Cost guide
Lock change prices in the UK
An anti-snap cylinder costs from £137 fitted on the MLA's 2026 list, and Checkatrade's 2026 average is £150, against £105 to £175 for a standard euro cylinder (MLA, MyJobQuote). A BS 3621 mortice deadlock costs £100 to £205 fitted across the MLA, Checkatrade, MyJobQuote and Bark guides. MyJobQuote adds £50 to £100 for out-of-hours work.
Typical prices
Ranges, not quotes. A price depends on the lock, the door and the hour.
| Work | Typical UK price |
|---|---|
| Euro cylinder, fitted (MLA, MyJobQuote) | £105 to £175 |
| Anti-snap cylinder, fitted (MLA from, Checkatrade average) | £137 to £150 |
| BS 3621 mortice deadlock, fitted (MLA, Checkatrade, MyJobQuote, Bark) | £100 to £205 |
| Locksmith's hourly rate, daytime (MLA, Checkatrade, Bark) | £65 to £85 |
| Out-of-hours surcharge (MyJobQuote) | £50 to £100 on top |
Figures from the MLA's 2026 price list, MyJobQuote (14 September 2026), Checkatrade (2026) and Bark (2025), checked 2 October 2026; they are ranges for one lock, not quotes.
What moves the price
- The lock. A euro cylinder swap is the quickest job; a mortice deadlock can mean cutting or adjusting the door.
- The standard. Anti-snap cylinders (TS 007 3 star or SS 312 Diamond) and BS 3621 deadlocks cost more than basic locks, and insurers often ask for them.
- How many locks. Front, back and side doors keyed alike are usually quoted together.
- The door. A dropped uPVC door or a split timber frame needs putting right before a new lock will work properly.
- Timing. MyJobQuote adds £50 to £100 for out-of-hours work.
Who quotes for it
1052 of the 1,224 locksmiths listed on this site take on lock change.
Where they are: Cardiff (14), Edinburgh (13), Sheffield (13), Southampton (13), Aberdeen (12).
Questions about lock change
How much does it cost to change a lock?
£105 to £175 for a euro cylinder, fitted, in the MLA's and MyJobQuote's 2026 guides, and £100 to £205 for a BS 3621 mortice deadlock across the MLA, Checkatrade, MyJobQuote and Bark. Several locks done in one visit are usually quoted together.
Is an anti-snap cylinder worth the extra?
On a uPVC or composite door, usually. The MLA's 2026 list starts anti-snap cylinders at £137 fitted and Checkatrade averages £150, against £105 to £175 for a standard cylinder. Insurers often ask for TS 007 3 star or SS 312 Diamond.
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