Alarms in Chatham

Smoke alarms save lives — but only if they’re sited correctly, interlinked properly, and powered from somewhere reliable. CJA Electrical fits Aico mains-wired interlinked alarms across Chatham as an Aico Expert Installer (manufacturer-trained on the 3000 Series). One alarm sounds, they all sound; the install is done by someone who’s been trained on the kit; the certificate at the end is what Medway Council, fire risk assessors, and insurers expect to see.

What Alarms actually is

The system Aico Expert Installers fit across Chatham is the Aico 3000 Series — current generation interlinkable mains-wired alarms with sealed 10-year batteries, available in optical smoke, heat, multi-sensor (smoke + heat), and CO variants. All interlink natively over RF (using Aico’s SmartLINK protocol) and can be hard-wire interlinked where preferred. The 3000 Series is what we recommend by default because it’s the kit we’re manufacturer-trained on, the install procedures are consistent across the range, and the alarms genuinely outperform the budget-end of the market on smoke detection sensitivity and false-alarm resistance.

When you need Alarms in Chatham

The most common driver of Chatham smoke alarm installation work is rental compliance. The Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022 require at least one smoke alarm on every storey of a rented property where there’s a room used for living accommodation, plus a carbon monoxide alarm in any room with a fixed combustion appliance. Medway Council can issue penalties up to £5,000 for non-compliance. Beyond rental: HMO licence renewals (typically requiring a higher grade system with heat detection in kitchens), homeowners upgrading from old battery-only alarms, period property without any smoke alarms at all, and new-kitchen installations needing a heat alarm added to the existing system.

Standards and what compliance looks like

The technical standard for domestic smoke alarms in the UK is BS 5839-6 — “Code of practice for the design, installation, commissioning and maintenance of fire detection and fire alarm systems in domestic premises”. The standard sets out grades (A, B, C, D1, D2, F) covering different supply configurations and protection levels, with Grade D1 (mains + sealed 10-year battery, interlinked) the standard for most Chatham domestic property. For HMO common parts, the standard typically steps up to Grade A (panel-based) or Grade B depending on the building size and complexity. Medway Council will specify the required grade as part of the HMO licence conditions.

Fittings and where they go

Where each alarm goes on a Chatham domestic install: Smoke alarms — circulation spaces. Landings, hallways, top and bottom of stairs. Mounted to the ceiling at least 300 mm from any wall or light fitting. Heat alarms — kitchens. Mounted to the ceiling, away from the cooker hood, where rising heat would reach the alarm promptly without interference from steam or oil vapour. CO alarms — mounted near (not directly over) any fixed combustion appliance: boiler, gas fire, wood burner. Manufacturer guidance specifies horizontal and vertical distances; we follow the Aico install guide on each fitting. Multi-sensor alarms (combined smoke + heat) are an option in some scenarios — useful in open-plan kitchen-diner layouts where a pure smoke alarm would false-trigger on cooking.

Testing schedule and remedials

BS 5839-6 specifies a monthly test cycle on Grade D1 systems — the householder presses the test button on each alarm to confirm it sounds and that the interlinking is operating. For HMOs and larger installations, weekly testing of common- parts alarms is typical, with quarterly full-discharge testing on Grade A panel systems. Annual servicing is good practice on any installed system — a competent person tests each alarm, checks battery condition, and verifies the interlink. CJA Electrical does the annual service on systems we’ve installed and on systems installed by others.

Why Chatham property owners book CJA Electrical

The reasons Chatham clients book us for smoke alarm work: Aico Expert Installer credential (manufacturer-trained on the 3000 Series, not a generalist who fits anything from Screwfix), local-trader trust (small operation, reputation matters, no aggressive upsell on whatever the customer actually needs), and clean documentation (BS 5839-6 certificate plus install diagram, supplied as PDF after the install). For HMO and rental clients specifically, the certificate format is what Medway Council accepts during licence renewals and enforcement visits. We’ve fitted systems across multiple HMO portfolios in Medway on that basis.

How the work runs

Most Chatham domestic alarm installs run as a single-visit job after a brief site survey. The survey takes 30 minutes and confirms positions, interlink method, and any specific layout constraints (low ceilings, sloped landings, kitchen geometry). Quote follows within a working day. Install day — half a day on site. We mount each alarm, interlink wirelessly via SmartLINK (or hard-wire if that’s what the property calls for), test the system, walk the householder through the monthly test procedure, and supply the BS 5839-6 certificate as a PDF. Annual servicing, if the householder wants it scheduled, is booked directly into the diary at install time.

What affects the price

The factors that move Chatham smoke alarm install pricing: number of floors and circulation spaces (more alarms), interlinking method (RF and hard-wired land at similar price points but RF is typically faster on retrofit), any consumer unit work needed (adding a dedicated alarm circuit), and any rewiring required where existing alarm wiring isn’t viable. Quote includes everything: the alarms, interlinking, labour, consumer unit work if needed, demonstration, and the BS 5839-6 certificate. No hidden costs, no surprise add-ons on the day.

FAQs

What about smoke alarm rules for HMOs?

HMOs have stricter requirements than ordinary rented homes — typically a higher BS 5839-6 grade with heat detection in kitchens and panel-based alerting on larger conversions. Specific requirements depend on the HMO size and the local council. We can specify and install to whatever Medway Council requires for your licence renewal.

Why Aico specifically?

Aico are the UK market leader in residential smoke alarms and the manufacturer most fire risk assessors and councils across Medway are familiar with. The 3000 Series is the current generation — interlinkable mains-wired alarms with sealed 10-year batteries — and we’re manufacturer-trained on the range as Aico Expert Installers. The kit performs reliably in real fires.

How long do mains-wired alarms last?

Aico 3000 Series alarms are designed for a 10-year service life with sealed batteries that last the same period. The alarm itself signals end-of-life via its status indicator a few months before expiry, giving plenty of warning to schedule replacement. Older alarms (pre-3000 Series) often have shorter lives, particularly fluorescent bulkhead-style units which were typically rated for 8-10 years.

Can you install in occupied property without making a mess?

Yes. Most Chatham domestic installs run as a single-visit half-day job with minimal disruption. Wireless interlinking means no need to chase wires through walls between alarms; the install is mostly about mounting alarms to ceilings and connecting each to a power supply. Dust sheets out, vacuum on the way out.

What’s the difference between heat and smoke alarms?

Smoke alarms detect smoke particles in the air and trigger on combustion. Heat alarms detect temperature rise (typically triggering at 58°C or more) and don’t false-trigger on cooking smoke or steam. Heat alarms go in kitchens; smoke alarms go everywhere else. Multi-sensor alarms combine both and are useful in open-plan kitchen-diner layouts.

Do I need a CO alarm too?

If the property has any fixed combustion appliance — gas boiler, gas fire, wood burner, oil boiler — yes. The Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022 require a CO alarm in any room used as living accommodation where there’s a fixed combustion appliance. We fit Aico Ei3018 CO alarms as part of the same install, interlinked with the smoke alarms.