HVAC Cost in Herndon, VA in 2026
Most HVAC projects in Herndon, VA cost between $5,000 and $16,000. The typical price is $9,000.
Herndon prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- System size in tons and efficiency rating
- Heat pump versus furnace plus AC
- Ductwork condition and whether it is replaced
- Electrical or gas line changes
Usually included
- Equipment and refrigerant lines
- Installation, startup and commissioning
- New thermostat
- Haul-away of the old unit
Usually extra
- Duct replacement
- Electrical panel upgrades
- Permits and inspections
HVAC contractors in Herndon, VA
Businesses listed on Google near Herndon, VA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Cardinal Plumbing Heating & Air Inc
4.9(3,096 reviews)
104 Carpenter Dr Ste D, Sterling, VA 20164
Meade's Heating and Air
5.0(1,700 reviews)
45975 Nokes Blvd Ste 100, Sterling, VA 20166
Donmar Heating, Cooling & Plumbing
4.9(1,210 reviews)
22900 Shaw Rd #105, Sterling, VA 20166
Cardinal Plumbing Heating & Air Inc
4.9(854 reviews)
464 Herndon Pkwy Ste 216a, Herndon, VA 20170
Vernon The Heating & Cooling Specialist
4.8(952 reviews)
42655 Trade W Dr, Sterling, VA 20166
Marco & Son llc
4.9(585 reviews)
13359 Parcher Ave, Herndon, VA 20170