Carbon monoxide detectors are life-saving devices that alert you to the presence of the silent killer gas before it reaches dangerous levels. Without one, you may not even realise carbon monoxide is in your home until symptoms appear, and by then, it could be too late. 

If you want professional advice or installation for your carbon monoxide alarm, contact Maintracts Services. Call us on 02086822244 or email info@maintracts.co.uk today. 

 

At Maintracts Services, we combine decades of experience with Gas Safe expertise to ensure your home is safe from carbon monoxide threats — 24 hours a day, 7 days a week.

 

What Is A Carbon Monoxide Detector

A carbon monoxide detector is a safety device that measures the amount of carbon monoxide (CO) gas in the air and sounds an audible alarm if levels become dangerous. This gas is odourless, colourless, and produced by fuel-burning appliances such as boilers, gas hobs, and open fires. Because you cannot see or smell it, the only way to detect it in time is with a CO alarm.

CO detectors come in different models, including battery-operated CO detectors, mains-powered units, and smart CO detectors that connect to mobile apps for remote monitoring.

Carbon Monoxide Poisoning: Recognising The Symptoms

Without immediate action, CO poisoning can be fatal. Early symptoms often resemble the flu but without fever. Watch for: 

  • Headaches 
  • Dizziness 
  • Nausea or vomiting 
  • Confusion 
  • Weakness 
  • Loss of consciousness in severe cases 

If you suspect a CO leak, leave the property immediately, call the emergency services, and arrange an urgent inspection.  

Also Read: Carbon Monoxide Poisoning Guide 

 

Main Causes Of Carbon Monoxide In The Home

Understanding where carbon monoxide comes from is key to preventing a leak. Common sources include:

1. Faulty Gas Boilers

Poorly maintained boilers can leak CO into your home. An annual gas appliance service carried out by a Gas Safe registered engineer is essential to reduce risk.

2. Blocked Chimneys Or Flues

When chimneys or flues are obstructed, harmful gases cannot escape properly, causing a dangerous build-up indoors.

3. Malfunctioning Gas Hobs Or Cookers

If your gas hob or cooker is damaged or incorrectly fitted, it can produce unsafe CO levels.

4. Open Fires And Wood-Burning Stoves

Any fuel-burning appliance, including wood burners and open fires, can produce carbon monoxide without adequate ventilation.

5. Portable Heaters

Unvented portable heaters running on gas or paraffin can release CO into enclosed spaces. 

For more information on safety obligations, see our guide on the legal requirements for carbon monoxide alarms in rental properties. 

 

How To Install CO Detectors For Maximum Safety

1. Choose The Right Detector Type

Select from battery-operated, mains-powered, or smart CO detectors. Smart models send alerts to your phone when CO is detected.

2. Place Detectors Correctly

Follow CO detector placement guidelines. Fit alarms near bedrooms and living areas, and in rooms containing fuel-burning appliances. Avoid placing them too close to windows, extractor fans, or bathrooms where steam may cause false alarms.

3. Install At The Correct Height

Most CO detectors should be installed at breathing height, either on a wall or ceiling, depending on the manufacturer's instructions.

4. Multiple Units For Full Coverage

Larger homes may need multiple detectors to ensure complete safety. 

Also Read: Is Your Carbon Monoxide Alarm Working 

 

How To Test And Maintain Your Carbon Monoxide Detector

1. Test Monthly

Press the test button to ensure the alarm sounds. If it fails, replace the batteries or the unit as required.

2. Replace Batteries Annually

Even if your detector hasn't alerted you, batteries in battery-operated CO detectors should be replaced every year.

3. Keep Sensors Clean

Gently vacuum vents to prevent dust build-up, which can interfere with readings.

4. Replace Units Every 5–7 Years

CO sensors lose accuracy over time, so follow the manufacturer's replacement schedule.

5. Annual Gas Safety Checks

Book a boiler safety check with a Gas Safe registered engineer to reduce the risk of CO leaks from fuel-burning appliances.

 

Protect Your Home With Maintracts Services

Carbon monoxide is called the silent killer for a reason — it strikes without warning. Installing a reliable carbon monoxide detector is one of the simplest yet most important steps you can take to protect your household. 

At Maintracts Services, our Gas Safe engineers offer expert installation, testing, and maintenance of carbon monoxide alarms to meet all safety requirements, including landlord safety regulations. Whether you need a single battery-operated detector or an integrated smoke and CO alarm system, we can help. 

We have been serving London homes since 1974, providing 24/7 service and trusted expertise in gas safety and appliance care. 

Call us today on 020 8682 2244 or email info@maintracts.co.uk to arrange your carbon monoxide alarm installation or safety check. 

 

FAQs

What does a carbon monoxide detector do?

It monitors CO levels in the air and sounds an alarm when they reach dangerous levels.

Where should I place carbon monoxide detectors in my home?

Fit them near bedrooms, living spaces, and in rooms with fuel-burning appliances, following manufacturer placement guidelines.

Is it a legal requirement to have a carbon monoxide detector in the UK?

Yes, specific properties must have CO detectors installed, especially rental properties.

How often should I test my carbon monoxide detector?

Test monthly by pressing the unit's test button.

What are the signs of carbon monoxide poisoning?

Headaches, dizziness, nausea, confusion, and in severe cases, loss of consciousness.

Can a carbon monoxide detector detect gas leaks?

No, they only detect CO gas, not other fuel gases like natural gas.

Do landlords need to provide carbon monoxide detectors?

Yes, landlords must provide and maintain CO alarms following safety regulations.