Smoke alarm installation in Bristol

Mains-powered and interlinked: why it matters

A single battery alarm in the hall is heard in the hall. Put a closed bedroom door and a flight of stairs between it and a sleeping family, and it can go unheard until the smoke reaches the landing. Interlinked alarms remove that gap: when one detects a fire, every alarm in the house sounds at once.

Mains power removes the other common failure, the flat or missing battery. Every alarm we fit has a sealed backup battery that keeps it working through a power cut and never needs changing.

Hard-wired or radio-interlinked

A hard-wired interlink runs a cable between the alarms, which is the tidiest choice when ceilings are open for a rewire, an extension or a loft conversion. Radio-interlinked mains alarms each take power from a lighting circuit close by and link to each other wirelessly, so there are no new cables between floors and far less disruption in a finished, decorated house.

Which alarm goes where

Optical smoke alarms go in the hall and on each landing, a heat alarm goes in the kitchen, and carbon monoxide alarms go in rooms with a fixed combustion appliance. Bigger homes, loft conversions and shared houses may need more detectors in the rooms where a fire is likeliest to start, such as the living room.

Ten years, then replace

Smoke and heat alarms do not last for ever: most are made for about ten years, and the replace-by date is printed on the unit. When we test or replace alarms, we check those dates and tell you when the rest are due.

What the rules say

Three sets of rules cover most Bristol homes. The law for a standard let is a minimum; new homes, loft conversions and licensed HMOs ask for more.

Sources: Smoke and carbon monoxide alarm guidance for landlords and tenants, GOV.UK; Approved Document B (fire safety), GOV.UK; Fire safety standards for licensable HMOs, Bristol City Council.

Smoke alarm prices in Bristol

A new system is priced after a quick look, because the number of alarms and the route for power depend on the layout of the house. Alarm work can often share a visit with an EICR or other jobs, and our guide to interlinked smoke alarms explains the options in more depth.

Smoke alarms in Bristol homes

Two layouts come up again and again. The first is the knocked-through ground floor, common in the terraces of Bedminster, Southville and Bishopston, where the kitchen now opens onto the hall or the stairs. A smoke alarm there would sound every time someone cooks, so a heat alarm in the kitchen, interlinked with the smoke alarms, is the answer.

The second is the loft conversion. A new storey means a longer escape route down through the house, and building control will expect interlinked, mains-powered detection on every level. We fit it with the rest of the loft's electrics, or on its own if your builder has everything else in hand.

How we price: no surprises

Every job is different, so we look before we quote.

Estimates are always free, and there's never any obligation.

Frequently asked questions