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Lock Replacement in London

Whether you have lost a set of keys, taken over a new flat, ended a tenancy or split with someone who still has a key, replacing the lock is quick and straightforward. Our engineers carry stock, so it is done on the first visit.

We fit hardware that meets what your insurer asks for: TS007 3-star anti-snap euro cylinders for uPVC and composite doors, BS3621 five-lever mortice deadlocks for timber doors, and British Standard nightlatches for communal and front entrances.

Which lock does your insurer expect?

Most UK home insurance policies specify a BS3621 lock on final exit timber doors, and increasingly a TS007 3-star or Sold Secure Diamond cylinder on uPVC and composite doors. If you are not sure what you have, send us a photo of the lock edge on WhatsApp and we will tell you what it is before we come out.

Snap-resistance matters in London

Lock snapping is still one of the most common forced-entry methods on uPVC doors in London. A standard cylinder can be snapped in seconds; a 3-star anti-snap cylinder sacrifices its outer section and keeps the cam protected. It is one of the simplest and most effective security upgrades available.

Keyed alike, so you carry one key

If you are juggling a front door, a back door, a side gate and a garage, we can supply cylinders keyed to one common key. Handy for landlords and HMO owners too, where a master key opens every flat door while each tenant key only opens their own.

FAQs

Lock Replacement — your questions

How long does it take to change a lock?

A euro cylinder swap takes minutes. A British Standard mortice deadlock takes longer because the lock body sits inside the door. Either way our engineers carry the hardware with them, so it is done on the first visit rather than booked in for a second.

Can you change a lock without the key?

Yes. We can remove and replace a lock you have no key for, in most cases without damaging the door.

Should I change the locks when I move in?

Yes. You have no way of knowing how many keys are in circulation from previous tenants, owners, builders, cleaners or agents. It is the single most sensible thing you can do for peace of mind on day one.

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

Lock Replacement 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 Repairs

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

Lock Repairs →

uPVC Door Repairs

Multipoint gearboxes, hooks, handles and alignment on uPVC and composite doors — repaired, not ripped out.

uPVC Door 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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