Lock Change in Harrow
New locks fitted and worn locks replaced same day by Harrow lock fitting specialists — house doors, patio doors and uPVC. BS3621-rated, insurance-approved.
Our engineers work on interwar semis and Victorian terraces across the HA postcode area every week, so they arrive with the right parts for your door.
- Same-day lock replacement
- BS3621 locks
- No callout fee
Locksmith Coverage in Harrow (HA)
Our Harrow locksmith engineers cover the full HA postcode, working across Wembley, Pinner, Northwood, Stanmore, Edgware, Kenton, Greenford and Eastcote. North-west London suburb with large rental sector, which means our engineers are familiar with everything from interwar semis and victorian terraces.
All 10 HA postcode districts covered
We cover the full HA postcode area, every district from start to end:
- HA0
- HA1
- HA2
- HA3
- HA4
- HA5
- HA6
- HA7
- HA8
- HA9
Just call and tell us your postcode. Whether you're in HA0 central or HA9 outer area, we dispatch the closest engineer.
15-20 min response across HA
We have multiple engineers based across the HA postcode area, not just in central Harrow. Whichever district you're in, the closest available engineer is dispatched, so the 15-20 minute average holds across the full coverage area.
- Wembley 15-20 min
- Pinner 15-20 min
- Northwood 15-20 min
- Other HA towns 15-20 min
Same response time day or night, including bank holidays. Times can extend slightly during peak traffic.
Common reasons people in Harrow 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 victorian terraces after years of use. Same-day repairs.
- Lock change after moving in. Standard practice in Harrow 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 HA region we cover
- Wembley
- Pinner
- Northwood
- Stanmore
- Edgware
- Kenton
- Greenford
- Eastcote
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 Lock Repair
uPVC door lock & handle repairs
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 Harrow
All services available 24/7. Same phone number, same engineers.
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Locksmith Near Me in Harrow
The closest available engineer, dispatched to you -
General Locksmith in Harrow
Every lock service from one local team -
Emergency Locksmith in Harrow
24/7 response for break-ins and urgent lock failures -
Locked Out Help in Harrow
Locked yourself out? Non-destructive entry -
uPVC Door Repair in Harrow
Multipoint mechanism and window lock repair
Frequently Asked Questions — Harrow
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When is a lock change the right call?
After moving in, after a break-in, or any time keys are unaccounted for. Common request between tenancies in Harrow's busy rental sector.
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How much does it cost?
£89 to £189 fitted depending on type. Anti-snap cylinders sit at the lower end, BS3621 mortice deadlocks at the upper end.
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Can all my doors share one key?
Yes. Key-alike cylinders are inexpensive when fitted at the same time and remove the hassle of multiple keys.
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Will my home insurance stay valid?
Yes. We fit BS3621 on wooden doors and Sold Secure SS312 Diamond on uPVC as standard, both insurer-approved.
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How long does the appointment take?
30 minutes for a euro cylinder swap, around an hour for a five-lever mortice on an older Edwardian or Victorian door.
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Do you handle bulk lock changes for landlords?
Yes. We work with letting agents across HA postcodes on tenant changeover lock swaps, with bulk pricing on multiple properties.
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Spare keys included?
Three keys come with each new cylinder. Extra copies around £6 each.
What Our Customers Say
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Burglary on a rented flat in HA1, lock punched and frame splintered. Boarded same evening, full repair next morning, anti-snap cylinder and reinforced strike. Insurer paid out without quibble.
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Insurer flagged my front door cylinder as not anti-snap. Sold Secure Diamond fitted in 30 minutes for £109.
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Snapped key in the front door cylinder. Out within 22 minutes, extracted without drilling. £55. Sorted.
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Engineer arrived 22 minutes after the call. Picked the front door of an interwar semi without a mark on the paint.
Our Recent Work
A snapshot of jobs handled across the UK.
