Ops team answering now · 24/7 UK No call-out charge. Ever. 5.0 from 23,878 reviews Own a LockFit franchise →

uPVC door & window lock specialists.

Handle stiff, lock clicking, door won’t lock? uPVC multipoint mechanisms are our speciality. Don’t pull the mechanism out yourself: call a LockFit locksmith and we’ll usually have a new one working within an hour of arriving.

New mechanism within the hourAnti-snap upgrades12-month guarantee
A key in a uPVC front doorMultipoint specialists

Signs your multipoint lock is failing

Many manufacturers make uPVC door locks, but they all work on the same principle. The multipoint lock isn’t unique to uPVC: it is also fitted to timber composite doors. When it fails in the locked position, it causes bigger problems, but there are usually warning signs first.

  • The handle is hard to operate, or needs extra pressure at the end of the lift.
  • The lock is stiff, or makes a clicking sound.
  • The handle is wobbly, loose, or spins completely.

Sometimes it is simple: the door alignment has been knocked. Sometimes a moving part inside the mechanism has seized or broken, or the fault is in the euro cylinder. Either way, we diagnose it on the visit.

How a multipoint lock works

Multipoint locks work the same way whatever the number or type of locking points: rollers, hooks, bolts or a mix. On most, lifting the handle throws the locking points, and turning the key in the cylinder then locks the whole mechanism in place.

Locked out with a uPVC door?

We provide a 24-hour service and specialise in uPVC mechanisms. If the mechanism has failed, we open the door and replace it, usually within an hour of arriving.

Upgrades while we’re there

  • Swap your cylinder for an anti-snap, anti-bump, anti-drill version.
  • Fit more secure anti-snap handles.
  • Add sash jammers: internal bolts that add another layer of security.
  • Fit push locks to sliding patio doors so they can’t be lifted off the runners.
Reviews

Five stars, every day.

Live, independent reviews collected by Trustist after every LockFit job.

5.0
from 23,878 customer reviews

Dave is an absolute legend. My upvc door gearbox had failed and he responded that night to come the next day to get it fixed. Super friendly, very honest and fair and charged a really fair price. Best bit, no hidden charges or sneaky add ons.

Bethan W19 Oct 2026

I got locked inside my house this morning and I panicked. I rang Matt from Lockfit and what a saviour. He arrived within around 35 minutes and within 20 minutes my lock was mended and all at a good price.

Jenny H19 Oct 2026

Definitely recommend! We called early hours in the morning (2am) and only had a short wait of 10 minutes. Very professional and helpful.

Chloe G17 Oct 2026

We got broken into and Alex and his team was amazing. Came quickly, and boarded door up. Gave us a bit of peace of mind in amongst the stress and chaos.

Rainbow P18 Oct 2026

Arrived promptly on a Saturday afternoon and diagnosed and fixed the issue quickly. A complex job with a complete door gear system failure and lock replacement whilst the door was still locked. Would use again.

Lee D18 Oct 2026

Dan and Sam handled an incredibly difficult situation with exceptional professionalism, care, and sensitivity. They did much more than just replace a lock; they went above and beyond.

Erling M19 Oct 2026

Broke my lock on the way out to work, had no idea what to do. Called Jay, he talked me through what went wrong and my available options. Sorted the problem within the hour with a 12 month guarantee on the work.

Alex M19 Oct 2026

Really impressed with the service received, Jacob came out within the hour to fix a broken lock. Great service and great price, would recommend.

Jo S18 Oct 2026

Gary came out at short notice, was extremely helpful, provided an excellent service and would use again any day. Highly recommended.

Customer in RG2217 Oct 2026

Despite our head office changing the plans at every turn, these guys stuck with us and overcame every issue and left us something better than what we asked. Can’t fault them.

Benjamin E19 Oct 2026

Very efficient work for a good price. I would recommend Jay’s services and plan to use them again in the future.

Kieran M19 Oct 2026

Fantastic service, Robert was out within the hour.

Sonny K19 Oct 2026

Couldn’t have asked for a better service, the whole process was incredibly easy and great value. Thank you!

Emily T17 Oct 2026

The best. Thank you for coming so quickly and getting the job done.

Deborah O17 Oct 2026
FAQ

Questions, answered

Straight answers on cost, response and who turns up. If yours is not here, call and ask a locksmith.

My uPVC door won’t lock. What’s wrong?

Usually alignment (the door has dropped, so the hooks miss the keeps) or a worn gearbox in the mechanism. Alignment is often an adjustment; a failed gearbox is replaced on the visit.

Can you get me in if the mechanism has failed locked?

Yes. This is one of our most common call-outs. We open the door, replace the mechanism and leave it locking properly.

24 hours · 365 days

Locked out right now?

Don't fill in a form. Call, and the operations team gives you an arrival time on the call.

0800 210 1010