24/7 · SL1 · DBS checked engineers
Slough Lock Installation
Lock Installation throughout Slough and nearby Reading, day and 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 Slough need lock changes, repairs, upgrades or commercial help instead?
All services in Slough →Council-built and post-war estate properties span a wide age range — some have had no door changes since the 1960s, others have been through multiple replacement cycles. The matrix handles both: original timber frames use the timber column and the door-condition check; any UPVC or composite replacement uses the UPVC/composite column with the standard backset guide.
Fit reference
Slough doors × lock families — fit reference
The four door types we see most across Slough and the SL1 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 Slough.
- 35 / 35 70 mm symmetrical
- Flush both sides. Common on Slough 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 Slough installs
Mixed-age door stock on post-war properties means the quote covers two distinct cost structures depending on which door is being worked on. Original timber frames are priced with door-prep contingency built in; UPVC and composite replacements are priced on hardware grade and access-point count without a prep allowance unless a measurement issue is found. 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 Slough — FAQ
Common questions about lock installation in Slough.
Can you install a lock on a brand-new door?
Post-war housing generates mixed-door installation queries because the same property can have a 1960s timber internal door alongside an 80s UPVC front door alongside a modern composite back door. Each door is treated as a separate column entry in the matrix — there is no single-spec answer that covers all three. Yes — this is one of our most common installation jobs in Slough. 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 Slough?
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 Slough. We match the lock to the exposure (weatherproofing matters outdoors) and fit on the same visit.
Also nearby
Areas near Slough
we also cover
Our engineers don't just cover Slough — we serve the surrounding towns and neighbourhoods too. If you're just outside Slough, we can still reach you fast.
- Reading 22 mi
- Windsor 4 mi
- Uxbridge 6 mi
Ready when you are
Need lock installation in Slough now?
24/7 dispatch across Slough and the SL1 area. Fixed quote before work starts. Free call-out with every completed job.