BS3621 Mortice · Euro Cylinders · Multi-Point · Smart Locks
Professional lock changes across Southwark 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 carries out lock changes across Southwark SE1. From BS3621 mortice lock upgrades on period properties along Southwark Street to euro cylinder changes on flats near Union Street, or full multi-point lock replacements on modern buildings off Borough Road — all completed same day.
Southwark's central South London location means we cover a huge variety of property types — from heritage buildings to new riverside towers. We carry all common lock types in the van and complete every job on the same visit. Also need a locksmith in Southwark? We cover that too.
Lock Change Services
Insurance-approved BS3621 5-lever mortice deadlocks and sashlocks fitted in Southwark. Meets most home insurance policy requirements.
Learn moreUpgrade to anti-snap, anti-pick euro cylinders in Southwark. Fitted to uPVC and composite doors, replacing standard vulnerable cylinders.
Learn moreFull multi-point locking system replacements for uPVC and composite doors in Southwark. Gearboxes, lock cases and cylinders supplied and fitted.
Learn moreKeypad and smart lock systems installed in Southwark. Control access remotely, issue temporary codes, and integrate with home security systems.
Learn moreMaster key systems for HMOs, flats and commercial properties in Southwark. One key for common areas, individual keys per unit.
Learn moreChanged tenants or lost keys? Re-keying in Southwark 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 and smart locks in Southwark SE1. We work on all property types from period houses to modern residential towers.
Southwark is one of our core areas — we typically arrive within 15–25 minutes. All locks are supplied and fitted on the same visit, no follow-up required.
Yes — we work on all types of housing in Southwark including local authority and housing association properties, subject to tenant having permission to change the locks. We recommend confirming with your landlord or housing officer before we attend.
Same-day service · BS3621 approved locks · No call-out fee