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Last updated: 13 March 2024

Glow-worm Boiler in the UK: Prices & Reviews (2024)

Glow-worm Boiler Prices

If, like other homeowners in the UK, you are looking to lower your central heating costs without jeopardising the quality of your home heating, you will want to give some serious thought to installing a Glow-worm boiler. 

Glow-worm is a reputable company with nearly a century of experience with providing heating solutions to households across the country. Since 1934, Glow-worm has been dedicated to producing reliable, energy-efficient, and cost-effective appliances. 

So, if you’re looking for a high-quality boiler at a low cost, a Glow-worm boiler might just be the best option for your home. To help you with the process of choosing your new appliance, we address the following questions in this article: 

  • How much do Glow-worm boilers cost?
  • What affects the cost of a Glow-worm boiler?
  • What are the pros and cons of Glow-worm boilers? 
  • Are Glow-worm boilers better than other brands?
  • Is a Glow-worm boiler the right choice for your home? 

Once you decide that a Glow-worm boiler is the right fit for your home, your main questions will most likely be connected to new boiler prices. However, if you start looking into boiler costs, you will find that various sources mention different prices. 

That is why trying to find accurate information on your own can be extremely confusing and frustrating, not to mention time-consuming. To avoid any unnecessary stress, you should go straight to the source and ask boiler installers to provide you with up-to-date costs for various boiler models and their services. 

To ensure that you don’t waste hours looking up installation companies on your own, we have devised a short form through which you can request quotes from up to 3 local installers in less than 1 minute. You can then compare boiler and installation costs to find the best deal for your home. 

Just click below to get started now!

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Glow-worm boiler prices

When it comes to the costs of Glow-worm boilers, they can range anywhere from £550 to £900. How much you end up spending on your new appliance will depend on the boiler type you choose, as well as on the power output of your boiler. You can consult the table below to get a better indication of the costs of Glow-worm combi, system, and heat-only or conventional boilers running on gas

Glow-worm Boiler Prices
Boiler ModelBoiler TypePower Output (kW)Estimated Cost (Excluding Installation)
CompactCombi24kW£550
Easicom₃Combi24kW£620
Ultimate₃ System25kW£730
EnergySystem25kW£790
Ultimate₃ Conventional25kW£750
EnergyConventional30kW£900

As you can see, a Glow-worm combi boiler costs less than a system or a conventional boiler. However, system and heat-only (or conventional) boilers can typically attend to higher energy needs with more ease than a combi model. 

So, before making any big decisions regarding your heating system, you will want to carefully weigh your options and consult a heating engineer to determine what type of boiler is best suited for your home. 

What influences the Glow-worm boiler cost?

Hopefully, the estimates above have given you an idea of what you can expect when it comes to the cost of your new Glow-worm boiler. However, there are several factors that will have a direct impact on your total expenses.

Factors Glow-worm cost

The size of the boiler

Firstly, the size of your boiler will significantly affect the total cost of your new appliance. What we mean by size is the power output of your boiler, which is measured in kW. The higher the power output of the boiler, the higher the cost. 

When it comes to Glow-worm boilers, a 24kW combi gas boiler costs somewhere around £550, whereas a 35kW one is £780.

The type of boiler you choose

Additionally, the type of boiler you choose to have fitted will also influence your expenses. This is because each boiler type has different configurations and installation processes.

A combi boiler is usually the cheapest to install, whereas system and conventional boilers have higher costs. Unlike the combi boiler which is a compact unit, system and conventional boilers require additional elements such as water storage tanks, which will add to your total expenses. 

The kind of boiler replacement you need

A like-for-like boiler replacement will cost less than replacing your old boiler with a different boiler type. For instance, switching from a combi to a system boiler will be more expensive, because it requires additional components for the boiler to function, as well as adjustments to the pipework in your home. As a result, you will be spending more on parts, as well as on installation fees. 

Your location

Boiler and installation costs vary per area in the UK. This is because of the availability and demand for boilers and installation services in different locations. As a result, you can expect to pay more on having your boiler fitted if you live in a large city. In rural areas, the costs tend to be somewhat lower.

The installer you choose to work with

The installer you choose to work with significantly impacts the total cost of having a boiler fitted in your home. You will most likely spend more on your boiler installation if you work with a national installation company. Local installers, on the other hand, are often a more cost-effective option. 

To find the cheapest boiler installation for your home, you will want to compare the service costs of several different installation companies. You can get this process started in just 30 seconds by clicking below. 

By filling in our short form, you can request quotes from up to 3 heating experts in your area and secure the best deal for a Glow-worm boiler installation. 

