uPVC Windows Installation

An apartment in Chesham required a full set of replacement windows after the existing units had reached the end of their service life. The frames were draughty, several sealed units had failed with visible condensation between the panes, and the white profiles had discoloured over time. The residents also wanted to reduce noise from the road below. The goal was to install energy-efficient, low-maintenance white uPVC windows that would improve thermal comfort, cut noise, and freshen the appearance of the apartment without disrupting the building’s overall aesthetic.

Our Solution

We supplied and installed high-performance white uPVC double-glazed windows throughout the apartment. The solution included:

• White uPVC casement windows with side-hung openings and concealed friction hinges
• A-rated double glazing with argon gas fill and low-E coating for superior thermal insulation
• Multi-chambered uPVC profiles to reduce heat loss and prevent condensation
• Acoustic-enhanced glazing to front-facing rooms to reduce road noise
• Multi-point locking systems with anti-snap cylinders and security handles
• Trickle vents for compliant background ventilation
• Reinforced frames for added strength and security
• Matching white sills, trims, and hardware for a cohesive finish

Installation Process

• Carried out a detailed pre-installation survey with laser measurements of every opening
• Liaised with the freeholder and managing agent regarding access, working hours, and any building restrictions
• Confirmed window styles, glazing options, and finishes with the residents
• Completed all necessary paperwork, method statements, and risk assessments prior to commencement
• Protected internal floors, furnishings, and communal areas before work began
• Removed the existing windows carefully to preserve brickwork, reveals, and internal plaster
• Disposed of all old frames and glass responsibly, including controlled removal from the building
• Inspected and prepared lintels, reveals, and sills
• Installed new uPVC frames using galvanised fixings and expanding foam
• Fitted double-glazed sealed units into each frame
• Adjusted all hinges, handles, and locking mechanisms for smooth operation
• Fitted and tested multi-point locking systems on every window
• Applied internal and external silicone seals for airtight, watertight weatherproofing
• Cleaned all glass, frames, sills, and surrounding areas thoroughly
• Conducted a final walkthrough with the residents to confirm satisfaction