Mon - Fri: 9:00am - 5pm · Sat: 9:00am - 1pm
Window stuck shut, refusing to close, or handle spinning without unlocking? We diagnose and replace faulty espagnolette gearboxes, multi-point locking mechanisms, shootbolts and broken handles on outward-opening uPVC casement windows. The frame and glass can usually stay.
Mechanism repairs £175 per window · Handle-only replacement £108, including parts, labour and VAT for standard, safely accessible uPVC casements.
Send the whole window, handle and (if open) metal lock strip. A short video helps.
Free repair quote
A few quick taps. We aim to respond within 15–30 minutes during opening hours.
These real photos show the most common faults with outward-opening uPVC casement window locks and handles. The price beside each fault applies only if that part needs replacing — we check the cause before repairing. Standard mechanism replacement is £175; the first handle-only replacement is £108, including parts, fitting and VAT. Other scenarios and multi-window rates are explained below.
A stuck mushroom, shootbolt or failed gearbox may still be holding the sash locked. We assess safe release and replacement.
If cams or shootbolts don't move when the handle turns, suspect a stripped gearbox or drive. If they do move, check the keeps.
A stuck shootbolt, faulty handle or dropped sash can prevent closure. We check locking points, keeps and hinges.
Repair price depends on whether the fault is in the lock, handle or hinges.
Often handle-only replacement, unless the spindle socket or gearbox is also broken.
A correctly matched handle may solve it. Damaged gearbox fixing threads or spindle socket may require a mechanism too.
Damaged internal hardware may need replacing. We also consider the cause of corrosion.
| What our engineer finds | Total including VAT |
|---|---|
| Mechanism faulty; existing handle works | £175 |
| Mechanism and handle both faulty, same repair | £220 (£175 + £45) |
| Only one handle faulty | £108 |
| Three handles only, same visit | £216 (£108 + £54 + £54) |
| Three qualifying mechanisms, same job | £420 (£140 × 3) |
Important exclusions: The 20% multi-window offer does not apply to handles. The handle-only visit remains £108 for the first handle even if you have already bought one yourself. We will not quote a mechanism replacement when testing shows only the handle has failed.
Aluminium, unusual locks, difficult access and additional issues are priced individually. No call-out charge, and no fix, no fee on the agreed repair.
Do not force a stuck handle or try to lever open a jammed window. That can damage the gearbox, glazing, keeps or frame. If your window cannot be secured, tell us when you enquire.
Window fault finder
Answer two or three questions about what your window does. You’ll see which part has most likely failed, how we fix it and the fixed price.
3+ qualifying locks · one job
Replacing faulty locking mechanisms on three or more outward-opening uPVC casement windows in the same job? You qualify for our multi-window mechanism repair price. Prices include parts, fitting and VAT. Only qualifying mechanism replacements in the same job receive the 20% discount; window handles are excluded. We confirm the repair and final price before you book.
Per qualifying window
Standard
£175
With 20% off
£140
Qualifying repairs at the same property. We'll confirm eligibility with your quote.
We focus on the faulty part while preserving the existing window wherever practical.
WhatsApp the whole window, handle and (if already open) the metal lock strip, plus your postcode and number of affected windows.
Our engineer checks the handle spindle, gearbox, cams, bolts, keeps and hinges and explains what has failed before the repair.
We fit a matched mechanism or handle, test opening and secure closure, and back the fitted repair with a 1-year guarantee.
A jammed casement sometimes needs specialist release techniques before its faulty mechanism can be replaced. We aim to avoid damage, but the method and any limitations depend on the window's condition and access. Same-day appointments are subject to availability.
A side-hung or top-hung uPVC casement opens outwards. If its lock jams or the handle fails, it does not automatically mean the double-glazed glass or whole window needs replacing. We check which part is no longer operating correctly, so the repair is focused on the fault.
