
Serving Baltimore, MD and surrounding areas
Approved
In business since 1990
Free estimates
Credit card accepted
"It's now been over ten years since Ground Loop installed my waterfurnace geothermal system. I had baseboard heating from an oil boiler. They installed a duct system and removed the baseboards radiators and pipes. The system did have some problems over the years (Waterfurnace problems, not a Ground Loop problem) but all the repair work was done under warranty, and in a timely manner. I would recommend them."



























