10 Best HVAC Companies in Leesburg, VA

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Last Updated: February 25, 2025

According to the U.S. Department of Energy, approximately 55% of the energy used in American homes is used for heating and cooling. You want your Leesburg home to be comfortable, but you also don't want to be wasting your money on inefficient cooling and heating.

A talented HVAC contractor can get your system into its best shape ever, letting you keep your home comfortable while still saving money. That's why we've assembled this guide to the best HVAC companies in Leesburg.

Top 10 Best HVAC Companies in Leesburg

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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

Free quotes

Clear pricing policy

Reliable customer support

Prompt service delivery

Informative resources

Services Offered

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

United Air Temp

United Air Temp Logo

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User Rating

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

Clear pricing policy

Prompt service delivery

Informative resources

Reliable customer support

Free quotes

Services Offered

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

Service Cart

Service Cart Logo

Our Rating

User Rating

7255 Gabe Ct, Manassas, VA 20109 (703) 705-2525 theservicecart.com

Free quotes

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

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

McCrea Heating & Air Conditioning

McCrea Heating & Air Conditioning Logo

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User Rating

5083 Lee Hwy, Warrenton, VA 20187 (540) 317-1939 mccreaway.com

Informative resources

Reliable customer support

Prompt service delivery

Clear pricing policy

Free quote

Services Offered

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

Markool Heating & Cooling

Markool Heating & Cooling Logo

Our Rating

User Rating

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

Free quotes

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

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

Snell Home Services

Snell Home Services Logo

Our Rating

User Rating

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

Clear pricing policy

Informative resources

Reliable customer support

Free quotes

Prompt service delivery

Services Offered

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

GAC Services

GAC Services Logo

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User Rating

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

Clear pricing policy

Informative resources

Prompt service delivery

Reliable customer support

Services Offered

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

Riley Heat And Air

Riley Heat And Air Logo

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User Rating

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

Informative resources

Reliable customer support

Free quotes

Clear pricing policy

Services Offered

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

Dave's Cooling & Heating

Dave's Cooling & Heating Logo

Our Rating

User Rating

9022 Walnut St, Union Bridge, MD 21791 (301) 401-2780 ravefordaves.com

Reliable customer support

Prompt service delivery

Informative resources

Clear pricing policy

Services Offered

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

One Hour Heating & Air Conditioning® of Northern Virginia

One Hour Heating & Air Conditioning® of Northern Virginia Logo

Our Rating

User Rating

21730 Red Rum Dr Suite 182, Ashburn, VA 20147 (571) 380-7548 onehourheatandair.com

Informative resources

Free quotes

Prompt service delivery

Clear pricing policy

Services Offered

Ductless
Furnace installation
Emergency services
Filtration
Furnace repair
Duct cleaning
Indoor air quality
Ac repair
Ac installation
Maintenance
Ventilation
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 broken or getting old, it likely needs servicing or replacement from an HVAC company. Watch for these indicators your system needs service:

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

Schedule an inspection if you notice any of these problems. A local technician can assess your system, detect problems, and figure out whether you need to fix or replace your HVAC.

Cost of HVAC Installation and Maintenance in Leesburg

Your HVAC installation or maintenance cost varies depending on the type of unit. Common HVAC unit varieties include the following:

  • Split or mini-split: If your home doesn't have the right ductwork for central air or heating, you probably have a split HVAC system. Split or mini-split systems consist of internal units that regulate the temperature in individual rooms, and that are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions in the same way as a normal split system, but has the benefit of being able to utilize energy from either gas or electric sources.
  • Heat pump: Heat pumps move warm and cool air between your home and outside. These systems don't generate their own heat or AC, so they work more efficiently in more temperate climates.
  • Packaged heating and air: Packaged HVAC systems are a good choice for smaller homes. They have a single cooling and heating unit, typically in an attic or basement. This unit is often small, energy-efficient, and easy to maintain.

