The short version. uPVC Door Gearbox Replacement Southampton with Keywise starts from £225, agreed before any work begins, with no call-out fee and no VAT. For anything urgent I aim to be with you in around 30 minutes across Southampton and the Waterside, and the number you call is answered by Bugsy himself.
When the handle lifts but nothing happens, or it flops and will not throw the hooks, the gearbox inside the multipoint mechanism has failed. It is the single most common uPVC door fault I am called out for on the Waterside.
When you need this
- The handle spins, lifts limply, or jams half-way
- The door will only lock if you lift and wrestle it
- You can hear the mechanism but the bolts do not shoot
What is included
- Correct gearbox identified for your specific door and strip
- Gearbox supplied and fitted, door re-aligned and tested
- Handles and cylinder checked while the door is open
From £225, depending on the mechanism. If the whole locking strip has gone rather than just the gearbox, I will show you and quote that before any work.
Family-run, Waterside-based since 2013, DBS checked and fully insured, with a perfect 5.0 Google rating. No call-out fee, no VAT, and a 12-month guarantee on every part fitted. The price I quote is the price you pay, agreed before I start.
Need a locksmith now? Bugsy answers the phone himself, no call centre. No call-out fee. Call 07453 327708 for a quick honest quote.
Why gearboxes fail on uPVC doors
A gearbox does not usually go all at once. It gives you warning first. The handle starts feeling stiff, or you have to lift it twice to get the hooks up, or the door only locks properly on a good day. Most people put up with it for weeks. The trouble is, once the gearbox finally jams with the door shut, you are locked out or locked in, and that is a worse job on the day. If your handle is behaving oddly, get it looked at before it strands you. It is a cheaper fix caught early.
There are a lot of different mechanisms out there, and the gearbox in your door has to match the strip it sits in. Get the wrong one and the door will not line up or the hooks will not seat. I carry the common types and I identify the exact one for your door before I fit anything. While the door is open I will check the handles and the cylinder too, because a worn cylinder or a dropped door often puts strain on the gearbox in the first place. No point fitting a new part into the same problem.
Fixed price, quoted before I start
The gearbox replacement is from £225, depending on your mechanism. If I open it up and find the whole locking strip has gone rather than just the gearbox, I will show you the difference and quote that before I touch it. No surprises. While I am there, if your cylinder needs sorting, I can fit an anti-snap TS007 3-star cylinder from £150, but only if it needs it. I will tell you straight either way.
- No call-out fee and no VAT
- 12-month guarantee on every part fitted
- Price agreed up front, before any work starts
- Covering the Waterside and across Southampton, Hythe, Holbury, Fawley, Dibden, Marchwood, Totton and the New Forest
Most SO45 emergencies I am on-site within half an hour, day or night, weekends and bank holidays included. Bugsy answers the phone himself, no call centre. Call 07453 327708 or the office on 02381 550025.
Common questions
How do I know if my uPVC door gearbox has failed or if it’s something else?
If the handle lifts but nothing happens, flops limply, or jams half-way, that is usually the gearbox inside the multipoint mechanism. Other signs are hearing the mechanism but the bolts not shooting, or the door only locking if you lift and wrestle it. While the door is open I check the handles and cylinder too, because a worn cylinder or a dropped door often strains the gearbox in the first place. I will tell you straight what has gone.
How much does uPVC door gearbox replacement cost in Southampton?
Gearbox replacement is from £225, depending on your mechanism. If I open it up and find the whole locking strip has gone rather than just the gearbox, I will show you the difference and quote that before I touch anything. If your cylinder also needs sorting, an anti-snap TS007 3-star cylinder is from £150, but only if it needs it. No call-out fee, no VAT, and the price I quote is the price you pay, agreed before I start.
Can you replace a uPVC door gearbox the same day, and how quickly can you get to me?
Yes, day or night. Most SO45 emergencies I am on-site within half an hour, weekends and bank holidays included. Bugsy answers the phone himself, no call centre. Call 07453 327708 or the office on 02381 550025 and I will give you a quick honest quote. If your handle is behaving oddly, best to get it looked at before it jams and strands you locked out or locked in.
Which gearbox will fit my uPVC door?
The gearbox has to match the locking strip it sits in, and there are a lot of different mechanisms out there. Fit the wrong one and the door will not line up or the hooks will not seat. I carry the common types and I identify the exact one for your specific door before I fit anything. While the door is open I check the handles and cylinder as well, so no point fitting a new part into the same problem.
Which areas do you cover for uPVC gearbox repairs?
I cover the Waterside and across Southampton, Hythe, Holbury, Fawley, Dibden, Marchwood, Totton and the New Forest. Family-run and Waterside-based since 2013, DBS checked and fully insured, with a 12-month guarantee on every part fitted. Gearbox failure is the single most common uPVC door fault I am called out for round here. Call 07453 327708, day or night, and I will get you sorted.
Bugsy Edwards
Founder, Keywise 24hr Locksmiths. Family-run on the SO45 Waterside.
This advice comes from a working locksmith, not a content writer. Bugsy answers his own phone, and was named the Hampshire Police and Crime Commissioner's 2024 Community Volunteer of the Year. 5.0 from 295 Google reviews.
Call 07453 327708