White Internal Window Cills

Clean, Durable & Low Maintenance Window Boards

Our White Internal Window Cills provide a clean, modern finish for any window installation. Manufactured from high-quality PVC, these durable window boards offer an attractive alternative to traditional timber cills, requiring virtually no maintenance while providing excellent long-term performance.

Suitable for both new-build and refurbishment projects, white internal cills remain the most popular choice for homeowners, developers and installers throughout the UK.

Why Choose White Internal Window Cills?

White window boards complement virtually any interior décor style and create a bright, clean appearance around windows. The smooth PVC surface is easy to clean and resistant to everyday wear, making it ideal for busy homes and commercial environments.

Unlike timber alternatives, PVC internal cills do not require painting, staining or regular maintenance.

Benefits of White Internal Window Cills

• Bright White Finish
• Low Maintenance PVC Construction
• No Painting Required
• Moisture Resistant
• Easy to Clean
• Durable and Long Lasting
• Will Not Rot, Warp or Crack
• Suitable for New Build & Refurbishment Projects
• Available in Various Widths
• Available from Stock in Bristol

Suitable Applications

• Living Rooms
• Bedrooms
• Kitchens
• Bathrooms
• Conservatories
• Home Offices
• Apartments
• New Build Homes
• Property Refurbishments
• Commercial Buildings

Easy to Install

White internal window cills are lightweight, easy to cut and simple to install using suitable adhesives and fixings. They can be fitted over existing timber boards in many refurbishment projects, helping reduce installation time and disruption.

Matching end caps and finishing trims are available to create a neat, professional appearance.

Perfect for Modern & Traditional Interiors

The clean white finish works equally well in contemporary and traditional properties. Whether paired with white uPVC windows or contrasting coloured frames, white internal cills provide a timeless and professional finish.

The smooth surface also reflects light effectively, helping brighten interior spaces.

Long Lasting Performance

Manufactured from durable PVC, these window boards are designed to withstand everyday use while maintaining their appearance for years. Their moisture-resistant construction makes them particularly suitable for kitchens, bathrooms and other areas where traditional timber may be affected by humidity.

White Internal Window Cills Bristol

Master Plastics has supplied window finishing products, roofline materials and building plastics throughout Bristol since 1994. We stock a wide range of internal window cills, trims and accessories for trade and retail customers.

Call 0117 971 9922 or visit our Bristol trade counter for expert advice and competitive prices on White Internal Window Cills.