Best HVAC Contractors in Frederick, MD

Area overview: Frederick, MD

Of the 24 companies we list here, 21 are in Frederick itself and 3 come from Emmitsburg (1, 18 mi), Ellicott City (1, 33 mi) and Hanover, PA (1, 33 mi). 23 of the companies on this page have a rating, from 4.0 to 5.0 across 8,462 reviews; 16 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), quality (81%) and responsiveness (79%). 5 are open around the clock; 12 are open on Saturdays and 9 on Sundays. The services the companies on this page list most often on their websites are commercial hvac (4), heating (3), air conditioning (2), ductless AC (2) and ductless mini-splits (2). 7 show a license on their websites; 2 list staff certifications (EPA and NATE) and 3 have a BBB rating of A or A+. Domain records put 15 websites of the companies on this page at ten or more years old; the oldest dates from 1999. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.