Residential Fire & Smoke Alarm Systems in Hertfordshire, Bedfordshire & Surrounding Counties
Protect your home and family with professionally installed fire alarm and smoke alarms from Harpenden Alarms. We supply, fit and upgrade domestic fire detection for properties houses and flats across, Hertfordshire, Bedfordshire and Buckinghamshire, from mains-powered smoke alarms with battery backup to interlinked systems and heat alarms for kitchens and garages.
Book a free site survey and we’ll recommend the right coverage for your property.

Steve and the lovely people did a great job with our burglar alarms, and support is outstanding. 😍
— Tracey, Harpenden

Fire Alarms, Smoke Alarms and Fire Protection Systems, Designed, Installed, Monitored
A well-planned fire detection setup gives you early warning, when seconds matter. The right mix of smoke alarms, heat alarms and carbon monoxide detection (where required) helps ensure the alarm triggers quickly without nuisance alarms, and that everyone in the home hears it.
At Harpenden Alarms, we assess your layout and risk areas, then recommend and install a domestic fire and smoke alarm system that suits your property, whether you need a straightforward replacement, additional coverage, or an interlinked solution across multiple floors.
1
Early warning and faster response
Detect smoke or rising heat quickly to help you react sooner.
2
Correct coverage across key areas
Hallways, landings, bedrooms, living spaces, kitchens and garages, tailored to your home.
3
Reduced nuisance alarms
Heat alarms and appropriate sensor selection in kitchens and high-steam areas.
4
Interlinked alarms for whole-home alerting
When one alarm triggers, others can sound too (system dependent), ideal for multi-storey homes.
5
Mains-powered or wireless options
Advice on the most suitable approach for your property and existing wiring.
6
Professional installation and clear handover
Correct placement, testing, and guidance on weekly checks and ongoing upkeep.

Wireless Sounder
Let everyone know you’re protected with our wireless sounder. Available for both indoor and outdoor use.

Mobile App
Be connected to your home at all times with the mobile app. View event history, monitor CCTV and arm/disarm your security alarm remotely.

Wireless LCD Keypad
An easy to use keypad for arming/disarming your home security system as well as activating home appliances.

Control Panel
Comes with inbuilt PSTN module to connect the system to your fixed telephone line.

PIR
Our indoor PIR can be set to distinguish between pets and intruders, so no false alarms!

Camera PIR
A wireless detector that automatically sends pictures to your mobile during an intrusion.

Wireless Entry FOB
A convenient remote for arming/disarming your alarm system.

Wireless Door Contact
A magnetic door contact that activates your home alarm.
Ready to improve fire safety at home?
Arrange a free site survey and we’ll recommend the right fire and smoke alarm coverage for your home, including the best locations and the right alarm types for each area.