Window Lock Repair & Replacement in Harrow
A window that won’t lock, a handle that spins or snaps, a stiff mechanism you have to fight. Window locks fail quietly until the day they don’t. I do window lock repair and replacement across Harrow and the surrounding areas, and most are a mechanism or handle swap, not a whole new window. Labour from £89, no call-out fee.
A faulty window lock is one of the common lock problems in Harrow homes I fix week in, week out.
Window lock repair: common faults I fix
- Stiff or broken window handles
- Failed espag (the long locking strip down the frame)
- Gearboxes that won’t throw the locking points
- Misaligned sashes that won’t seal
- Seized or worn locks on uPVC, aluminium and timber windows
- Missing or broken keys for locking handles
Why it matters for your security
Ground-floor and accessible windows are a favourite entry point. A window that doesn’t lock properly is an open invitation, worth fixing before it’s exploited. While I’m there I can flag any that need a proper locking upgrade (see additional security).
Every window type
I work on uPVC, aluminium and timber windows, casement and sash. Whether it’s a worn handle, a failed multipoint strip or a lock that’s seized solid, I’ll repair it where I can and replace only what actually needs replacing.
Posted on Google 
Rk
Trustindex verifies that the original source of the review is Google. Elderly Parents locked themselves out, called Andrew who gave a price was able to attend within 15 mins and problem solved. Extremely efficient service and no hassle
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Anna Donovan
Trustindex verifies that the original source of the review is Google. Another ‘rescue’ from Andrew. This time our main front door lock needed repair. Andrew was prompt, courteous and solved the problem quickly at a very reasonable price.
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klaudia csoka
Trustindex verifies that the original source of the review is Google. Very grateful for Andrew’s trustworthy service! I called him today within 2 hours he was at my door ready to do the job. He installed a new lock and done the mortising within 15mins. Great service ⭐️⭐️⭐️⭐️⭐️
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thembuk7
Trustindex verifies that the original source of the review is Google. Very quick to resolve our problem and change our locks 10/10 would recommend for anyone needing a locksmith
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sunita miles
Trustindex verifies that the original source of the review is Google. Andrew was very efficient and did a great job. I would recommend him as he is very professional.
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Tina Patel
Trustindex verifies that the original source of the review is Google. Superman… Andrew is just a life saver. Used his services in 2 separate occasions and he is well priced and very prompt. He arrived the same day we called … diagnosed the problem and offered us a solution which he done straight away. If you are in need of a locksmith .. save his number highly recommend his services. Really nice guy too👌🏽
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Umer
Trustindex verifies that the original source of the review is Google. Amazing experience! Andrew was super friendly and helpful. He came as quickly as I requested, and opened the door in under 5 minutes. Fantastic! Really recommend!
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Gautam Batra
Trustindex verifies that the original source of the review is Google. Really please with 2 jobs. One was fixing an old patio door lock and the second was installation of a Yale Keyless Connected Smart lock. Timely arrival, professional work ethic, highly recommend.
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Vinayak Karnataki
Trustindex verifies that the original source of the review is Google. I was locked out of the house. Andrew responded quickly on WhatsApp, he gave a final all inclusive quote price for the work, came in 15 mins and opened the door in no time.
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Jon da Silva
Trustindex verifies that the original source of the review is Google. Andrew replaced our front door lock. Did it quickly, explained everything in detail about re-ordering keys, etc. Would highly recommend.
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Independent locksmith, Harrow-based
I work independently and cover Harrow and the surrounding areas: Watford, Hillingdon, Barnet, Brent, Ealing, Three Rivers and Hertsmere. Got a window that won’t lock? Call me for a fixed price. See my prices.