White Smooth uPVC Window Cill 90° Internal Joint Trim 150mm

Our White Smooth uPVC Window Cill 90° Internal Joint Trim (JTA90I64) is designed to securely and seamlessly join two window cills at internal corners. Made from tough, colour-safe uPVC, this trim provides a durable, low-maintenance solution that maintains a neat and professional finish for years. Engineered to match all our window cill profiles, this trim is resistant to scratches, heat, and moisture, making it ideal for long-term use. Its smooth surface ensures a clean, wipeable finish, and requires no sanding, painting, or additional treatment.

Technical Specification

• Colour: White
• Width: 150 mm
• Finish: Smooth
• Material: Durable, colour-fast uPVC
• Application: 90° internal joint for joining two window cills
• Maintenance: Low maintenance – wipe clean with a damp cloth
• Durability: Resistant to scratches, heat, moisture, warping, and cracking

Key Benefits

• Seamless Connection: Joins two window cills securely for a professional finish.
• Durable & Long-Lasting: Tough, warp-resistant, and colour-fast uPVC construction.
• Low Maintenance: Requires minimal upkeep; simply wipe clean.
• No Additional Finishing Required: Ready to install – no sanding, painting, or treatment needed.
• Scratch, Heat & Moisture Resistant: Ideal for all internal window cill installations.