W. H. Demmons, Inc. has been involved in Geothermal Projects since 1992 when we did our first project at Catholic Charities in downtown Portland, Maine. The first project was a three-story 22,000 ft² building that is a community center with counseling, offices, a library, activity spaces, and a full commercial kitchen and dining area. This project, like many of our designs, is known for its efficient use of energy (i.e. this building's energy costs were 40% of similar buildings) through the use of its "state of the art HVAC system" and its good IAQ (i.e. indoor air quality). It is still in service today and maintained by our HVAC division called Maine Air Conditioning.

Since our first geothermal design in 1992, W.H. Demmons Inc. has been one of the leading Geothermal Design Build Contractors in New England, and the leader in Maine. Our team lead by Douglas Martin, P.E., has been involved in numerous Geothermal Projects in Maine totaling more than 250,000 ft², including office buildings, inns, banks, classrooms, lecture halls, and Maine Audubon in Falmouth, Maine.

Our most recent projects include:

       • Maine Central Institute (MCI) in Pittsfield, Maine.  This 24,000 ft² Math and Science Building was commissioned in 2001.

       • Merriconeag Waldorf School in Freeport, Maine.  This 7,000 ft² Early Child Center Building was commissioned in 2003.

      • United States Custom House in Portland, Maine.  This 20,000 ft² Government Office Building was commissioned in 2003.

       • University of Southern Maine in Portland, Maine.  This 33,000 ft² Classroom and Lecture Hall Building was commissioned in 2005.

       • Colby College Alumni Center in Waterville, Maine.  This 30,000 ft² Building was commissioned in 2005.

       • Saco & Biddeford Savings Institute in Biddeford, Maine.  This 4,000 ft² Branch Saving Bank Building was commissioned in 2006.

       • York County Court House in Alfred, Maine.  This 45,000 ft² County Office and Court Room Building is to be commissioned in May of 2007.

With each design we work closely with our clients to deliver the best possible package for energy efficiency design, cost, and IAQ. We offer a full design./build/maintain approach to construction starting with our licensed engineers. It is important with these projects to start early with the well design and drilling. A typical well maybe 1,500 ft deep, but each project is always a little different. Understanding the best way possible to utilize ground water to economize and to transfer energy from the earth to the building is the key to success in operating costs and first cost. From this starting point we can move forward with the rest of the design.

Come visit W.H. Demmons’ offices on 93 Warren Ave. in Portland , Maine which has been operating as a Geothermal Heating and Cooling Systems since 1995.