Looking for misted unit replacement in Durham? S&K Glazing has been installing across County Durham for over a decade. Misted or 'blown' double glazing happens when the seal between the two panes fails, letting moisture into the sealed unit cavity. The trapped moisture condenses and looks like permanent fogging.
Misted or 'blown' double glazing happens when the seal between the two panes fails, letting moisture into the sealed unit cavity. The trapped moisture condenses and looks like permanent fogging. The good news: in most cases you don't need to replace the whole window — just the failed sealed unit inside the existing frame. S&K Glazing replaces misted units across the UK, typically same week, often with no scaffolding required.
Durham's UNESCO World Heritage cathedral and castle dominate the city's conservation profile — listed-building secondary glazing and heritage timber sash restoration are core work across the DH1 peninsula. We also serve the wider university-driven residential market with modern double glazing.
For window-replacement work in Durham, the property mix across North East ranges from period stock through to modern new-build, so we specify the thermal solution per property — A++ rated double-glazed sealed units for standard upgrades (U-value 1.4 W/m²K), A-rated solar-control glazing for south-facing elevations, and triple-glazed argon-filled builds achieving 0.8 W/m²K for owners targeting near-Passivhaus performance. Most commonly we're working in DH1 postcodes.
We visit, measure the failed unit, identify the glass thickness and any obscure pattern, and quote a fixed price.
Standard clear units: 3-5 working days. Obscure or patterned glass: 5-10 days.
Most misted units are swapped in 20-30 minutes per window. A full house of 8-10 windows is typically completed in a single morning.
Free survey, fixed-price quotes, no pressure sales. Call us, message on WhatsApp, or fill in the form — we typically respond within an hour during working days.
Local survey, fixed-price quote, no obligation.
