Green Central avatar

Written by

Last updated:

Best Boiler Installers & Gas Boiler Installation Companies Online

Best boiler installation companies for gas boilers online

When it comes to the best boiler installers, it’s important to research and compares different boiler installers in your area to find the one that best suits your needs.

It is always a good idea to check for customer reviews, certifications and licensing, warranty and servicing plans and pricing.

Get a fixed price online in just 20 seconds – Click here

In addition, a good boiler installer should have a team of qualified engineers who are knowledgeable and experienced in installing and servicing boilers. They should also use high-quality products and equipment and provide excellent customer service.

Thankfully, we researched the best boiler installers and compared them to bring you the top boiler installation companies available in 2024.

In conclusion, when looking for the best boiler installers, it’s important to consider their experience, licensing, customer reviews, pricing, and warranty/maintenance plans.

By doing your research and choosing a reputable and experienced installer, you can ensure that your new boiler will be installed correctly and safely, giving you reliable and efficient heat for years to come.

Hot Deals Icon

Which Boiler Installation Company to Choose?

Some of the top boiler installers in the industry include Viessmann, Worcester Bosch, Vaillant, Ideal Boilers and Baxi. These brands are known for their quality products and have a good reputation in the market.

Are you looking for the best boiler installation companies for gas boilers? If that’s the case, you’ve come to the right place! This blog will look at the best boiler installation companies for gas boilers available online. We’ll also go over why these companies are the best, as well as what to look for when choosing a company to install your new boiler.

At Green Central we only install the best boilers and use registered and vetted installlers to save you time and money. If you are unfortunate enough to need to replace your old boiler with a new one for whatever reason, then you may have come across a new type of boiler website.

The type we are talking about is where you buy a boiler online and book a local Gas Safe installer to fit it for you, all at a few clicks of your mouse.

In our review we have reviewed the best gas boiler installers online, however, if you want to save reading this, you can get a fixed price quote and book a local installer online now in minutes.

Get a fixed price online in just 20 seconds – Click here

Continue reading to learn more about the best boiler installation companies online!

Hot Deals Icon

How do the best gas boiler installers work?

working tools

In today’s world of fast consumerism, simply choosing your desired boiler online and booking someone to come to your home and install it, potentially the next day, seems like a dream come true. Here we look at some of the new boiler installation companies offering up such services.

All of the following websites we look at have a very similar look and feel about the site. They will ask you a series of questions about your boiler, your home and other relevant information to help give you a fixed boiler installation cost for a new boiler. In order for this to be accurate, you must be as truthful as possible with your answers.

Let’s take a look at some of the best boiler-buying sites at the moment offering quick, fixed-price installation from the best boiler brands, all in a matter of minutes.

Comparison of the top boiler installers and companies

When it comes to finding the best boiler installers, it’s important to consider several key factors. Here are a few things to look for when choosing a professional to install your new boiler:

  1. Experience: Look for a company or individual with a proven track record of installing boilers. The more experience they have, the more likely they are to do the job correctly and efficiently.
  2. Licensing and certification: Make sure the installer you choose is licensed and certified to work on boilers in your area. This will give you peace of mind that they know what they’re doing and are up to date on the latest safety regulations.
  3. Customer reviews: Look for customer reviews of the installer you’re considering. If they have a lot of positive reviews, that’s a good sign that they do quality work and have satisfied customers.
  4. Pricing: Get quotes from multiple installers to compare prices. Keep in mind that the cheapest option may not always be the best, but you should also be wary of an installer that is significantly more expensive than the others.
  5. Warranty and maintenance: Find out what kind of warranty and maintenance plan the installer offers. A good warranty and maintenance plan can give you added peace of mind and protection for your investment.

The following are the things to consider while comparing different boiler installation companies:

  • Fixed pricing.
  • Warranty length.
  • Availability of boiler cover and workmanship warranty
  • Qualifications of installers.
  • Customer service
  • Next-day installation availability
  • Customer reviews
  • What boiler brands do they offer?
  • Hydrogen-ready options?
  • Radiator and water tank installation options.

Just keep in mind that this normally requires complete openness from you at the time of the estimate, such as supplying accurate images of your current boiler, etc.

Although they do require you to answer a variety of questions, this is usually not a problem, it is something to keep in mind.

Which boiler manufacturers delivered the greatest results? For a complete list, go to our guide to the top boiler manufacturers.

Which boiler installation companies provide a fixed price?

boiler quote / example of Boiler Centrals fixed price offer
Example of Boiler Centrals fixed price offer

You should carefully consider if the boiler installation company has a fixed price since you don’t want them to raise the price after arriving at your house and realise that more labour or equipment is needed than originally estimated.

