DK Jay serves the Greater Baltimore area including Harford, Baltimore City/County, Anne Arundel, Cecil, Carroll, and  Howard Counties as well as York County, PA. Whether you need your system fixed, replaced, upgraded, modified, or just inspected, DK Jay can take care of your needs promptly and professionally.

We service all brands and models of heating and cooling systems and specialize in difficult ductwork installations.

We service/install:

Gas/Oil Furnaces, Air Conditioners, Heat Pumps, Geothermal Heat Pumps, Radiant Flooring, Boilers, Tankless boilers, Pool Heaters, Humidifiers, ERV’s, HEPA filtration, and more.

FREE estimates on system replacements and new systems.

2016 IS THE LAST YEAR FOR GEOTHERMAL TAX CREDITS!!! Converting to Geo now could be cheaper than replacing with standard equipment.  Call for more information. 410 322-5294