HVAC-DMV · Free in-home quote

HVAC replacement and repair in Fairfax, Virginia.

Free in-home quotes for HVAC system replacement, heat pump installation, AC replacement, furnace replacement, ductless mini-splits, and HVAC repair across Fairfax County. We serve every neighborhood from Fairfax City and Vienna to Burke, Centreville, Chantilly, Reston, Herndon, Springfield, McLean, Great Falls, and beyond.

Licensed in Virginia · Maryland · DC
Rated 4.7 / 5 across 391 reviews
Financing $0 down · Home Depot & Lowe's
Estimates Free, in-home, no obligation

HVAC-DMV serves homeowners across Fairfax, VA with HVAC system replacement, heat pump installation, AC replacement, furnace replacement, ductless mini-split installation, and HVAC repair. Free in-home written quotes within 24-48 hours. Same-day or next-morning emergency repair. Installation by licensed contractor McCarthy Services.

Neighborhoods served in Fairfax: Fairfax City, Fairfax Station, Vienna, Oakton, Burke, West Springfield, Centreville, Chantilly, Reston, Herndon, McLean, Great Falls, Annandale, Clifton, Lorton, Kingstowne, Springfield.

About HVAC in Fairfax

Fairfax County is the most populous county in Virginia, with housing stock spanning post-war ramblers in Annandale, mid-century colonials in McLean and Vienna, contemporary builds across Reston and Herndon, and substantial estates in Great Falls and Clifton. The variety means HVAC needs vary dramatically: smaller Annandale ranchers might do best with a 2.5-ton single-stage heat pump, while Great Falls estates often need zoned multi-stage systems or whole-home ductless setups.

Services available in Fairfax

How HVAC-DMV approaches Fairfax installations

Every quote starts with a free in-home assessment. A Comfort Advisor looks at the actual home, runs a Manual J load calculation (proper system sizing rather than "same as the old one"), inspects ductwork condition, identifies any electrical or venting upgrades needed, calculates current rebate eligibility, and leaves a written quote with three tiered options. No high-pressure close, no "today only" pricing tricks. You decide on your own time.

Financing for Fairfax homeowners

HVAC-DMV is an authorized installer for both Home Depot and Lowe's HVAC financing programs. $0 down for qualified buyers. 0% APR promotional plans and extended financing up to 84 months. For most Fairfax homeowners replacing an aging system, monthly payments on the new system are competitive with what the old system costs to operate inefficiently.

Rebates and tax credits for Fairfax homeowners

State and utility rebate programs can provide significant savings on qualifying heat pump and heat pump water heater installations. Local utility programs vary by service territory: Dominion Energy (most of Northern Virginia), Pepco (DC and parts of Montgomery County, MD), BGE (most of Maryland), and Washington Gas all offer additional rebates ranging $300-$2,500 depending on the equipment installed. HVAC-DMV calculates and files all applicable rebates as part of every quote.

Licensed for Fairfax

Active HVAC contractor license in Virginia

HVAC-DMV's licensed installation partner McCarthy Services holds Virginia HVAC Contractor License #2705142947A, Maryland HVAC License .01-117642, and DC License PC40000035. All work in Fairfax is performed under the appropriate jurisdictional license with proper permits and inspections.

Free in-home quote

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Or call (571) 704-7848

Common questions about HVAC Fairfax in the DMV.

HVAC replacement costs in Fairfax, VA typically run $7,500 to $22,000 for standard high-efficiency systems, $9,000 to $28,000 for heat pumps, and $12,000 to $35,000 for complete system replacements (AC + furnace combined). Pricing depends on home size, ductwork condition, equipment tier, and any electrical or venting upgrades required. HVAC-DMV provides free in-home written quotes.

Yes. HVAC-DMV's licensed installation partner McCarthy Services holds active HVAC contractor licenses covering Fairfax, VA: Virginia HVAC Contractor License 2705142947A, Maryland HVAC License .01-117642, and Washington DC License PC40000035.

In-home replacement estimates in Fairfax are typically scheduled within 24 to 48 hours of your initial call. Emergency HVAC repair dispatched same-day or next-morning. Phone calls to (571) 704-7848 are returned within an hour during business hours.

Homeowners in Fairfax qualify for the state and utility rebates from Dominion Energy, Pepco, BGE, or Washington Gas depending on service territory. HVAC-DMV calculates and files all applicable rebates as part of every quote.

Yes. HVAC-DMV is an authorized installer for Home Depot and Lowe's HVAC financing programs across Fairfax and the rest of Fairfax County. $0 down for qualified buyers. 0% APR promotional plans and extended financing up to 84 months.

Common HVAC issues in Fairfax include: aging systems hitting 10-15 years old (peak failure window), R-22 refrigerant systems now phased out and requiring replacement, ductwork degradation in older homes, and undersized systems in finished basements or additions. HVAC-DMV's in-home assessment identifies which apply to your home specifically.

Get a free in-home quote — no obligation.

Call or text (571) 704-7848. A Comfort Advisor schedules a free in-home assessment within 24-48 hours, runs a Manual J load calculation, calculates current state and utility rebates for your zip code, and leaves you with a written quote at three price points. No pressure to decide on the spot.