Expert Engineers in Renewable Energy

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.

What our clients say...

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

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.

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.

Not always. If your radiators are old or inefficient, it may be worth replacing them to get the best performance from your new boiler.

Yes, for a short period. However, we aim to minimise disruption and often get heating back up the same day.

Absolutely. All of our engineers are fully qualified and Gas Safe registered for your safety and peace of mind.

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.

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.

Yes, all boilers we install come with a manufacturer warranty – usually between 5 and 12 years depending on the model.

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