The 10 Best Fire Alarms Offers in UK - July 2026

Last updated: 30. July 2026
Fire Alarms Comparison - We´ve already helped over 5 million consumers this year!
1
Best Rated
10.0
Only today: 13% OFF!
£25.45 (13% DISCOUNT!)
  • SMOKE DETECTORS FOR HOME: The optical smoke alarm makes protecting your home simple. Its optical sensing chamber 'sees' smoke as it enters the alarm, providing a fast response to slow burning fires with thick white smoke.
  • FEWER NUISANCE ALARMS: The advanced optical sensor ensures the FireAngel smoke alarm is less prone to false alerts from cooking fumes. Avoid placing near bathrooms or kitchens.
  • 10-YEAR BATTERY: Each smoke alarm is fitted with a 10-year sealed battery, offering protection for the lifetime of the device without needing to change the batteries.
  • EASY INSTALLATION: Fitted with a removable base plate, secure it to the ceiling using the screws provided. Push and twist to secure the device. The base plate is identical to the ST622, making replacements quick and easy.
  • SAFETY ASSURED: The FA6620 smoke alarm holds CE and UKCA marks and is certified to BS EN 14604:2005+AC:2008. Suitable for domestic premises, including leisure accommodation vehicles, it comes with a 5-year warranty.
2
Best Price
9.9
Only today: 32% OFF!
£9.99 (32% DISCOUNT!)
  • EARLY WARNING SMOKE DETECTOR: The optical smoke alarm makes protecting your home simple. The optical smoke sensing chamber works by 'seeing' smoke as it enters the alarm, perfect for slow burning fires with thick white smoke.
  • TOAST PROOF: The high performance optical sensors ensure the FireAngel SB1-R is less prone to false alarms from cooking fumes, so you can enjoy your breakfast in peace.
  • TEST/HUSH BUTTON: Press the large test button to ensure your Fire Angel smoke alarm is working properly. A loud, high-pitched sound will verify it. To silence a false alarm, press and hold the button for 5 seconds.
  • 1 YEAR BATTERY: Each battery operated smoke alarm comes with a 1 year, replaceable 9V battery. When the smoke alarm battery is low, the device will 'chirp' and the red LED will flash once every 32 seconds. Replace the battery ASAP.
  • EASY INSTALLATION: Each FireAngel smoke alarm comes with a removable base plate. Attach the base plate to the ceiling using the screws provided. After inserting the battery, push and twist the alarm clockwise onto the base plate.
  • SAFETY ASSURED: The SB1-R alarm holds both CE and UKCA marks and has been certified to BS EN14604:2005. Suitable for domestic properties including mobile homes and caravans. Not suitable for commercial properties. Includes a 3-year warranty.
  • FIREANGEL HOME PROTECTION: In addition to our smoke alarms, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard carbon monoxide and heat alarms.
3
9.9
Only today: 17% OFF!
£14.50 (17% DISCOUNT!)
  • Sensitive & Intelligent: The state-of-the-art photoelectric sensor, combined with an advanced intelligent chipset, this smoke alarm for home can accurately detects dangerous smoke levels in seconds with fewer false alarms
  • 10-Year Battery Life: The low power consumption, combined with a built-in non-replaceable lithium battery, enables an incredible product life of up to 10 years; provides reliable uninterrupted 24/7 protection so you can sleep safely
  • Reliable Auto-Check: The fire alarm monitors itself constantly and timely informs you of faults or a low battery for secure use
  • Superior Construction: Made of fire-retardant ABS plastic material; the long-lived smoke detector horn alerts you with a loud 85-decibel alarm when smoke has been detected
  • High Quality: This premium smoke alarm conforms to EN 14604 standard
4
9.8
  • Status photoelectric smoke alarm for reliable fire detection Status provides peace of mind with this 9V photoelectric smoke alarm designed for use in homes, flats or rental properties. Ideal for early warning detection of slow-smouldering fires in bedrooms, hallways and kitchens.
  • Photoelectric sensor for faster smoke response Fitted with a photoelectric sensor that reacts quickly to visible smoke from smouldering materials like furniture or overheated wiring. Reduces false alarms from cooking compared to traditional ionisation detectors.
  • Battery operated with 9V battery included Ready to use out of the box, this alarm comes complete with a 9V battery for quick, easy installation without wiring. Ideal for homeowners, landlords or tenants looking for hassle-free fire protection.
  • Test button and low battery warning for safety checks Includes a manual test button for regular function checks, plus a built-in low battery alert to ensure it remains active. Easy to maintain with clear audio signals when the battery needs replacing.
  • Compact white design for discreet ceiling or wall mounting Finished in neutral white with a slim profile, this alarm blends neatly into any home décor. Suitable for mounting in bedrooms, hallways, kitchens or lounges to meet fire safety standards.
5
9.7
  • 🏡 Advanced Optical Detection for Rapid Response || Safeguard your family with this 2 pack smoke alarm for home, featuring photoelectric (optical) sensing technology. It swiftly detects smoke from slow-burning fires — essential for enhancing protection in any home, office, flat, or caravan.
  • ⏱️ 10-Year Sensor Life with Replaceable 5-Year Battery || Engineered for lasting safety, each fire alarm for home offers a durable 10-year lifespan and comes pre-equipped with a 5-year battery. No wiring, no fuss — just replace the battery when needed to keep your battery operated smoke alarm active.
  • 📢 Loud 85dB Alarm & Flashing LED Light || When danger strikes, the alarm emits a powerful 85dB siren with a red LED alert — easily heard across bedrooms, kitchens, hallways, stairways, lofts, and offices. A reliable smoke detector for home with visual and audio warnings.
  • 🔇 Silence Button to Prevent Nuisance Alarms || Minimise false alarms with the handy test/silence button — ideal for kitchens or areas with steam. Temporarily silence the alarm during cooking; it reactivates automatically for continued monitoring.
  • ✅ EN14604 Certified with Auto Self-Test || These smoke detectors for home meet the strict EN14604 safety standard. An automatic self-check runs every 33 seconds, shown by a flashing LED, confirming the fire alarm's status without interrupting your day.
  • 🛠️ Effortless DIY Installation || Designed for convenience, this battery smoke alarm installs in minutes using included screws and mounting brackets — no rewiring required. Great for landlords, new builds, or renters upgrading their home fire detectors.