HVAC maintenance prices differ depending on what services are needed. HVAC systems are complex and may require different kinds of maintenance. Costs for some common services are as follows:

HVAC Unit TypeCost
Split$1,984-$5,058
Hybrid Split$4,020-$7,406
Heat Pump$3,113-$31,717
Packaged Heating and Air$260-$434

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. Cleaning your grills, indoor evaporator coil, ductwork, and condenser fan blades regularly helps keep your HVAC system working efficiently and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it begins to look dirty.
  • Change filters regularly. Replacing or cleaning your air filters every 30–90 days helps air flow efficiently through your system. You should also try to keep debris away from the external sections of your HVAC system as much as possible.
  • Monitor for potential problems. Keep an eye on your system for issues, for example by consistently checking your thermostat and energy bills. This allows you to address problems before they get out of hand.
  • Change the position of your blinds seasonally. During winter, leave your blinds open so your home benefits from passive solar heat. In summer, keep blinds shut to block out heat. Doing both decreases the amount of work your HVAC system must perform.
ServiceCost
Filter Replacement$65-$174
Condensor Cleaning$1,302-$3,907
Thermostat Repair$87-$217
Ductwork Cleaning$417-$1,042

How To Choose a Local HVAC Company

Knowing the right things to look for in an HVAC company is key for a smooth repair or installation. Established providers with certified technicians can offer assurance your HVAC system will deliver consistent coolig and heating year-round.

Compare Multiple Bids

Contact at least three HVAC companies for quotes. Describe the issues and have technicians visit to inspect your system if possible. Compare the companies' explanations, solutions, estimated costs, warranties, and timeframes. Avoid contractors that pressure you or demand payment upfront.

Check Credentials

Look for an HVAC company that employs skilled technicians with the necessary licensure and training. HVAC contractors in all states need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required 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 what kind 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.

In Virginia, HVAC contractors need to have a contractor license with an HVAC specialization from the Department of Professional and Occupational Regulation. A valid Master HVAC Tradesman License (which has both education and experience requirements) is necessary to apply. A license can be class A, B, or C.

  • Class A: Contractor has at least five years of experience and can work on projects valued over $120,000
  • Class B: Contractor has at least three years of experience and can work on projects valued between $10,000 and $120,000
  • Class C: Contractor has at least two years of experience and can work on projects valued under $10,000
Reviewing feedback on Google Reviews, the Better Business Bureau (BBB), Yelp, and similar sites can aid your decision as well. Choose a provider with great reviews and reports of positive experiences from customers.

Understand Work Details

It’s important to understand what the work process is going to look like. For HVAC repairs, the company should list the particular parts that need replacement and why. Confirm that your technician will clean and test the full system afterward to make sure everything is operating properly. When replacing your HVAC, request that the installation company describe the new energy efficiency, estimated installation time, features, brand, and model. Before signing a contract, ask how your provider plans to accurately size the unit for your home and how much it will cost.

Compare Warranties

Reputable HVAC companies stand behind their services with warranties. Look at warranties from different companies, while remembering that more comprehensive coverage is better. Look for the company that provides the most coverage for a reasonable price.

Get Quote in Writing

Get written bids before beginning HVAC work. The quote should outline costs for both materials and labor. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in Leesburg, VA

You should have your HVAC system inspected approximately twice annually. Following an inspection, your technician will inform you if any services are needed. You should also have your system inspected if you start noticing issues such as strange noises, leaks, or unusual smells. If your home has ductwork, it should be inspected every few years.

Usually, you should have your HVAC system inspected in the spring and fall, as these times tend to be less busy. This also helps make sure your system is prepared for the summer and winter, when it probably sees the most use.

You can save energy throughout the year by reducing the amount of power your HVAC system uses to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at a time. You could also consider installing a smart thermostat.

It takes between one and three days to have an HVAC system installed or replaced. If you only need a furnace or a single air conditioning unit, this might take anywhere from a few hours up to two days. This timeline will be determined by the size of your home, the accessibility of your system, and any new issues your technician uncovers.

For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. If your home is larger than 1,000 square feet, central air will be more effective for cooling than window units.

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

There are several ways you can make your HVAC system more energy-efficient:

  • Keep ductwork clean, and clean or change your air filters regularly.
  • Have regular inspections to take care of issues as they arise.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you aren't able to purchase one, try to keep your inside temperature as close to the outside temperature as is comfortable.
  • When you need to replace part of your system, see if there are Energy Star-certified or other environmentally friendly options.

Other Leesburg, VA Home Services

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