BS3621 Mortice · Euro Cylinders · Multi-Point · Smart Locks
Professional lock changes across City of London EC2. Upgrade to BS3621 insurance-approved locks, replace faulty cylinders, or fit a full new multi-point system — same day, no call-out fee.
Stay calm · we're on the way
A few things that genuinely help — and a few that make it worse. Read these while we head to you.
Try a back door, ground-floor window, neighbour with a spare key, or your landlord/agent. Saves you a call-out fee if you find a way in.
Kicking, drilling, or wedging cards turns a £85 lockout into a £300+ replacement. Step back and let us pick it open cleanly.
Driving licence, council tax bill or tenancy agreement showing the address. We always check before opening — for everyone's safety.
Rogue traders quote £49 then bill £450 once they're done. We give you a fixed price over the phone before we arrive — same rate day or night.
Wait somewhere well-lit (a neighbour, local cafe, your car). Drop us a pin via WhatsApp so we know exactly where you are.
Call 101 for non-emergency police first — you'll need a crime reference number for insurance. Then call us. We can board up tonight and replace glass tomorrow.
Local Lock Changes
BLD Locksmith & Window Repairs carries out lock changes across the City of London EC2. From BS3621 lock upgrades on period offices near Moorgate to anti-snap euro cylinders on commercial premises off Bishopsgate or full multi-point lock changes on residential properties around London Wall — we serve both commercial and residential clients.
The City of London's mix of historic buildings, modern offices and an increasing residential population means we handle a wide range of lock types. We carry stock for commercial-grade and residential systems and complete all changes same day. Also need a locksmith in the City of London? We cover that too.
Lock Change Services
Insurance-approved BS3621 5-lever mortice deadlocks and sashlocks fitted in City of London. Meets most home insurance policy requirements.
Learn moreUpgrade to anti-snap, anti-pick euro cylinders in City of London. Fitted to uPVC and composite doors, replacing standard vulnerable cylinders.
Learn moreFull multi-point locking system replacements for uPVC and composite doors in City of London. Gearboxes, lock cases and cylinders supplied and fitted.
Learn moreKeypad and smart lock systems installed in City of London. Control access remotely, issue temporary codes, and integrate with home security systems.
Learn moreMaster key systems for HMOs, flats and commercial properties in City of London. One key for common areas, individual keys per unit.
Learn moreChanged tenants or lost keys? Re-keying in City of London makes old keys redundant while keeping your existing locks — faster and cheaper than full replacement.
Learn moreOther Services
Nearby Areas
FAQ
Yes — we change locks on both commercial and residential properties in the City of London EC2. This includes office entrance locks, high-security mortice locks, euro cylinders, and master key systems for multi-tenancy buildings.
The City of London is very accessible for us — we aim to arrive within 20–35 minutes. We carry stock for commercial and residential lock systems and complete the change on the same visit.
Yes — master key systems are popular in the City of London for offices and multi-occupancy buildings. We design and install systems where one master key opens all doors while individual key holders only access their own area.
Same-day service · BS3621 approved locks · No call-out fee