Smoke alarm installation in Hendon

The Smoke Alarms and Carbon Monoxide Alarm (Amendment) Regulations 2022, effective 1 October 2022, require every landlord in Hendon to install at least one smoke alarm on every storey of the rental property used as living accommodation. This applies regardless of whether a floor has a bedroom — any floor with a habitable room requires a smoke alarm.

Carbon monoxide alarms are now mandatory in every room with a gas, oil, or solid fuel appliance. For most Hendon properties this means a CO alarm wherever the boiler is located and wherever there is a gas hob. CO alarms must comply with BS EN 50291.

Alarms must be in working order at the start of each tenancy. If a local authority inspection finds non-compliance, the landlord may be issued a remedial notice and face a civil penalty of up to £5,000. HMO properties in Hendon face stricter requirements — typically Grade D Category LD2 as a minimum — covering all bedrooms and escape routes.

BS 5839-6 provides detailed guidance on alarm positioning, grades, and categories beyond the legal minimum. Our engineers apply BS 5839-6 to every installation in Hendon, ensuring both legal compliance and best-practice fire protection.

Standalone smoke alarms operate independently — each unit detects and sounds on its own. They are a low-cost option for small properties but offer limited protection in larger homes where an occupant may not hear an alarm sounding on a different floor. BS 5839-6 recommends interlinked alarms for all new and replacement installations.

Wireless interlinked systems are the ideal choice for most Hendon properties because they require no structural work. RadioLINK technology lets each alarm communicate with the others — one detector triggered means every alarm in the house sounds simultaneously. Systems can include optical smoke alarms, heat alarms, and CO alarms all interlinked on the same network.

Hard-wired interlinked systems are the gold standard for new builds and properties undergoing significant refurbishment. Mains-powered Grade D alarms with battery backup are interconnected via cable — they are more reliable long term and require no radio frequency coordination.

Grade D Category LD2 is the legal minimum for most private rented homes — alarms in circulation areas and higher-risk rooms. Category LD1 extends coverage to all rooms. We advise on the right category for your Hendon property during a free pre-installation consultation.