Smoke and Heat Alarms Wiring and Installation Services in London
Reliable Safety Starts with Professional Smoke & Heat Alarm Installation
Having a professionally installed and correctly wired smoke and heat alarm system is essential.
At 24emergency Electrician Ltd, we specialise in expert installation and wiring of smoke alarms and heat alarms. We ensure every property we work on meets UK fire safety regulations.
When you search for reliable smoke alarm installers near me in London, look no further than 24emergency Electrician Ltd.

Your Safety is Our Priority
Electrical fires and undetected smoke or heat can result in devastating damage. With a professionally installed and hard-wired smoke alarm, you gain peace of mind knowing your property is protected.
Whether you need a smoke alarm installation for a new build or an upgrade to existing smoke alarm electrical wiring, we’re here to help.
We cover both short-term urgent installations and long-term maintenance and upgrades. Our local electricians offer tailored, cost-effective solutions.
Our Services – Expert Smoke & Heat Alarm Installations in London
We offer a comprehensive range of services to meet all your fire alarm installation needs. Here’s what we offer:
1. Smoke Alarm Installation
Need help with a smoke alarm installation in London? We have got you covered.
- Installation of hard-wired smoke alarms
- Replacement and upgrade of outdated units
- Mains-powered systems with battery backup
- Integration with security or fire alarm systems
- Custom alarm placements for optimal coverage
2. Safety Audits & Compliance
Stay compliant with UK fire safety law. We offer:
- Property-wide assessments of smoke and heat alarm systems.
- Certification of installations.
- Advice on placement, maintenance, and alarm lifespan.
3. Heat Alarm Installation

Heat alarms are critical in areas where smoke alarms may trigger false alerts.
- Professional installation of wired heat alarms for kitchens.
- Discreet yet accessible placement.
- Integration with existing smoke alarm systems.
Compliant with all UK safety standards.
4. Smoke and Heat Alarm Wiring
Correct wiring for smoke alarms is essential for their functionality and safety. Our qualified electricians are highly experienced in:
- Full smoke alarm wiring from scratch.
- Rewiring for system upgrades.
- Diagnosing and repairing faults in existing alarm wiring.
Creating wiring for smoke alarm diagrams for property owners and managers.
5. Fault Diagnosis & Repairs
Is your wired smoke alarm beeping unexpectedly? Our team offers fast, 24/7 call-outs across London to resolve:
- Intermittent false alarms.
- Power supply issues.
- Battery backup failures.
- Wiring faults and signal losses.
Why Choose Us for Smoke and Heat Alarm Installation in London?
1. Local Expertise, Available 24/7
Do you need help with a smoke alarm installation near me in London? We are local smoke alarm installers in London with round-the-clock availability. Our certified electricians deliver prompt and professional service when you need it most.
2. Fully Qualified and Insured
All our engineers are NICEIC-certified, insured, and trained in the latest standards for smoke alarm electrical wiring. We follow all UK Building Regulations and BS 5839-6 guidance for domestic fire detection systems.

3. Affordable and Transparent Pricing
Wondering about the smoke alarm installation cost? Or the heat alarm installation price? We offer competitive, up-front quotes and no hidden fees. We’re proud to be among the most affordable smoke alarm installers in London.
- Free site assessments
- Clear itemised quotes
- Options to suit all budgets
Bespoke Solutions
We don’t believe in one-size-fits-all. Whether you need a single wired-in smoke alarm or a multi-alarm system for a commercial building, we can help. We tailor each installation to the size and layout of your space.
Long-Term Peace of Mind
We provide long-term support, including:
- Scheduled maintenance plans.
- Annual testing and checks.
- Battery backup replacement.
Advice on evolving fire safety needs.
Our Approach to Installing Smoke and Heat Alarm Systems
We take a meticulous and safety-first approach to every smoke and heat alarm installation.
Here’s how we do it:

Initial Consultation & Risk Assessment
We start by discussing your needs and assessing your property layout. This helps us determine the best type and placement of alarms.

Custom System Design
Using your floor plan and risk profile, we recommend a compliant alarm system. We factor in alarm type, room usage, and interlinking to provide full coverage.

Professional Installation
Our certified electricians carry out safe and efficient smoke alarm electrical wiring. All alarms are securely mounted and tested for function, range, and reliability.

Testing & Demonstration
We rigorously test each unit and demonstrate its use to ensure you understand how the system operates. This includes simulating alarm triggers, checking the power supply, and testing backup batteries.

Ongoing Support & Maintenance
Our service doesn’t end at installation. We offer maintenance plans, battery replacements, and emergency repairs.
Book Your Installation Today
Your safety is too important to delay. If you need to install smoke alarms, contact us.
Trust 24emergency Electrician Ltd for top-quality smoke and heat alarm wiring and installation in London.
Whether you’re upgrading to wired smoke alarms or adding a wired heat alarm for your kitchen, we are here to help.Call us now to book your free consultation.

Frequently Asked Questions ?
What’s the difference between a smoke alarm and a heat alarm?
A smoke alarm detects smoke particles in the air. It uses either ionisation or optical sensors. It is ideal for living rooms, bedrooms, hallways, and communal areas.
A heat alarm, on the other hand, responds to sudden increases in temperature. It is commonly installed in kitchens, boiler rooms, and garages.
We install both types, depending on your property layout and fire risk assessment.
How often should smoke and heat alarms be replaced?
The general guideline is:
- Smoke alarms: Replace every 10 years.
- Heat alarms: Replace every 10 years.
- Battery backup: Replace every 1–2 years, unless it’s a sealed long-life battery.
Why is my wired smoke alarm beeping even when there’s no fire?
A wired smoke alarm beeping is usually a sign of:
- Low or expired backup battery.
- Dust build-up in the sensor.
- Power supply interruption.
- End-of-life warning.
- Loose wiring connections.
We offer 24/7 emergency callouts to diagnose and fix these issues promptly.
How many alarms do I need in my home or flat?
It depends on the size and layout of your property, but as a general rule:
- One smoke alarm per storey (minimum).
- One smoke alarm in every hallway and landing.
- One heat alarm in the kitchen.
- Interconnected alarms for multi-floor properties.
We conduct a site-specific fire risk assessment prior to any installation. It allows us to recommend the best placement and quantity.
How much does a smoke alarm installation cost in London?
The cost to install smoke alarms depends on the following:
- Type of alarm (smoke or heat).
- Quantity needed.
- Wiring complexity.
- Whether it’s a new install or a replacement.
Average pricing:
- Standard hard-wired smoke alarm installation: from £80–£120 per unit.
- Heat alarm installation: from £100–£140 per unit.
- Full system wiring: custom quoted after a site inspection.
We offer free quotes with no obligation.
How long does it take to install smoke or heat alarms?
The time varies based on property size and the complexity of the wiring. However, most standard domestic installations can be completed within 2 to 4 hours.
Larger commercial properties or rewiring jobs may require more time. We’ll always provide a precise time estimate in advance.