• "I am very happy with Optimum Heating and the KWB boiler. Optimum were extremely helpful and installed the boiler to a high standard. The KWB boiler is also very efficient".

    Steve Cave, Georgeham
  • "We have turned a building that was originally redundant into one that now makes a profit from its heating system".

    Christie Estates, Instow
  • "We are very happy with the installation which coincided well with tenants coming to stay. There were no problems and we are pleased with John, David and Matts work".

    Mr Friend, Brightlycott Barton, Barnstaple
  • "Optimum Heating were excellent, from the initial advice and guidance of the design staff, to the professionalism of the installation team and the essential office support on the RHI application from Natalie. The KWB kit is incredibly well engineered and a great piece of technology. It is working really well".

    Mr Honey, Lee Bay, North Devon

Welcome to the Optimum Group


Founded in 1992 and based in Barnstaple, Optimum Group are Heating Specialists providing solutions across the South West from Cornwall to Wiltshire. Our teams of experienced engineers providing Commercial and Renewable Heating, Maintenance, Air Conditioning and Electrical works.

Optimum Group are committed to providing a customer focused service to all of our clients, that's why we have a dedicated team in the office to answer your calls .

We aim to provide the highest standard of service in all areas of our Business by ensuring that training is key to our staff development.

All of our engineers are trained to the highest level in their fields and are accredited to standards set out by the relevant trade association for these fields (MCS, Gas safe, OFTEC, HETAS and 17th Edition).

We are committed to providing a customer focused service to all our customers.

Case Studies

Please click on the sections below to read case studies for each section.