ThermOil, Inc.

At ThermOil, Inc., we pride ourselves on providing comprehensive HVAC and plumbing services to residential and commercial customers throughout Belmont, MA, and the surrounding areas of Eastern Massachusetts since 1983. With over 40 years of experience, our highly trained technicians are equipped to handle everything from heating oil deliveries and heating system repairs to cutting-edge cooling solutions, including AC installation and ductless mini-splits. We are committed to delivering not only quality work but also exceptional customer service, ensuring that every job is done right the first time.
Our extensive service offerings include everything from routine maintenance to emergency services available 24/7. Whether you’re in need of heating oil, gas line installations, or advanced air quality solutions such as UV air sanitizers and high-efficiency air filtration, ThermOil has you covered. Our team excels in the latest technologies, whether it’s installing radiant floor heating systems or unconventional tankless water heaters, ensuring that your home remains comfortable year-round.
Customer satisfaction is at the heart of what we do. With glowing testimonials from clients spanning over two decades, our reputation for professionalism and reliability speaks for itself. From quick emergency responses to seamless installation processes, ThermOil, Inc. is dedicated to meeting your needs and exceeding expectations, all while keeping your comfort and safety as our top priority.