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uPVC & Composite Door Repairs in London

uPVC doors do not usually fail at the cylinder — they fail at the multipoint mechanism buried in the door edge. The symptoms are always the same: the handle goes floppy or rock solid, the hooks stop throwing, and the door either will not lock or will not open.

You do not need a new door. In almost every case the gearbox or a strip of the mechanism is replaced, the door is realigned, and it works better than it has in years.

The two symptoms that mean gearbox

Either the handle lifts with no resistance and nothing happens, or the handle will not lift at all. Both point at the centre case. If the door is currently shut and locked with a sheared gearbox, it is an emergency job — the door has to be opened before the mechanism can be replaced.

Getting the right part matters

There are dozens of mechanism brands on London doors — Fuhr, Winkhaus, GU, Yale, Millenco, Maco, Avocet, Lockmaster — and the backset, PZ spacing and centres all have to match. Our engineers measure on site and carry the common patterns, so most doors are fixed on the first visit rather than left boarded while a part is ordered.

Fix the alignment or it will happen again

A gearbox that shears usually shears because the door dropped and the user has been forcing the handle for months. Replacing the mechanism without correcting hinge alignment and keep positions just books the same repair again next year. We adjust as part of the job.

FAQs

uPVC Door Repairs — your questions

My uPVC handle has gone floppy — what is wrong?

Nearly always a sheared multipoint gearbox. The handle is no longer connected to the mechanism that throws the hooks. It is a common, repairable fault and does not mean you need a new door.

The door is locked shut and will not open. Can you help?

Yes, that is an emergency call-out. We open the door without destroying it wherever possible, then replace the failed mechanism and realign the door in the same visit.

Do I need a whole new uPVC door?

Very rarely. Unless the panel or frame itself is damaged, replacing the mechanism restores full security and leaves you with the door you already have.

Locked out? We are already on the road.

Call now and speak to an engineer. We aim to be with you within 30 minutes, 24 hours a day.

Coverage

uPVC Door Repairs across London

We deliver this service in every area we cover. Choose your area for local response times and postcodes.

South London 3 areas covered

East London 2 areas covered

Related

Other services

Emergency Locksmith

Locked out, snapped key, jammed door — a vetted engineer on the road within minutes, 24 hours a day.

Emergency Locksmith →

Lock Replacement

New locks supplied and fitted the same visit — BS3621 mortices, anti-snap cylinders and insurance-approved hardware.

Lock Replacement →

Lock Repairs

Sticking, stiff or spinning locks fixed rather than binned — repair first where the mechanism is worth saving.

Lock Repairs →

Emergency Door Opening

Non-destructive entry to homes, flats and offices — picked, bypassed or decoded rather than drilled.

Emergency Door Opening →

Broken Key Extraction

Snapped key removed from the cylinder and a new key cut — usually without replacing the lock at all.

Broken Key Extraction →

Burglary Repairs

Break-in aftercare: doors, frames and locks made secure the same day, with paperwork for your insurer.

Burglary Repairs →
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