80
StrongGaithersburg, Maryland · Air conditioning
Air conditioning contractors in Gaithersburg, MD
14 air conditioning contractors in Gaithersburg, out of 16 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.
- Pros
- 14
- Avg. score
- 68.1
- Scored
- 14
Summary
Data last updatedAs of October 14, 2026, the ProComfort Registry lists 14 air conditioning contractors in Gaithersburg, Maryland. Most-listed specialties: heating & furnaces (12), refrigeration (1). 14 have enough public signals for a Registry Score, averaging 68.1 out of 100; 7 score 70 or higher. Together they hold 5,436 public reviews on Google, Yelp and Facebook. The highest-scored is United Service Specialists, at 80 out of 100. 4 are Featured for 2026. View United Service Specialists.
Counts come straight from the Registry's records. How the Registry Score works
Featured air conditioning contractors in Gaithersburg
78
StrongGaithersburg, MD 20879 4.7(262 reviews)
HVACHeatingA/C
68
Established61
EstablishedShowing 1–14 of 14
80
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
51
EstablishedGaithersburg, MD 20877 4.0(6 reviews)
HVACHeatingA/C
43
DevelopingAir conditioning contractors in Gaithersburg: at a glance
- How many air conditioning contractors are in Gaithersburg, Maryland?
- As of October 14, 2026, the ProComfort Registry lists 14 air conditioning contractors in Gaithersburg, Maryland.
- Who is the highest-scored air conditioning contractor in Gaithersburg, Maryland?
- By Registry Score, United Service Specialists (Gaithersburg, MD) ranks first at 80 out of 100, among 14 scored businesses averaging 68.1. 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 air conditioning 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: businesses whose public category or name points to air conditioning or cooling. Tags come from each business's public category and name, so a company can appear under several trades. Air conditioning contractors across the US