HMO fire safety upgrades across Cardiff

In short: HMO fire safety upgrades bring a shared house up to the fire standard its size and layout need. In Cardiff we survey first, price each item separately and hand over the certificates and photos a council asks for.

Nation: Wales
Pricing region: Wales
Postcode areas: CF
Main towns: Cardiff, Whitchurch

What do HMO fire safety upgrades in Cardiff involve?

Fire doors with closers and seals
Fire-resisting linings to the escape route
Fire stopping of service holes
Works priced against your fire risk assessment
Emergency lighting where needed
Interlinked smoke and heat detection

Which rules apply in Cardiff?

Council HMO standards and the fire risk assessment set detection, fire doors and escape routes.
Landlords must register with Rent Smart Wales, and those who manage their own lets need a Rent Smart Wales licence.
Building regulations cover structural work, partitions, drainage, fire-resisting construction and electrics; confirm with building control whether the conversion is a material change of use.
Councils such as Cardiff and Swansea run additional licensing for HMOs outside the mandatory scheme.

Cardiff Council: local HMO schemes

Additional licensing	In force in part of the council area Cathays: 1 Feb 2023 to 1 Feb 2028. Plasnewydd had a scheme from 1 Jan 2021; check with Cardiff Council whether it has been renewed.
Selective licensing	No scheme found

Schemes change. Check the council’s current pages for the exact address in Cardiff before you buy or start work. Source: Cardiff Council HMO licensing page, checked 2026-10-31.

How much do HMO fire safety upgrades cost in Cardiff?

Regional adjustment for Wales. Planning budgets: see our prices page.
Item	UK typical	Local guide	Per
Interlinked mains alarm system (Grade D type), small HMO (our estimate from installer guides)	£800 – £2,000	£750 – £1,900	house
Panel alarm system (Grade A type), larger HMO	£1,750 – £4,500	£1,650 – £4,250	house
FD30S fire door leaf into an existing frame, with seals, closer and hinges, fitted	£300 – £600	£280 – £560	door
New FD30S fire doorset with frame, fitted	£600 – £1,300	£560 – £1,200	door
Protected route upgrades: fire-resisting linings, fire stopping, lighting (three-storey house, our estimate)	£2,000 – £6,000	£1,900 – £5,650	house

Typical time on site: 3–10 working days. For a figure for your house, try the guide-price tool.

HMO fire safety upgrades by town in Cardiff

Questions about HMO fire safety upgrades in Cardiff

Who writes the fire risk assessment?

You arrange it, through a competent assessor. We price and carry out the works it recommends and give you the evidence.

What fire safety does an HMO legally need?

The law asks for the house to be reasonably safe, with suitable fire precautions for its size and layout. The detail usually comes from a fire risk assessment and council guidance, so the right answer for a three-storey seven-bed house is very different from a two-storey three-bed one.

Do you carry out HMO fire safety upgrades across Cardiff?

Yes, across the whole of Cardiff, including Cardiff, Whitchurch.

Who licenses HMOs in Cardiff?

Cardiff council licenses HMOs in its area. Landlords must also register with Rent Smart Wales.