24/7 · BN1 · DBS checked engineers
Lock Installation in Brighton, East Sussex
Our Brighton engineers handle lock installation across Brighton from the city centre to outer districts. Available 24 hours a day, every day of the year; 22-minute average arrival. No surprises on price.
Other locksmith services in Brighton need lock changes, repairs, upgrades or commercial help instead?
All services in Brighton →Common failure modes on southern terrace locks concentrate around two issues: moisture ingress on coastal properties causing lever stack corrosion, and timber movement in lime-mortar-framed Bath properties causing the keep position to shift as the lime mortar compresses under decades of door impact load. Both failure modes are predictable and are noted in the handover documentation with a recommended inspection interval.
On the day
Fitting day in Brighton — the five-step sequence
New locks go in against a defined sequence, not ad-hoc. Here's the order each of our engineers works through on a typical Brighton installation — the same on a terraced front door as on a new-build UPVC back door.
- 01
Confirm parts and measurements
Before any tools come out we walk through the hardware that's been ordered for your Brighton property — cylinder sizes, gearbox type where relevant, strike plate dimensions, and any fire or insurance ratings. If something's a size off, we reschedule rather than force the fit.
- 02
Prep door and frame
Existing furniture is removed, the door checked for square and for any swelling or drop on the hinges. On older BN1 stock the frame often needs a chisel adjustment at the keep; on new-build doors it's usually a clean lift and drop. Anything structural that's out of scope is flagged before we go further.
- 03
Fit the hardware
Cylinder, gearbox, multipoint strip, or mortice case goes in against the manufacturer's template. Fixings match the frame material — steel screws into softwood, self-tappers into aluminium, no-slip fixings into composite. Nothing is over-torqued; we assess all retained hardware positions simultaneously before any fixing is committed to final torque.
- 04
Align and test
Every operation is tested with the door both open and closed — key in, key out, handle lifted, deadlock thrown, thumb-turn from inside. On a multipoint we test each hook and shoot-bolt independently before signing off. Anything that binds gets adjusted there and then, not "later".
- 05
Handover and keys
Keys are counted against the job card and handed over with a one-page written summary: what was fitted, the Regency Georgian original hardware spec noted, serial numbers where relevant, and a seven-day follow-up window. On insurance-graded installs the compliance paperwork lands by email the same day.
What we measure
Four measurements that decide the fit in Brighton
Full retained furniture stile zone map: measure all retained hardware positions and dimensions. Overlay the required case and backplate positions. Available stile zone for new hardware is the stile area not occupied by retained furniture fixings plus their minimum clearances.
-
Door thickness
44 / 54 / 70 mm
Determines whether the standard cylinder length fits flush or needs a long-body variant.
-
Backset
45 / 60 / 70 mm
Distance from the edge of the door to the centre of the cylinder. Common on UK doors but not universal.
-
Euro cylinder length
30/30 → 45/55
Measured separately from each side of the door. Must sit flush — too proud and the cylinder is vulnerable to snapping.
-
Frame material
Timber · Composite · Aluminium
Brighton stock varies widely. Frame material dictates fixings, strike plate type, and the correct spec for the Regency Georgian original hardware.
- A Bath or Brighton door with a full retained furniture set — bell pull, knocker, letter plate, and escutcheon — leaves a tighter stile zone for new lock positions than any other configuration.
- Compatibility check for new case with full retained furniture requires all items to be measured in position before the case position is drawn.
- Zone conflict resolution with full retained furniture: the case position may need to be lower than standard mid-rail height to clear all retained pieces.
Pricing — what shifts it
What affects a Brighton lock installation price
Cardiff Victorian terraces include properties with slate-hung facades andWelsh lime mortar pointing that resists drilling differently from standardbrick. Where mortar and stone contact is in the frame rebate, the fittingapproach is adjusted. Additional frame work, where needed, is priced andconfirmed at survey — not added at the end of the job. From £59.
- 01
New-fit vs like-for-like replacement
Fitting into an existing cut-out is cheaper than routing a new one. Period doors in Brighton often need a fresh cut; UPVC is almost always like-for-like.
- 02
Hardware tier
Standard cylinder sits at the base price; TS007 3-star anti-snap, BS3621 mortice, and restricted keyways each add to the parts cost.
- 03
Door condition
A square door on tight hinges fits fast. Drop at the hinge side, swelling, or a warped strike plate adds time — we flag this during the measurement call, not at the end.
- 04
Number of doors on the same visit
Fitting front, back, and garage side-door in one appointment is meaningfully cheaper than three separate visits across Brighton.
Lock Installation in Brighton — FAQ
Common questions about lock installation in Brighton.
Can you install a lock on a brand-new door?
Bath Georgian and Regency properties have listed-building designations thatrestrict aperture modification and hardware selection. Before any lock isspecified, the building's consent status is confirmed at survey. Complianthardware within the existing cut-out geometry is the only option wheremodification is restricted. Yes — this is one of our most common installation jobs in Brighton. 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 Brighton 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 Brighton — do the locks already meet insurance standards?
Not always. Many Brighton 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 Brighton
we also cover
Our engineers don't just cover Brighton — we serve the surrounding towns and neighbourhoods too. If you're just outside Brighton, we can still reach you fast.
- Hove 2.1 mi
- Worthing 10.8 mi
- Lewes 8.2 mi
- Eastbourne 22.4 mi
- Crawley 22.1 mi
Ready when you are
Need lock installation in Brighton now?
24/7 dispatch across Brighton and the BN1 area. Fixed quote before work starts. Free call-out with every completed job.