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Fire safety works

Fire alarm and detection systems

Mains-wired interlinked alarms and panel systems, designed, installed and certificated.

  • Free site visit and measured survey
  • Built to the council’s HMO standards
  • Certificates and photos at handover
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Ceiling-mounted interlinked smoke detector and emergency light in an HMO hallway
In short: An HMO fire alarm is an interlinked system of smoke and heat detectors that sounds everywhere in the house when one detector triggers. Smaller HMOs usually have mains-wired interlinked alarms with battery back-up; larger ones often need a panel-based system. The grade and coverage follow the fire risk assessment.

What do fire alarm and detection systems include?

  • Survey and system design to the fire risk assessment
  • Mains-wired interlinked smoke and heat detectors
  • Panel systems for larger HMOs
  • Detection in rooms, kitchens and escape routes as specified
  • Carbon monoxide alarms where needed
  • Commissioning and certificate
  • User instructions and a logbook
  • Maintenance and testing visits

When do landlords need it?

  • No alarm, or battery-only alarms
  • A licence condition or inspection finding
  • Adding rooms or converting to an HMO

What rules apply in each UK nation?

The law differs between England, Wales, Scotland and Northern Ireland, and councils publish their own HMO standards on top. These are the points that usually matter for this work.

England

  • Fire precautions follow a risk assessment; the LACORS Housing – Fire Safety guide (2008) is guidance, not law, but many councils base their standards on it.
  • Mandatory HMO licence for 5 or more people in 2 or more households (since October 2018); councils can add additional licensing for smaller HMOs.
  • Electrical installations must be inspected and tested at least every 5 years; remedial work is due within 28 days, or sooner if the report says so.
  • Smoke alarms on every storey with living accommodation and CO alarms by fixed combustion appliances (other than gas cookers) are required by law.

All HMO rules for England

Wales

  • Fitness for human habitation rules require mains-powered, interlinked smoke alarms on every storey and CO alarms where there is a gas, oil or solid-fuel appliance.
  • Mandatory licence for HMOs with 3 or more storeys and 5 or more people in 2 or more households; Wales did not adopt England’s 2018 change.
  • An electrical inspection and test at least every 5 years, with the report given to the contract-holder within 14 days.
  • Council HMO standards and the fire risk assessment set detection, fire doors and escape routes.

All HMO rules for Wales

Scotland

  • The tolerable standard requires interlinked smoke alarms in the main living room and circulation spaces and a heat alarm in the kitchen; licensed HMOs must meet the council’s higher standard.
  • Every HMO needs a council licence: 3 or more people who are not all from one or two families, sharing basic amenities. Licences last up to 3 years.
  • An EICR before the first let and at least every 5 years, with C1 and C2 items fixed, PAT testing of supplied appliances and RCD protection.
  • Councils set HMO fire standards through licence conditions, often including emergency lighting in larger HMOs.

All HMO rules for Scotland

Northern Ireland

  • The NIFRS HMO Fire Safety Guide (July 2026) usually expects Grade D1 interlinked detection in smaller shared houses and a Grade A system with more than 6 occupants or over 200 m².
  • A licence is needed where 3 or more people forming more than two households live as their main home and pay rent; the NI HMO Unit at Belfast City Council licenses for every council.
  • HMO licence conditions require a satisfactory EICR at least every 5 years.
  • Doors on protected routes are typically FD30 or FD30S, self-closing on three hinges; emergency lighting is required in HMOs of 4 or more storeys.

All HMO rules for Northern Ireland

How much do fire alarm and detection systems cost?

UK typical budget ranges. See local pages for regional guides.
ItemUK typicalPer
Interlinked mains alarm system (Grade D type), small HMO (our estimate from installer guides)£800 – £2,000house
Panel alarm system (Grade A type), larger HMO£1,750 – £4,500house
Emergency light fitting, installed (our estimate)£150 – £350fitting

Typical time on site: 1–4 working days. Your fixed price follows a site visit; use the guide-price tool for a figure for your house.

How the job runs

  1. Free site visit and measured survey.
  2. Itemised written quote and programme.
  3. Works with one point of contact and photo updates.
  4. Handover with certificates, drawings and photos.

Questions about fire alarm and detection systems

What grade of fire alarm does an HMO need?

There is no single answer in law. Guidance links the grade and coverage to the size of the house and the risk, and your fire risk assessment and council will set it. We install to that specification.

Are battery smoke alarms enough?

For most HMOs, no. Interlinked mains-powered detection is usually expected so everyone is warned wherever the fire starts.

How often should the alarm be tested?

Guidance usually asks for regular user tests and periodic servicing by a competent person. We can set up a maintenance schedule.

Do you give a certificate?

Yes: design, installation and commissioning certificates for the system we fit.

Related services

Where we work

Choose a nation and area for local rules, postcodes and regional prices.

England

Wales

Scotland

Northern Ireland

Planning HMO works?

Free site visit, then a fixed written quote itemised against your council’s standards.

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