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130mm Aluminium Soffit Eaves Flashing Window Sill Extension ǀ Type 741

130mm 741 Soffit Eaves Flashing Sill Extension Trim - 2.5m (Full End Caps Pair)
130mm Aluminium Soffit Eaves Flashing Window Sill Extension ǀ Type 741
  • 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
Estimated delivery:
In Stock
£ 73.34
Ex VAT: £ 61.12
  • Brand: WEMICO®
  • Model: 130mm - 741
  • Dimensions: 2,500mm x 130mm x 1.20mm
  • SKU: 130mm
  • Product code: P1-1417
  • MPN: WEC741/130

Options available

130mm 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 130mm is a 2500mm long profile 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.

Aluminium Soffit Eaves Flashing Sill Extenders are designed to extend the length of an existing window sill to overhang the insulation to prevent water penetration.

Larger sizes or custom cut (fabrication) sills can be manufactured to your specific requirements, and powder coated to any RAL colour.

Aluminium Soffit Flashing trims tend to be stronger than uPVC and provide greater design flexibility than uPVC products.

It can be fitted either with a low-expansion foam or a weatherproof silicone sealant to meet the recommendations of thermal insulation systems manufacturers.

Suitable for newbuild, retrofit and refurbishment projects in accordance with the most frequently used shapes on buildings.

Delivered with a blue peel off low tack film to protect the section during transportation and fixing on site.

Mainly used for complete external wall insulation systems, thin coat rendering, insulated render systems based on EPS (Grey and white expanded polystyrene), Kingspan K5 boards or Rockwool slabs.

Soffit Flashing and Window Sill Extension is made of a self-hardening aluminium alloy with magnesium and silicon additives.

It is distinguished by its excellent formability and high corrosion resistance.

Eco-friendly and recyclable in line with the concept of sustainable development.

Aluminium is 100% recycled with no loss of quality and is the most frequently recovered metal!

Easy to handle and install type 741 sills are available in: 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm, 200mm, 210mm, 220mm, 230mm, 240mm, 250mm, 260mm, 270mm, 280mm, 290mm and 300mm widths.




Length: 2500mm

Thickness: 1.2mm

Material: Aluminium 

Finish: White powder coated


*Sills can be manufactured to Your specific requirements (Custom-cut / made), and powder coated to any RAL colour.

Price on Application (7 - 14 working days fabrication service).


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 


*Special Product - Non returnable cancelable.

Colour White
Length 2500mm
lmetres 2.5
Material Aluminium
Profile Type 741
Thickness 1.2mm
Width 130mm
Dim A 130mm
Finish Powder coated
Applications External Wall Insulation Systems
Drop 25mm ǀ 60mm
Features Full End Caps Pair included
Return 10mm
Manufacturer Protektor UK® | Wemico®
Angle 80 degrees

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
130mm 741 Soffit Eaves Flashing Sill Extension Trim - 2.5m (Full End Caps Pair)
130mm Aluminium Soffit Eaves Flashing Window Sill Extension ǀ Type 741
£ 73.34