  • 🛡️ Durable Flame-Retardant Construction || Made from high-quality ABS+PC, this smoke alarm withstands high temperatures. Its flame-retardant design ensures extra protection and long-term reliability in all environments — from your home to your caravan or garage.
6
9.6
  • SMOKE DETECTORS FOR HOME: Keep your home safe with an optical smoke alarm that’s smart and responsive - its advanced sensor “sees” smoke instantly for fast alerts to slow, smouldering fires
  • 9V REPLACEABLE BATTERY: Powered by a standard 9V battery for easy replacement and dependable protection. Designed for convenience, your BLACK+DECKER smoke alarm alerts you when a battery change is needed, ensuring continuous, reliable performance
  • RELIABLE SMOKE DETECTION: Features a high-performance optical sensor that quickly detects slow, smouldering fires by sensing smoke particles in the air. Ideal for living areas, bedrooms, and hallways, avoid installation in kitchens or near bathrooms
  • EASY TESTING & LOW FALSE ALARMS: Large, accessible test button allows simple operation to check the alarm’s functionality. Engineered to reduce false activations caused by cooking fumes or steam, ensuring dependable performance where it matters most
  • QUICK INSTALLATION & TRUSTED QUALITY: No wiring required, just mount with included screws and twist alarm into place. Built in alarm memory flashes for 72 hours after activation. Certified and Approved to BS EN 14604:2005+AC:2008
7
9.5
Only today: 21% OFF!
£11.99 (21% DISCOUNT!)
  • SMOKE DETECTORS FOR HOME: Keep your home safe with an optical smoke alarm that’s smart and responsive - its advanced sensor “sees” smoke instantly for fast alerts to slow, smouldering fires.
  • 10 YEAR BATTERY INCLUDED: Enjoy a decade of reliable safety, no battery changes needed for the entire lifespan of your Black+Decker smoke alarm. The sealed, tamper proof 10 year lithium battery lasts the life of the alarm. The alarm will indicate when it needs replacing
  • SMART DETECTION: Designed with an advanced optical sensor, the Black+Decker smoke alarm reduces false alarms from cooking smoke - simply install away from kitchens and bathrooms for optimal results.
  • EASY SET UP GUIDE: Insert the alarm onto the activation back base plate and twist the alarm firmly clockwise until you hear a ’CLICK’ then press and HOLD the test button for at least 3 SECONDS until you hear the alarm sound. If the alarm doesn’t sound after 3 seconds, twist the alarm firmly clockwise to try again.
  • SAFETY ASSURED: Trust Black+Decker quality with this Smoke Alarm, certified to BS EN 14604:2005+AC:2008 and fully compliant with CE and UKCA standards. Perfect for home or leisure spaces.
8
9.4
Only today: 22% OFF!
£18.89 (22% DISCOUNT!)
  • 【Quick smart 】The smoke by the change in the intensity of the infrared light scattered in the smoke. When the light intensity received by the photosensitive receiver exceeds the set value, the piezoelectric horn will be driven to sound an alarm.
  • 【Easy Installation】 No need to connect wires, just use the attached screws to fix the anchor plug on the mounting bracket, and rotate the smoke sensor to the right to the gap to complete the installation on the wall or ceiling.
  • 【Reliable Security】 When the smoke sensor has a short circuit, open circuit or other bad conditions, the smoke alarm will automatically detect and send a fault signal. Protect family and property safety in time.
  • 【Long product life】 Compared with other battery and machine integration products, the product has a 10-year lifetime and a 5-year replaceable DC 9V battery operated, which is more user-friendly.
  • 【High standard, safe and reliable certification】 The smoke alarm has passed CE certification and British BRE certification, providing you with better safety and reliability.
9
9.3
Only today: 32% OFF!
£20.49 (32% DISCOUNT!)
  • EARLY WARNING SMOKE DETECTOR: The optical smoke alarm makes protecting your home simple. The optical smoke sensing chamber works by 'seeing' smoke as it enters the alarm, perfect for slow burning fires with thick white smoke.
  • TOAST PROOF: The high performance optical sensors ensure the FireAngel SB1-R is less prone to false alarms from cooking fumes, so you can enjoy your breakfast in peace.
  • TEST/HUSH BUTTON: Press the large test button to ensure your Fire Angel smoke alarm is working properly. A loud, high-pitched sound will verify it. To silence a false alarm, press and hold the button for 5 seconds.
  • 1 YEAR BATTERY: Each battery operated smoke alarm comes with a 1 year, replaceable 9V battery. When the smoke alarm battery is low, the device will 'chirp' and the red LED will flash once every 32 seconds. Replace the battery ASAP.
  • EASY INSTALLATION: Each FireAngel smoke alarm comes with a removable base plate. Attach the base plate to the ceiling using the screws provided. After inserting the battery, push and twist the alarm clockwise onto the base plate.
  • SAFETY ASSURED: The SB1-R alarm holds both CE and UKCA marks and has been certified to BS EN14604:2005. Suitable for domestic properties including mobile homes and caravans. Not suitable for commercial properties. Includes a 3-year warranty.
  • FIREANGEL HOME PROTECTION: In addition to our smoke alarms, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard carbon monoxide and heat alarms.
10
9.2
Only today: 15% OFF!
£18.99 (15% DISCOUNT!)
  • SMOKE DETECTORS FOR HOME: The SW1-R mains powered optical smoke alarm has a 9V backup battery for protection during outages. It detects slow-burning fires, making it ideal for living spaces. For full coverage, consider FireAngel Thermoptek Alarms.
  • ENHANCED SENSING: The high performance optical smoke sensor ‘sees’ white smoke as it enters the alarm, providing a fast response to slow, smouldering fires while being less prone to false alarms.
  • LINKED SMOKE ALARMS: The SW1-R functions as a standalone unit or can be wired with up to 12 other mains powered smoke (SW1), heat (HW1), or carbon monoxide (CW1) alarms. All alarms sound simultaneously if one is triggered.
  • SAFETY ASSURED: The SW1-R mains smoke alarm meets British Safety Standard EN 14604: 2005 and is designed for domestic use. It comes with a 5 year warranty.
  • SLEEP EASY: The Sleep Easy function allows you to silence low battery chirps for up to 8 hours, ensuring an uninterrupted night’s sleep while still keeping your home protected.

