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Lock Installation Service in Croydon
Lock Installation across Croydon and surrounding areas, day or night, 365 days a year — average response 20 minutes. Free call-out with every job — fixed price agreed before any work starts.
Other locksmith services in Croydon need lock changes, repairs, upgrades or commercial help instead?
All services in Croydon →On post-war estate properties the key matrix decision is which column matches the door. UPVC (common for 80s–90s replacements) uses the UPVC/composite column and the cylinder backset guide. Original 1950s–70s timber or softwood frames use the timber column with the door-condition check before ordering.
Fit reference
Croydon doors × lock families — fit reference
The four door types we see most across Croydon and the CR0 area, mapped to the lock families we fit against each. Cells marked with ⬥ meet BS3621 or an insurance-grade equivalent.
| Door | Primary lock | Secondary / supplementary | Add-on security |
|---|---|---|---|
| Timber front door | ⬥ 5-lever mortice deadlock | Night-latch (supplementary) | ⬥ Rim deadlock (belt-and-braces) |
| UPVC / composite front | ⬥ Euro cylinder — TS007 3-star | Multipoint gearbox with hook | Sash jammers / shoot-bolts |
| New-build composite | ⬥ EN1303 grade 6 euro cylinder | PAS 24 compliant multipoint | Anti-snap + anti-bump as standard |
| Aluminium back/side | Adams Rite 1850 / 4710 | Mortice deadlock with cylinder | Hook-bolt for sliding variants |
⬥ BS3621 or equivalent (TS007 3-star, EN1303 grade 6)
Euro cylinder sizing
Sizing — three references + how to measure your own
Getting the cylinder length right matters: too proud and it's vulnerable to snapping; too short and the key won't fully engage. Three common sizes, plus a four-step self-measure so we can quote without a site visit on straightforward jobs in Croydon.
- 35 / 35 70 mm symmetrical
- Flush both sides. Common on Croydon new-build composites where the frame uses a matched profile.
- 40 / 45 85 mm offset
- More common on UPVC front doors with a thicker external profile. The longer end faces outside.
- 45 / 55 100 mm (rarer)
- Used where the door is thicker than standard — some older composite doors and certain fire-rated frames.
Compliance
BS3621 & insurance — the short reference for Croydon installs
On post-war estate housing the two pricing variables are door condition and hardware tier. Settlement and door drop add prep time to timber installations; UPVC replacements are quoted on cylinder specification and point count alone. Both are confirmed as a fixed total on arrival before work begins. From £59.
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Timber doors
BS3621 5-lever mortice deadlock
The original BS3621 reference. Kitemarked body, anti-drill, anti-pick, minimum 1000 key differs. Fitted to most insured timber front and back doors.
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UPVC / composite
TS007 3-star euro cylinder + PAS 24 multipoint
"Equivalent" for euro-cylinder doors. 3-star cylinder carries anti-snap, anti-bump, anti-drill. Paired with a PAS 24 door/frame assembly it satisfies most standard clauses.
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High-risk / restricted
EN1303 grade 6 — restricted keyway
Top of the range for cylinders. Keys can only be cut against a signed card. Specified where the risk assessment calls for a registered-key system or multi-property estate control.
Lock Installation in Croydon — FAQ
Common questions about lock installation in Croydon.
Can you install a lock on a brand-new door?
The most practical installation question on a post-war estate property is whether the door drop is enough to need prep before fitting. The matrix tells you which hardware tier to use; the door-condition guide below it tells you whether the frame needs addressing first. Both questions need answering before the installation price is final. Yes — this is one of our most common installation jobs in Croydon. Carpenters and joiners often hang the door and leave lock fitting to specialists. We measure the rebate, chisel for a BS3621 mortice case, fit the strike plate, and test through a full key cycle. Finished work looks factory-fit.
Can a landlord instruct new locks on a refurb before letting in Croydon?
Yes — full external lock install before a new tenancy is a regular instruction. We survey during the refurb, fit BS3621 / TS007 3-star throughout, and issue the compliance record addressed to the property so it sits in the property file through every future tenancy. Direct billing to the landlord or agent.
Can you keyed-alike multiple new locks?
Yes — if you want one key to open your front and rear doors, we supply keyed-alike cylinders on the most common profiles. Arrange at the survey stage so we bring matching parts. This works cleanly on UPVC euro cylinders and on certain mortice profiles.
Do you install locks on gates and outbuildings?
Yes — weather-rated padlocks, BS-grade hasps, garden gate locks, and shed/garage door hardware are all regular installation work across Croydon. We match the lock to the exposure (weatherproofing matters outdoors) and fit on the same visit.
Also nearby
Areas near Croydon
we also cover
Our engineers don't just cover Croydon — we serve the surrounding towns and neighbourhoods too. If you're just outside Croydon, we can still reach you fast.
- Bromley 5.2 mi
- Sutton 4.8 mi
- Merton 5.1 mi
- Lambeth 8.2 mi
- Redhill 10.5 mi
Ready when you are
Need lock installation in Croydon now?
24/7 dispatch across Croydon and the CR0 area. Fixed quote before work starts. Free call-out with every completed job.