Change Locks on Your New House in South London
Moving into a new home in South London? Before you unpack a single box, change the locks. Previous owners, estate agents, and contractors may all have copies of your keys. We fit BS3621 British Standard locks same-day — fixed price, no call-out fee.
The First Thing Every New Homeowner in South London Should Do
Moving into a new home is one of life's great milestones — but it comes with a security risk most people overlook. When you take the keys to your new South London property, you are not the only person who has them. Previous owners, tenants, estate agents, contractors, and letting agents may all have copies that were never returned.
Our lock change service is built specifically for this situation. We cover every borough across South London — from Brixton and Clapham to Croydon, Greenwich, and Bromley — and we can be with you on moving day. Every lock we fit meets BS3621 British Standard, which satisfies your home insurance requirements from day one.
If you're locked out, need uPVC door repairs, or want a full security assessment, we cover all of it. But if you've just moved in, a lock change is the single most important call you can make. Fixed price. No call-out fee. 30-minute response across South London.
- BS3621 locks — insurance approved
- Same-day service — available now
- Fixed price agreed before we start
- No call-out fee — ever
- DBS checked, fully insured
- Level 3 City & Guilds qualified
- 12-month parts & labour guarantee
- 155 verified 5-star Google reviews
Why Changing the Locks Isn't Optional — It's Essential
Most people move in and never think about this. Here's why the statistics say you should do it on moving day.
You Don't Know Who Has a Key
Previous owners, tenants, estate agents, cleaners, contractors, and neighbours may all have copies of your keys that were never returned. You have zero visibility over this — the only fix is a new lock.
32% still have keys to old homesYour Insurance May Require It
Most UK home insurers require BS3621-compliant locks. If someone enters with an old key — no forced entry — your insurer may reject the claim entirely. New locks protect your home and validate your policy.
BS3621:2004 required by most insurersNew Builds Are Not Secure Either
Developers use master keys during construction shared with all site staff, subcontractors, and estate agents. There's no formal record of who had them or when. Changing locks on completion day severs that chain.
Developer master keys = unknown accessRented Properties Carry Highest Risk
South London rental properties change tenants frequently. Landlords are not required to change locks between tenancies. A single lock may have passed through 10+ tenants — all of whom may have had keys cut.
No legal requirement to change between tenantsFirst Year Is Your Most Vulnerable
Research shows you are nearly twice as likely to be burgled in your first 12 months in a new home. New occupants are distracted and rarely update their security. A lock change closes this window.
4.6% vs 2.5% average burglary rateSame-Day Service Across South London
Call us now for a fixed price in 60 seconds. We can be at your new South London home within 30 minutes — on moving day or any day.
020 8050 2017How Our South London Lock Change Works
We've made it as easy as possible — because on moving day, you have enough to think about.
Call With Your Address
Tell us your South London address and the locks you need changed. We give you a fixed price in under 60 seconds — agreed before we arrive, no surprises.
We Arrive Within 30 Minutes
Our locksmiths are stationed across South London. Every van is fully stocked with BS3621 British Standard locks — we never need to make a parts run.
New Locks Fitted and Tested
We remove old locks, fit new certified ones, test every door from both sides, and hand you your new keys. Door alignment checked at no extra charge.
What Locks We Change on Your New South London Home
We carry all common lock types and only fit BS3621 British Standard or TS007 3-star certified models — so your home insurance is valid from day one.
Euro Cylinder Locks (uPVC Doors)
The most common lock on modern South London properties. Standard cylinders are vulnerable to snapping. We replace them with anti-snap, anti-pick, anti-drill Ultion or Avocet ABS cylinders.
TS007 3-Star Rated5-Lever Mortice Deadlocks (Wooden Doors)
Required on wooden doors by most insurers. BS3621-certified 5-lever mortice locks have over 1,000 key combinations and hardened steel bolts. We upgrade 2 or 3-lever locks that don't meet standard.
BS3621 CertifiedYale Night Latches (Rim Cylinders)
Classic Yale locks on traditional South London front doors can be bypassed in seconds. We replace standard cylinders with double-locking high-security versions that meet insurance requirements.
Insurance ApprovedMulti-Point Locking Systems
Modern uPVC and composite doors lock at 3, 5, or 7 points along the frame. We service and upgrade worn multi-point mechanisms — a misaligned system is a significant security vulnerability.
uPVC & CompositeWindow Locks
The most overlooked upgrade. Any accessible ground-floor window without a key-operated lock is a vulnerability — and many insurers specifically require them. We fit on sash windows, casements, and patio doors.
Often Insurer-RequiredNot Sure What Lock You Have?
We'll identify your lock type and confirm if it meets your insurer's requirements — free on every visit. Call us and we'll talk you through it in 60 seconds.
020 8050 2017Lock Change Service Across All of South London
Our locksmiths are stationed across South London — not dispatched from a central hub. Whether you're moving into a terrace in Balham, a flat in Greenwich, or a new build in Croydon — we'll be with you fast.
South London's Trusted Lock Change Specialists
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BS3621 British Standard Locks Only
Every lock we fit meets or exceeds BS3621:2004 and TS007 3-star standards. Your home insurance is valid from the moment we leave.
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30-Minute Response Across South London
Our locksmiths are stationed across South London — not dispatched from a central hub. Same-day service, including moving day.
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Fixed Price — No Call-Out Fee
We quote a fixed price in 60 seconds before we arrive. No call-out charge. No surprises when the job is done.
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Level 3 City & Guilds Qualified
Fully qualified, DBS checked, and insured. Every locksmith carries ID and operates under a strict code of professional conduct.
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12-Month Parts & Labour Guarantee
Every lock we fit comes with a full 12-month guarantee on parts and labour. If anything goes wrong, we fix it at no cost.
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155 Verified 5-Star Google Reviews
Real South London homeowners. Real reviews. Every job completed to the same standard — whether it’s one lock or a whole property.
“Arrived within 25 minutes, changed all three locks on our new house in Clapham. Showed us exactly why the old locks weren’t insurance-compliant. Would not hesitate to recommend.”
Lock Change Prices — Fixed Before We Start
No hidden fees. No call-out charge. Price confirmed in 60 seconds over the phone and agreed before we arrive.
Single Door Lock
One entry point — front door, back door, or side door.
- Euro cylinder or Yale rim
- BS3621 certified lock
- 20–40 min job
- 12-month guarantee
Full Home Lock Change
Front door, back door, and one additional entry point.
- 3 entry points covered
- All BS3621 certified
- Free door alignment check
- 1–2 hour job
- 12-month guarantee
Window Lock Package
Key-operated locks on ground-floor windows and patio doors.
- Sash, casement, patio
- Insurance-approved
- Add to any lock change job
- 12-month guarantee
3 Things to Do When You Move Into a New South London Home
Beyond the lock change, here's what every new South London homeowner should check in the first 48 hours.
Check Your Lock Grades — Not Just the Locks
Most people assume existing locks are insurance-compliant. They often aren't. Older South London properties frequently have 2 or 3-lever mortice locks that fail the BS3621 minimum. Ask us to assess every entry point — we'll tell you exactly what passes and what needs upgrading.
Don't Forget Window Locks — They're in Your Policy
Most burglaries happen through unlocked or easily forced windows, not the front door. Check your home insurance small print — a surprising number of policies specifically require key-operated locks on accessible ground-floor windows. We fit them same-day alongside any lock change job.