Combustion Mechanical Service Inc

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About Us

Combustion Mechanical Services, Inc has brought high quality HVAC services to the greater Hartford, CT and Springfield, MA areas for more than two decades, serving residential and commercial customers. With highly trained and licensed experts, you will receive unparalleled customer service and competitive estimates on the varied services we offer.


Commercial Services

Quality at work

  • High Efficiency Boilers
  • Oil to Natural Gas Conversions
  • Boiler Design/Installation
  • Custom Designed Gas, Oil, Steam Piping, & Air Systems
  • Heating Systems

We have performed services for schools, factories, institutions and apartment complexes. Spreading across vast industries, we have been consistent in the quality of our commercial services.


Residential Services

Quality at home

  • High Efficiency Boilers
  • Oil to Natural Gas Boiler Conversions
  • Air Conditioning Installation, Maintenance & Repair
  • Steam & Hot Water Systems
  • Indirect Water Heaters

All new installations get a minimum one year warranty on the labor and material installed by us. Major equipment subject to manufacturers warranties.


Customized Care

You are our priority

  • Not a typical franchise HVAC vendor.
  • Personalized attention and care.
  • Financing available for select jobs.

At CMS we do not treat our customers like transactions. We follow through with what is promised and strive for high quality service. We enjoy staying connected with our clients after the job is finished, providing preventive maintenance contracts and financing for select services.

With a wide range of services including boiler installation, oil to gas conversions and air conditioning installation, we wish to fully service both our residential and commercial customers and continue growing our business. Most of our services come with a minimum one-year warranty and for certain services we do offer financing.
Whether you are a long time Hartford county resident, new to the area or simply jaded with the generic franchises that flood this area, we look forward to providing you with excellent, highly personalized and most importantly local service. Please contact us for a free estimate. We look forward to serving you!