Lock Change in Dartford
New locks fitted same day across Dartford. BS3621-rated, insurance-approved.
15-20 min response in Dartford
- Same-day service
- BS3621 locks
- No callout fee
Locksmith Coverage in Dartford (DA)
Our Dartford locksmith engineers cover the full DA postcode, working across Gravesend, Rochester, Bexleyheath, Swanley, Greenhithe, Erith and Sidcup. Commuter town with rapid new-build expansion, which means our engineers are familiar with everything from interwar semis and modern new-builds.
DA postcode districts
The main DA postcode area covers districts including:
- DA1
- DA2
- DA3
- DA4
- DA5
- DA6
- DA7
- DA8
- DA9
Outer postcodes within the same DA area also covered. Just call and tell us your postcode — we'll confirm coverage and dispatch the closest engineer.
15-20 min response across DA
We have multiple engineers based across the DA postcode area, not just in central Dartford. Whichever district you're in, the closest available engineer is dispatched, so the 15-20 minute average holds across the full coverage area.
- Gravesend 15-20 min
- Rochester 15-20 min
- Bexleyheath 15-20 min
- Other DA towns 15-20 min
Same response time day or night, including bank holidays. Times can extend slightly during peak traffic.
Common reasons people in Dartford call us
- Locked out of home or rental. Lost keys, broken keys, or door slammed shut. Non-destructive entry within 20 minutes typical.
- uPVC door won't lock. Multipoint mechanism failed — common in interwar semis and modern new-builds after years of use. Same-day repairs.
- Lock change after moving in. Standard practice in Dartford rentals and new home purchases. BS3621 insurance-rated locks available on the van.
- Burglary or attempted break-in. Emergency boarding-up overnight, full lock replacement next morning. We work directly with insurers.
- Snapped or stuck key. Extracted without damaging the cylinder, usually under 15 minutes on site.
Other areas in the DA region we cover
- Gravesend
- Rochester
- Bexleyheath
- Swanley
- Greenhithe
- Erith
- Sidcup
Transparent Pricing
All prices confirmed before work begins. Our locksmiths carry a wide range of locks and parts for immediate service.
Locked Out / Gain Entry
Emergency lockout service — fast response
Lock Repair
Fix sticking, jamming, or faulty locks
uPVC Door Lock Adjustment
Mechanism adjustment & alignment
Lock Change (Supply & Fit)
New lock supply and professional installation
Standard Deadbolt & Cylinders
Quality standard security locks
British Standard Deadbolt & Cylinders
Insurance-approved high-security locks (BS3621)
Gearbox Mechanism / Full Multi-point
Complete uPVC mechanism replacement
Car Lockout
Vehicle unlocking — price depends on vehicle type
Assessment Fee / Cancellation Fee
Assessment fee charged if you cancel after the locksmith arrives on site.
- ✓ No hidden charges
- ✓ No call-out fee
- ✓ Fixed price guarantee after quote
Other Services in Dartford
All services available 24/7. Same phone number, same engineers.
Frequently Asked Questions — Dartford
-
How much is a lock change in Dartford?
A standard cylinder swap is £89 to £129. A full BS3621 mortice replacement is £139 to £189, including the lock and labour.
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How long does it take?
Like-for-like cylinder swap takes 20 to 30 minutes. A new mortice with hole adjustment can be an hour.
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Should I change locks after losing keys?
If keys are gone rather than mislaid, swapping the cylinder is the safer option. You keep the lock body and just renew the keys, which keeps the cost down.
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What lock suits a Dartford new-build front door?
Most DA new-builds take a TS007 3-star anti-snap euro cylinder in a multipoint mechanism. Older interwar semis often need a 5-lever BS3621 mortice on the back door.
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Do you fit anti-snap cylinders for uPVC?
Yes. TS007 3-star or SS312 Diamond cylinders are the standard upgrade and what most insurers expect.
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Can new locks match my existing keys?
Two or more new locks can be keyed alike at the time of fitting. Matching to an existing third-party key isn't usually possible.
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Is there a guarantee?
12 months on workmanship as standard. Manufacturer warranties on cylinders run from 1 to 10 years.
Have a different question? Just call.
0800 048 5569 Tap to callWhat Our Customers Say
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Two new euro cylinders fitted after losing a fob. Both keyed alike, anti-bump and anti-snap. Sensible price for the spec.
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Came home from Gravesend to a forced front door. They came within 50 minutes, secured the property overnight, returned in the morning to fit anti-snap cylinders.
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Key snapped in the lock at midnight. Engineer was here in 23 minutes, fished it out without drilling, charged £75.
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Locked out at 3am after my shift. Phoned, heard someone within 25 minutes, was inside before I'd finished my coffee. £85.
Our Recent Work
A snapshot of jobs handled across the UK.
