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10 Best HVAC
in Gaithersburg, MD

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On average, 55% of the energy used in American homes is for heating and cooling, according to the Department of Energy. In Gaithersburg, you're probably looking to reduce your energy usage and save money on your bills.

Read our list of the top HVAC companies in Gaithersburg to find the best choice for you and your home. Our topic contractors can help you stay comfortable while reducing your bills.

Top 10 Best HVAC Companies in Gaithersburg

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Breeze Master Inc - Heating and Air Conditioning Company

Breeze Master Inc - Heating and Air Conditioning Company Logo

Our Rating

User Rating

4800 Braddock Knoll Way, Fairfax, VA 22030 (703) 996-9879 breezemasterinc.com

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

Prompt service delivery

Services Offered

Ac repair
Furnace installation
Indoor air quality
Emergency services
Ductless
Boiler installation
Ventilation
Furnace repair
Maintenance
Ac installation
Filtration
Boiler repair
Inspection
Duct cleaning

United Air Temp

United Air Temp Logo

Our Rating

User Rating

45570 Shepard Dr Ste. #6, Sterling, VA 20164 (571) 888-8078 unitedairtemp.com

Informative resources

Clear pricing policy

Free quotes

Prompt service delivery

Reliable customer support

Services Offered

Ac repair
Duct cleaning
Furnace installation
Inspection
Emergency services
Boiler installation
Maintenance
Indoor air quality
Filtration
Ductless
Furnace repair
Ac installation

SuperTech HVAC Services

SuperTech HVAC Services Logo

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User Rating

9123 MD-108 STE 305, Columbia, MD 21045 (443) 774-0887 supertechhvac.com

Prompt service delivery

Clear pricing policy

Free quotes

Reliable customer support

Informative resources

Services Offered

Emergency services
Boiler installation
Furnace installation
Ductless
Inspection
Filtration
Maintenance
Indoor air quality
Ac repair
Ac installation
Boiler repair
Ventilation
Furnace repair

Buric Heating and Air Conditioning

Buric Heating and Air Conditioning Logo

Our Rating

User Rating

6660 Dobbin Rd Unit E, Columbia, MD 21045 (410) 593-1980 burichvac.com

Clear pricing policy

Prompt service delivery

Reliable customer support

Free quotes

Services Offered

Filtration
Furnace installation
Ac installation
Furnace repair
Inspection
Boiler repair
Emergency services
Ductless
Ac repair
Maintenance
Boiler installation
Indoor air quality

Markool Heating & Cooling

Markool Heating & Cooling Logo

Our Rating

User Rating

5304C Kings Ct, Frederick, MD 21703 (301) 969-9963 markoolhvac.com

Reliable customer support

Informative resources

Free quotes

Clear pricing policy

Services Offered

Ac repair
Radiant heating
Emergency services
Filtration
Indoor air quality
Zoning systems
Ac installation
Maintenance
Boiler installation
Ductless
Furnace installation
Duct cleaning

Clarksville Heating and Air, LLC

Clarksville Heating and Air, LLC Logo

Our Rating

User Rating

7380 Coca Cola Dr Suite 121, Hanover, MD 21076 (443) 324-0728 clarksvillecomfort.com

Clear pricing policy

Reliable customer support

Informative resources

Prompt service delivery

Free quotes

Services Offered

Furnace installation
Ductless
Ac installation
Emergency services
Filtration
Furnace repair
Ventilation
Ac repair
Indoor air quality
Radiant heating
Maintenance

Snell Home Services

Snell Home Services Logo

Our Rating

User Rating

21660 Ridgetop Cir #138, Sterling, VA 20166 (571) 470-7206 snellheatingandair.com

Reliable customer support

Informative resources

Free quotes

Prompt service delivery

Clear pricing policy

Services Offered

Furnace installation
Ductless
Boiler repair
Furnace repair
Ac installation
Boiler installation
Emergency services
Zoning systems
Indoor air quality
Maintenance
Ac repair
Inspection

McCrea Heating & Air Conditioning

McCrea Heating & Air Conditioning Logo

Our Rating

User Rating

4463 Beech Rd, Temple Hills, MD 20748 (301) 973-3132 mccreaway.com

Clear pricing policy

Prompt service delivery

Reliable customer support

Informative resources

Free quotes

Services Offered

Filtration
Furnace installation
Indoor air quality
Inspection
Ac repair
Boiler installation
Furnace repair
Ac installation
Ductless
Emergency services
Maintenance

GAC Services

GAC Services Logo

Our Rating

User Rating

227 E Deer Park Dr, Gaithersburg, MD 20877 (866) 955-7192 gacservices.com

Reliable customer support

Clear pricing policy

Prompt service delivery

Informative resources

Services Offered

Duct cleaning
Furnace installation
Emergency services
Smart home integration
Maintenance
Ductless
Filtration
Indoor air quality
Ac repair
Ac installation
Inspection

Riley Heat And Air

Riley Heat And Air Logo

Our Rating

User Rating

14504 Banquo Terrace, Silver Spring, MD 20906 (301) 880-0666 rileyheatandair.com

Free quotes

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

Duct cleaning
Furnace installation
Inspection
Ac repair
Boiler repair
Boiler installation
Filtration
Maintenance
Ventilation
Furnace repair
Indoor air quality
Emergency services
Ac installation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

If your HVAC system is having issues or getting near the end of its lifespan, it likely needs repairs or replacement from an HVAC company. Watch for these signs your system needs service:

  • Unusually high energy bills
  • Temperature control issues or thermostat malfunctions
  • Odd noises when the system turns on
  • Cracking, rust, or corrosion
  • Refrigerant leaks
  • Poor air circulation or uneven heating/cooling
  • Frequent breakdowns and need for repairs
  • An HVAC system that's over 15 years old

If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can identify problems and determine whether repair or full HVAC replacement is the better solution.

