Best Boiler Installation Companies

If you are researching to find the best boiler installation companies and local gas engineers, you are in the right place.

Our team has researched and analysed all the top-rated Gas Safe Registered heating engineers that can safely install a new boiler to keep your home warm.

When looking for a new boiler installed, choose the best boiler brands to supply your combi boiler.

Expert Boiler Installers

But more importantly, a reputable and trusted gas engineer must carry out the boiler installation for your new heating system.

Our best boiler installation company’s guide explains everything you need to know about choosing the top-rated heating engineers to install your new combi boiler or replace existing gas boilers.

Who Are the Best Boiler Installers?

Our research shows the best-rated boiler installation engineers in the UK.

  1. Iheat

Iheat is a market-leading boiler installation company where you can get a fixed price online today, with installation as quick as tomorrow and 0% finance available for up to 24 months.

iHeat is our top pick due to unbeatable warranty lengths on huge boiler brands like Worcester boilers, Alpha Boilers, Ideal Boilers and Viessmann boilers.

iHeat’s main difference from the other online boiler companies is that they offer a wider range of boiler replacement options to buy online.

The installation prices are competitive, and with local installers nationwide throughout the UK, you are assured of getting the best boiler deals in April 2024.


They can offer a 10-year guarantee for any of their new boilers with a price match guarantee for any like-for-like quotes.

iHeat is rated 4.8 out of 5 on TrustPilot, so you know that they will provide you with quality boiler installations.

  1. Boxt

Described as the ‘Uber of boiler installers’, Boxt is an innovative boiler installation company based in Leeds.

Boxt sets itself apart from its competition via its multi-award-winning technology platform. Their media platform allows clients to select and purchase home heating packages at a fixed rate using their mobile or laptop.

Gas Safe engineers can use the BOxt app to find local jobs that match their qualifications and skill level. Every Boxt installation is audited by their in-house Compliance Team, so they can assure their customers that every installation will be completed to the utmost standards.

They have won various awards, including the Marketing New Thinking Awards’ Best Use of Tech award and the Marketing Society Excellence Awards’ Best New Brand award.

They have 9.9 out of 10 scores from Trustpilot, so if you are looking for a reliable boiler installation company in April 2024, Boxt might be your team.

  1. Heatable

Heatable is a boiler business set up by two brothers, based in North West England.

They set up Heatable v1, a price comparison website where potential clients can get fixed quotations for new boilers by local installers.

Heatable sets the costs, not the installers. Heatable also is in charge of processing customer orders and providing quality customer support and aftercare.

The engineers undergo a strict onboarding process that ensures Heatable will use only the best installers.

Heatable has over 500 installers across the UK, and their innovative app has made buying a boiler as easy as calling an Uber.

They have partnered with numerous impressive brands, such as Google, Bosch, and Viessmann.

If you want a company that can offer a price promise, conversation quoting, and two years of 0% APR, get in touch with Heatable today!

  1. The Green Boiler Company

Based in Glasgow, the Green Boiler Company is a family-run business that provides high standards and quality customer service.

They install new combi boilers for as low as £1,195 with a full warranty. Not only that, but you don’t have to worry about dealing with a salesman as all of their quotes are supplied by their owner.

The Green Boiler Company has a fixed price guarantee, so what you are quoted is what you will pay – there are no hidden fees.

As a company, The Green Boiler Company are gas safe, and their installers are individually gas safe approved. So, you can rest assured that your installer has the correct qualifications for the job.

With over 20 years of experience in the central heating industry, The Green Boiler Company are expert boiler installers.

Some of their services include installing a new central heating system, a new boiler, and plumbing services. Contact The Green Boiler Company now for a fixed quote.

  1. ERG Heating & Gas Engineers

At ERG, they are committed to supplying only the highest quality heating repair and maintenance services.

ERG offer 24/7 services, meaning they can help you with any problems related to your boiler, no matter what day or time. They even offer an emergency call-out service for those who need urgent help.