Compare Fire Alarms and find the most suitable offer.

More information about Fire Alarms and why you should compare offers and deals:

A fire alarm is a crucial component of every building's safety system, designed to detect and alert individuals of a potential fire emergency. These devices are specifically built to sense smoke, heat, or flames and emit a warning signal, such as a loud siren or a flashing light, to notify occupants and prompt them to take immediate action.

Fire alarms come in various forms, including standalone smoke detectors, heat detectors, and comprehensive fire alarm systems. Standalone smoke detectors are typically battery-operated units that can be easily installed in homes or small buildings. On the other hand, heat detectors are ideal for environments with high levels of smoke or dust, such as kitchens or garages, as they are less prone to false alarms. Fire alarm systems, on the other hand, consist of interconnected devices throughout a building, including smoke detectors, heat detectors, manual call points, and control panels. These systems provide advanced protection in larger structures, automatically triggering alarms and alerting the fire department.

Fire alarms utilize advanced technology to efficiently detect the presence of fire. Smoke detectors, for example, employ ionization or photoelectric sensors to identify smoke particles or changes in light patterns caused by smoke. Heat detectors rely on either a fixed temperature or a rate-of-rise mechanism to sense abnormally high temperatures. Some advanced fire alarm systems also include features like carbon monoxide detection or wireless connectivity, allowing for remote monitoring and control.

To ensure the optimal functioning of fire alarms, regular maintenance is crucial. This includes periodic testing, cleaning, and battery replacement for standalone devices, as well as the inspection and servicing of fire alarm systems by professionals. Building occupants should also be educated on fire safety procedures, including how to respond when a fire alarm is activated and how to evacuate the premises in a swift and safe manner.

Overall, fire alarms are essential tools in preserving the safety of individuals and protecting properties from the devastation caused by fires. By promptly detecting and alerting occupants to the presence of flames or smoke, these devices provide a vital early warning system that can ultimately save lives and minimize property damage.

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