Aluminium Windows Installation

A prestigious apartment in the City of Westminster required a complete window upgrade as part of a wider interior refurbishment. The existing windows were single-glazed, draughty, and failed to meet modern thermal and acoustic standards—a particular issue given the property’s central London location. The residents wanted a premium solution that would reduce street noise, improve energy efficiency, and complement the building’s elegant architecture. The goal was to install aluminium windows throughout the flat to deliver superior performance, a sleek contemporary aesthetic, and lasting value.

Our Solution

We supplied and installed a bespoke aluminium window system tailored to the flat’s individual openings and the building’s architectural character. The solution included:

• Slim-profile aluminium casement windows with concealed friction hinges for clean, unbroken sightlines
• Tilt-and-turn configurations for safe, controlled ventilation in bedrooms and living areas
• Thermally broken aluminium profiles to eliminate cold bridging and prevent condensation
• High-performance double glazing with low-E coating and argon gas fill for superior thermal efficiency
• Acoustic-enhanced glazing to significantly reduce traffic and city noise
• Multi-point locking systems with anti-snap cylinders and Secured by Design accreditation
• Powder-coated finish in a colour selected to satisfy any building management or conservation requirements
• Matching handles and hardware for a unified, premium finish
• Concealed trickle vents for compliant ventilation without compromising aesthetics

Installation Process

• Conducted a detailed site survey with precision laser measurements of every window opening
• Liaised with the building management team regarding access, working hours, and any façade or conservation restrictions
• Completed all necessary paperwork and risk assessments prior to commencement
• Protected all internal floors, furnishings, and communal areas before work began
• Removed existing windows carefully to preserve surrounding brickwork, stonework, and internal finishes
• Disposed of all waste materials responsibly, including arranging controlled removal from the building
• Inspected and prepared lintels, reveals, and sills for the new aluminium system
• Lifted aluminium frames into position using precision packers and laser levels for perfect alignment
• Mechanically fixed all frames to the structure ensuring zero movement
• Fitted double-glazed sealed units into each frame
• Installed tilt-and-turn mechanisms and adjusted all hinges for smooth operation
• 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
• Completed thorough clean of all glass, frames, sills, and surrounding areas
• Conducted a final walkthrough with the residents to confirm satisfaction