Lock Change in Harrow From £88
New locks supplied and fitted on the same visit. Anti-snap cylinders and BS3621 deadlocks for insurance.
- Lock change from £88Free quote on the phone
- Lock and fitting includedBS3621 and anti-snap locks
- Typically 15–20 minAverage time to your door
- No callout feeIf you go ahead · 24/7, same price at night
Over 60 employed engineers, all fully insured. 12-month guarantee on parts we fit.
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Euro cylinder from £88 -
BS3621 deadlock from £109 -
Nightlatch from £88
Lock changes we fit in Harrow
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Lock change
from£88New euro cylinder supplied and fitted, anti-snap if you want it. The usual fix after lost keys or a house move.
Anti-snap cylinders -
BS3621 deadlock
from£109Insurance-approved mortice deadlock fitted, so your door meets what most home insurers ask for.
BS3621 approved -
Nightlatch replacement
from£88Sticking or worn Yale-type latch replaced, the classic lock on older timber front doors.
Timber doors -
Multipoint mechanism
from£89Full multipoint strip replaced when hooks or rollers have failed, matched to your door.
uPVC and composite -
After a break-in
from£88Damaged locks replaced and the door made secure the same day, with a receipt for your insurer.
Burglary repair -
Lock repair
from£39Stiff, jammed or broken lock repaired where it can be, replaced only where it cannot.
Repair first
Prices in Harrow
- Your jobLock change, supply and fitThe new lock and fitting it from£88
- Replacement lock supplied (part only) from£25
- Locked out, gain entry from£39
- Lock repair from£39
- uPVC lock repair from£69
- uPVC window lock or handle repair from£69
- uPVC door adjustment from£79
- Gearbox or full multipoint mechanism from£89
- BS3621 deadlock and cylinders from£109
Prices plus VAT where applicable.
How we price
- Free quote on the phone. The engineer checks the lock and confirms the price with you before starting any work.
- No callout fee if you go ahead. If you decide not to go ahead once the engineer has arrived, a £49 assessment fee covers the visit.
- Same price 24/7, including nights, weekends and bank holidays.
- 12-month guarantee on parts we fit.
- Fully insured engineers, employed by us.
Tell us the door, the lock and your postcode. We give you a quote straight away.
Which lock do you need?
Interwar semis across Harrow often still have their original locks and keys that have passed through several owners.
uPVC and composite doors use a euro cylinder. We fit anti-snap cylinders, which resist the snapping attack burglars use on cheap cylinders. Timber front doors usually have a nightlatch and a mortice deadlock; for insurance that deadlock should be BS3621.
Most lock changes in Harrow take 30 to 45 minutes. Common reasons: moving into a new home, lost or stolen keys, a tenant moving out, or a lock that has become stiff and worn.
Locksmiths who know Harrow
Interwar Metroland semis often keep original timber front doors and old cylinder locks next to later uPVC porch or back doors, so one house can need two quite different repairs.
Homes and doors we see most
- Interwar Metroland semis around Rayners Lane, Pinner and Eastcote
- Victorian terraces and villas in Harrow on the Hill and Wealdstone
- New-build flats around Wembley Park and Harrow town centre
Places we work near
- Canons ParkPublic park in Edgware on the grounds of the former Canons estate
- St Lawrence WhitchurchBaroque church in Little Stanmore associated with Handel
- Harrow Arts CentreArts centre in Hatch End with a theatre and studios
- Moor ParkEighteenth-century mansion and golf club near Northwood
- Harrow SchoolIndependent boarding school founded in 1572 on Harrow on the Hill
- St Mary's Church, Harrow on the HillHilltop parish church whose spire is a landmark across north-west London
From phone call to a working door in five steps
Call and describe the problem
Tell us about the door, the lock and your postcode in Harrow.
Get a free quote
We give you a quote on the phone for what you describe. No callout fee if you go ahead.
Nearest engineer drives to you
An engineer is typically with you in 15 to 20 minutes, and within 30 minutes at most.
Price confirmed, then the work
The engineer checks the lock and confirms the price with you before starting. Nothing is done without your OK.
Pay when the job is done
Card, cash or bank transfer, with a written receipt.
Answered 24 hours a day, 7 days a week.
HA postcodes and the towns around Harrow
Typical homes: interwar semis and Victorian terraces. One number covers all of them.
- HA0North Wembley, Alperton, Sudbury
- HA1Harrow on the Hill, Northwick Park, Sudbury Hill
- HA2South Harrow, West Harrow, Headstone, Rayners Lane
- HA3Kenton, Wealdstone, Harrow Weald, Queensbury
- HA4Ruislip
- HA5Pinner, Hatch End, Eastcote
- HA6Northwood, Northwood Hills, Moor Park
- HA7Stanmore
All 10 HA postcodes we cover
- HA0
- HA1
- HA2
- HA3
- HA4
- HA5
- HA6
- HA7
- HA8
- HA9
Towns nearby
- Wembley
- Pinner
- Northwood
- Stanmore
- Edgware
- Kenton
- Greenford
- Eastcote
Lock change in Harrow: common questions
How much is a lock change in Harrow?
From £88 supplied and fitted for a standard euro cylinder. BS3621 mortice deadlocks start from £109. The price the engineer confirms includes the lock and the fitting.
Do I need anti-snap locks?
On a uPVC or composite door, we recommend them. Snapping is the most common way in through those doors, and anti-snap cylinders are built to resist it.
How do I pay?
When the job is finished. Card, cash or bank transfer, and you get a written receipt you can use for an insurance claim.
How does pricing work?
Tell us the door, the lock and what has happened, and we give you a free quote on the phone. When the engineer arrives, they check the lock and confirm the final price with you before starting any work. Nothing is done without your agreement. A £49 assessment fee applies only if you cancel after the engineer has arrived.
Do you charge a callout fee?
No callout fee when you go ahead with the job. If you decide not to go ahead after the engineer has arrived, a £49 assessment fee covers the visit. Otherwise you pay for the job itself in Harrow, at the price the engineer confirms with you before starting.
Do nights and weekends cost more?
No. The price is the same at 3am on a Sunday as it is at midday on a Tuesday, bank holidays included.
I live in a flat near Wembley Stadium. Can you reach me on an event day?
Yes, we cover Wembley around the clock. Roads near the stadium can be slow on event days, so give us your address when you call and we will confirm the arrival time.
Can you change the locks on a 1930s semi without replacing the whole door?
In most cases, yes. The engineer checks the door and fits a new cylinder or mortice lock to suit it, and confirms the price before starting. If the door itself is badly worn, the engineer will tell you.
Need a locksmith in Harrow now?
Call, tell us what has happened and get a free quote. The nearest engineer is sent as soon as you say yes.
Over 60 employed engineers, all fully insured. 12-month guarantee on parts we fit.
From £88 · Locks from £25 · No callout fee if you go ahead · 24/7
