White UPVC Window Sill Cover – 1.5m Long, 9mm Thick (1 Pack – 100–400mm Depth Options)

Upgrade tired or damaged window sills with our 1.5-metre White UPVC Capping Board. This single board offers a practical and low-maintenance solution for covering existing timber or MDF sills without the need for removal or repainting. Ideal for individual windows in kitchens, bathrooms, or utility areas.

With a durable 9mm thickness and high-gloss white finish, this board provides a clean, professional look that resists water, UV rays, and daily wear. It’s available in a range of widths from 100mm to 400mm, making it suitable for both narrow and wide sills.

This 1-pack option is perfect for smaller projects or single replacements – simply cut to size, apply adhesive, and enjoy a refreshed interior.

Key Features

• 1.5m Length x 9mm Thickness – versatile size for most window sills
• Gloss White Finish – bright, clean and easy to maintain
• Waterproof & UV Resistant – long-lasting appearance indoors
• Multiple Depth Options – from 100mm up to 400mm
• Rigid UPVC Profile – won’t flex, crack or sag
• Quick Installation – cut to length and apply with adhesive
• Compatible Accessories – end caps, corners and adhesives sold separately

Common Applications

• Covering a single sill in bathrooms, kitchens, or hallways
• Refurbishing a rental property or preparing for sale
• Replacing stained, cracked, or warped sills with a fresh new look
• Ideal for landlords, DIYers, and trade professionals

Technical Specifications

Installation Instructions

1. Ensure the existing sill is clean and dry
2. Measure and cut the board with a fine-tooth saw
3. Test fit to check alignment
4. Apply grab adhesive to the back
5. Firmly press into position and hold for 60 seconds
6. Optionally finish edges with white silicone

Why Choose Windows4You?

Windows4You is a trusted UK-based supplier of UPVC window trims, boards, and accessories. We provide high-quality products, fast dispatch, and responsive customer support to homeowners, landlords, and installers nationwide.