trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 90mm is a 2500mm long profile made from 1.2mm thic..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 67.45
Ex Tax:£ 56.21
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 90mm - 761
90mm Oversill and Window Sill Extension (Universal Aluminium O'sill Extender) is a non-corrosive aluminium ledge trim suitable for external wall insulation systems, thin-coat rendering and most conditions requiring the weathering. Wemico 761 Standard Window Over-Sill Extender 90mm is a highly-dur..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 58.38
Ex Tax:£ 48.65
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 100mm - 721
100mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 100mm is a 2500mm long trim made from 1.2mm thi..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 60.17
Ex Tax:£ 50.14
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 100mm - 741
100mm Aluminium Soffit Eaves Flashing and Window Sill Extension 741 is a non-corrosive aluminium ledge trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 100mm is a 2500mm long profile made from 1.2mm th..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 68.29
Ex Tax:£ 56.91
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 100mm - 761
100mm Aluminium Oversill and Window Sill Extension (External Window Sill Extender) is an easy to install non-corrosive profile suitable for external wall insulation systems, rendering and most conditions requiring the weathering. Universal External Window Sill Extender 100mm is designed to extend..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 60.13
Ex Tax:£ 50.11
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 110mm - 731
110mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Sill Extender 110mm is a 2500mm long trim made from 1.2mm thick aluminium,..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 62.05
Ex Tax:£ 51.71
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 120mm - 751
120mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 External Window Sill Extender 120mm is a 2500mm long profi..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 63.29
Ex Tax:£ 52.74
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 110mm - 721
110mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 110mm is a 2500mm long trim made from 1.2mm thi..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 61.00
Ex Tax:£ 50.83
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 110mm - 741
110mm Aluminium Soffit Eaves Flashing and Window Sill Extension 741 is a non-corrosive aluminium ledge trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 110mm is a 2500mm long profile made from 1.2mm th..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 68.96
Ex Tax:£ 57.47
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 110mm - 761
110mm Oversill and Window Sill Extension (Universal Window O'sill Extender) is a non-corrosive aluminium ledge trim suitable for external wall insulation systems, thin-coat rendering and most conditions requiring the weathering. WEC 761 Exterior Window Over-Sill Extender 110mm is a highly-durable..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 61.72
Ex Tax:£ 51.43
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 120mm - 731
120mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium ledge extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Window Sill Extender 120mm is a 2500mm long trim made from 1.2mm thi..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 62.64
Ex Tax:£ 52.20
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 130mm - 751
130mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 130mm is a 2500mm long profile made f..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 64.33
Ex Tax:£ 53.61
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 120mm - 721
120mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 120mm is a 2500mm long trim made from 1.2mm thi..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 61.54
Ex Tax:£ 51.28
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 120mm - 741
120mm Aluminium Soffit Eaves Flashing and Window Sill Extension 741 is a non-corrosive aluminium ledge trim suitable for external wall insulation (EWI) systems, thin coat rendering and most conditions requiring the weathering. WEC741 Sill Extender 120mm is a 2500mm long profile made from 1.2mm th..
  • Full End Caps Pair - included
  • Soffit Eaves Flashing (Type 741)
  • Material thickness: 1.2mm thick
  • Length 2.5m - EWI External Wall Insulation Systems
  • White Coated on BOTH SIDES - blue covering protection
£ 69.94
Ex Tax:£ 58.28
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 120mm - 761
120mm Aluminium Oversill and Window Sill Extension (External Window Sill Extender) is an easy to install non-corrosive profile suitable for external wall insulation systems, rendering and most conditions requiring the weathering. Universal External Window Sill Extender 120mm is designed to extend..
  • Designed to extend the length of an existing window sill
  • Over Trim Extension (Type 761)
  • Material thickness: 1.2mm - O'Sill
  • Length 2.5m - EWI External Wall Insulation
  • White Coated on BOTH SIDES - Blue Covering Protection
£ 62.17
Ex Tax:£ 51.81
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 130mm - 731
130mm Undersill Flashing and Window Sill Extension is a non-corrosive aluminium ledge extender profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC731 Window Sill Extender 130mm is a 2500mm long trim made from 1.2mm thi..
  • For most conditions requiring the weathering
  • Sill Cover (Type 731) - Undersill
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES - with blue covering protection
£ 65.75
Ex Tax:£ 54.79
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 140mm - 751
140mm Aluminium Oversill and Window Sill Extension (O'sill Extender 751) is a non-corrosive aluminium ledge trim suitable for EWI (external wall insulation) systems, thin-coat rendering and most conditions requiring the weathering. WEC751 Window Sill Extender 140mm is a 2500mm long profile made f..
  • (Type 751) - Oversill - O'sill
  • Material thickness: 1.2mm thick
  • Over Trim Cover - Window Sill Extender
  • Length 2.5m - EWI External Wall Insulation - OverTrim
  • White Coated on BOTH SIDES - Blue covering protection foil
£ 65.21
Ex Tax:£ 54.34
Estimated delivery: 3-5 working days
Brand: WEMICO® Model: 130mm - 721
130mm Window Sill Extension (Oversill and Eaves Flashing Extender) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering. WEC721 Sill Extender 130mm is a 2500mm long trim made from 1.2mm thi..
  • Full End Caps Pair - included
  • Sill Cover (Type 721)
  • Material thickness: 1.2mm thick
  • Length 2.5m - for most EWI External Wall Insulation projects
  • White Coated on BOTH SIDES, the blue covering is a protection and can be torn off
£ 64.78
Ex Tax:£ 53.98
Estimated delivery: 3-5 working days
Brand: