Misted windows fixed
in under an hour
Double Glazing Repair for the Valleys
We replace the failed glass unit and leave your frame exactly where it is. A fraction of the cost of a new window.
The problem, explained
A lot of people ask: why can’t I just clean it?Double-glazed windows are two panes of glass factory-sealed with argon gas between them. When the seal fails, moisture gets in and condenses on the inside of the glass.
There's no way to clean inside a sealed unit — the only fix is to replace it. That's what we do. The frame stays exactly where it is.
Our Services
Misted double glazing
Failed sealed units replaced. Frame stays. Under an hour.
uPVC window repairs
Handles, hinges, locks, and draught seals fixed.
uPVC door repairs
Locks, handles, dropped doors, gearbox replacement.
Broken glass replacement
Cracked or smashed panes, toughened safety glass.
Obscure & frosted glass
Bathroom privacy glass, pattern-matched.
Cat flap fitting
New unit with factory-made aperture.
How It Works
Send a photo
WhatsApp or email a picture of the problem.
We measure and quote
We visit, measure up, and give a fixed price.
Your glass is made
Ordered to size, A-rated, argon-filled.
Fitted within the week
Usually a single visit. 15–30 minutes per unit.
Why SwiftGlaze
Repair specialists
We fix windows — we don’t sell them. No pushy sales, no unnecessary replacements.
Fixed price upfront
Agreed before any work starts. No surprises on the invoice.
Fully insured
Public liability insurance and a 10-year manufacturer guarantee on every sealed unit.
Honest advice
If a repair isn’t right for your situation, we’ll tell you — and point you to someone who can help.
Areas We Cover
Free within 15 miles of Tonypandy. Beyond that, £1 per mile — confirmed in the quote before booking.
See full list of townsReady to fix your windows?
Get a free, no-obligation quote. Fixed price agreed before any work starts.