What is the Gas Safe Register?

Key takeaways

• Homeowners can check engineer credentials on the Gas Safe Register website.

• Only engineers listed on the Gas Safe Register should install or service gas appliances. This is crucial for preventing carbon monoxide leaks from poorly installed or maintained appliances.

• Landlords and property owners should ensure gas appliances are regularly serviced and maintained by qualified professionals to comply with safety regulations.

What is the Gas Safe Register?

The Gas Safe Register is the official gas registration body in the United Kingdom. It upholds gas safety and establishes best practices to ensure the appliances in your home are installed, maintained, and serviced by qualified professionals that follow health and safety standards.

The Gas Safe Register replaced the CORGI gas registration scheme in 2009. By law, all authorised gas engineers in the UK must be listed on the register.

Why does the Gas Safe Register matter?

As well as being a comprehensive directory for qualified engineers who can safely work on gas appliances, the Gas Safe Register is a regulatory body that plays an important role in establishing gas safety guidelines and regularly inspecting the work being carried out by engineers.

It also acts as a watchdog for investigating reports of malpractice, such as non-registered engineers who may be carrying out unsafe and unlawful work.

By choosing a Gas Safe registered engineer, you're not only ensuring that the work in your home complies with strict safety standards, but you're also taking a crucial step to prevent gas leaks, fires, and carbon monoxide poisoning.

How do I check if my boiler is registered Gas Safe?

If a Gas Safe registered engineer installed a boiler in your property in the last few years, you should have received a Building Regulations Compliance Certificate in the post within 28 days of having it installed. As well as certifying that your boiler is Gas Safe registered, this document also informs your local authority about your new appliance.

If you don’t have the Building Regulations Compliance Certificate, you can request a new one, either online or by calling 0800 408 5500 (choose option 1). It costs £8.10 to order the certificate.

What do I do if my boiler isn't Gas Safe registered?

The first course of action is to reach out to the engineer to have the appliance registered retrospectively. In cases where the engineer is no longer available or the company has ceased operations, it's important to contact another a qualified Gas Safe engineer to inspect and officially register your boiler.

You can search for Gas Safe registered engineers via the Gas Safe Register website - enter your postcode to find engineers and companies in your area.

Can I DIY my own gas appliances?

There's a good reason why DIY on gas appliances is not advised: it's dangerous to carry out the work yourself. Only a Gas Safe Registered engineer has the expertise and authorisation to carry out gas work and correctly comply with safety standards. Unauthorised, unprofessional work can lead to severe hazards. Moreover, it can invalidate your home insurance, leaving you unprotected and at risk in the event of a problem.

What Gas Safe rules must landlords follow?

Landlords have a legal responsibility to ensure the safety of their tenants. This includes maintaining gas appliances and conducting annual gas safety checks by a Gas Safe Registered engineer. Tenants must be given a copy of the Gas Safety Record within 28 days of the inspection.

As a landlord, it’s a smart idea to take out dedicated landlord boiler cover so that any fixes can be performed quickly and without having to bear a hefty cost in the process. Comprehensive cover often includes the cost of registering the boiler as well as annual servicing, making it a smart investment.

Additionally, many boiler cover plans include a free annual service to keep your boiler in tip-top shape.

How do I find a qualified Gas Safe engineer?

You can find a certified Gas Safe engineer by using the Gas Safe Register’s online “Find an Engineer” service (www.gassaferegister.co.uk). Enter your postcode or address to find a list of authorised engineers and businesses in your area. You can refine your search by selecting the fuel type and appliance type, as well as whether you require servicing for domestic or commercial appliances.

Check which appliances your engineer is qualified to work on

Not all Gas Safe engineers are qualified for every type of gas appliance. It's crucial to check the engineer's official Gas Safe ID card to ensure they have the right qualifications for the specific job you need them to do. This verification process protects you and ensures the safety of the work being carried out.

Check if your engineer is Gas Safe Registered

Before any work begins, make sure to verify that the engineer or business is Gas Safe Registered. You can do so using the Gas Safe Register’s online tool. To check a business, enter their registration number (1-6 digits), business name or business phone number. To check an engineer, enter their name or 7-digit licence number – you can find this on their Gas Safe ID card.

What additional services and protections does the Gas Safe Register offer?

The Gas Safe Register offers a free gas safety check reminder service. Sign up at StayGasSafe.co.uk and they’ll send you a reminder text or email when it’s time for your yearly gas safety check.

How much is a gas safety check?

At the time of writing (March 2026), the average cost of a gas safety check – also known as Gas Safety Certificate – is around £80. This involves a Gas Safe engineer inspecting your gas appliances, fittings and chimneys to ensure they remain compliant with safety standards.

How do I make a complaint about a Gas Safe engineer?

If you're dissatisfied with the work or service of a Gas Safe engineer, you can lodge a complaint directly with the Gas Safe Register. It’s important to notify the Gas Safe Register of any unregistered engineers, as they may be operating illegally and putting lives at risk.

Do I need a Gas Safe certificate to sell my home?

While a Gas Safety Certificate is not a legal requirement for selling a home, it may be requested by solicitors. A recent service within the past 12 months should provide the necessary certificate, which can smooth the sale process and offer reassurance to potential buyers about the safety of the home's gas appliances.