uPVC repairs

Door locks & mechanisms

Handle won’t lift, key won’t turn or the door won’t lock. We repair gearboxes, multipoint locks and cylinders.

Book a repair

Typical visit

Most lock repairs are done in one visit if we can identify the part from your photos first. An uncommon lock may need a second visit once the part arrives.

AWhat you notice

  • You have to lean on the door or force the handle up to lock it
  • The handle has gone floppy, or doesn’t spring back level
  • The key is stiff, only turns part way, or won’t turn at all
  • The key turns round and round but nothing locks
  • The door won’t open even though it’s unlocked
  • The handle lifts but the hooks or bolts don’t come out of the door edge

BLikely causes

  • The door has dropped, so the hooks and rollers no longer line up with the keeps on the frame
  • The gearbox in the middle of the lock has worn out or broken inside, often after years of forcing the handle
  • A snapped part in the multipoint lock, such as a hook, a roller or a connecting rod
  • A worn euro cylinder, or an older one that was never anti-snap
  • A broken spring in the handle, which leaves it drooping

CHow we fix it

  • We work out whether the fault is alignment, the gearbox, the lock strip or the cylinder before we replace anything
  • We fit a new gearbox or a full multipoint lock, matched to the make and size of the one in your door
  • Cylinders are upgraded to anti-snap, rated TS 007 3-star or SS 312 Diamond, and sized to suit your door
  • We adjust the keeps and hinges so the new lock works with light pressure on the handle
  • Worn or broken door handles replaced at the same visit
Before we visit

Worth knowing

Don’t force a stiff handle. It’s the most common way gearboxes break, and the real cause is often a dropped door.

Twice a year, spray the hooks, rollers and keeps with a silicone or PTFE lubricant.

Send a photo of the door edge where the metal lock strip is. The maker’s name is often stamped on the faceplate, which helps us bring the right part.

To measure a euro cylinder, measure from the centre fixing screw to each end. A 35/45 cylinder is 35 mm on one side and 45 mm on the other.

Questions

Common questions

Can you just replace the gearbox?

Often, yes. If the hooks, rollers and rods are in good order, a new centre gearbox fixes the problem and costs less than a full multipoint lock.

What cylinder should I have?

An anti-snap euro cylinder rated TS 007 3-star or SS 312 Diamond. Some insurers ask for one of these, so check your policy wording.

Why does my key turn but the door doesn’t lock?

Usually the cam on the back of the cylinder or the gearbox inside the door has failed. A cylinder is a quick swap. A failed gearbox needs replacing as well. We check which it is before ordering parts.

Other repairs

We also fix

See all repairs
Misted double glazingFog or droplets trapped between the panes mean the seal has failed. We replace the glass unit and keep your frame. Handles & hingesWindows that drop, slam or won’t stay open, and handles that are loose or snapped. Hinges and handles replaced. Dropped & misaligned doorsA door that scrapes, catches or needs a shove to lock has usually dropped. We lift it, re-pack it and adjust it. Draughts, leaks & sealsCold air round the edges, whistling in the wind, or water on the cill after rain. We fix gaskets, drainage and sealant.

Free survey · written quote · no obligation

Send a photo, get a price.

A photo of the problem and your postcode on WhatsApp is the quickest way to get a repair booked.

Build your quote Or call07411 496356