Boiler installation
in Coventry & surrounding areas
We’re independent & local! You can rest assured knowing you will receive honest and bespoke advice when you choose Green Box Energy.
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Coventry's local boiler installers
Our team of fully qualified engineers are local to you and ready to help. Whether you’re replacing an old system or fitting a brand-new boiler, we provide expert advice and fast, tidy installations.
- Local and trusted
- Fully certified and experienced professionals
- Up to 12 years guarantee
- A-rated boiler installations
- Highest quality installations
- Available for call out across the West Midlands
What our clients say...
EXCELLENT Based on 52 reviews Posted on Google Matt Griffiths (OfficialGriffy)Trustindex verifies that the original source of the review is Google. Green box were recommended by the manufacturer of the heat pump I wanted installing (Clivet), from the point of contacting everything was really easy. James is really helpful and knowledgeable. Really happy with the install, would definitely recommend 👍Posted on Google Jonathan MarshTrustindex verifies that the original source of the review is Google. Very good service. James and his team changed a heating system for a heat pump and fitted 8 new radiators as well as changing the cylinder and fitting it into a very tight location. They were very helpful and came back to iron out teething problems and the system is working perfectly. I would recommend green box energy to anyone. 👍🏻👍🏻Posted on Google John WardTrustindex verifies that the original source of the review is Google. We are extremely pleased with our Heat Pump installation that Green Box Energy completed for us. From the first point of contact to the finish of the installation we felt we had picked the right Company. Operatives were very professional, polite and friendly. We have no hesitation in recommending this Company and can highly recommend them.Posted on Google Kieran BurkeTrustindex verifies that the original source of the review is Google. Came in the morning to fit a Air Conditioner, By the time they left, I had a working Air Conditioner to cool down my room.Posted on Google Greg SimcockTrustindex verifies that the original source of the review is Google. Amazing job of converting our old Oil central heating system to an Air Source Heat Pump. James and Jordan were great to have around, were professional from start to finish, left things tidy and did an incredible job for us. I would have no regrets in recommending Green Box Energy to do the same for you.Posted on Google HarryTrustindex verifies that the original source of the review is Google. Air Con Coventry. Great service from James who was clean, tidy, professional and fairly priced! Would highly recommend for all energy needs.Posted on Google Gagendip BhamraTrustindex verifies that the original source of the review is Google. James did our install with a new Worcester Bosch boiler 3 years ago and has serviced every year since. Very professional and highly knowledgeable, would definitely recommend for all your install and servicing needs!!Posted on Google Ann VealTrustindex verifies that the original source of the review is Google. Absolutely amazing, top company , A🌟🌟🌟James so helpful , and lots of info given , would recommend ✨Posted on Google LouisTrustindex verifies that the original source of the review is Google. We had James from Green Box Energy quote us for a heat pump. He took the time to explain different options, including underfloor heating and radiators, and helped us choose the best design and layout for our home. The installation process was very clean, professional, and caused no disruption. We’re really pleased with the whole experience and would highly recommend Green Box Energy.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Which boiler is right for you?
Choosing the right boiler depends on your household size, water usage and available space.
Combi Boilers (Combination Boilers)
Combi boilers are compact and efficient, providing heating and hot water directly from the boiler without the need for a separate cylinder or water tank. Ideal for smaller homes or flats with limited space, they only heat the water you need, which helps reduce energy bills.
System Boilers
System boilers use a separate hot water cylinder to store water but don’t require a cold water tank. This means they can supply hot water to multiple taps at once, making them a great option for larger homes with more than one bathroom. Many key components are built into the boiler itself, helping with installation and reliability.
Conventional Boilers (Regular or Heat-Only Boilers)
Conventional boilers work with a separate hot water cylinder and a cold water tank, usually placed in the loft. They’re ideal for homes with traditional heating systems or low water pressure and can support high hot water demand across several outlets.
Customer FAQs
What type of boiler is best for my home?
This depends on your property size, number of bathrooms, and hot water usage. Combi boilers are great for small to medium homes, while system or conventional boilers suit larger properties.
How long does a boiler installation take?
Typically, a like-for-like boiler replacement takes 1–2 days. A full system conversion (e.g. from a conventional boiler to a combi) can take 2–4 days.
Do I need to replace my radiators too?
Not always. If your radiators are old or inefficient, it may be worth replacing them to get the best performance from your new boiler.
Will I be without heating or hot water during the installation?
Yes, for a short period. However, we aim to minimise disruption and often get heating back up the same day.
Are your installers Gas Safe registered?
Absolutely. All of our engineers are fully qualified and Gas Safe registered for your safety and peace of mind.
Will a new boiler save me money?
Yes – modern boilers are much more energy-efficient. Depending on your current setup, you could save hundreds of pounds a year on your energy bills.
How do I book a boiler installation?
Simply get in touch for a free, no-obligation quote. We’ll assess your home, recommend the right boiler, and schedule an installation that works for you.
Do you provide a warranty?
Yes, all boilers we install come with a manufacturer warranty – usually between 5 and 12 years depending on the model.