Residential glass repair
All other domestic window and door glass.
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Double glazed unit repairs
Double glazed unit repairs across Surrey & South West London
Misted glass, a failed seal, or a smashed sealed unit? You almost certainly don't need a new window. We make the glass to your measurements and fit it into the frames you already have.
Overview
Emergency and planned double glazed unit repairs
When a sealed unit's edge seal fails, moisture gets into the cavity and condenses between the panes. That's the misting you can't wipe off. It also means the unit has lost most of its insulating value — so it is costing you money on heating as well as looking poor.
The fix is to replace the glass unit alone. The frame, hinges, handles and trims stay exactly where they are. We measure on site, manufacture to size and fit — usually inside a week, and often much sooner.
Why choose us for your double glazing
- Emergency work completed speedily and expertly. Smashed sealed units secured immediately and replaced as a priority.
- Same-day service when you need it. Our 24-hour control centre means the time of day isn't the constraint.
- Windows big or small. From a bathroom fanlight to full-height glazing, we've the equipment and the people to handle it safely.
- Approved contractors. Quality workmanship — we're approved contractors for the police and for insurance companies.
Double glazed windows of all kinds
We've been repairing broken and failed double glazed units for over 20 years and can manufacture and replace all types. Annealed float glass, the latest low-emissivity energy-saving glass, toughened and laminated safety glass, patterned and obscured glass, leaded and Georgian bar units, acoustic glass for busy roads, and self-cleaning glass for roof units.
We'll also advise on the sensible upgrade. If a unit has failed anyway, going from old plain double glazing to a modern low-e, argon-filled unit with a warm-edge spacer costs a little more and meaningfully improves the room.
Free quotes on your double glazing
Free, no-obligation quotes and a fast service make Fast Glass a sensible first call. If you need a double glazed unit repaired as a priority, our team are here to help — and if it turns out the frame is the real problem rather than the glass, we'll tell you that rather than sell you a unit that won't fix it.
Related services
24/7 emergency glaziers
Smashed unit? We'll secure it within the hour.
Learn moreCommercial glass replacement
Sealed units for offices, shops and managed property.
Learn moreWhere we work
Covering Surrey and South West London from our Addlestone yard, 24 hours a day.
Answers
Frequently asked questions
Can a misted double glazed unit be repaired rather than replaced?
Not reliably. There are drilling-and-drying services advertised, but once the perimeter seal has failed the unit will re-mist and the insulating gas is already gone. Replacing the sealed unit is the proper repair and it isn't expensive.
Do you replace the whole window?
No — just the glass unit, in the vast majority of cases. The frame, hinges and handles stay. That's what makes this a repair rather than a replacement window, and it's why it costs a fraction of what a new window does.
How long does it take?
We measure on site, then the unit is manufactured to size. Standard clear units are typically ready in two to five working days; patterned, toughened, leaded or oversized units take a little longer. Fitting takes around half an hour per window.
What is low-emissivity glass and is it worth it?
Low-e glass has a microscopically thin metallic coating that reflects heat back into the room while still letting light through. Combined with an argon-filled cavity and a warm-edge spacer it roughly halves the heat loss of older double glazing. If you're replacing a failed unit anyway, the upgrade cost is small and it pays back.
Can you match Georgian bars or leaded lights?
Yes. We supply units with internal Georgian bars in a range of widths and finishes, and leaded or stained-effect units to match existing windows. Send us a photograph and a measurement and we'll match it.
Talk to a glazier
Get your free, no-obligation quote
Tell us what's broken or what you'd like made. We'll give you a clear price with no surprises — and if it's an emergency, we aim to be with you inside the hour.