24/7 domestic locksmith

07347 492822

Service

New Home Lock Change

Move-in day lock change — peace of mind from day one

Answered 24/7 by the locksmith, not a call centre. Honest ETA confirmed on the call.

  • Fixed quote agreed before dispatch
  • Honest ETA on the call
  • DBS-checked engineers
  • 12-month guarantee
24/7 residential help
Non-destructive entry first
Fixed written quote
Mobile locksmith

About this service

You've just exchanged contracts, picked up the keys and walked through the front door for the first time. Nobody can tell you how many copies of those keys are out there — previous owners, estate agents, cleaners, tradespeople, ex-partners. A new-home lock change on day one is the single highest-value security upgrade most people will ever make, and our specialists complete a typical 3-door whole-home lock change in 90 minutes for a fixed all-in price.

What's included

  • Whole-home lock change on move-in day — front, back and side doors
  • Insurance-approved BS3621 and TS007 3-star locks fitted as standard
  • Free security audit of windows, garage and patio doors
  • Keyed-alike option — one key for every external door
  • 12-month guarantee on parts and labour

Our process

Step 01

Audit

We walk every external door and window with you, top to bottom.

Step 02

Quote

One fixed all-in price — no surprises, no per-cylinder padding.

Step 03

Fit

Typical 3-door change completed in 90 minutes from arrival.

Step 04

Hand over

New keys, written guarantee and a security report for your insurer.

Where we cover

We provide new home locks across West London, Berkshire and Buckinghamshire, including:

Get a fixed quote

Send your details, then attach clear photos on WhatsApp for a fixed written quote.

By submitting you consent to us contacting you about your enquiry. We never share your details.

Common questions

Should I change every lock when I move in?

Yes — it's the only way to be certain no spare keys are still circulating. Most insurers actively recommend it.

How much does a whole-home lock change cost?

Send a photo for a fixed written quote.

Can you do it on the day I move in?

Yes — same-day move-in lock changes are our most-booked service. Book the slot before completion.

Can I have one key for every door?

Yes. Keyed-alike cylinders mean one key opens front, back and side doors — no key juggling.

Let's secure your home

Speak to First Line Locksmiths

Send a photo for a fixed written quote. An honest ETA and the agreed scope are confirmed before dispatch.

Answered 24/7 by the locksmith, not a call centre. Honest ETA confirmed on the call.

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