BS 5839-6

Domestic & HMO

Mains-powered, interlinked smoke and heat alarms for homes, and Grade A systems for HMOs, with the certificates landlords need.

Homes

For most homes, a Grade D1 or D2 system is the right fit: mains-powered smoke and heat alarms with a backup battery, all linked together so they sound at once. We fit them neatly and tidily, to BS 5839-6.

HMO & landlord requirements

Houses in Multiple Occupation need to meet BS 5839-6 (often a Grade A system for larger licensed HMOs) plus any local licensing conditions, which can go further than the standard. We install, maintain and certify systems to the requirements your council will accept.

  • Licensed HMO compliance
  • Article 4 direction areas
  • Selective licensing schemes
  • Grade A LD1/LD2 systems
  • Fire door inspection & replacement

Grades at a glance

Grade D1 / D2: mains-powered, interlinked alarms with a built-in (D1) or replaceable (D2) backup battery. The usual choice for owner-occupied homes and smaller rentals.

Grade A: a full panel-based system with detectors, sounders and manual call points. Common in larger licensed HMOs.

LD1 / LD2 / LD3: how much of the property is covered. LD1 covers escape routes and every room where a fire could start, LD2 covers escape routes plus higher-risk rooms, and LD3 covers escape routes only.

Next step

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