275mm Undersill Flashing and Window Sill Extensions (with full end caps-pair) - length up to 2.5m
Guide Price
275mm Undersill Flashing and Window Sill Extensions (with full end caps-pair) - length up to 2.5m
Guide Price: £41.60 (£49.92 inc VAT)
10 or more £40.73 (£48.88 inc VAT)
20 or more £40.17 (£48.20 inc VAT)
30 or more £38.70 (£46.44 inc VAT)
- Product Code: A1-2300
- Delivery Time: 1 - 2 days
- Brand: Wemico
- Model and Size: WEC731/275
Our ratings on 24-10-2025:
4.8 out of 5
275mm Undersill Flashing and Window Sill Extensions (with full end caps-pair) - length up to 2.5m
Length: 2500mm
Width: 300mm
275mm Undersill Flashing and Window Sill Extension is suitable for most conditions requiring the weathering of External Wall Insulation Systems and Rendering. Aluminium White Coated with peel-off low tack film to protect the section during transportation and fixing on-site. Jointing pieces to suit any section can be supplied where continuous lengths of flashing are installed, and clips can be supplied to retain the projecting nose of the section if required. Larger sizes or variations on any of these profiles can be manufactured to your specification, and powder coated to any standard RAL colour.

Brand: Wemico
Model and Size: BrickSlip50
Delivery Time: 1 - 2 days
50mm Wemico aluminium brickslip profile for use in Insulation systems finished with a brick slip detail. These profiles can be powder coated to any standard RAL colour...
Guide Price: £158.42
£190.10 inc VAT
Brand: Wemico
Model and Size: WEC731/145
Delivery Time: 1 - 2 days
145mm Undersill Flashing and Window Sill Extension is suitable for most conditions requiring the weathering of External Wall Insulation Systems and Rendering. Aluminium White Coated with peel-off low tack film to protect the section during transportation and fixing on-site. Jointing pieces to suit a..
Guide Price: £35.75
£42.90 inc VAT
Brand: Wemico
Model and Size: WEC731/185
Delivery Time: 1 - 2 days
185mm Undersill Flashing and Window Sill Extension is suitable for most conditions requiring the weathering of External Wall Insulation Systems and Rendering. Aluminium White Coated with peel-off low tack film to protect the section during transportation and fixing on-site. Jointing pieces to suit a..
Guide Price: £34.05
£40.86 inc VAT
Brand: Wemico
Model and Size: 37510A
Delivery Time: 1 - 2 days
60-90mm Adjustable PVC Base Profile for use insulation systems of various thickness for 6mm render depth. 2m length. Render depth 6mm.CHARACTERISTICSAdjustable to suit various insulation sizes, Helps to avoid thermal bridging, Easy to cut and safer to handle. Attached mesh aids render adhesion, Robu..
Guide Price: £196.63
£235.96 inc VAT
Brand: Wemico
Model and Size: WEC721/190
Delivery Time: 1 - 2 days
190mm Eaves Flashing and Window Sill Extension is suitable for most conditions requiring the weathering of External Wall Insulation Systems and Rendering. Aluminium White Coated with peel-off low tack film to protect the section during transportation and fixing on-site. Jointing ..
Guide Price: £33.70
£40.44 inc VAT
Brand: Wemico
Model and Size: 38909
Delivery Time: 2 - 3 working days
9mm self adhesive PVC profile for use on window reveals or door frames. Attached to the frame with a foam tape, the frameseal has an adhesive strip to enable use of a protective film to be applied during the rendering process, which is snapped off on completion. Profile 38909..