Installation of uPVC Patio Door

A residential property in Watford required a new patio door to replace an old, draughty sliding door that had become difficult to operate and insecure. The homeowners wanted a modern, secure, and energy-efficient solution that would complement the property’s contemporary exterior. The goal was to install a uPVC casement patio door in anthracite grey to enhance kerb appeal, improve thermal performance, and provide easy garden access.

Our Solution

We supplied and installed a high-performance anthracite grey uPVC casement patio door tailored to the property’s rear elevation. The solution included:

• Anthracite grey (RAL 7016) uPVC casement patio door with two side-hung opening panels
• A-rated double glazing with argon gas fill and low-E coating for superior thermal efficiency
• Multi-point locking system on the active door leaf with anti-snap cylinders
• Stainless steel friction hinges for smooth, controlled opening
• Low-threshold cill for step-free garden access
• Low-maintenance uPVC profiles that will not warp, yellow, or crack
• Reinforced frames for added strength and security
• Matching anthracite grey handles and hardware for a unified finish
• Concealed drop-down weather seals for superior draught protection

Installation Process

• Conducted precise laser measurement of the existing door opening
• Removed old sliding patio door carefully
• Disposed of all waste materials responsibly
• Inspected and prepared the structural opening, lintel, and sub-cill
• Installed new anthracite grey uPVC casement door frame using galvanised fixings and expanding foam
• Hung both door panels on stainless steel friction hinges
• Tested opening and closing operation and adjusted hinges as needed
• Installed double-glazed sealed units into both door panels
• Fitted multi-point locking mechanism and tested all locks
• Applied internal and external silicone seals for full weatherproofing
• Completed thorough clean of glass, frames, handles, and surrounding area