The good news is that most well-known boiler installers, including Boiler Central, Boxt, Warmzilla and iHeat, provide a fixed-price quote.

What boiler installation company offers the longest warranty?

As stated above, the warranty should be extended as much as possible. This will ensure that you are not responsible for any repair costs or call-out charges.

The length of the warranty is a sign that your boiler is of high quality. However, there are also conditions of coverage. These include an annual boiler service and registration within 30 days of installation.

We found that some gas boiler installation companies offer a 10-year manufacturer’s warranty. But we found the best installation company with the longest warranty goes to Boiler Central which offers a 12-year warranty with an additional 2 years from the manufacturer.

Be aware that these extended coverage periods are provided by boiler platforms, and not the manufacturers. Some people have concerns about how long the boiler will last.

Find out how long boilers last here.

Are all boiler installers offering a boiler cover?

Compare Boiler And Heating Cover, Boiler Cover Plans in the UK

Some boiler installers don’t offer boiler coverage. This is not a problem since you can easily get separate insurance with a third-party provider.

Boiler Central, British Gas, Boxt, and British Gas are some of the boiler installation companies that offer boiler installation as well as boiler coverage.

Keep in mind that boiler coverage is not necessarily worth the cost. The real question is whether it is worthwhile.

Which? (the UK’s consumer organization) is an example. According to Which? “boiler coverage is more cost-effective than paying for repairs as they happen”.

Boiler installation companies that are the best offer a workmanship guarantee

workmanship warranty

An online boiler platform that has a good reputation is a great option because they care about their customer’s reviews and feedback.

The majority of boilers come with a minimum 12-month workmanship warranty. If you have any problems with your boiler, such as a leak, within the first year of installation, they will repair it free of charge. They will fix any leaks free of charge, to avoid negative reviews.

We compared all the largest gas boiler installers in the UK and found that all offered a workmanship guarantee.

Are their boiler installers qualified to work?

We are sure they are, based on our tests.

You may not be aware that in order to install or fix a gas boiler in the UK the engineer must register with Gas Safe.

Online boiler platforms offer registration details, e.g. You will need to provide a gas-safe number for your safety, but you can ask for it on the day of installation.

Ask to see the Gas Safe ID card. These cards are required for every Gas Safe installer. You should be on the lookout for these:

  • The engineer’s picture.
  • Date of expiration.
  • A registration number (7 digits long).
  • Holograms for security
  • Name of the business
  • They are capable of servicing gas appliances (make sure it has a gas boiler).
Hot Deals Icon

Top 5 best boiler installation companies online

#1 Boiler Central

Boiler Central - best boiler installers

A brand new company to the game, Boiler Central is our top pick due to unbeatable warranty lengths, such as 12-years on most Worcester boilers and Viessmann boilers.

Boiler Central’s main difference between the online boiler companies is that they offer a wider range of boiler replacement options to buy online.

Boiler Central is an awesome choice for those looking for dependable and cost-effective boiler installations. Their expert team and experienced engineers provide outstanding customer service and workmanship. They have a wide range of products to suit any spending plan, as well as a lot of useful advice to ensure you get the right boiler for your needs.

Their competitive prices and quick delivery times make them an excellent choice for anyone looking for a quality boiler installation. I would strongly recommend Boiler Central to anyone looking for a dependable, cost-effective boiler installation.

A Wider range of boiler choice

Some of the sites we are going to look at will only provide you with the option of certain manufacturers, eg Worcester Bosch or Viessmann. Boiler Central, on the other hand, will provide you with super-competitive quotes from other top boiler manufacturers such as Ideal, Baxi, Glow Worm, Vokera & more.

Excellent online boiler installation information for customers

Sometimes there can be too much choice when it comes to buying a boiler but there is a wealth of information provided by the experts at Boiler Central for you to be able to make up your mind. This in part is helped by the questions asked prior to providing you with your new boiler quotes.

Looking for the best combi boiler available? Compare prices online below:

The quickest online boiler installation survey questions

Boiler Central has the fewest questions asked to get a fixed online boiler installation price. Some of the other sites have what we feel are irrelevant questions and do not compare boilers as well.

Boiler Central purely ask for the bare essentials which would affect any boiler costs and installation prices, to give you the best types of boilers suitable for your home.

Low and competitive boiler prices

Compared to the other online boiler companies Green Central offer some of the lowest prices for boiler replacement.

Boiler Central come out best on prices for Viessmann boilers, which is great as the Viessmann boiler range is regarded as one of the best boiler manufacturers.

Boiler Finance option and an online booking system

You may have to pay a small deposit to set up your boiler finance but you can get your boiler installed right away, and then pay it off over a number of years if you don’t have the money right away.

All in all, we highly recommend Boiler Central for everything. From the ease of use right down to the important stuff, the price, they are a great choice for buying a boiler online.