With their installers nationwide across the UK, a repairman could be with you in no time.

They work with commercial and residential properties, providing maintenance, repair, and installation services.

You can find a range of glowing 5-star reviews from previous ERG Heating clientele who were more than happy with their services and results.

Contact ERF Heating and Gas Engineers if you are based in the UK and need help with your boiler.

  1. Add Heat

Add Heat is a family-run business based in Cheshire that installs over 500 boilers annually across the UK. They have over 25 years of experience in the heating industry.

As experienced tradesmen, they offer expert advice and quality services to every customer they take on. They ensure that every client is 100% satisfied with the results of their work.

They have been accredited as Gold-level Worcester Bosch Accreduared installers. So, their reputation proceeds them, and you can be confident that they are a quality company.

Not only can they provide competitive prices, but they can also offer energy-saving advice to help you save money on your monthly energy bills.

All of their employees are gas sage or OFTEC engineers, so your heating system is in the hands of the experts.

Get in touch with Add Heat for your gas boiler, oil boiler, underfloor heating and plumbing services.

  1. Boiler Team

Boiler Team have engineers based in the South of England and Wales that can help customers with various services, including installation, repair, and maintenance.

As they install many boilers, they can offer discounted prices to their clients, making them an affordable company to work with.

They have a 24/7 customer service department and an emergency call-out service, and they can offer next working day installations.

All their boilers come with a ten years warranty, and you can pay across 60 months at 4.9% APR.

Boiler Team only hires Gas Safe, OFTEC engineers and NICEIC electricians to ensure they only employ the best possible installers.

Are you based in South England or Wales? Contact Boiler Team today for a range of heating system services.

  1. British Gas

British Gas are a well-known boiler and gas company that has been running for over 200 years.

As the UK’s leading boiler installer, they are experts in all things energy, so you can relax knowing your boiler is in safe hands.

They have set up the British Gas Energy Trust to help individuals struggling to pay their energy bills. The trust provides access to grants and qualified debt advice.

You can also sign up for British Gas Rewards, a programme that allows you to access exclusive offers, discounts, and giveaways.

All of their boilers are A-rated for energy efficiency, and they are affordable. There are options for various budgets, with each installation receiving a 5-year warranty.

Get in touch with British Gas if you are looking for affordable boilers or ways to save on your energy bills.

  1. Boiler Buzz

Boiler Buzz is accredited by Worcester Bosch and Vaillant and is a leading expert in the boiler industry.

They offer competitive trade prices to their customers, making them an affordable option. They also offer no deposit finances so that you can make the payment across 120 months at a 9.9% APR.

With a 12-year warranty and in-house Gas Compliance Managers monitoring each installation, you can have peace of mind that a quality job is being carried out.

Boiler Buzz can offer speedy next-day deliveries across the UK, so you know who to call if you need a boiler in a hurry.

They are regulated and supported by companies, including Barclays, Gas Safe, APHC, and Refcom.

To get a new boiler price from a team of heating experts, contact Boiler Buzz.

  1. E.ON Energy

With around 3.8 million clients in the UK, you can see why E.ON Energy is one of the leading energy providers.

E.ON have successfully obtained multiple ISO accreditations, such as Quality Management System, Environmental Standard, and Energy Management awards.

They have a core focus on creating sustainable solutions for powering homes, as they aim to reduce carbon emissions and support the environment.

Their services include boiler installation and repairs, solar installation, and smart meter fittings.

E.ON Energy customers get access to 100% renewable electricity at no additional cost!

If you are looking to save on your energy bills and want to work with a respected company, get a fixed price from E.ON now.

How to Choose the Best Boiler Installer

There are many factors to consider before deciding which boiler installation company best suits your unique requirements.

Some factors that you should research before settling on your final installer include:


Customer testimonials and reviews are important when choosing which boiler installation company would be best for you.

Reviews can highlight how trustworthy the company is as the reviews tend to be written by previous clients dealing with the company in question.

