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We provide a Gas Safety Certificate in London to landlords, homeowners, and estate agents

Landlord gas certificates, from a trusted provider on the Gas Safe Register, provide complete assurance that you are acting responsibly, with due care for your tenants.

Landlord gas certificates are of course a legal obligation. But there are many other reasons to get a landlord gas certificate from a reputable engineer. A certificate proves you had an expert come in and certify gas safety. If you’re looking to arrange a landlord gas certificate for a property in London, don’t hesitate to get in touch. Our team covers North London, East London, South East London, South West London, West London, North West London and Central London.

The Gas Safety (Installation and Use) Regulations of 1998 established the rules for the safety of installations and appliances in the UK. They apply to both natural gas, and liquefied petroleum gas (LPG).

The regulations apply to all installations. They require an annual gas safety certificate by a competent person and there are no exceptions made.


Charges are per hour with a one hour minimum charge

ServiceMon-Fri (8am-6pm)Out of Hours / Weekends
Boiler Repair£95.00+VAT£150.00+VAT
ServiceMon-Fri (8am-6pm)
Boiler Service£95.00+VAT
Gas Certificate£95.00+VAT
Power Flush (up to 4 radiators)£300.00+VAT then £35.00+VAT per additional Radiator
Landlord Gas Certificate & Boiler Service£130.00+VAT
ServiceMon-Fri (8am-6pm)
Wireless Programmable Room Thermostat£150+VAT + FITTING
Cylinder Thermostat£100+VAT + FITTING
Boiler Programmer£100+VAT + FITTING
Radiator Thermostats£30+VAT + FITTING
Radiators£100 - £200+VAT + FITTING
Boiler Performance Analyser Test£95+VAT
Boiler Fault Diagnostics Test£95+VAT
Central Heating Pumps£120 - £180+VAT + FITTING
2 and 3 Port valves Fitted£120 - £180+VAT + FITTING

We accept all major credit / debit cards. Payment on job completion.

Why Choose JustBoilers

GasSafe Registered

All our engineers are Gas Safe Registered

30 Years’ Experience

More than 30 years of experience in the boiler maintenance industry

No Call Out Charges

We offer fair, transparent pricing

Competitive Industry Rates

We have very competitive boiler installation prices

Landlord gas safety certificate law in London

A landlord has a general duty to ensure the property they rent out is fit for purpose. This includes ensuring their property is gas safety checked annually.

The law extends the definition of the tenant to any person occupying a property under a contract. Hence it even applies to domestic staff with a right to sleepover.

A landlord, and any other person has a common law duty to take reasonable care not to cause harm to another. Hence a rented property must be safe and in good working order.

This principle kicks in whenever a person undertakes an activity which could reasonably harm someone else either physically, mentally or economically.

This burden of duty extends to taking reasonable steps to ensure a gas installation on a tenanted property is safe. The Gas Safety (Installation and Use) Regulations of 1998 prescribe a valid gas safety certificate as the bare minimum.

Therefore not having this certificate when something goes wrong with the gas makes a compelling argument the landlord was negligent.

UK law is very clear on what happens next. If the affected tenant can prove the landlord failed in their duty to care, or breached their obligations under the regulations then they could be fully entitled to sue for all their damages.

Having a valid gas safety certificate may provide a sufficient defence all things being equal.

Find a Gas Safe Engineer in London

Our engineers are all in good standing on the Gas Safe Register. Moreover they are specialists because we do boilers and what’s connected to them, and nothing else. We choose our people carefully to make sure they understand the frustrations of not having decent hot water.

You can rest assured our caring people leave nothing to chance, and take all waste material with them when they leave. Speak to us first if you have a troublesome boiler. Or just want to improve your life with more hot water.

We carry out boiler repairs and boiler installations, and provide gas safety certificates all over London. Our team covers North London, East London, South East London, South West London, West London, North West London and Central London.

Our free call-back service is just a click away. You can also get in touch by sending us an email.


A gas safety certificate confirms that the system, and any connected appliances are working at the right operating pressure. It will also state that the appliances are burning correctly because there is adequate air supply.

With this in mind, a basic gas safe inspection does not include pipework and vents, although these should ideally be inspected at the same time.

A gas safety certificate is an official government document that only a person listed on the Gas Safe Register may sign off. You may hear gas engineers referring to it as a ‘CP-12’. This name is just an echo from the past when CORGI was the controlling body for UK gas safety, and they used a form numbered 12 for the purpose.

The Gas Safe Register enables a consumer to check whether their gas engineer is competent to sign a ‘CP-12’ under the law. The register enables consumers to search for service providers, and verify they and their engineers are compliant – which we are.

Always ask to see a gas engineer’s gas register card before allowing them onto the premises. The photo identifies them and confirms the start and expiry dates of their registration.

The other side confirms the scope of work they are qualified to do, including whether they have the authority to issue a gas safety certificate in London.

The Gas Safety (Installation and Use) (Amendment) Regulations of 2018 came into force on 6 April and simplified the process slightly.

It takes a more flexible line by allowing landlords to arrange their safety checks in the final two months of expiry of the current one. This eliminates the last-minute scramble that made the old regulation seem unnecessarily onerous.

A landlord’s gas safety certificate in London is technically similar to a standard one because it also calls for flues and appliances to be inspected.

However in this case tenants have a right to their own copies within 28 days of completion. Moreover, a landlord must provide copies to new tenants before taking occupation.

Failing to have a valid gas safety certificate in London, or failure to provide them are serious breaches of the letter and the spirit of the law. Especially since these certificates contain the results of all previous inspections too.

In our experience, responsible landlords welcome the peace of mind these documents provide. Completing the process should be simple after you find a registered gas engineer in your area of London.

We don’t believe in cutting corners but we also believe in offering fair prices. Visit our fees and rates page and you’ll find everything set out clearly for you.

We charge a fixed price of £85 + VAT for a gas safety certificate, and not a penny more for that basic service. If we find something in need of repair – and you want it done – then we’ll negotiate our best price as laid out in our schedule of rates and fees.

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