3,693 Gaithersburg, MD HVAC Contractors

What do HVAC contractors do? “HVAC” stands for “heating, ventilation and air conditioning.” An HVAC technician or contractor specializes in heating systems, air duct cleaning and repairs, insulation and air conditioning for your Gaithersburg, MD home and other homes. More 
HEIDLER INC (410) 268-7191
Annapolis, MD, 21401
37 miles from Gaithersburg
Our Commitment To Excellence •It is our goal to be the innovative leader in the plumbing and heating contractor industry. •We pledge to provide our customers with quality... Read More
Middleburg, VA, 20118
32 miles from Gaithersburg
Climatic Heating and Cooling, Inc. is a customer focused heating and air-conditioning company that was founded in 1990. Based in Middleburg, Virginia, we employ highly trained... Read More
Baltimore, MD, 21227
28 miles from Gaithersburg
Since 2005 Air Duct Pros has provided the highest quality air duct cleaning service to over five thousand homeowners in Maryland. Located in Baltimore we are family owned and... Read More
John C. Flood, Inc. (703) 914-1800
Alexandria, VA, 22312
23 miles from Gaithersburg
We have been providing plumbing, air conditioning, heating & electrical services for over 100 years. Serving the Metro DC, Northern Virginia and Maryland areas with excellent and... Read More
Green Hill Geothermal (540) 428-0021
Warrenton, VA, 20186
47 miles from Gaithersburg
A ground source heat pump system uses the earth’s energy and a small amount of electricity to provide one of the most efficient methods of heating and cooling a building. In the... Read More
Air-Tech Systems, Inc. (703) 435-0892
Sterling, VA, 20166
19 miles from Gaithersburg
Serving Northern Virginia since 1987, Air-Tech Systems, Inc is an HVAC mechanical contractor specializing in design/build of custom homes and commercial properties. Service and... Read More
Springfield, VA, 22150
26 miles from Gaithersburg
The NATE certified technicians at National Indoor Climate Experts (N.I.C.E.) are dedicated to you and your family's complete comfort. Our professionals will help to minimize your... Read More
Comfort Solutions, Inc. (703) 266-3678
Springfield, VA, 22153
28 miles from Gaithersburg
Top rated and award winning heating and air conditioning company. Our company is focused on quality and taking care of our clients. We offer an array of solutions to help folks... Read More
Emmitsburg, MD, 21727
39 miles from Gaithersburg
Holtzople Heating and Air Conditioning is a leading HVAC company based in Frederick, MD, featuring star brands such as Trane, Lennox, ClimateMaster, Carrier, and more. Read More
Monrovia, MD, 21770
15 miles from Gaithersburg
At Erick Smock Heating & Air Conditioning, Inc. our focus is always on you – the customer. Eric Smock Heating & Air conditioning, Inc., your Frederick County heating and air... Read More
MD, 20877
MD, 20877
MD, 20879
MD, 20877
MD, 20850
5 miles from Gaithersburg
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When Should You Hire an HVAC Contractor?


Generally, HVAC contractors or HVAC technicians work with or run companies that repair or install heating systems and air conditioning units for homes. But they have specialized services too. For example, if you are a wine collector and you are thinking of installing a wine cellar in your Gaithersburg, MD home, you might hire a Maryland HVAC professional who specializes in refrigeration work.

HVAC professionals can use their skills to help you to save money on your Gaithersburg, MD home’s energy bills by installing radiant barriers in your attic or split-zone heating and cooling systems to heat rooms like solariums while cooling upstairs bedrooms during warmer temperatures.

If you or a family member suffers from allergies, you’ll want to find a Maryland HVAC technician who is knowledgeable about the latest cooling and heating products that include antiallergen filters. Contractors who work in the HVAC industry keep up on the latest in heating and air conditioning technology so outdated or troublesome systems can be retrofitted with newer, more energy-efficient models. Some of these professionals may work with your contractor, builder or other home improvement professional to get the job done.



Ask HVAC contractors about these residential heating and cooling technologies:


  • Tankless hot-water pumps
  • Residential air cleaning devices
  • Ductless air circulation systems
  • A desiccant enhanced evaporative air conditioner system (for hot and humid climates)
  • Heat recovery systems (which cool the air and heat water with no extra energy use)

Find HVAC contractors on Houzz. Look in the Professionals section of our website and search for Maryland HVAC contractors. Read reviews and see how an HVAC contractor might approach your Gaithersburg, MD home’s heating and cooling challenges.
Professional Categories in Gaithersburg
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