You can often find the truth about a company by the reviews their previous customers have left, so read a few to get a clear picture of their services.

Keep an eye out for reports concerning their customer service, quality of work, punctuality, customer aftercare, and affordability.

Brand Reputation

Brand reputation is important as you should check the credibility of the company you are about to engage with for work.

You can assess a brand’s reputation in many different ways; one way to check how a brand is perceived is to look at its social media channels.

You can review their client engagement and how they deal with their current customers in the comments on their socials.

Another important thing to check is the company’s website. Ensure the website is secure with the safety padlock displayed in the search tab.

The company’s website should provide you with many important details, such as any awards they have won, how many years of experience they have, and their accreditations.


It is useful to check how many years of experience the company you are considering working with has in their specialised industry.

If a company has many years of experience, this tells you that they have been operating for a long time.

Any company that can operate for many years must do something right to stay afloat. In contrast, companies with less experience may just be starting in the industry and may not be as skilled.

Many companies will list how many years they have been operating on their websites. However, if they don’t, you can check on Companies House to see when they were incorporated.

Quality of Boiler Installed

Another important factor to consider is the quality of boilers being installed, as you only want the best to save you spending money down the line on repairs.

Most boiler company websites will mention which boiler brand and model of boilers they offer. You can check the quality of these products with a quick Google search.

Many products are reviewed online, and you can check the guarantees and warranties attached to the boiler you want to install.

There are many affordable yet high-quality boilers, so check that the cheap boilers still meet industry standards.

Boiler Costs

While many companies promote themselves as having competitive and affordable rates, it is important to check that this is true.

You should obtain quotes from more than one company to compare and see which will match the lowest boiler prices.

Many companies offer price matches on like-for-like quotations and trade prices.

So, to ensure you are getting the best boiler prices, do your due diligence and reach out to a few companies to obtain quotations that you can compare.

Why is Boiler Efficiency Important?

An efficient boiler can help you save on your heating bills and reduce carbon emissions.

Will 17% of the UK’s carbon emissions come from heating homes? Since 2005, boilers have to have a minimum of 92% efficiency.

With a goal of zero net carbon emissions in 2050, monitoring boiler efficiency is a crucial step toward lowering the Uk’s carbon footprint and helping improve the condition of the environment.

Should I Use an Online Boiler Company?

There are many online boiler quotes where you can get a fixed price to have new boilers in the UK.

The website we are talking about is where you buy a boiler online and book someone to install it for you, all at a few clicks of your mouse.

Here are the best three online boiler companies to use:

  1. iHeat
  2. Heatable
  3. Boxt

With next-day boiler installation, the iHeat brand supply and install all the top boiler brands to suit your budget.

Online companies are at the forefront of the modern era, so more and more services and products will be available to purchase online rather than in-store.

These innovative companies are ahead of their time; the online process is quick, easy, and affordable! Not only that, but they remove the need for salesmen.

The online companies still have customer service advisors, so you can ask all the questions you want before making your purchase.

What Type of Boiler Should I Get?

There are three main types of boilers, combi, heat-only, and system, and there are reasons why you should consider each one.

Combi boilers are most appropriate for small homes or flats, as they are best suited for properties with low water demand. They can supply the house with hot water on demand at the flick of a switch.

Heat-only boilers are an appropriate option for larger homes with high water demand. They are typically installed in a property’s loft, with a cold water storage tank and a hot water cylinder.

System boilers are also suited to larger properties with poor water pressure but a high water demand. For example, if your home has multiple bathrooms that may be used simultaneously, this boiler may be the best option.

So, the type of boiler you should get depends on your unique living situation and the kind of property you reside in.

Contact one of the popular boiler companies from our list above to learn which boiler would be best for you.

How Much Does a Combi Boiler Installation Cost?

On average, a combi boiler can cost around £700 to £3,500 to install in the UK.

