Douglas Mechanical Services: Air Conditioning, Heating, Refrigeration, Cooling, and Venting



Douglas Mechanical Services
CT LIC.# S1-394918
47 Northampton Lane
Plainville, CT 06062
860-410-9887

Commercial Products & Services


Our technicians are not only experienced with many different commercial brands but with expanding technologies as well. We supply quality parts and equipment from manufacturers like American Standard, Aprilaire, Buderus, Carrier, Daikin, HB Smith, Honeywell, Johnson Controls, Mitsubishi, Powerflame, Samsung, Trane, and Weil McLain, plus many others.


Douglas Mechanical Services technicians are trained to handle nearly every service needed including gas and oil fired boilers, gas and oil warm air heat, cooling, ventilation, and commercial refrigeration systems. We install and service commercial water heaters from the smallest to the largest. We also service all sizes and makes of commercial rooftop packages.



Douglas Mechanical Services - For commercial service, repairs, change outs, or new installation



Furthermore, equipment left by past contractors (i.e. boilers, furnaces, rooftop units, compressors, and hot water heaters) can be easily removed and disposed of properly by our company. We can do this for even the largest commercial facility.

Click on one of the manufacturers below to learn more about the products they offer, which we can install for you.


American Standard American Standard
Aprilaire Aprilaire
Buderus Buderus
Carrier Carrier
Daikin Daikin
HB Smith HB Smith
Honeywell Honeywell
Johnson Controls Johnson Controls
Powerflame Powerflame
Samsung Samsung
Trane Trane
Weil McLain Weil McLain


Douglas Mechanical Services - Service, repairs, existing unit upgrades, or new installation for your corporate or industrial needs


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Douglas Mechanical Services Inc. provides service, installation, repair, and existing unit upgrades on air conditioning, heating, refrigeration, cooling, and ventilation systems.


Douglas Mechanical Services Inc. services the following Connecticut areas and counties: Hartford, Fairfield, Litchfield, Middlesex, New London, Tolland, Windham.


Douglas Mechanical Services Inc. supplies parts and equipment from the following manufacturers: American Standard, Aprilaire, Buderus, Carrier, Daikin, HB Smith, Honeywell, Johnson Controls,
Mitsubishi, Powerflame, Samsung, Trane, and Weil McLain.