8 AC Repair Contractors in Herndon, VA
Top-Rated AC Repair Contractors in Herndon
Cardinal Plumbing Heating & Air Inc
“Four reviewers describe emergency situations resolved quickly, including heating failures during extreme cold snaps, while five-star ratings consistently…”
Marco & Son llc
“With 539 reviews averaging 4.9 stars, reviewers consistently mention rapid response during system failures, with multiple customers noting same-day arrival…”
All AC Repair Contractors (8 total)
Herndon Appliance Repair
“Every reviewer awarded 5 stars, with four customers specifically naming technicians Paul, Tony, Nav, and…”
Fairfax Cooling & Heating Company
“Four of five detailed reviewers specifically mention receiving same-day or same-hour service visits, with…”
Aviles heating & air conditioning
“Multiple reviewers describe emergency same-day service with same-hour arrival, and five-star reviews…”
Air-Tech Systems Inc
“Mixed sentiment reflects divided opinions: one five-star review praises responsiveness and new Carrier…”
AC Repair Costs in Herndon
Typical repair costs for Herndon homeowners, by problem type.
| Service | Low | Average | High |
|---|---|---|---|
Diagnostic / service call Usually credited toward repair | $75 | $120 | $200 |
Refrigerant recharge (R-410A) | $150 | $350 | $700 |
Capacitor replacement | $120 | $250 | $450 |
Fan motor replacement | $250 | $450 | $700 |
Compressor replacement | $800 | $1,800 | $2,800 |
Evaporator coil repair | $400 | $900 | $1,500 |
Labor (hourly rate) Per hour during business hours | $75 | $110 | $150 |
Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Repair in Herndon, VA: What to Expect
Summers in Herndon push toward 88 degrees with humidity lingering off the Potomac, while winters settle near 28 degrees and demand reliable heating. This back-and-forth strain wears on AC and heat pump systems season after season, turning routine maintenance into something homeowners count on. The market here supports eight HVAC contractors with an average rating near 4.3 based on roughly two thousand reviews, and about half of them field calls around the clock.
Repair costs in this market operate within clear ranges. A diagnostic visit runs $75 to $200, while recharging refrigerant in a modern system carries a price tag between $150 and $700 depending on the unit size. Capacitor replacements sit between $120 and $450, and every contractor handling these jobs in Virginia must hold an active Class A, B, or C license with the HVA specialty designation from the state Department of Professional and Occupational Regulation.
The review patterns tell a consistent story. Marco and Son arrives same-day during heat waves and cold snaps, earning praise for speed when systems fail unexpectedly. Cardinal Plumbing Heating & Air resolves heating emergencies during bitter cold stretches and earns citations for technicians who explain everything clearly. Premier HVAC carries an unusual perfect rating across more than two hundred reviews, with clients repeatedly referencing specific technicians by name.