Apply adhesive (non solvent based) to the existing window cill and then push this new one into place on top. Make sure it level both ways before leaving the adhesive to set. 9mm Thick PVC rounded edge window board creates a neat, smooth, finish.
eBay
895 875 887 Motor Rotor Carbon Brush Holder End Cap Cover Repair Parts for Cordless Screw Driver Drill Wrench Tools Parts
Aliexpress UK
Material: Exterior-grade rigid UPVC. Available indepth options from 100mm to 400mm, it fits most standard and wide sill sizes – ideal for refurbishing multiple windows across kitchens, bathrooms, living rooms, or rental units.
eBay
30-60pcs/lot Gold Stainless Steel Cords Crimp End Beads Caps Leather Clip Tip Fold Crimp Bracelet Connectors For Jewelry Making
Aliexpress UK
Manufactured fromrigid, exterior-grade UPVC, they are waterproof, UV-stable and highly resistant to warping or discolouration. Material: Rigid exterior-grade UPVC. Windows4You is a trusted UK supplier ofUPVC window trims, fascia boards, soffits, and capping boards.
eBay
100pcs Grey Dishwasher Rack Coating Protectors Flexible Plastic End Caps Repair Rust Scratches Home Kitchen Accessories
Aliexpress UK
9mm Solid UPVC – Strong, rigid, and superior to 5mm budget alternatives. Material: Rigid exterior-grade UPVC. Withdepth options from 100mm to 400mm, there's a size for every window. Achieve a clean, modern look quickly and affordably.
eBay
Roller Brush Bar End Cap Side Cover For Dyson V6 V7 V8 V10 V11 Vacuum Cleaner Replacement Spare Parts Kit
Aliexpress UK
Manufactured fromrigid, 9mm thick UPVC, this board is perfect for covering worn or outdated timber or MDF window sills without removing them. Material: Rigid exterior-grade UPVC. Your trusted partner for UPVC building materials in the UK.
eBay
200pcs/Lot Crimp Beads Cove Clasps Cord End Caps String Ribbon Leather Clip Foldover For Jewelry Making DIY Necklace Connectors
Aliexpress UK
The9mm thickness provides superior strength and impact resistance, while the range ofdepths from 100mm to 400mm ensures a perfect fit for most standard window applications. Material: Rigid exterior-grade UPVC.
eBay
Motor Rotor Carbon Brush Holder End Cap Cover Repair Part Replace 895/875/887 For Cordless Screw Driver Drill Wrench Accessories
Aliexpress UK
Material: Rigid exterior-grade UPVC. Your UK source for premium UPVC building products. Choose fromdepths between 100mm and 400mm to suit your installation needs. 100–400mm Width Options – Wide compatibility.
eBay
OlingArt Gold 2 3 4 5 6 7 8 9 11mm tassel round leather cord crimps end caps lobster clasp Fastener 12pcs/lot DIY jewelry making
Aliexpress UK
White UPVC Capping Board – 1.25m Long, 9mm Thick (100–400mm Depth Options). Transform your window sills effortlessly with ourpremium White UPVC Capping Boards, engineered for high performance, durability, and a sleek finish.
eBay
Galvanized M5 M6 M8 M10 M12 M14-M36 Metric Male Thread Hex Socket ED End Cap Rubber Sealing Ring Flange Plug Pipe Fitting
Aliexpress UK