Aluminium Windows & Doors

A large detached property in the affluent Hertfordshire village of Kings Langley required a complete glazing upgrade. The existing windows and doors were outdated, thermally inefficient, and detracted from the property’s substantial architectural presence. The homeowners wanted a premium, cohesive solution that would deliver exceptional thermal performance, enhance kerb appeal, and create a striking architectural statement. The goal was to install black aluminium windows and doors throughout the property to achieve a bold, contemporary aesthetic while improving energy efficiency, security, and long-term value.

Our Solution

We supplied and installed a bespoke black aluminium window and door system across the entire property. Black aluminium has become the fastest-growing colour choice for premium residential projects in 2026, delivering sharper, more architectural lines—particularly on slim sightline frames. The solution included:

• Slim-profile aluminium casement windows with concealed friction hinges, finished in matt black (RAL 9005) for a bold, architectural edge
• Aluminium entrance door with decorative double-glazed panels and multi-point locking
• Aluminium French or sliding patio doors for rear garden access
• Thermally broken aluminium profiles (using high-quality thermal break technology) to eliminate cold bridging and meet building regulations
• High-performance double glazing with low-E coating and argon gas fill for superior thermal efficiency (achieving U‑values as low as 1.2–1.3 W/m²K)
• Acoustic-enhanced glazing for front-facing rooms to reduce external noise
• Multi-point locking systems with anti-snap cylinders and Secured by Design accreditation
• Stainless steel friction hinges with adjustable tension for smooth, controlled operation
• Low-threshold cills for step-free garden access
• Matching black handles and hardware for a unified, premium finish
• Hardwearing polyester powder coating, baked onto the aluminium for a durable, low-maintenance surface backed by a ten-year guarantee

Installation Process

• Conducted a detailed site survey with precision laser measurements of every opening
• Coordinated with the homeowners to finalise window configurations, door styles, and hardware choices
• Removed existing windows and doors carefully to preserve surrounding brickwork and internal finishes
• Disposed of all waste materials responsibly
• Inspected and prepared lintels, reveals, and sills for the new aluminium system
• Installed steel reinforcement where required for larger window and door spans
• Lifted black aluminium frames into position using precision packers and laser levels for perfect alignment
• Mechanically fixed all frames to the structure ensuring zero movement, allowing a 5-10mm gap for thermal expansion
• Fitted double-glazed sealed units into all frames
• Hung doors on heavy-duty stainless steel hinges and adjusted for perfect alignment
• Installed multi-point locking mechanisms and tested every lock
• Spray-foamed all perimeter gaps with high-expansion insulation foam
• Applied internal and external silicone seals for airtight, watertight weatherproofing
• Adjusted all hinges, handles, and locking mechanisms for smooth operation
• Completed thorough clean of all glass, frames, and surrounding areas
• Demonstrated operation of all windows and doors to the homeowners