7 HVAC Repair Contractors in Herndon, VA
Top-Rated HVAC 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 HVAC Repair Contractors (7 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…”
HVAC Repair Costs in Herndon
Typical heating and cooling repair costs in Herndon, by component.
| Service | Low | Average | High |
|---|---|---|---|
Diagnostic / service call | $75 | $120 | $200 |
Thermostat replacement | $150 | $275 | $500 |
Blower motor replacement | $400 | $650 | $1,100 |
Heat exchanger replacement | $1,500 | $2,200 | $3,500 |
Ignitor replacement (gas furnace) | $150 | $250 | $400 |
Control board replacement | $300 | $550 | $900 |
Full system repair (major) Multi-component failure | $500 | $1,200 | $3,000 |
Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Repair in Herndon, VA: What to Expect
Herndon experiences the kind of swing that tests any home's climate control. Summers along the Potomac bring heat and humidity pushing daytime highs near 88 F, while winters settle around 28 F, keeping heating systems working through months of cold snaps. This distinct seasonal push makes reliable HVAC repair in Herndon a practical necessity for most homeowners. Seven licensed contractors serve the metro area, collectively maintaining an average rating of 4.6 stars across more than two thousand customer reviews.
Service calls run $75-$200 for diagnostics, with component replacements adding significantly to that foundation. Thermostat replacement ranges $150-$500, while blower motor replacement, the more involved repair, ranges $400-$1100. Virginia law requires these specialists to hold either a Class A, B, or C contractor license with an HVA specialty classification from the Department of Professional and Occupational Regulation, confirming they meet state standards for the work homeowners need.
When systems fail, response time and communication make the difference according to local reviews. Customers repeatedly highlight Cardinal Plumbing Heating & Air Inc for resolving emergency heating failures during extreme cold with technicians arriving quickly and explaining issues clearly. Marco & Son LLC draws similar praise for same-day arrivals during heat waves and cold snaps, with multiple reviewers noting the crews that return year after year. Premier HVAC LLC maintains a 5.0 average across 243 reviews, with eight separate customers specifically mentioning the technicians by name, a level of consistency uncommon in Northern Virginia's competitive market.