80
StrongGaithersburg, Maryland · HVAC
HVAC contractors in Gaithersburg, MD
16 HVAC contractors in Gaithersburg, out of 16 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.
- Pros
- 16
- Avg. score
- 68.4
- Scored
- 16
Summary
Data last updatedAs of October 14, 2026, the ProComfort Registry lists 16 HVAC contractors in Gaithersburg, Maryland. Most-listed specialties: air conditioning (14), heating & furnaces (13), commercial (1), refrigeration (1). 16 have enough public signals for a Registry Score, averaging 68.4 out of 100; 8 score 70 or higher. Together they hold 6,340 public reviews on Google, Yelp and Facebook. The highest-scored is James A. Wheat & Sons Inc., at 86 out of 100. 4 are Featured for 2026. View James A. Wheat & Sons Inc..
Counts come straight from the Registry's records. How the Registry Score works
Featured HVAC contractors in Gaithersburg
78
StrongGaithersburg, MD 20879 4.7(262 reviews)
HVACHeatingA/C
68
Established61
EstablishedShowing 1–16 of 16
86
Exceptional80
StrongGaithersburg, MD 20879 4.7(271 reviews)
HVACHeatingA/C
78
StrongGaithersburg, MD 20879 4.7(262 reviews)
HVACHeatingA/C
78
StrongGaithersburg, MD 20879 4.7(676 reviews)
HVACPlumbingHeatingA/C
76
StrongGaithersburg, MD 20879 4.8(1,465 reviews)
HVACHeatingA/C
75
StrongGaithersburg, MD 20877 4.6(351 reviews)
HVACHeatingA/C
73
StrongGaithersburg, MD 20877 4.8(386 reviews)
HVACPlumbingHeatingA/C
72
Strong69
Established68
EstablishedGaithersburg, MD 20877 4.6(23 reviews)
HVACHeatingA/C
66
EstablishedGaithersburg, MD 20879 4.8(1,423 reviews)
HVACHeatingA/C
63
EstablishedGaithersburg, MD 20879 4.8(50 reviews)
HVACHeatingA/C
61
EstablishedGaithersburg, MD 20879 4.5(16 reviews)
HVACA/CRefrigeration
55
EstablishedGaithersburg, MD 20877 4.0(11 reviews)
HVACCommercial
51
EstablishedGaithersburg, MD 20877 4.0(6 reviews)
HVACHeatingA/C
43
DevelopingHVAC contractors in Gaithersburg: at a glance
- How many HVAC contractors are in Gaithersburg, Maryland?
- As of October 14, 2026, the ProComfort Registry lists 16 HVAC contractors in Gaithersburg, Maryland.
- Who is the highest-scored HVAC contractor in Gaithersburg, Maryland?
- By Registry Score, James A. Wheat & Sons Inc. (Gaithersburg, MD) ranks first at 86 out of 100, among 16 scored businesses averaging 68.4. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
- Which companies are featured in Gaithersburg, Maryland for 2026?
- ProComfort Registry features United Service Specialists, Atlantic Coastal Cooling & Heating, Simply Home Service, Air Conditioning & Refrigeration. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
- How are HVAC contractors in Gaithersburg, Maryland ranked?
- By Registry Score (0-100, from public reviews, digital presence and reach), with records confirmed by their owners listed first. The full method is at https://procomfortregistry.online/methodology.
What this list includes: heating, ventilation and air conditioning businesses (furnaces, heat pumps, A/C, climate control). Tags come from each business's public category and name, so a company can appear under several trades. HVAC contractors across the US