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BAIR Necessities

1045 Carbondale Drive
Gambrills, MD 21054


Service area: 100 miles

Service Area: Maryland residential and commercial customers.


We are a recognized Geopro contractor in the installation and maintenance of earth-friendly Geothermal heating and air conditioning systems.


BAIR Necessities has a commitment to environmentally sustainable practices, and will help you save money and save the environment at the same time. Using EnergyStar rated systems and the latest Geothermal technology, we have partnered with the top brands and industries to bring you both unparalleled green services and incredible value.


Owner, Terry Bair has his Geopro certification

Your comfort is a BAIR Necessity!

BAIR Necessities is a recognized leader in earth-friendly GEOTHERMAL heating and air conditioning systems installation and maintenance. We deliver a full spectrum of the highest-quality installation and repair services to Maryland residential and commercial customers with heat pumps, gas, oil, hot water and radiant HVAC systems.

For more than 27 years we have had a very simple business plan—we ALWAYS act in our customers' best interests—period.

Our business plan has another advantage, it lets us and our customers rest easy at night knowing that

-24-hour emergency service
-Authorized dealer for all major brands
-Certified technicians
-In-house financing
-Free estimates for replacements and new installation
-Licensed and insured