What we do
We replace the euro-profile cylinder on residential doors across North & Central London and Hertfordshire with the Avocet ABS 3-star Kitemarked cylinder. £149 flat — cylinder, fitting and three keys included. That is the entire service.
When something goes wrong out of hours — locked out, a snapped cylinder, a door left insecure after a break-in — we run a 24/7 emergency callout, quoted per job before we set off. We don’t cut car keys, open safes, fit smart locks or carry alternate cylinder brands. If your job isn’t ours, we’ll say so and point you elsewhere.
Who we work with
Three customer types make up almost all our work:
- Landlords changing locks between tenancies — old keys made worthless, insurance-grade cylinder fitted, itemised invoice for the property file.
- Tenants who’ve just moved into a new flat or house and want the previous occupant’s keys to no longer open their door.
- Homeowners upgrading a generic euro cylinder to a 3-star ABS — usually because the door looks vulnerable, the insurer asked, or you’ve read about lock-snap attacks.
Why this approach
The lock-change market in London is broken in a specific way. Too many callouts arrive unquoted, charge labour by the hour, and fit whatever cylinder is on the van — often one that only meets the standard when paired with a security handle the door doesn’t have.
The fix is not better marketing. It’s a different product, a different process, and a different kind of conversation. We quote in advance, we fit a cylinder that meets the standard on its own, and we tell you exactly what you’ve received in writing.
Who we are
kianlocks is the trading name of KIANLOCKS LTD, registered in England and Wales, company number 11163189, registered office 3rd Floor, 86-90 Paul Street, London EC2A 4NE. The company has traded as kianlocks since 2020. Our work is covered by public liability insurance; the certificate is available on request. Locksmithing is not a licensed trade in the UK, so we think you should ask any locksmith for these things — see how to choose a locksmith in London.
What we promise
- £149 flat for planned bookings. Mon–Sat 9am–6pm. No callout fee, no per-minute labour, no upsell ladder.
- 24/7 emergency available — quoted per job. Out-of-hours or urgent work is priced separately so the standard fee stays standard. Email with EMERGENCY in the subject or call us.
- One product. Avocet ABS 3-star Kitemarked cylinder, every job. We do not fit anything else.
- Email-led booking. Reply within 2 hours during office hours.
- Written documentation of every fitting — for your insurer, landlord file, or freeholder.