Smoke Alarm Installation Cost
Published installation estimates range from £25–£75 for a battery alarm to £150–£250 for a wired alarm and £175–£300 for an app-enabled alarm. Electricians who do smoke alarm installations
£25–£300
Per-alarm range
Aug 2026
Last updated
What each option costs
| Type | Typical cost | Notes |
|---|---|---|
| Battery-powered alarmPer alarm | £25–£75 | Per alarm |
| Wired alarmPer alarm | £150–£250 | Per alarm |
| App-enabled alarmPer alarm | £175–£300 | Per alarm |
What would yours cost?
Those are the usual ranges. Tell us what you need done and we'll tell you the price for your home.
on your first booking
What affects the price
- Alarm type and count
- Existing wiring or a new circuit
- Ceiling access and interlinking
- Property layout and required alarm coverage
What's included
- The alarm and installation for the stated type
- Testing and setup for the agreed scope
Good to know
Before you book, read how to check an electrician is qualified.
How to pay less
- Agree the alarm grade and power type before quoting
- Install several alarms together
- Confirm batteries, interlinking, certification, and making good
Questions people ask
What needs doing?
Tell us what you need done. We'll tell you the price, then find a local electrician to do the job.