24/7 · PL1 · DBS checked engineers
Plymouth Lock Installation
Lock Installation across Plymouth and the surrounding Devon area, 24 hours a day, every day of the year — average response 25 minutes. Free call-out with every job — fixed price agreed before any work starts.
Other locksmith services in Plymouth need lock changes, repairs, upgrades or commercial help instead?
All services in Plymouth →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
Plymouth doors × lock families — fit reference
The four door types we see most across Plymouth and the PL1 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 Plymouth.
- 35 / 35 70 mm symmetrical
- Flush both sides. Common on Plymouth 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 Plymouth installs
On post-war estate properties where the door was replaced within the last decade, the pricing is straightforward: cylinder grade and multipoint count from the matrix, with no prep contingency. Where the original timber frame is still in place, settlement and door-drop assessment is included in the on-arrival check before the price is finalised. 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 Plymouth — FAQ
Common questions about lock installation in Plymouth.
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 Plymouth. 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.
Do I need BS3621 on a new installation?
For external doors on Plymouth homes with standard insurance — yes, almost certainly. BS3621 is the minimum most UK home insurers specify on final-exit wooden doors. We fit BS3621 as standard and issue written paperwork confirming the standard for your insurance file.
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.
We've just moved into a new-build in Plymouth — do the locks already meet insurance standards?
Not always. Many Plymouth new-builds come with entry-level euro cylinders on UPVC or composite doors that lack the TS007 3-star anti-snap rating, and sometimes a mortice case that predates BS3621 on the side door. We survey the whole property, identify any hardware gaps, and upgrade to compliant standards on the same visit — with a compliance pack for your insurer.
Also nearby
Areas near Plymouth
we also cover
Our engineers don't just cover Plymouth — we serve the surrounding towns and neighbourhoods too. If you're just outside Plymouth, we can still reach you fast.
- Saltash 4.2 mi
- Torquay 24.5 mi
- Exeter 37.8 mi
- Tavistock 14.5 mi
- Ivybridge 10.2 mi
Ready when you are
Need lock installation in Plymouth now?
24/7 dispatch across Plymouth and the PL1 area. Fixed quote before work starts. Free call-out with every completed job.