In 1974, Maine Air Conditioning was founded in the state of Maine.  At the end of 1994, Maine Air Conditioning merged with, W.H. Demmons, and now operates as one of it's three divisions under W.H. Demmons, Inc.

            Since 1986, Douglas W. Martin, President of  W.H. Demmons, Inc., has broadened Maine Air Conditioning’s services.  Maine Air offers ‘state of the art’  services to commercial, industrial, and select residential customers.  It is known primarily as a  ‘Design/Build/Maintain’ HVAC contractor, but also does work with select ‘Plan and Spec’ projects.  Maine Air Conditioning not only covers the Greater Portland Area, but also travels as far south as Portsmouth, N.H.; as far west as Conway, N.H.; and as far north as Waterville, Maine.

            Maine Air Conditioning offers customers a multitude of services and keeps all its employees well trained, so it can guarantee their solutions and meet their customers’ needs.  These services are as follows:

            -  A Service Department, under the supervision of Mike O'Brien, that offers 24 hour/day service 365 days/year.  We specialize in commercial and industrial refrigeration, air conditioning, heating (i.e. oil, natural gas, LP gas, heat pumps, steam and hot water), computer rooms, air movement, air flow, electric and electronic controls, pneumatic controls, humidification, dehumidification, electrical work , and air and water balance. We pride ourselves on doing quality work, and taking full responsibility of our actions.

            -  All our service and construction employees have completed gas training and have received their Propane-Natural Gas Licenses.

            -  Since 1991, Refrigerant Recovery Equipment has been in use at Maine Air Conditioning.  All our technicians are certified to handle refrigerants and each is outfitted with their own refrigerant recovery unit.

            -  We are also a Marine Service Dealer for:  Adler-Barbour, Nova Kool, Nor Cold, Sea Frost, and Grunert for refrigeration; and Cruisair, Marine Air, Lunair, and  Ocean Air for air conditioning.

            Our service department has grown to 9 full-time employees, which includes:  8 field technicians; Mike O'Brien, our Service Manager.  As a department we meet weekly to discuss accounts and receive training.  This keeps us sharp and informed.  All scheduling, billing and tracking is done with the Service 2000 computer system.  This system allows Maine Air’s customers to receive reports for tracking equipment repairs, preventive maintenance programs, total costs, etc., which is helpful for yearly budgets and equipment replacement.