uPVC Door Lock Repair
South London
Handle floppy? Door won't lock when closed? Key stuck halfway? About 70% of uPVC door problems are a gearbox or handle repair, not a full strip replacement. We diagnose in 5 minutes, quote a fitted price on the spot, and carry every major brand in the van.
Fixed prices · No VAT add-ons · No call-out fee
Most uPVC door lock problems are fixable without replacing the whole door
When your uPVC door stops locking, the panicked first thought is usually "new door, new strip, new everything". The reality is tamer: about 70% of the jobs we attend in South London are a single-part repair — a handle, a gearbox, a cylinder, or a hinge adjustment. The door skin is almost always fine. Our DBS-checked engineers carry every major brand in the van, so we diagnose and fix in one visit.
The rogue operator move is to quote £450+ for a "full multipoint replacement" before they've even touched the door. We refuse to do that. Every visit starts with a free 5-minute diagnosis: we identify the brand (Fullex, Winkhaus, ERA, Fuhr, Mila, Lockmaster), pinpoint the broken part, and quote a fitted price before we reach for a spanner. If you want the background theory on uPVC multipoint systems, our locksmith advice blog covers BS3621 compliance and gearbox grading. Same prices across our entire service area — SW, SE, CR, SM, and BR postcodes.
The repair-before-replace pledge: we will always try the cheaper fix first. If a £150 handle swap solves it, that's what we fit. If a £350 gearbox does it, that's what we fit. Full £450 strip replacements only happen when the multipoint is genuinely dead — and we show you why before you agree. Get in touch for a diagnosis first.
Fixed uPVC Repair Prices by Problem Type
Every figure below is the total we invoice — parts, labour, VAT, call-out, and the drive to your postcode. No hourly rate creep, no forced replacement upsell.
Gearbox-Only Repair
Multipoint centre case swap — direct like-for-like, keeps your existing hooks & shoot bolts.
Handle Replacement
Inside & outside handle set swap, including split or single spindle.
Euro Cylinder Change
Standard 5-pin cylinder, correctly sized (no overhang, no snapping risk).
Anti-Snap TS007 3-Star Upgrade
Kitemarked cylinder that resists lock-snap attacks. Insurance-recommended.
Full Multipoint Strip Replacement
Complete multipoint rebuild — new gearbox, hooks, shoot bolts & keeps. Only when genuinely needed.
Emergency Lockout Entry
Non-destructive entry first. We don't drill unless we have to, and we tell you before we do.
Broken Key Extraction
Key snapped in the cylinder — removed without damaging the lock body.
Dropped Door Realignment
Hinge adjustment to re-seat the door in its frame so the multipoint engages again.
Diagnose your uPVC door in 30 seconds
Six symptoms, six likely causes, six honest prices. Tell us which one matches on the phone and we'll confirm on arrival.
Handle feels floppy or spins freely
The internal gearbox spring cassette has failed — nothing connects the handle to the locking cams.
Handle won't lift to lock the door
Either the door has dropped on its hinges and the hooks can't reach the keeps, or the gearbox levers are jammed.
Key turns but the door won't lock
Cylinder is fine — the issue is between the cylinder cam and the gearbox dead bolt.
Key stuck half-way, won't turn or come out
Pins inside the Euro cylinder are worn or a foreign object has jammed the keyway.
Door drags on the threshold or frame
The door has dropped on its flag hinges. Common in older properties and after hot weather.
Everything works — except when it's hot or cold
Door has expanded/contracted and the hooks no longer line up with the keeps. Alignment, not parts.
We carry every major uPVC brand in the van
Not sure what yours is? Send us a WhatsApp photo of the faceplate — we'll identify it in under a minute. No waiting two weeks for a "special order" gearbox.
Fullex
Crimebeater series. Common failure: centre-case cams snap after 10–15 years. Gearbox-only repair available.
In Van StockWinkhaus
STV and AV2 ranges. Known for reliability but the electronic models need OEM parts. Direct replacement or upgrade.
In Van StockERA Saracen
Saracen and Vectis series. Budget-friendly common fit on 2000s new builds. Easy to identify by the flat brass faceplate.
In Van StockFuhr
Multisafe 855 and similar. High-end German engineering, sealed gearboxes. Specific fitment required, we stock it.
In Van StockMila / Master
Prolinea and Master series. Usually fitted to composite doors. Handle & gearbox sold as matched sets.
In Van StockLockmaster / GU / Roto
Older and premium ranges. Less common but we carry adapters for direct like-for-like replacement.
Bespoke OrderHow we diagnose and quote — every time
Send a photo
Call or WhatsApp a photo of the handle, faceplate, and keeper. We identify the brand and shortlist the likely cause before we leave the depot.
5-minute on-site diagnosis
On arrival we confirm the fault in under 5 minutes, show you the broken part, and give you the fitted price in writing before any work starts.
Fitted, tested, guaranteed
Repair completed in one visit, tested 5–6 lock cycles, 12-month workmanship guarantee. Card, cash, or bank transfer accepted on completion.
Same repair prices, every South London postcode
We don't add "zone surcharges" for far-side jobs. The fitted price is identical whether you're in Balham SW12 or Penge SE20.
Postcodes covered
Boroughs & areas
Croydon, Sutton, Wallington, Purley, Coulsdon, Thornton Heath, South Croydon, Sanderstead, Kenley, Norbury, Streatham, Clapham, Brixton, Balham, Tooting, Wimbledon, Wandsworth, Putney, Lambeth, Camberwell, Peckham, Dulwich, Forest Hill, Sydenham, Crystal Palace, Bromley, Beckenham, Mitcham, Morden, Carshalton. Same fitted repair price across every borough.
Why South London books us for uPVC door repairs
Real South London uPVC repair stories
"Two other firms quoted me £500+ for a full strip replacement on my Fullex door. These guys turned up, looked at it for two minutes, said 'that's a gearbox, we carry it'. £350 fitted, done in 40 minutes. The handle works perfectly."
"My front door dropped over the summer and wouldn't lock anymore. I was sure I needed a whole new door. They spent twenty minutes adjusting the hinges and keep plate — £150 fitted, no parts needed. Proper honest work."
"Back door handle snapped off in my hand mid-lock. Sent a WhatsApp photo at 8am, they confirmed it was a Winkhaus STV, arrived by 9.30 with the exact part. £150 for the handle swap including new screws. Insurance happy, wife happy."
uPVC Door Lock Repair FAQ
Why won't my uPVC door lock when closed?
Why won't my uPVC door handle lift to lock?
How do you open a uPVC door when the lock mechanism is broken?
Can a uPVC door lock be repaired or must it be replaced?
How much does it cost to repair a uPVC door lock in the UK?
Also serving uPVC door customers across South London
Same repair prices, same 30–45 minute arrival, every location and service below.
Explore the site
Related locks & problems
uPVC door locking up on you in South London?
Send us a WhatsApp photo of the handle and faceplate. We'll identify the brand, diagnose the fault, and be on your doorstep inside 45 minutes with the exact part.
24/7 emergency locksmith serving South London since 2015 — trusted by homeowners, landlords and businesses across Sutton, Mitcham, Wallington, Cheam, Purley and surrounding areas.