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Last updated: 9th April, 2024


Can I Install My Own Boiler?

Can I Install My Own Boiler?

Key takeaways

  • All of our iHeat engineers are Gas Safe registered, meaning they're fully trained and equipped to deal with any heating situation.
  • Attempting to self install a boiler can be very dangerous due to potential risks involving gas, electricity and water.
  • Boiler installations are subject to specific safety regulations and building codes to ensure safety.

When it comes to installing a new boiler, less informed homeowners may consider taking a DIY approach to save costs. However, it's essential to understand the potential risks and complexities involved in boiler installation.

At iHeat, we strongly advise against attempting to install your own boiler. In this blog, we will discuss why it's best to leave boiler installation to the experts and highlight the benefits of choosing a trusted company like iHeat with their team of Gas Safe registered engineers.

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Why Use Professionals?

Safety First

Installing a boiler involves working with gas, electricity, water, and complex plumbing systems. Without the necessary knowledge, skills, and experience, there is a significant risk of accidents, leaks, or improper installations. 

Gas-related work, in particular, can be dangerous and even life-threatening if not handled correctly. 


iHeat prioritises safety and ensures that every installation is carried out by Gas Safe registered engineers, who have undergone rigorous training and certification.

Compliance with Regulations

Boiler installations are subject to specific regulations and building codes to ensure the safety of occupants and the proper functioning of the system. 

Professional installers are well-versed in these regulations and will ensure that your boiler installation meets all the necessary requirements. 

By choosing iHeat, you can have peace of mind knowing that your installation will comply with all relevant regulations and standards.

Expert Knowledge and Experience

Boiler installation is a complex task that requires a deep understanding of heating systems, plumbing, electrical connections, and controls. 

Professional installers possess the knowledge, expertise, and experience to handle various types of boilers and tailor the installation process to your specific needs. 

They can assess your property, recommend the most suitable boiler, and ensure proper sizing, pipework, and venting.

Warranty and Guarantees

Many boiler manufacturers require professional installation by certified engineers to validate their warranties. By attempting a DIY installation, you may void the warranty, leaving you responsible for any future repairs or replacements.

iHeat works with reputable boiler brands and provides warranty coverage. This means that if any issues arise, you can rely on our team to handle them promptly and efficiently.

Time and Cost Savings

While it may seem tempting to save money by installing your own boiler, it's important to consider the potential risks and expenses that can arise from a botched installation. 

Mistakes can lead to costly repairs, energy inefficiency, or even the need for a complete reinstallation. 


By choosing iHeat, you can avoid these risks and enjoy the peace of mind that comes with professional installation. Our experienced engineers work efficiently, saving you time and ensuring that your boiler operates optimally from day one.

What is a Gas Safe Engineer?

A Gas Safe Registered engineer is a heating engineer who has all of the training and qualifications to work with gas appliances and installations and is on the Gas Safe Register. 

Under the Gas Safety (Installation and Use) Regulations 1998, in order for an engineer to legally undertake gas work that is within the scope of the Regulations, they must be on the Gas Safe Register. 

Why Do Engineers Need to be Gas Safe Registered?

Unfortunately, in England and Wales there are over 60 deaths from carbon monoxide poisoning every year. As a result, the government set up the Gas Safe Register (formerly known as CORGI), which states that by law, all gas engineers must be registered as Gas Safe. 

If anyone, even a trusted electrician or decorator, offers to mend your boiler without being on the Gas Safe Register, they are breaking the law and could cause a potentially fatal accident.

iHeat Gas Safe Registered Engineers

At iHeat, we take gas safety very seriously, ensuring that all our boiler installers are Gas Safe Registered.

We also offer annual boiler servicing* to make sure your boiler and the whole system including pipework is running safely. 

For your peace of mind, we make sure all our installers display their Gas Safe card upon arrival so you can be sure the work will be done diligently and safely.


*We only service boilers installed by iHeat.


When it comes to boiler installation, safety, compliance, and expertise should be your top priorities. Attempting a DIY installation can lead to hazardous situations, legal issues, and costly mistakes. 

At iHeat, we strongly recommend entrusting your boiler installation to our team of Gas Safe registered engineers. 

By choosing iHeat, you benefit from our extensive knowledge, experience, and commitment to safety, compliance, and customer satisfaction. Don't take unnecessary risks – let the experts at iHeat handle your boiler installation needs.

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Frequently Asked Questions

Can I Legally Install My Own Boiler?

In the UK, the installation of a gas boiler must be carried out by a Gas Safe registered engineer. This is a legal requirement to ensure safety standards are met. Installing a gas boiler yourself without the proper qualifications and registration is illegal and poses significant safety risks, including carbon monoxide poisoning and explosions.

Can I Install a New Boiler Myself?

For gas boilers, you cannot legally install it yourself unless you are a Gas Safe registered engineer. For electric boilers, while there is no legal requirement for Gas Safe registration, the work still needs to comply with Building Regulations, and it's highly recommended to have a qualified electrician or heating engineer carry out the installation to ensure it's done safely and correctly.

Can I Service a Boiler Myself?

Servicing a gas boiler yourself is not recommended and, in most cases, would be illegal if you're not Gas Safe registered. Regular boiler servicing involves safety checks and adjustments that require professional knowledge and tools. Incorrect servicing can lead to serious safety issues.

Can a Non Gas Safe Engineer Fit a Boiler?

No, a non-Gas Safe registered individual cannot legally install a gas boiler in the UK. Only engineers on the Gas Safe Register are legally allowed to work on gas installations and appliances to ensure they meet safety standards.

What Can I Do If My Boiler Is Not Registered with Gas Safe?

If your boiler was installed by someone not registered with Gas Safe, it's crucial to immediately stop using the appliance and contact a Gas Safe registered engineer to inspect the installation and make any necessary corrections. You should also report the individual or company who carried out the installation to Gas Safe, as they are operating illegally.

Can You Install Boiler Yourself UK?

For gas boilers in the UK, you cannot legally install the boiler yourself unless you are a certified and registered Gas Safe engineer. For electric boilers, while DIY installation may be technically possible, it's advisable to have the installation done by a qualified professional to ensure safety and compliance with building regulations.

Can a Handyman Install a Boiler?

A handyman, unless they are specifically Gas Safe registered, cannot legally install a gas boiler in the UK. Even for electric boiler installations, it's best practice to use a qualified heating engineer or electrician to ensure the work is done safely and up to the required standards.

Stephen Day profile photo
Article by
Stephen Day | Co-founder
Gas Safe registered and FGAS certified engineer with over 20 years experience in the heating and cooling industry.