These windows typically use a multi-point espagnolette or shootbolt system fitted to the opening sash, separate from the sealed glass unit. We replace damaged gearboxes or locking strips where compatible parts are available, or fit a new inline handle if the lock itself is working. The images below show the hardware we assess.
The handle's spindle drives a gearbox, which moves the long lock strip. Broken internal teeth or rods can leave cams engaged.
A snapped lever, worn spindle or loose fixings can stop the lock working even when the gearbox is sound. We can change a uPVC window handle without replacing the glazing after checking the fit and operation.
Locking points should move when the handle operates and line up with frame keeps. A bent hinge can shift the alignment.
Where the sash can be opened safely, we operate the handle while checking whether the locking points move freely. We then inspect the spindle, gearbox, fixing points and frame keeps for wear or misalignment. That helps us decide whether to fit a handle, a complete mechanism or address a separate hinge issue.
Google reviews
Straight from our Google Business Profile, unedited. Real homes, real repairs and real replies from the team.
Based on 149 reviews on Google
Latest review last week
Abir Shahid
3 weeks ago
“Came and replaced my window hinges within an hour of contacting them. Fast and efficient service”
Window FixersResponse from the owner
Thank you so much for your lovely review! We’re really pleased we could get to you so quickly and replace your window hinges within an hour of your call. We always aim to provide fast, reliable and efficient window repair services. Thanks again for choosing us – we really appreciate your support!
Ruth Trenery-Leach
last week
“Did a great job of repairing two windows in my property. Price was reasonable too.”
Window FixersResponse from the owner
Thank you so much for your lovely review! We’re really pleased you’re happy with the repairs to both windows and found our pricing fair. It was a pleasure helping you, and we’re always here if you need us again!
Bruno Cappelletti
2 weeks ago
5-star rating
No written comment provided.
Window FixersResponse from the owner
Thank you for your 5-star rating! We’re glad we could help with your aluminium window lock and handle replacement. We really appreciate your support and for choosing Window Fixers!
S W
last month
“Extremely professional and incredibly fast. A true window repair expert.”
Window FixersResponse from the owner
Thanks so much for the lovely feedback! Really glad we could get your window repair sorted quickly and that you were happy with the service. We always try to make things as easy and stress-free as possible for our customers. Thanks again for choosing Window Fixers, we really appreciate it!
Charming One
2 months ago
Have been using Glazie Ltd for all of my properties when there are window issues and they have never let me down! One phone call and they are on the case. Never get the feeling of being ripped off and always completed on time. I can honestly recommended them to anyone.
Window FixersResponse from the owner
Thank you so much for your continued trust and support! It really means a lot to know you’ve been happy with our window repair services across your properties. We always aim to respond quickly, do a proper job and keep our pricing fair and honest. It’s been a pleasure helping you over the years, and we’re always just a phone call away whenever you need us. Thanks again for recommending Glazie Ltd and Window Fixers!
Lesli
3 months ago
Appointment arranged for my convenience. A bit expensive but “Mr Luke”, who attended, methodically worked through to accurately diagnose the fault and rectify a tilt and turn window so well worth sorting to ensure working properly and secure. .
Window FixersResponse from the owner
Thank you for taking the time to share your experience! Really pleased to hear Luke was able to get your tilt and turn window working properly and securely again. We know window repairs aren’t always an expected expense, but we do our best to make sure the job is done properly and provides a lasting solution. We’ll be sure to pass your kind feedback on to Luke. Thanks again for choosing Window Fixers, we really appreciate it!
Jags Rayatt
3 months ago
This company is fantastic ! From booking the job to completion. I was told by an experience fitter of 20 years that I'd need a new door but this company came in and sorted my door hinges out and Luke gave me more advise regarding my door. I will definitely be using them again and recommending to all my friends and family
Window FixersResponse from the owner
Thank you so much for the fantastic review and for recommending us to your friends and family! We’re really pleased Luke was able to get your door working properly again by repairing and adjusting the hinges, especially after you had been advised that the whole door needed replacing. At Window Fixers London, we always aim to repair before replacing wherever possible, whether it’s faulty door hinges, locks, handles or alignment issues. It’s great to hear you were happy with the service from booking through to completion. Thank you again for choosing Window Fixers London, we’ll be happy to help whenever you need us in the future!
