BS3621 Mortice · Euro Cylinders · Multi-Point · Smart Locks
Professional lock changes across Borough SE1. 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 handles lock changes throughout Borough SE1. From Victorian terraces near Borough Market to modern flats on Borough High Street and converted warehouses off Southwark Street — we supply and fit all lock types on the same visit.
Borough's mix of period properties and new-build developments means we handle a wide range of lock systems every week. Whether you're upgrading for insurance or replacing after a tenancy change, we carry stock to complete the job immediately. Also looking for a locksmith in Borough? We cover that too.
Lock Change Services
Insurance-approved BS3621 5-lever mortice deadlocks and sashlocks fitted in Borough. Meets most home insurance policy requirements.
Learn moreUpgrade to anti-snap, anti-pick euro cylinders in Borough. Fitted to uPVC and composite doors, replacing standard vulnerable cylinders.
Learn moreFull multi-point locking system replacements for uPVC and composite doors in Borough. Gearboxes, lock cases and cylinders supplied and fitted.
Learn moreKeypad and smart lock systems installed in Borough. Control access remotely, issue temporary codes, and integrate with home security systems.
Learn moreMaster key systems for HMOs, flats and commercial properties in Borough. One key for common areas, individual keys per unit.
Learn moreChanged tenants or lost keys? Re-keying in Borough makes old keys redundant while keeping your existing locks — faster and cheaper than full replacement.
Learn moreOther Services
Nearby Areas
FAQ
We change BS3621 mortice locks, euro cylinders, multi-point lock systems, rim latches and smart locks in Borough SE1. We work on all door types including timber, uPVC and composite.
Borough is central South London — we aim to arrive within 20–30 minutes. Lock changes are completed on the same visit, no need to arrange a second appointment.
Yes — re-keying or full lock changes after a tenancy is one of our most common jobs in Borough. We can change cylinders so old keys no longer work, or fit entirely new locks, whichever suits your situation.
Same-day service · BS3621 approved locks · No call-out fee