Cost of HVAC Installation and Maintenance in Gaithersburg

The cost of HVAC installation or maintenance varies depending on the type of unit you have. Common varieties of HVAC units include the following:

  • Split or mini-split: If your home's ductwork isn’t suited for a central HVAC system, you likely have a split or mini-split system. Split systems have indoor units in each room to control temperature. These indoor units all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system performs similarly to a standard split system, but is able to utilize either gas or electricity as energy sources.
  • Heat pump: Heat pumps transfer warm and cool air between your home and the outside. These systems don't make their own heat or AC, so they work more efficiently in milder climates.
  • Packaged heating and air: Packaged HVAC systems are a smart choice for smaller houses. These systems have a single combined AC and heating, normally located in an attic or basement. They're small, energy-efficient, and easy to maintain.

HVAC maintenance prices differ based on the specific services required. HVAC systems can be complicated and potentially require several different services. Costs for typical jobs are as follows:

HVAC Unit TypeCost
Split$1,976-$5,038
Hybrid Split$4,004-$7,378
Heat Pump$3,101-$31,594
Packaged Heating and Air$259-$432

Ways to Save Money on HVAC Costs

It’s important to take care of HVAC repairs and replacements when they are required, though they can be expensive. The good news is that homeowners have ways to minimize progressive deterioration and reduce the frequency of breakdowns.

  • Keep your system clean. Regularly cleaning ductwork, grills, indoor evaporator coil, and condenser fan blades helps your HVAC system run efficiently and reduces the risk of mold. The National Air Duct Cleaners Association recommends cleaning your system when it starts to look dirty.
  • Monitor for potential problems. Monitoring your system for issues — for example, by checking your thermostat and energy bills routinely — helps you catch issues before they get too expensive.
  • Change filters regularly. Replacing or cleaning your air filters every 1–3 months helps air flow smoothly through your HVAC system. We also recommend regularly clearing dirt and debris away from the outdoor sections of your system.
  • Change the position of your blinds seasonally. Leaving your blinds open during the colder months helps warm your home with passive solar heating. Closing the blinds in warmer seasons helps prevent some heat from getting inside. Doing both helps lessen the strain on your HVAC system.
ServiceCost
Filter Replacement$65-$173
Condensor Cleaning$1,297-$3,892
Thermostat Repair$86-$216
Ductwork Cleaning$415-$1,038

How To Choose a Local HVAC Company

Finding the right HVAC company is vital for a smooth installation or repair. Hiring an experienced, credentialed HVAC contractor gives you confidence your system can provide consistent heating and air conditioning year-round.

Compare Multiple Bids

Request estimates from at least three HVAC providers. Describe your issues and ask if specialists can inspect your system in person. Compare each provider's diagnoses, recommended solutions, estimated cost, warranties, and timelines. Avoid companies that pressure you or demand payment before work.

Check Credentials

Look for an HVAC company that employs skilled technicians who have the necessary training and licenses. HVAC contractors in all states need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." An individual must pass an exam (the type of exam depends on the type of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled on a state-by-state basis.

HVAC contractors in Maryland are licensed by the Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors. To obtain a master or master restricted license, a contractor is required to have at least three years of experience and must show proof of both general liability and property damage insurance. You should also look at reviews and complaints on sites like Yelp, the Better Business Bureau (BBB), and Google Reviews. Pick a company with glowing reviews and testimonials about fantastic customer experiences.

Understand Work Details

It’s important to understand what the work process will look like. For HVAC repairs, the company should list the specific parts that need replacement and why. Confirm that your technician will clean and test your system afterward to make sure everything is operating properly. When getting a replacement, ask your contractor to explain the new HVAC system model, energy efficiency, brand, features, and estimated installation time. Before starting the project, you should understand how your provider will size the system appropriately for your home and the price you'll pay.

Compare Warranties

Good HVAC companies offer warranties on repairs and installations. The more complete the coverage, the better. Review warranty details between providers and pick the one that offers the most comprehensive protection within your budget.

Get Quote in Writing

Get written bids before starting HVAC work. The quote should include costs for both labor and materials. Read all terms carefully before signing.

Frequently Asked Questions About HVAC in Gaithersburg, MD

You should have your HVAC system inspected about twice annually. Following an inspection, your technician will tell you if any services are required. You should also call a technician if you notice new issues such as strange noises, leaks, or unusual smells. If your system has ductwork, you should have it inspected every few years.

Normally, you should schedule inspections in the spring and fall, as technicians tend to be less busy at these times. This also helps get your system ready for the summer and winter, when it probably sees the most use.

You can save energy throughout the year by reducing the amount of work it takes for your HVAC system to maintain your home's temperature. Always keep your thermostat as close to the outside temperature as you can, and avoid making drastic changes — adjust it only a few degrees at once. You might also consider a smart thermostat.

It takes between one and three days to have your HVAC system installed or replaced. If you need just an air conditioning unit or a furnace, this can take between half a day and two days. This timeline will be influenced by the size of your house, the accessibility of your system, and any new issues your technician discovers.

For a 2,000-square-foot home, you should look for around 2.5 to 5 tons of air conditioning capacity. For a house over 1,000 square feet, central air will usually be more effective for cooling than window units.

For a 2,000-square-foot home, you should also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).

There are a number of ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and clean or change your air filters regularly.
  • Schedule regular inspections to take care of issues as they come up.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you don't want to or can't buy one, try to keep the temperature indoors as close to the outside temperature as is comfortable.
  • When it comes time to replace any part of your system, see if there are Energy Star-certified or similar environmentally friendly options.

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