Welcome To S Energy
We are the leading specialists in providing custom heating systems, having served the communities of Cardiff and the rest of South Wales for over 24 years. We have extensive experience in the installation of boilers, underfloor heating and more. We offer a range of services, including:
Our Services
Why Choose
S Energy
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Qualified Worcester Providers

We're fully qualified Worcester boiler installers
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Which? best buy for 8 years straight
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Energy Efficient
Latest News

We are pleased to announce our new website has now gone live! Featuring a more streamlined UI and improved design, it will be easier than ever to get in touch with us and learn about…

Conservatories can be a cold place during winter, so what can you do to help improve heat retention during the cold months? Read on to find out… Invest in glazing Obviously glass doesn’t provide the…

There are lots of little ways you can help cut costs on your energy bills. They seem insignificant, but over the course of the winter, they all add up to help you save hundreds of…