HVAC Services in Leesburg

Dependable Heating & AC Repair, Replacement, & Maintenance Services in Leesburg & the Surrounding Areas

Air Treatment Heating & Cooling is a family-owned and operated business serving Leesburg, VA. We have been providing outstanding service to Loudoun County & the surrounding area for over 58 years. We understand that when your heating or air conditioning system is not working, life can get uncomfortable and uneasy. Air Treatment takes pride in being the place where quality and price meet.

You can expect ATC to:

• Schedule an Appointment that is convenient for you
• Provide same day service for break downs
• Do a thorough evaluation of your system and provide recommendations and pricing before we do any work.
• Take great care of your home, with precautions like shoe covers, drop cloths, and thorough cleanup.

Because we have worked on homes throughout Leesburg and Loudoun County for decades, we understand how the local climate, from humid summers to cold winters, can put stress on your heating and cooling equipment. When you call us for an HVAC service Leesburg homeowners trust, we take the time to listen to what is happening in your home, explain your options in clear language, and help you choose repairs or improvements that fit your comfort goals and budget. Our goal is to make the process simple and low-stress so you can get back to enjoying a comfortable home.

If your system is older, unreliable, or struggling to keep up with seasonal temperature swings, we can also talk with you about whether repair or replacement makes more sense for your situation. Many homeowners in Leesburg live in a mix of historic properties and newer construction, and each style of home can have different airflow, insulation, and electrical considerations. By carefully evaluating these details, we can recommend whether targeted repairs, upgrades, or a full HVAC replacement project will provide the best long-term value and comfort.

Several signs can indicate that your air conditioning system requires repair.

Here are some common signs to look out for:​​​

• Weak Airflow: Reduced airflow from vents.
• Warm Air: The air conditioner blows warm air instead of cool.
• Strange Noises: Unusual sounds like grinding or squealing.
• Leaking or Moisture: Water or refrigerant leaks around the unit.
• Unpleasant Odors: Foul smells when the AC is running.
• High Humidity: Inability to control indoor humidity.
• Frequent Cycling: AC turns on and off frequently.
• Increased Energy Bills: A sudden spike in energy costs.
• Ice Formation: Ice on the refrigerant lines or inside the unit.
• Age of System: Older AC units may show signs of wear and tear.

When you notice one or more of these issues, it is usually best to have a professional look at your system before the problem gets worse or leads to a breakdown on a hot Leesburg afternoon. We walk you through what we find, explain which components are affected, and outline repair options so you can make an informed decision. Many homeowners appreciate that we focus on long-term reliability, not just a quick fix, which is why so many choose us for HVAC repair service when comfort is on the line.

HVAC Installation Options for Leesburg Homes

When repair costs start to add up or your system can no longer keep your home comfortable, it may be time to consider a new installation. We help you compare different system types and efficiency levels so you can choose equipment that fits your home, lifestyle, and budget. In Leesburg, building styles range from townhomes to larger single-family houses, and we take into account factors like square footage, insulation, and layout to recommend the right capacity and configuration. Our goal is to guide you through each step so your new system is a good match for both our regional climate and your long-term plans for the property.

Before any work begins, we perform a detailed assessment of your existing equipment, ductwork, and electrical service to make sure everything is ready for a safe and reliable upgrade. We explain how different features, such as variable-speed blowers or zoning, can improve comfort from season to season along the Potomac River corridor where temperatures and humidity can change quickly. When you choose us for your next HVAC installation project, you can expect clear communication, organized scheduling, and respectful care for your home from the first visit through final system start-up.

Get in touch with us online or give us a call at (703) 270-0881 to schedule a Leesburg HVAC service appointment today! Check out our reviews!