Baystar was formed in 2011 by three individuals with significant experience in construction, engineering and heating systems:

Jason Bayliss is an experienced commercial and domestic heating engineer. He holds many technical qualifications and has specialist knowledge of biomass and heat pump equipment and controls.

Tessa Guy graduated in engineering and worked closely with property developers and builders as a construction investment analyst. She has recently gained Member Chartered Institution of Building Services Engineers (MCIBSE) status.

Jonny Starmer is a quantity surveyor specialising in commercial construction. He has Incorporated Chartered Institute of Building (ICIOB) status.

Our initial focus was on installing integrated sustainable energy solutions to small commercial and large domestic buildings, but as our technical expertise in heating and cooling grew, so did our capabilities.


Today, alongside our Sustainable Energy Solutions offer, we use our expertise in efficient systems to offer Hard Facilities Management and Mechanical & Electrical Engineering.

We offer a turn-key solution designing, installing and maintaining building services for a wide variety of new-build and existing properties, from commercial premises to large houses.

We work with a number of high profile clients, particularly within our South East heartland. Our client testimonials reflect the reputation that we have built for our technical expertise and quality workmanship.


Our goal is always to continue growing and expanding our expertise, while providing our clients with the best service.



Our team has expanded beyond the 3 directors, and we now have a fleet of experienced in-house engineers, led by Jason, who are capable of working across our whole range of services. We place great emphasis on their learning and development to ensure they are up-to-date with the latest techniques. We have also invested in capable office staff who liaise directly with clients, and ensure that everything runs smoothly behind the scenes. Our team aim to provide our clients with the best service.


With our head office in West Sussex, we are well positioned to cover the whole of London and the South East.