A Boiler Gas Safe Certificate, also referred to as a CP12 Certificate, is an official document issued by a qualified Gas Safe engineer after inspecting your boiler and other gas appliances. The certificate confirms that your property meets the necessary safety standards.
Details of the property and landlord (if applicable)
Information about the gas appliances checked (boiler, cooker, gas fire, etc.)
Results of safety checks on ventilation, flues, and pipework
Notes on any issues or recommendations
Confirmation that the appliances are safe to use
Landlords in London are legally obliged to obtain a Gas Safety Certificate every 12 months. This applies to all rental properties, whether it is a single flat, an HMO (House in Multiple Occupation), or a commercial unit.
Faulty boilers or gas appliances can cause leaks, fires, or carbon monoxide poisoning. A Gas Safe inspection ensures your tenants are living in a safe environment.
Having a valid certificate gives landlords and property managers peace of mind, knowing they are fully compliant with UK regulations and protected from legal consequences.
Insurance providers often require evidence of gas safety compliance. A valid Gas Safe Certificate can also enhance the credibility and value of your property when selling or renting.
Some common signs that your boiler needs repair include strange noises (banging, whistling, or gurgling), low water pressure, leaks, inconsistent heating, no hot water, and unusual smells. If you experience any of these issues, it’s best to call a professional boiler repair service to inspect and fix the problem before it worsens.
The time it takes to repair a boiler depends on the severity of the issue. Simple repairs, like replacing a valve or thermostat, can take 1–2 hours. More complex problems, such as fixing a major leak or addressing system faults, may take several hours or even longer. Our technicians will assess the situation and provide a clear timeline.
The cost of a boiler repair varies depending on the issue, the parts required, and the model of your boiler. Simple repairs may start at £70–£100, while more complicated repairs can cost £200 or more. We offer competitive pricing and will provide a transparent estimate before starting any repair work.
Yes, we offer 24/7 emergency boiler repair services in London. If your boiler breaks down unexpectedly or during cold weather, our team is available to provide quick and efficient repairs to get your heating and hot water running again as soon as possible.
It is recommended to have your boiler serviced at least once a year to ensure it operates efficiently and to prevent potential breakdowns. Regular servicing helps identify issues early, improves the lifespan of your boiler, and ensures it’s safe to use, especially during winter months when it's under heavy use.
We repair all major types of boilers, including combi boilers, system boilers, and conventional boilers. Our engineers are trained to handle repairs on various brands like Vaillant, Worcester Bosch, Ideal, Baxi, and more.
Not necessarily. Most boiler issues can be repaired. However, if your boiler is old (over 10–15 years) or if the cost of repairs outweighs the benefits, we may recommend replacing it. Our engineers will assess the situation and provide you with the best options for repair or replacement.
If your boiler is leaking, switch off your boiler and the water supply to prevent further damage. Then, call a qualified engineer immediately. A leak could indicate a serious problem, and delaying repairs can lead to significant damage to your heating system or property.
It is strongly advised not to attempt DIY boiler repairs. Boilers are complex systems that should only be handled by Gas Safe registered engineers. Attempting repairs on your own could not only void warranties but also pose serious safety risks, including carbon monoxide poisoning.
Booking a boiler repair service with us is easy. You can either call our office directly or book online through our website. We offer flexible scheduling and emergency call-outs to accommodate your needs.
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