Aluminium Bi-Fold Door

A contemporary home in Oxhey had recently completed a rear extension to create an open-plan kitchen and dining area. The existing French doors failed to make the most of the garden views and limited the connection between indoors and out. The homeowners wanted a dramatic, floor-to-ceiling glazing solution that would maximise natural light, provide effortless garden access, and add a sleek, modern focal point to the living area. The goal was to install an aluminium bi-fold door to transform the space and create a seamless indoor-outdoor flow.

Our Solution

We supplied and installed a premium aluminium bi-fold door system tailored to the extension opening. The solution included:

• Four-panel aluminium bi-fold door with ultra-slim profiles for uninterrupted garden views
• Bottom-mounted stainless steel rollers for smooth, quiet folding operation
• Thermally broken profiles for energy efficiency and condensation control
• Low-threshold cill for step-free garden access
• Multi-point locking system with high-security handles
• Double glazing with low-E coating and argon gas fill
• Powder-coated finish in dark grey (RAL 7016) to complement the extension’s exterior
• Concealed drop-down seals for superior weatherproofing
• Matching handles and hardware for a unified finish

Installation Process

• Conducted precise laser measurement of the extension opening
• Coordinated with the extension build schedule to ensure timely installation
• Checked structural lintel and floor levels for proper alignment
• Installed steel reinforcement where required for the bi-fold system
• Lifted aluminium bi-fold door frame into position using precision packers
• Mechanically fixed the frame to the new masonry and timber studwork
• Hung each door panel and adjusted bottom rollers for perfect alignment
• Fitted double-glazed sealed units into all panels
• Installed multi-point locking mechanism and tested all locking points
• Applied internal and external silicone seals for airtight, watertight finish
• Tested folding and sliding operation across all panels multiple times
• Completed thorough clean of all glass, tracks, frames, and surrounding areas