Read our Boiler Central Review Page

#2 Boxt – Growing too quickly?

boxt logo

Initially, Boxt was the first company to offer the buy online boiler system. They have a super slick site that has been developed to offer everything you may need to get a brand new state-of-the-art boiler installed. They have spent a small fortune on developing buy online boilers, and it is money well spent.

Or is it? – Their latest accounts on Companies House show a huge company loss of around -£3,500,000.

Boxt & Worcester Bosch

Additionally, Boxt only sells Worcester Bosch boilers. This isn’t a problem as Worcester Bosch make some of the best boilers on the UK market.

Their Greenstar range has won prestigious awards in the boiler world. This partly due to them being a shareholder in the company, but you can guarantee you will get a great price on one.

Open costing and pricing of boilers online

As you use Boxt’s online survey questionnaire it tells you how much that particular choice will cost you. If you need to move your boiler for example, it tells you it will cost you £300.

This is great as it may help you decide whether or not you can afford to move your boiler, which unless you absolutely have to, will save you money.

Fast and reliable installation at competitive prices

Due to Boxt being the original and the biggest company on this list, you can guarantee they will provide you with a great, efficient and low cost replacement boiler.

They have a full calendar where you can choose your installation date, even offering money off on certain dates.

Can’t afford to pay for a boiler right away – choose their boiler finance option

A lot of people buy a boiler in a rush, mainly because the old one they have a broken boiler.

No one plans to buy a new boiler, so if you don’t have the cash right away like most people you can spread the cost with boiler finance.

Spreading the cost and getting accepted for a boiler on finance online

Boxt offer pay monthly boiler finance options where you can go through the whole boiler buying process and any finance agreements online.

This means you might not have to pay a thing, get your boiler installed, and then make sure you pay the monthly payments over the term you agreed online.

Overall, Boxt is an excellent choice for anyone looking for a reliable and efficient boiler installation. However, while Boxt appears to be a good choice for boiler installation, there have been some customer service complaints. There have been reports of slow response times and difficulties in getting issues resolved on time.

#3 Warmzilla – Competitive pricing

Warmzilla shines with its straightforward approach to getting a top-of-the-line boiler installed at a competitive price. They particularly recommend Viessmann boilers, which are widely considered some of the best on the market.

Simple Steps Lead to Low-Cost Boiler Replacement

Warmzilla’s online survey is designed for ease and clarity. The questions are quick and simple to understand, ensuring you get a fixed price tailored to your home’s needs when replacing your boiler.

Competitive Pricing on Top Brands Like Viessmann

One of Warmzilla’s biggest strengths is their competitive pricing, especially on Viessmann boilers. This means you can get a top-tier boiler without breaking the bank.

Get Your New Boiler Now with Flexible Payment Options

Warmzilla offers boiler finance, allowing you to spread the cost of your new boiler over manageable monthly payments. You can conveniently apply for financing directly on their website, making the entire process hassle-free.

Compare boiler prices online in just 20 seconds – Click here

#4 iHeat – focuses on customer satisfaction

Iheat is a heating company that concentrates on client happiness while providing services to households and businesses. They were established in 2019, and since then, they have expanded quickly.

Their staff are able to carry out any sort of work, from boiler repairs to electrical work, since they hold licences from the Gas Safe Register and the NICEIC. So, you can be confident you’re getting the greatest advice.

They provide a broad range of services to their clients, e.g. installations of radiators and central heating installations.

However, unlike its competitors, iHeat does not offer services such as boiler cover or boiler service.

The bottom line is that while each of the top 5 has its advantages, Boiler Central checks off every need and then some, giving them a distinct advantage over the competition for anybody wanting to purchase a new boiler online.

You do have the option of British Gas also, but they are far more expensive so don’t really enter the competition in terms of value.

Hot Deals Icon
Green Central avatar

Written by

Read some of our superb solar panel installation reviews from Trustpilot

Recently had solar panels fitted by Green Central and I can’t speak highly enough of the team. The whole experience has been trouble free and I would recommend them to anyone thinking about having solar panels installed – 10/10!

Rob Schofield

trustpilot-stars

Our installation is now complete! 8 solar panels fitted and the journey from initial consultation through to the end product has been seamless.
Hats off Green central, Credit where it’s due.
Will definitely spread the word!

Sam

trustpilot-stars

Recently had six solar panels fitted on my house by Green Central and I couldn’t have asked for a better service. In particular, I have to highlight the exceptional communications through out, the over all smooth running process and completely stress free experience, all down to Green Central. I now have grid independence which is valuable beyond estimation.

Ash

trustpilot-stars
Name *
Email *
Phone No. *
Post Code *
Name *
Email *
Phone No. *
Post Code *