How much does window repair cost in United Kingdom?
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Key takeaways
- Most window repair jobs in United Kingdom land between £60–£800 — known locally as window and double glazing repair.
- Repairs and sealed-unit swaps don't trigger FENSA/Building Regulations the way full replacement does, which is one reason repair-first is attractive in the UK — especially in conservation areas where replacement needs consent. The double-glazing repair sector is well established nationwide.
- Prices below are researched national ranges, updated July 2026 — not quotes.
Window Repair prices by job size in United Kingdom
| Job size | Low | Typical | High |
|---|---|---|---|
| Hardware repair Replace hinges, locks or handles on one window | £60 | £120 | £220 |
| Sealed unit replacement Replace one misted double-glazed unit | £100 | £200 | £350 |
| Sash window overhaul Full overhaul and draught-proofing of one sash window | £250 | £450 | £800 |
Per-unit rates
| Unit | Low | Typical | High |
|---|---|---|---|
| per hour | £40 | £60 | £90 |
What affects the price
- Job size and scope — bigger or more complex jobs move you up the ranges above.
- Access and condition — hard-to-reach areas, older properties or neglected maintenance add labour time.
- Materials and quality level — where materials are involved, the grade you choose often matters more than labour.
- Urgency — same-day or out-of-hours work usually carries a premium.
- Where you live — large metros in United Kingdom typically run above the national range; smaller towns below it.
How to save
- Get at least three quotes and compare like-for-like scopes, not just totals.
- Be flexible on timing — off-peak slots are often cheaper.
- Bundle related tasks into one visit to spread call-out costs.
- Agree the scope in writing up front to avoid change-order surprises.
How to hire a window repair pro in United Kingdom
- Search for 'double glazing repairs' — a distinct UK trade fixing misted units, hinges, locks and gaskets without replacement
- For period homes, use sash window specialists for overhauls and draught-proofing
- Check reviews on Checkatrade and ask about van-stock of common uPVC hardware
- Get the new sealed unit's guarantee in writing (5-10 years is normal)
- In conservation areas, repairs avoid the consent issues replacement can raise — a point in repair's favour
- Ask for a fixed quote per window for multi-window jobs
Red flags
- Insists misted units mean full window replacement
- No guarantee offered on new sealed units
- Quotes without measuring the unit or identifying the profile
- Cash-only, no paperwork
- Pressure-sells an upgrade package during a repair visit
How Handld researches prices
These are researched estimates, not quotes and not our transaction data. We compile ranges from published sources — national statistics, trade bodies and incumbent cost guides — normalise them to GBP, and adjust city pages by a population-based cost tier. Last updated July 2026. Basis: Checkatrade window repair cost guide; UK sash window specialist pricing.
Frequently asked questions
What does a sash window overhaul include?
A full overhaul strips the sashes out, replaces cords/springs and beads, eases and adjusts, adds draught brush seals, and re-hangs. It transforms operation and draughts while keeping original glass and joinery — the standard treatment for period timber windows before anyone talks replacement.
Can draughty windows be fixed?
Yes — new compression seals/weatherstripping, hinge adjustment and lock realignment fix most draughts, and sash specialists rout in brush seals on older windows. It is one of the highest-payback repairs: cheaper heating bills and less noise without replacing anything.
Is it worth repairing a window or should I replace it?
Repair wins when the frame is sound: misted glass units, broken hardware, draughts and stiff sashes are all fixable at a fraction of replacement cost. Replace when frames are rotten through, warped, or repairs recur — or when energy performance is the real goal and the windows are single-glazed anyway.
Do window repairs come with a warranty?
Reputable repairers warranty parts and labour — typically 1-2 years on hardware and 5-10 years on new sealed glass units. Ask specifically, because warranty length on the sealed unit is a good proxy for the quality of unit they fit.
Why is my window stiff, dropping, or not closing properly?
Usually worn friction hinges, tired rollers on sliders, or a dropped sash catching the frame. These are standard parts a repairer replaces in under an hour. Ignoring a dropping casement eventually strains the frame and glass, turning a cheap fix into a big one.
Can I just replace the glass in my blown double glazing?
Yes — replacing the sealed unit in the existing frame typically costs £100-300 per window versus £400-800+ for a new window, and needs no FENSA certificate. It's the standard fix when frames are sound.
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