Chelsea · Greater London
Window Repairs in Chelsea
Is your uPVC door in Chelsea dragging, sticking or hard to lock? Our glaziers can adjust it or replace the gearbox, hinges or cylinder.
- SW3
- SW10
- SW7
- Guide from £65
Chelsea: window hinge replacement
Friction stays are the hinges on most uPVC and aluminium casement windows. When the sliding shoe wears or the arms bend, the window drops, binds or will not stay open. Replacements must match the stay's length, stack height and type, which the glazier measures before ordering.
Euro cylinders are the key barrels in most uPVC and composite doors. Standard cylinders can be vulnerable to lock snapping. Cylinders tested to TS 007 with a 3-star rating, or certified to Sold Secure SS312 Diamond, are designed to resist this type of attack.
The cost of a window or door repair depends on the part needed, whether it is a standard or discontinued design, how easy it is to identify the make, the number of windows or doors, and access. Discontinued hardware sometimes needs a modern equivalent and adaptation to fit.
A uPVC or composite door with a multipoint lock has one central gearbox that drives hooks, rollers or bolts along the door edge. A failed gearbox can leave the door stuck locked or unable to lock. In many cases only the gearbox needs replacing, not the whole strip.
What's included
- Written quote fixing the price for parts and work
- Survey and diagnosis of the faulty part
- Adjustment of dropped or sticking doors and sashes
- Check that windows and doors lock and seal

About Chelsea for this job
- Postcodes covered
- SW3, SW10, SW7 and the surrounding area, including Fulham, Kensington and Clapham
- Coast
- Chelsea is well inland, around 37 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Chelsea the midwinter sun reaches about 15° above the horizon at noon, with roughly 7.6 hours of daylight, rising to about 62° and 16.4 hours in midsummer. Windows and doors on sunny elevations expand and contract more with temperature, which can make them stick in summer and catch the frame. Dark-coloured doors absorb more heat, so hinge adjustment may be needed after hot spells.
- Access and setting
- Older rural homes may have timber casements, sash windows or doors with discontinued hardware, so parts may need matching or adapting. Exposed sites put more strain on hinges and seals, and outbuildings often benefit from upgraded locks.
- Rules in England
- Approved Document Q applies to new homes in England, where doors and windows are expected to meet PAS 24 or an equivalent standard. It does not apply to replacements in existing homes, but PAS 24 products are still a sensible choice.
Guide prices in Chelsea
| Typical job | Guide price inc VAT |
|---|---|
| Replace a pair of window hinges | £95 – £145 |
| Replace a window locking mechanism | £125 – £195 |
| Replace a door multipoint lock | £195 – £325 |
| Fit an anti-snap cylinder | £65 – £115 |
Get a guide price for your size
Approved Document B covers escape windows. Where an existing window is an escape route, typically in first-floor bedrooms, its replacement should give at least the same escape opening as before.
What you can choose
Multipoint door lock
A new gearbox or full locking strip for uPVC and composite doors that stick, will not lock or have a loose handle.
Handles and window restrictors
New locking handles for windows and doors, and restrictors that limit how far upper-floor windows open.
Espagnolette lock and gearbox
Replacement locking bar or gearbox for windows that will not lock, have a spinning handle or feel stiff to operate.
Window Repairs in Chelsea: questions
What does it cost to replace a window hinge or door lock?
The cost depends on the part, whether it is standard or discontinued, how many windows or doors need work, and access. Gearboxes and full multipoint strips cost more than a single handle or cylinder. See the guide prices for typical repairs, then get a written quote once the glazier has identified the exact part needed.
Can you find parts for old or discontinued windows?
Often, yes. Many hinges, locks and gearboxes are made to common sizes, and modern equivalents exist for many older designs. The glazier measures key dimensions such as backset, length and stack height. If an exact match is not available, the quote will explain the nearest option and any adaptation needed.
Can you repair a uPVC window that will not close properly?
Usually, yes. Windows that will not close are most often caused by worn or bent friction stays, a sash that has dropped, or a locking cam catching the keep. The glazier identifies the fault, then replaces the hinges, adjusts the keeps or repacks the sash so it closes and locks properly again, keeping the existing frame and glass.
How do I look after window and door hardware?
Clean dirt from tracks, keeps and hinges, then apply a light machine oil or silicone spray to moving parts once or twice a year. Keep frame drainage slots clear. Do not force handles that feel stiff, as this can break gearboxes. Report a dropping door or sticking handle early, as small adjustments are easier than replacing parts.
Do you cover Chelsea for window repairs?
Yes. We can quote for window repairs across Chelsea and the surrounding Greater London area, including postcode districts SW3, SW10 and SW7, and nearby Fulham, Kensington and Clapham. Start with your postcode on the quote form and a glazier will talk through the job, explain any charge before booking and give you a written quote.
Get a written quote in Chelsea
Clear guide prices, any charge explained before booking, and one point of contact for every glazing job.