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

  • No Sub-Contracters Used
  • Our Own Engineers Perform The Work
  • Save Money On Your Energy Bills

Qualified Worcester Providers

We're fully qualified Worcester boiler installers

We are proud to work with Worcester, the most reputable boiler brand in the industry, to provide the highest standard of boiler service possible. As a fully accredited Worcester installer, we only offer engineers of the highest calibre, who are reputable and provide the best value for money.

Which? best buy for 8 years straight

Worcester have been voted as the best boiler brand for an incredible 8 years in a row. They are consistently the highest rated boilers, with an overall score of 92%, 8% higher than its nearest competitor.

It stood out particularly in areas such as reliability and inclusive customer scores, earning 5-star scores for both. The Which? report concluded:

‘Worcester continues to be the benchmark against which other boiler brands should be judged…Its customers also go out of their way to sing its praises; eight in ten would definitely recommend their boiler to a friend or family member.’

Completed Installations
Years Experience
Regular Customers
Satisfied Customers

Energy Efficient

Energy Efficiency Rating
Saved On Energy Bills
Reduction In C02 Emissions

Adam Thomas


Can’t thank the team at S Energy enough for their help and guidance in the installation of our new boiler. They were fast and efficient from start to finish and made the whole process seamless. Their prices are incredibly competitive, especially considering the level of service you receive, and the performance has been incredible. I would highly recommend!

Darren Williams


We recently invested in some underfloor heating for our new home and were simply blown away by the professionalism and expertise provided by S Energy. They ensured the installation went perfectly, custom fitting the heating system to suit our home. Our living space now feels so much warmer, and we’ve seen our energy bills lower as a result!

Richard Wilkins


I have been a long standing customer with S Energy and I wouldn’t go anywhere else. The level of expertise is second to none, they make sure every installation is tailored to your home for maximum efficiency. Since having a new boiler installed, we have seen our energy bills lowered and our living space feels both cleaner and warmer.

Latest News

Our Website Is Now Live

Our Website Is Now Live

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…

How To Keep Your Conservatory Warm In The Winter

How To Keep Your Conservatory Warm In The Winter

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…

Energy-Saving Tips

Energy-Saving Tips

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…

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