A 'blown' unit occurs when the perimeter seal fails, allowing moisture to replace the insulating Argon gas. This destroys the window's U-value and can lead to internal frame rot. We don't just replace the glass; we investigate the cause—often blocked drainage channels or frame movement—and remediate the substrate to ensure the new high-performance unit remains clear and efficient for decades.

Large-format glazing requires precise mechanical alignment. Over time, structural settling can cause doors to drop, compromising both security and airtightness. We provide mechanical recalibration and hardware overhauls, restoring smooth operation and Part Q security compliance for your Extensions and Outbuildings without needing to dismantle the structural opening.

For our Cottage & Period Homes clients, we offer 'Sympathetic Restoration.' We overhaul traditional timber sashes, remediating wet rot and re-balancing weights, while integrating slimline vacuum-glazing. This preserves the historic aesthetic of your London or Essex property while achieving thermal and acoustic performance comparable to modern units.

Yes. Maintaining a 'Golden Thread' of documentation is vital for property value. We provide formal verification for all works, ensuring compliance with Part L (Thermal) and Part Q (Security). All certificates and warranties are integrated into your Project Governance file for insurance and future sale purposes.