There is a range of factors that impact the price of a combi boiler, including:

  • The brand of boiler to be installed.
  • The model of the boiler to be installed.
  • The boiler installation company that is used.

To find an affordable boiler cost, get in touch with one of the top boiler companies listed above!

How Much Does a Heat Only Boiler Installation Cost?

A heat-only boiler installation would typically cost between £500 to £2,500 to install in the UK.

Heat-only boilers are slightly cheaper than other options, such as combi boilers or system boilers.

Factors like brand, model, size, location, and number, will influence how expensive a heat-only boiler installation will be.

To receive a boiler quote today, contact one of the boiler companies listed above that offer online boiler quotes!

How Much Does a System Boiler Installation Cost?

To install a system boiler in the UK would cost around £700 to £3,000, on average.

System boilers are perfect for larger homes as they can supply a constant stream of hot water, so as they are larger than a heat-only boiler, they tend to be more expensive.

Factors like the brand, model, and installation company will impact how much you might have to pay for a system boiler installation.

Searches Associated With Best Boiler Installation Companies

Here are the most common searches related to top-rated boiler installers.

  • UK boiler installation companies
  • Online boiler company reviews
  • The best company for new boiler installation cost
  • UK boiler company
  • Gas safe registered engineers
  • Specialist new boiler installation company

Frequently Asked Questions

Do Boiler Installers Offer Warranty?

Most boiler installers will offer warranties on their boilers of varying lengths. On average, boilers tend to have at least a 5-year warranty.

Some installers offer a generous 10-year warranty on some of their boilers, whereas others might provide a measly two years.

It is important to check the warranty offered before you purchase a boiler or commit to a boiler installation firm.

Can You Install a Boiler Yourself?

You can install a boiler yourself; however, it is not always advisable, as boiler installations can be complex and costly to repair if any mistakes are made.

Successfully installing a boiler requires a high level of skill and expertise, so if you are considering installing one yourself but have no prior experience in the heating industry, you might want to reconsider.

While installing a boiler yourself might save you money initially, any mistakes you might have made can be costly. It may save you money and time hiring a professional.

Can I Get a Boiler on Finance?

Yes, many boiler companies offer finance for their boilers, whereby you pay a fixed amount each month rather than the full amount upfront.

Financing your boiler can be a helpful way to pay, as boilers can be quite costly. So, many homeowners choose to spread the cost of their new boiler across a few months.

Various boiler companies, such as AddHeat, BoilerBuzz, and Boiler Team, offer a no deposit finance option, which allows their customers to buy now and pay later.

Do You Tip Boiler Installers?

It isn’t a requirement to tip your boiler installers. However, if you are happy with their work you might be obliged.

Will a New Boiler Reduce My Heating Bills?

If your boiler is over 10-15 years old, it may not be as efficient as when it was first installed.

Your old boiler may be functioning at 60% efficiency, whereas new boilers have to meet a standard of 92% efficiency.

Installing energy-efficient boilers can help to reduce your heating bills significantly. For example, fitting a new combi-boiler could save you as much as 35% on your current energy costs.

What Should Be Included in a Boiler Installation Quote?

Many factors should be included in a correctly itemised boiler installation quotation. These include:

  • The brand and model of the boiler that is to be installed.
  • The price of the being boiler installed.
  • The cost of any additional heating controls.
  • The location where the boiler will be installed on your property.
  • The type of cleaning heating system requires.
  • The cost of any labour required for the installation.
  • The cost of any post-installation services.
  • Explanation and information regarding the warranty.

If your quotation does not include any of these factors, follow it up with the boiler company. You want to have as much information as possible before committing and paying for a boiler installation with one company.


Every installation company included on our list of the best boiler companies has passed our assessment process, including credit, reference and background checks.

We have reviewed and assessed every specialist installation company, and you can read reviews left by their previous customers, which our in-house moderators have verified.

Make sure to gain quotations from more than one company and do your due diligence, as there may be one company which perfectly suits your unique preferences.

Full List of Best Boiler Installation Companies