Smoke Detection
Smoke Detection | Smoke Detectors | Electrical | Guild
From new builds to cherished older homes, HEP makes it effortless to protect what matters most with professionally installed smoke detectors. Our licensed electricians know exactly where each unit should go, how to interconnect them for whole-home alerts, and how to integrate modern features like smart notifications without cluttering your walls. The result is a sleek, code-compliant system that gives you those extra, crucial seconds to react when every moment counts.
Beyond installation, we stay on guard for you. HEP offers routine testing, battery or hard-wired backup checks, and fast replacements so your smoke detection network is always primed for action. Whether you need a full upgrade, a safety inspection, or just honest advice, we’re the local team you can trust to keep your family—and your peace of mind—safe.
FAQs
Why should I choose hard-wired (electrically powered) smoke detectors over battery-only models?
Hard-wired detectors are permanently connected to your home’s electrical circuit, so they always have power as long as your mains supply is active. They also include a back-up battery that keeps the unit operational during outages. This dual-power design means fewer dead-battery failures, the ability to interlink multiple detectors for whole-house alerts, and full compliance with current UK Building Regulations for new builds and most renovations.
How often do smoke detectors need to be replaced?
Most manufacturers recommend replacing smoke detectors every 10 years, even if they still appear to work. Over time the sensing chamber becomes less sensitive, internal components degrade, and standards improve. Check the manufacture date printed on the back of the unit; if it is 10 years or older, schedule a replacement to ensure reliable protection.
Where should smoke detectors be installed within a typical Guildford home?
In line with British Standard BS 5839-6:2019 for domestic premises, smoke detectors should be fitted: • On every storey, within the circulation space (usually the landing and hallway) • In the principal habitable room (e.g., lounge) • In any room where a fire could start while you sleep (e.g., bedrooms if there are heat sources) • At least 300 mm from walls or light fittings and no closer than 500 mm to any cooking appliance when it is a smoke unit (use a heat detector in kitchens). Proper siting maximises early warning and minimises nuisance alarms.
How often should I test and maintain my smoke detectors?
Test every detector once a month by pressing the test button until the alarm sounds. Vacuum or gently brush the vents every 6 months to remove dust that can impair sensing. Replace backup batteries annually (or sooner if the low-battery chirp sounds). Schedule a professional inspection annually if the system is linked to an alarm panel or has multiple interconnected units.
What can cause persistent false alarms and how can they be prevented?
Common triggers include steam from bathrooms, cooking aerosols, dust during renovation, and insects entering the sensing chamber. To reduce nuisance alarms: • Use heat detectors rather than smoke detectors in kitchens and garages. • Relocate units at least 3 m from bathroom doors. • Keep detectors clean and sealed during building works. • Choose detectors with integrated insect screens and hush buttons that allow you to temporarily silence accidental alarms without removing power.
Do I need a qualified electrician to install or replace hard-wired smoke detectors?
Yes. In England, installation of new mains-powered smoke alarms in a domestic dwelling is classed as ‘notifiable’ electrical work under Part P of the Building Regulations. A qualified, Part P-registered electrician will ensure the detectors are wired to a dedicated, fused circuit or appropriately protected lighting circuit, interlinked where required, and tested for correct operation. DIY installation can void warranties, lead to unsafe wiring, and may invalidate home insurance.