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Best HVAC & Furnace Repair Services in Leesburg

Our Recommended Top 3

We did the research for you!

  • Licensing
  • User Reviews
  • Mystery Shopping Calls

Our goal is to connect people with the best local professionals. We scored Leesburg HVAC & Furnace Repair Services on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.



3Top Picks

Learn about our selection process.


featured provider = Featured Provider

Ashburn, VA 20147 Rating

Review Sources

4.5 (29)

Why choose this provider?

Relax Air is one of the most dependable heating, ventilation, and air-conditioning services providers in Ashburn. The firm responds to commercial and residential HVAC emergencies 24/7, and it has three locations to cover various neighborhoods in the D.C. metro. The company commits to delivering quality workmanship at affordable prices, and some of the tasks are high-efficiency A/C unit installation, air purifier replacement, thermostat upgrading, evaporator coil troubleshooting, humidifier repair, and heat pump tune-up. Relax Air has been part of the industry for more than 25 years, and it is a local establishment that knows how to deal with climate-control and indoor air quality issues in the region. The team also engages in preventive maintenance to help minimize the risk of untimely equipment breakdowns.

  • Air Conditioning
  • Tune Up
  • Thermostats

Sterling, VA 20166 Rating

Review Sources

4.9 (32)
5.0 (9)

Why choose this provider?

Pars Heating & Air Conditioning is a team of Virginia Class A HVAC Contractors dedicated to being the local source for prompt, reliable, and affordable service. When customers need fast air conditioner, furnace, boiler, or humidifier repairs, the company’s technicians provide courteous and punctual response to get systems up and running so customers can relax in comfort. The company also specializes in serving and installing geothermal systems, perfect for customers that want to see real savings on energy bills by using the power of the earth to harness dependable cooling and heat. No matter the customer’s needs, from regular maintenance to new construction installations, the friendly staff at Pars Heating & Air Conditioning are ready to go the extra mile to ensure 100% satisfaction from beginning to end.

  • Air Conditioning
  • Furnaces
  • Tune Up

Leesburg, VA 20176 Rating

Why choose this provider?

Tyson’s Heating & Air Conditioning is an insured and licensed HVAC service provider in Leesburg that covers all of Northern Virginia. The company pledges to use supplies made in the United States, and it support the industry’s go-green movement by applying ecologically sound business practices, such as recycling cardboards, compressors, motors, and other materials. The owner has at least two decades of experience in the field, and he holds Class A contractor and master technician licenses, as well as a US Environmental Protection Agency certification. The team consists of seasoned installation, repair, and maintenance professionals, and it commits to delivering timely, superior workmanship and cleaning up the site upon job completion. Tyson’s Heating & Air Conditioning provides eco-smart advice to clients, including tips on reducing energy bills.

  • Air Conditioning
  • Furnaces
  • Tune Up


  • How do residential HVAC systems work?

    Central HVAC systems use ductwork and mechanical blowers to deliver heating and cooling across a home’s primary living areas. Refrigerant-based systems, such as heat pumps and air conditioners, use pressurized gas that raises or lowers the temperature by absorbing heat. Their principal components include the evaporator coil, compressor, condenser coil, and blower. Furnaces generate heat by burning fuel, such as oil, propane, or natural gas. Energy from the burners is captured by a heat exchanger, and a flue exhausts combustion byproducts outdoors. Nowadays, homeowners can choose between dual-fuel systems, ductless heat pumps, and variable-speed models that provide enhanced comfort and efficiency.

  • How often do I need to schedule HVAC service for my system?

    Central heating and cooling systems should be serviced annually in the spring and fall. Air conditioners should be inspected every spring; furnaces should be tuned up in the fall, and heat pumps need to be serviced twice per year. Scheduling maintenance early in the season can help homeowners prevent breakdowns and avoid the rush.

  • Why do HVAC systems need regular maintenance?

    Preventive maintenance for HVAC equipment is just as important as an oil change for a car. Regular service visits increase the system’s efficiency, prevent unnecessary wear and tear, and detect problems before they worsen. For optimal results, technicians inspect all electrical and mechanical components. This type of maintenance extends the system’s lifespan, prevents safety hazards, and helps homeowners enjoy long- and short-term savings.

  • What’s the best way to care for an HVAC system in a multifamily investment property?

    HVAC maintenance helps landlords retain quality tenants and control their ownership costs. For best results, centralized and decentralized heating and cooling systems should be serviced in the spring and fall. Technicians can lubricate moving parts, measure refrigerant levels, clean the coils, and check the belts and bearings. Landlords should also consider supplying new air filters to tenants to prevent unnecessary wear and tear, and unit breakdowns related to restricted airflow.

  • What are the signs of a broken HVAC system?

    Heating and cooling systems contain hundreds of parts, which means that almost anything can go wrong. Some warning signs are obvious. For example, if the air conditioner is blowing hot air or if the furnace won’t shut off, it’s time to call a professional. Other malfunctions can cause subtle decreases in comfort and efficiency. Regardless of the problem, responding quickly is generally the best way to avoid more significant repairs and expenses. Homeowners can protect themselves by recognizing the following warning signs:

    • Unusually high energy bills
    • Excessive mechanical noise
    • Starting difficulties
    • Sudden shutdowns
    • Continuous airflow
    • Temperature imbalances
    • High humidity
    • Unpleasant odors
    • Ice buildup on the coils
    • Leaks or water damage

  • Does a home warranty cover HVAC repairs?

    Yes, many home warranty companies pay for HVAC repairs. This type of coverage may be standard or included as an optional add-on. In most cases, homeowners are responsible for an initial service fee. If the unit cannot be repaired, the company may pay for a replacement.

  • Will replacing the HVAC system increase my home’s value?

    While most homeowners only recoup 35% to 50% of their installation costs, a new HVAC system can be a major selling point that attracts potential buyers and results in a faster sale. The benefits depend on the local climate, the type of market, and the condition of the existing system. Aging or poorly maintained equipment may encourage buyers to submit lower offers, especially if problems are revealed during an inspection.

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