HVAC Services in Fairfax, VA

Heat Pump Replacement and Installation in Fairfax

Heat pump replacement is the most searched HVAC job in Fairfax, and it is worth planning, because a heat pump heats and cools your home from one system. A good replacement starts with the right size for your house, not with the size of the old unit.

When you call, we look at the age and condition of the current system, the ductwork and the thermostat, and we explain the options and the full cost before any work starts. Financing is available, including 0% APR for up to 18 months on select units. For typical prices, see our heat pump installation cost guide and our heat pump replacement page. We serve homes and businesses across Fairfax County and the rest of Northern Virginia.

Furnace Replacement and Installation in Fairfax

A furnace that is failing, noisy or costing more to repair each winter is a candidate for replacement, and winter is the wrong time to be without heat. We help you decide between repair and replacement, and we explain gas and electric options before you commit.

Gas furnace work in Fairfax County needs a permit and an inspection, and we confirm permit requirements before we start. See our furnace replacement page and our furnace installation cost guide.

AC Repair and Replacement in Fairfax

When your AC stops, you need an answer the same day. We repair air conditioners the day you call, and we tell you honestly whether a repair or a replacement makes more sense. Our site visits start at $90, and most repairs fall between $150 and $300 or more, with a custom quote before complex work starts. Read the full details on our Fairfax AC repair page or see our AC repair cost guide.

24/7 Emergency and Same-Day HVAC Service in Fairfax

A system that fails in a heat wave or on a freezing night cannot wait. We provide same-day service and 24/7 emergency repair in Fairfax, 365 days a year, with no extra charge for evenings, weekends or holidays. We do not quote a fixed arrival time, because it depends on the day and where our technicians are, so call us and we will give you a time when you book.

“In the middle of the worst heatwave in years, my air conditioner suddenly stopped working… I called AVS, and not only did they come out at 11:00 pm that very same evening, just a few hours after I called, they efficiently and professionally diagnosed the problem as a failed capacitor, replaced it, and had the air conditioner running again in just 15 minutes.” Rich, Google review

HVAC Service in the City of Fairfax and Fairfax County

Fairfax is an independent city, and it sits inside Fairfax County, so the rules that apply to your job depend on which side of the line your address is on. We serve both, and our office is about 4 miles from Fairfax City Hall.

For homes in Fairfax County, the county lists new, replacement, repair or conversion of HVAC systems among the projects that need a mechanical building permit, and it recommends that a properly licensed contractor pull the permit. Replacing or installing a gas or oil appliance such as a furnace, boiler or water heater needs a Household Appliance permit and an inspection, even for a like-for-like swap. Fairfax County Land Development Services can be reached at 703-222-0801. Source: Fairfax County Land Development Services.

The City of Fairfax has its own permit office, so confirm requirements with the city if your home is inside the city limits. We confirm permit requirements before we start work.

Need an HVAC Company in Fairfax Today? Call AVS

Whether your AC just stopped, your furnace will not start, or you are planning a heat pump or furnace replacement, one call to AVS gets you a technician from a family-owned company that is based right here in Fairfax. We provide same-day service and 24/7 emergency repair, and there is no extra charge for evenings, weekends or holidays.

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What happens when you call

1. You tell us the problem. Describe what the system is doing, such as warm air, no heat, strange noises or a leak, and tell us your address so we know whether you are in the City of Fairfax or Fairfax County.
2. We book your visit. We offer same-day service and give you a time when you book. For a no-heat or no-cooling emergency, say so and we will treat it as an emergency call.
3. We explain before we repair. The technician diagnoses the problem and explains the repair and the cost before starting. Site visits start at $90, and most repairs fall between $150 and $300 or more, with a custom quote for complex work.

Have this ready if you can (it helps, but you do not need it to call): the age of the system and the brand on the unit, what you noticed and when it started, and whether the system has been serviced before.

Choose the fastest route for your problem

• AC not cooling or blowing warm air: AC repair in Fairfax
• Furnace or heating not working: furnace repair or heating repair
• Heat pump problem: heat pump repair
• Planning a replacement: call for a free replacement estimate and ask about financing, including 0% APR for up to 18 months on select units.

AVS Heating and Air Conditioning, 2800 Dorr Ave, Suite R, Fairfax, VA 22031, about 4 miles from Fairfax City Hall. Phone 703-457-9028. Email avsservice@yahoo.com. Virginia HVAC licence 2705039269A.