Bullchuck Bullchuck
4 months ago
“Amazing fast work good value for money. Highly recommended”
Window FixersResponse from the owner
Thank you so much for your fantastic review! We’re delighted you were happy with the fast service and great value. It was a pleasure helping you with your window repair. If you ever need window or door repairs in London, whether it’s a broken lock, faulty hinges, misted double glazing or any other issue, we’re always here to help. Thanks again for recommending Window Fixers London!
Niall McSheffrey
4 months ago
Very pleased with Luke's work, very clean efficient and professional. Had hinge replaced and two locks to my windows. I thought i needed 3 hinges but informed 2 were in good working order which saved me money. Thank you.
Window FixersResponse from the owner
Thank you so much for your wonderful review! We’re delighted to hear Luke provided such a clean, efficient and professional service. We always believe in honest advice, so we’re pleased we could save you money by only replacing the parts that genuinely needed changing. Thank you for trusting us with your window hinge replacement and window lock repairs. If you ever need reliable window and door repairs in London, we’d be more than happy to help again. We really appreciate your support!
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Our repair coverage
Need a stuck casement lock released or a broken window handle replaced? Our engineers visit homes, flats and managed properties throughout Greater London and many parts of Kent. We repair outward-opening uPVC casement locking mechanisms and handles; availability depends on the postcode, access and work required.
We serve all London boroughs, including East, North, South, West and Central London. A few places our customers commonly enquire from:
Our Kent appointments include locations in North, West, Mid and East Kent, subject to our route and engineer availability:
These are example locations, not an exhaustive list. Appointments are confirmed individually; appearing on the list does not guarantee same-day availability.
Common questions about outward-opening uPVC double-glazed casement windows.
£175 for one standard outward-opening uPVC casement window, including parts, labour and VAT. For three or more qualifying mechanism replacements in one job, 20% off makes it £140 per window. Handles are not discounted.
It could be. A stripped gearbox or snapped drive may leave cams or shootbolts engaged. A worn handle spindle can cause similar symptoms. We test both before confirming which part needs replacing.
A stuck shootbolt or cam, gearbox fault, misaligned keep or dropped sash from worn hinges can prevent the window closing. Do not force it — we check the mechanism and alignment.
Often yes. We assess suitable release techniques, replace a failed mechanism if necessary and test operation. The safest method depends on the lock, window condition and access.
£108 including VAT for the first handle on a handle-only visit; £54 for each additional handle fitted on that visit. A handle fitted during another agreed repair is £45 extra.
For a standard uPVC casement, the mechanism is £175 and the handle fitted during that repair is £45, totalling £220 including VAT. We check that both parts really need replacing.
We normally supply a correctly matched handle and our standard handle-only visit charge is £108, even if a customer has bought one, because compatibility and lock function still have to be checked.
No. The 20% offer only covers qualifying mechanism repairs on three or more uPVC casement windows in the same job; handle-only and additional handle fitting are excluded.
An espagnolette uses a handle-driven gearbox to move a metal strip with locking cams or hooks. Shootbolt systems extend locking bolts towards the ends of the sash. Both can be repaired or replaced without automatically changing the glazing or frame.
If the rods move but don't align with the keeps, a dropped sash or hinges may be contributing. If the handle turns without moving the rods, the gearbox or handle is more suspect. We inspect to confirm.
We can assess some aluminium casement locks on an individual basis. Standard prices on this page are for outward-opening uPVC casements. Timber, sash, Velux, roof, single-glazed and secondary-glazed windows are excluded.
Send a whole-window photo, a close-up of the handle, a short video if useful, your postcode and number of affected windows via WhatsApp. We can discuss the likely repair and confirm availability.
