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Glow Worm – Review, Prices & How To Get The Best Deal

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Glow Worm Logo


Did you know that Glow Worm has over 80 years of experience in the boiler manufacturing industry?

Or that they offer a 7-year guarantee on their boilers?

If you’re looking for an unbiased review of Glow Worm, then you’re in the right place.

In this review, you’ll find out everything you need to know about Glow Worm, including who they are, what they can offer and what their customers are saying.


What’s in this review?

Who is Glow Worm?

Glow Worm Screenshot

Glow Worm was founded in 1934 in Derbyshire, England, and have over 80 years of experience within this industry.

They are one of the leading companies for heating manufacturing in the UK and offer a wide range of products like Combination, System and Heat Only boilers, as well as controls and repairs as well.

With a four-star rating on Trustpilot, Glow Worm has an excellent customer reputation and many satisfied customers.

Glow Worm Cost and Fees

Like many manufacturers of boilers, Glow Worm doesn’t offer any concrete pricing on their website regarding the prices of boilers or things like installation; this is usually because the prices will be at the discretion of shops.

Glow-Worm Betacom4 24kW Combi Boiler: £478.80
Ultimate3 30kW Combi Boiler: £634.80
Energy 18R (ErP) Regular Boiler Only: £774.04
Glow-Worm Energy 30R Heat Only Boiler ErP 30kW: £910.80

These are some of the costs for Combi, Regular and Heat Only boilers, but the prices are dependent on where you get your boiler from; such as City Plumbing or Mr Central Heating.

You can use these prices as a general guide for the costs you can expect.

Glow Worm Core Services

Glow Worm offers their customers a range of services and products, so let’s take a look at the boilers on offer, what they are suitable for any details about their annual boiler service.

Combi Boilers

Combination boilers ensure that you can get hot water whenever you need it, instantly, by heating the water that’s coming out of your taps.

The boilers from Glow-Worm have an excellent efficiency rating and have a range of products to suit your needs, whether they need to be able to fit inside a cupboard or have to be LPG compatible.

✔ 7-year warranty
✔ A-rated for efficiency
✔ Value for money
✔ Reliable performance

Some boilers also include:

✔ Analogue timer and flue
✔ Suitable for large properties
✔ Instant hot water
✔ Extended guarantee options

System Boilers

System boilers, unlike combination boilers, require a storage cylinder to provide hot water and central heating to your home.

You might have a system boiler if you have space in your loft to keep your cylinder, or if you have a large family that requires hot water in multiple locations at the same time.

✔ Compact size to fit in cupboards

✔ A-rated efficiency

✔ Quiet mark approved

✔ 7-year guarantee for most boilers

✔ Great performance

✔ Competitive pricing

Heat Only Boilers

Heat Only boilers utilise a combination of boilers, storage cylinders and water tanks to heat your water as well as your central heating systems.

The Glow Worm Heat Only boilers are award-winning and made to be durable, as well as quick and easy to use.

✔ A-rated for efficiency

✔ Compact size

✔ Made to be ultra quiet

✔ 7-year guarantee

✔ Light-weight

✔ High performance

✔ Competitively priced

Annual servicing

As most boiler suppliers and service providers will tell you, getting your boiler serviced on an annual basis can help you prevent future breakdowns, keep you safe and make sure that your boiler can heat your home and your water.

This could even extend the life of your boiler, and comes with these benefits:

✔ Maintain guarantee after year one

✔ Avoid any future repairs

✔ Save energy by having an efficient boiler

✔ Make sure your boiler reaches life expectancy

Glow Worm Reviews

When it comes to reviews on trusted websites such as Trustpilot, Glow Worm has over 1,800 reviews, 75% of which are rated five-stars and only 4% are in the negative one-star category.

The rest fall somewhere in the middle, with many reviews stating that the Glow Worm has a variety of solutions on offer and customers, are satisfied with their service.

Although online reviews aren’t always accurate, you should still consider them when deciding which boiler or boiler supplier are right for you.

Positive Glow Worm Review

Mick Potts on Trustpilot: Currently no issues with the new boiler, very happy with the performance.

Negative Glow Worm Review

Ashley Smith on Trustpilot: Have been waiting months for contract support to be arranged. Utterly dreadful service.

Glow Worm Customer Support

Are you an existing Glow Worm customer? Do you need to get in touch with their customer service team?

Here’s how.

  • Call 0345 602 2922 for general enquiries
  • Call 0344 736 0059 for technical support
  • Ring 0330 100 3142 to book a service
  • Ring 01773 828300 for installer technical support
  • Fill out the contact form here

The hours to ring are between 7:30 am and 7 pm Monday to Friday, 8 am and 3 pm on Saturday, and 8 am to 12 pm on Sunday.

Comparing Glow Worm

CompanyCustomer ScoreBoiler RatingPrice
Glow Worm★★★★★★★★£634.80+
Ideal Boilers★★★★★★£577.29+
Alpha Boilers★★★★★★★£625+


In conclusion, Glow Worm has a wide variety of boilers and services on offer, such as combination, regular and heat only boilers, that can suit any homes specific needs.

Have you found out everything that you need to know about Glow Worm?

Are you interested in becoming a Glow Worm customer?

First of all, you need to make sure that you compare all of your available options; here’s how.

Check out the comparison tool at the top of the page to compare all of your boiler options within minutes, or take a quick look at the ExpertSure guides to find out more.

Written By

Georgia Photo


Georgia is passionate about environmental technology, and is a cherished Ecopreneurist regular writer.

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