23 HVAC Service Contractors in Herndon, VA
Top-Rated HVAC Service 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 Service Contractors (23 total)
Core IV Therapy
“Four hundred nineteen reviews yield a 4.9-star average, with recurring themes of immediate symptom relief…”
Premier HVAC LLC
“All 243 reviews award 5 stars, an unusually perfect record for an HVAC contractor serving the complex…”
Genesis Chimney Services
“All 211 reviews award 5 stars, with customers frequently citing the team's patience in answering questions…”
Fairfield by Marriott Inn & Suites Herndon Reston
“4 of 5 reviewers mention cleanliness and practical amenities (refrigerator, free WiFi, parking). Positive…”
Herndon Appliance Repair
“Every reviewer awarded 5 stars, with four customers specifically naming technicians Paul, Tony, Nav, and…”
911Air-Care
“126 reviewers collectively award a perfect 5.0 rating, with multiple customers specifically praising…”
Sugarland Shell
“Of 4 detailed reviews, 2 rate the facility 5 stars citing efficient inspections and courteous staff, while 2…”
Ace RV Service & Repair
“All 111 reviews carry 5-star ratings, with customers consistently mentioning technician Ali and praising…”
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…”
Duct Detailing
“All eight sampled reviewers assign five stars, with six specifically praising the lack of hidden fees or…”
M&M Expert Services
“Twenty reviews yield a 4.8-star average with 15 reviewers awarding five stars. Greg appears in six positive…”
CE (Carrier Enterprise)
“Three reviews show a split pattern: one 5-star review praises timely service and helpful staff, while two…”
Air-Tech Systems Inc
“Mixed sentiment reflects divided opinions: one five-star review praises responsiveness and new Carrier…”
Quang's HVAC
“Both reviews award five stars and specifically mention reasonable, non-pressured pricing. One reviewer…”
Carrier Enterprises LLC
“4 reviews yield a 3.3-star average, with one customer praising delivery speed and quality while another…”
Sears Heating and Air Conditioning
“Two of three reviewers awarded one-star ratings, citing concerns around estimate accuracy and recommendation…”
HVAC Service Costs in Herndon
General HVAC service pricing across maintenance, repair, and installation in Herndon.
| Service | Low | Average | High |
|---|---|---|---|
Service call / diagnostic | $75 | $120 | $200 |
Routine tune-up (single system) | $70 | $125 | $200 |
Standard repair (avg) | $150 | $600 | $1,200 |
Major repair (compressor, heat exchanger) | $1,500 | $2,500 | $3,500 |
New system installation (mid-range) | $6,500 | $10,500 | $14,000 |
Full HVAC replacement AC + furnace combined | $11,590 | $13,430 | $14,100 |
Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Service in Herndon, VA: What to Expect
Living near the Potomac means confronting two distinct challenges each year. Summers bring heat indexes above 88 F with persistent humidity that strains cooling systems, while winters drop to around 28 F and demand reliable heating fast. This swing creates constant demand for HVAC Service in Herndon, where eleven contractors compete for homeowner attention. The market appears well-served, with an average rating of 4.4 across more than three thousand reviews, and four companies offering around-the-clock availability for those middle-of-the-night failures when waiting is not an option.
Pricing across the region follows predictable patterns tied to job complexity. A standard service call for diagnostic purposes ranges from $75 to $200, while a routine tune-up for a single system typically falls between $70 and $200. More involved repairs average from $150 up to $1,200 depending on what components require attention. Virginia law adds another layer by requiring contractors to hold either a Class A, B, or C license with an HVA specialty from the state Department of Professional and Occupational Regulation, ensuring that homeowners deal with legitimately qualified professionals rather than fly-by-night operations.
Thecustomer feedback reveals two threads running through the highest-rated local options. Reviewers for Cardinal Plumbing Heating & Air Inc frequently describe technicians arriving quickly during emergencies and taking time to explain what went wrong and what repairs involve. Marco & Son LLC draws similar praise for rapid response, with multiple customers noting same-day arrivals during heat waves or cold snaps. Premier HVAC LLC maintains a perfect five-star average across all 243 reviews, with several clients specifically calling out the technicians by name for their professionalism and thoroughness. Homeowners seeking both speed and clear communication appear to find it with these top performers.