22 HVAC Repair Contractors in Gaithersburg, MD
Top-Rated HVAC Repair Contractors in Gaithersburg
GAC Services
“Four reviewers specifically name individual technicians (Chun, Kevin Bateman, Edwin Sanchez) and describe skills ranging from furnace diagnostics to electrical…”
Michael Bonsby HVAC, Plumbing & Electrical
“Every reviewer awarded 5 stars, with two clients specifically naming their technicians and highlighting detailed diagnostic explanations as distinguishing…”
All HVAC Repair Contractors (22 total)
Parker Pearce Service Experts
“Positive reviews consistently praise same-day technician arrival during temperature emergencies, with one…”
Rod Miller Company
“Every one of 639 reviews rates 5 stars, with six reviewers specifically mentioning technicians by name.…”
Cool Breeze Plumbing, Heating & A/C
“Eight of ten sampled reviewers describe resolution of problems that persisted after attempts by other…”
B&B Air Conditioning & Heating Service
“313 of 340 reviewers awarded five-star ratings, with repeated descriptors including same-day arrival,…”
Atlantic Coastal Cooling and Heating, Inc. (ACCH)
“Five-star ratings dominate the 302 reviews, with technicians Jamie, Billy, and Hank named repeatedly across…”
United Air Temp
“Across 289 reviews, technicians earn consistent praise for arriving on time, explaining repairs clearly, and…”
Sichinava Heating and Air Conditioning
“Every reviewer highlights responsiveness as a defining strength, with three customers specifically noting…”
Mannix Heating and Cooling- Gaithersburg
“One hundred sixty-six reviews yield a 4.9-star average, with all sampled five-star ratings detailing…”
Hecox Home Services LLC
“Four reviewers specifically mention emergency response scenarios involving same-day or same-afternoon…”
Smock Heating & Air
“Every review is 5 stars, with multiple customers emphasizing same-day response and thorough technical…”
ADI Heating & Air Conditioning, LLC
“Four of five detailed reviews specifically name Ronen as the technician providing service, with three…”
Mallick Mechanical Services
“Three of four detailed reviews mention same-day or next-day arrival despite scheduling obstacles like severe…”
Germantown Heating & Air Conditioning
“Three featured reviews yield mixed results: two five-star ratings praise diagnostic skill, same-day…”
Harvey W Hottel, Inc.
“Positive reviews emphasize project efficiency and professional conduct, while the lone 1-star review cites…”
LP
“Eight of eight reviews award five stars, with the remaining two reviewers granting four stars. Four reviewers…”
AAA Residential Services Ltd, Heating & Air Conditioning
“All 4 published reviews award a perfect 5-star rating, indicating strong customer satisfaction. Homeowners…”
Heating & Air Conditioning
“Four of six reviews award five stars, with two reviewers specifically naming individual technicians and…”
Diversified HVAC Services
“Of four detailed negative reviews, three cite billing disputes including unexpected weekend surcharges and…”
HVAC Repair Costs in Gaithersburg
Typical heating and cooling repair costs in Gaithersburg, 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 Gaithersburg, MD: What to Expect
Living near theBaltimore metro area means bracing for sweltering summers that push temperatures into the upper eighties alongside sticky coastal humidity that forces air conditioners to work harder, followed by winters around twenty-seven degrees that test every heating system. These extremes make reliable HVAC Repair in Gaithersburg less of a convenience and more of a necessity for keeping households comfortable year-round. Homeowners in the area can choose from twenty-two licensed contractors who have earned an average rating of 4.7 across more than sixteen thousand reviews, reflecting a competitive market where many technicians have built strong reputations through consistent service.
Maryland law requires all HVAC contractors to hold a Master HVACR License from the state Department of Labor, which establishes a baseline of professional accountability for homeowners to verify. Service costs in the region typically begin with a diagnostic or service call ranging from $75 to $200, while component replacements such as thermostat upgrades run between $150 and $500, and more extensive repairs like blower motor replacement can reach $400 to $1100 depending on the system specifications and labor involved.
Customer feedback points to several distinguishing patterns among top-rated contractors in the area. Presidential, Inc. receives consistent praise for same-day emergency response, with technicians like Rinard and Jose frequently named by reviewers for their professional conduct and thorough approach to repairs. Other high-performing companies similarly feature technicians who take time to explain diagnostic findings in detail, helping homeowners understand the root causes of system failures rather than simply addressing surface symptoms.