Window Cills UPVC
Internal uPVC Window Cills & Window Boards
Durable Internal Window Cills for Modern Homes
Our Internal uPVC Window Cills provide a practical, attractive and low-maintenance alternative to traditional timber window boards. Designed to create a neat finish around window openings, these durable cills are suitable for new-build properties, renovations and replacement projects.
Available in a variety of sizes, colours and finishes, our internal window cills offer a long-lasting solution that will not require painting, staining or ongoing maintenance.
uPVC & Duraboard Window Cills
We stock a range of internal window cills suitable for both residential and commercial applications. Customers can choose from traditional uPVC window boards or high-quality Duraboard window cills, depending on the requirements of their project.
Both options provide a clean, professional finish while offering excellent durability and ease of installation.
Benefits of Internal uPVC Window Cills
- Low maintenance finish
- No painting required
- Moisture resistant
- Easy to clean
- Durable and long lasting
- Available in multiple sizes
- Suitable for refurbishment and new-build projects
- Easy to cut and install
- Available in a range of colours
- Professional finished appearance
Available Colours & Finishes
Our internal window cills are available in a range of popular finishes to complement modern and traditional interiors.
- White
- Anthracite Grey
- Light Oak
- Rosewood
- Mahogany
- Selected Woodgrain Finishes
Suitable Applications
- Replacement windows
- New-build homes
- House renovations
- Apartments
- Commercial buildings
- Offices
- Schools
- Healthcare facilities
- Retail premises
- Property developments
Why Choose uPVC Window Cills?
Unlike timber window boards, uPVC window cills are resistant to moisture and everyday wear. They will not rot, warp or crack and are easy to maintain with simple cleaning.
The smooth factory-finished surface provides a neat appearance and helps create a professional finish around windows throughout the property.
Easy Installation
Internal window cills can be easily cut to size and fitted using suitable adhesives and fixings. Their lightweight construction makes installation straightforward for both professional installers and competent DIY users.
Internal Window Cills Bristol
Master Plastics has supplied window finishing products, building plastics and home improvement materials throughout Bristol since 1994. We stock a wide range of internal uPVC window cills and Duraboard window boards for trade and retail customers.
Call 0117 971 9922 or visit our Bristol trade counter for expert advice and competitive prices on Internal uPVC Window Cills.

