Founded by Davey Douylliez, JMD Corporation has been providing homeowners and businesses in the Northern West Virginia and Southwestern Pennsylvania regions, total solutions for installation, repair, and on-going maintenance for all heating, air conditioning, ventilation, and commercial refrigeration systems since 1988. Our technicians have extensive experience with conventional gas, propane, and oil furnaces, air conditioning and heat pump systems, as well as, hybrid heat and geothermal units. Our goal is to provide exceptional customer service from the moment you call us until the work on your home or business is complete.

Geothermal energy is the thermal energy generated and stored in the earth. Geothermal heating and cooling systems take advantage of the stable temperature underground using a piping system referred to as a "loop." Water circulates in the loop to exchange heat between your home, the ground source heat pump, and the earth. This provides heating, cooling, and hot water at remarkably high efficiencies.

Our service technicians receive on-going training in the latest heating and cooling technologies. We specialize in the installation of precise heating and air conditioning applications that satisfy very specific guidelines. And you will be assured knowing that your system will be serviced and maintained by a NATE-certified technician. This certification is the highest qualification in the industry so you can be confident that we will do the job right the first time. Geothermal energy is the thermal energy generated and stored in the earth.

What's new?

To properly maintain heating equipment, most manufacturers recommend it be serviced and cleaned at least once a year. Most service contracts cover the cost of a tune up to help your system run efficiently through the heating season. Preventative maintenance of your equipment reduces the likelihood...

Posted on Dec 06, 2019  •  Facebook

Do Ceiling Fans Help in the Winter?

Posted on Nov 20, 2019  •  Facebook

Thanksgiving is only 2 weeks away. Are you hosting dinner at your home this year? Have you been having trouble with your heating system? You want your guests to enjoy the day and be comfortable.

Posted on Nov 14, 2019  •  Facebook

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