Make Alpha your first choice

With more than 50 years’ experience in the industry, our products deliver heat that customers can rely on. From dependable domestic combi boilers offering plenty of heat and hot water to powerful, efficient commercial systems with outputs to suit any setting, we have the solution.

Here to help

Based at our head office in Kent, our customer service team is on hand to answer your questions and offer technical support. In the unlikely event that you experience a problem that cannot be resolved over the phone, we'll dispatch one of our nationwide service engineers to solve the issue as quickly as possible.


Our high quality products and expert, friendly service has earned us a rating of 'Excellent' on Trustpilot. To read what some of our happy customers have to say, take a look at our Trustpilot reviews.

Good Homes Approved

The Alpha E-Tec Plus combi boiler range has been certified ‘Good Homes Approved’ and received a five-star review from the leading home-improvement publication. The Good Homes team was impressed by the compact size, performance, quality components and value for money of the E-Tec Plus. Read more about the certification here: Alpha E-Tec Plus Good Homes Approved


For true peace of mind, we offer market leading warranties on our range of boilers. The E-Tec combi, system and regular boilers are supplied with a 7 year warrany as standard, while the E-Tec Plus comes with a 10 year warranty that can be boosted up to 13 years when installed with our PremierPack Extra wall-mounting jig that includes the Cyclone Plus magnetic filter.

Leading the way

Part of the Immergas Group, one of Europe’s leading heating appliance manufacturers, our products are designed and built at one the most advanced production facilities in the world. With the benefit of worldwide innovations, we are continually refining our product range with new technologies to offer the best possible heating solutions.

Simply sustainable

We understand that customers want to minimise their environmental impact wherever possible while also reducing their bills. Therefore, we strive to offer heating systems with the highest levels of energy efficiency. For example, our GasSaver flue gas heat recovery unit can easily be combined with our high efficiency boilers to help homeowners minimise their energy use.

In addition, each product in our commercial range includes advanced technologies that help to reduce nitrous oxide (NOx) emissions. As a result our Ares TecAres Pro and ProTec Plus products all achieve a NOx Class 6 rating - the highest standard for NOx emissions.


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