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Glow-worm boiler review: Pros & cons

Before deciding to have a Glow-worm boiler installed in your home, you will want to weigh the advantages and disadvantages of such a home heating solution. Here are some points to consider:

Pros and cons Glow-worm boilers

Advantages of Glow-worm boilers

  • High energy efficiency: Glow-worm boilers have an ErP A rating, meaning that they have an efficiency rate of above 90%. 
  • Easy to use: Glow-worm boilers have user-friendly controls that make them easy to operate for any homeowner. 
  • Reliable: Glow-worm boilers are known for their reliability and long lifespan. They also come with long warranty periods to provide peace of mind.
  • Quiet operation: Glow-worm boilers are designed to operate quietly, so you won't be disturbed by them when they are running.
  • Cost-effective: Most Glow-worm boiler models cost less than £1,000, making them an affordable option for many homeowners.

If the impressive advantages of Glow-worm boilers have convinced you, the next step in having one fitted is contacting a boiler installer. Still on the fence about Glow-worm boilers? An installer can also help you decide whether such an appliance is the best option for you.

Finding a reliable heating engineer to work with can be a hassle and it can mean wasting hours on researching and comparing installation companies. Fortunately, you do not have to go through this process alone. We can help you get in touch with up to 3 local installers vetted by us in no time!

By clicking below and answering a few short questions, you can start the process of finding an installer to work with in less than 1 minute! 

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Disadvantages of Glow-worm boilers

  • Limited power output: Most Glow-worm boiler models have a size of 24-25kW, with the largest size available being 35kW. This means that Glow-worm boilers might not be able to attend to the higher energy needs of larger homes.
  • Slightly more expensive: While Glow-worm boilers are a great cost-effective option, other boiler manufacturers offer high-quality appliances at a somewhat lower price. 
  • Disruptive installation: Installing a boiler can take quite some time and the process can have an impact on the comfort of your home. 

Glow Worm customer reviews

Glow-worm reviews

As you are weighing your options when it comes to a new boiler, you would be right to ask yourself: Are Glow-worm boilers any good? The short answer is yes. Glow-worm boilers are an excellent option if you are looking for a high-quality energy-efficient boiler without overspending on your home heating system.

However, you should not only take our word for it. More than 6,000 homeowners have left a positive Glow-worm boiler review on Trustpilot. This has earned the company a 4.6 out of 5 rating. The satisfied customers report that they enjoy the reliability of their Glow-worm boiler, its long standard warranty period, as well as its quiet operation and compact design. 

How do Glow Worm boilers compare to other brands?

We have compared the price of Glow-worm boilers to:

You can find the results of our research in the table below, where we provide an overview of combi boiler prices for each different boiler manufacturer. The prices mentioned here do not include installation costs

Glow-worm Boilers Comparison to Other Manufacturers
SpecificationsGlow-wormBaxiIdealWorcester BoschVaillant
Efficiency (%)92-93%93%93-94%92-94%94%
Standard Warranty5-7 yearsUp to 10 years2 yearsUp to 10 yearsUp to 10 years
Estimated Cost £550-£900£600-£1,100£950-£1,400£730-£3,840£850-£1,800
Glow-worm bar chart

As you can see above, a Glow-worm combi boiler rivals appliances offered by other manufacturers when it comes to efficiency. With one of the longest standard warranties on the market, homeowners are guaranteed the high performance of their new boiler for longer. In terms of price, Glow-worm boilers are some of the cheapest heating solutions for your home. 

So, compared to other boiler brands available in the UK today, Glow-worm promises quality boilers at a low cost and ensures that you can enjoy their benefits to the fullest with a 5-to-7-year standard warranty. 

Is Glow-worm the right choice for my household?

Glow-worm is a reputable and well-established British company offering highly-efficient products at some of the lowest costs on the market today. Overall, customer satisfaction with this manufacturer is also high, which is a good indication of the quality of the products and services provided by Glow-worm.

So, if these attributes are appealing to you, you might find that a Glow-worm boiler is the best choice for your home. However, it is also worth considering that there are some disadvantages to Glow-worm products, like the fact that other manufacturers offer cheaper heating options or that the power output of most models is fairly low. 

All things considered, at the end of the day only you can determine whether a Glow-worm boiler is the best fit for your home. However, if you could use some help with making your decision, your best bet is to consult an experienced heating engineer. They can assist you with establishing your energy requirements and deciding which boiler type and Glow-worm model can best attend to your household’s needs. 

Haven’t got a clue how to find a specialist who can advise you? Thankfully, you don’t have to look any further. We work with a broad network of reputable heating engineers who can offer you their help and services. All you have to do to reach out to them is fill in our 1-minute form and request quotes from up to 3 boiler installers in your area. 

This way, you can find out which heating engineers work in your area and find the best deal on your new Glow-worm installation. Get started today by clicking below to request quotes! 

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