80
StrongGaithersburg, Maryland
HVAC & Plumbing Pros in Gaithersburg, MD
16 businesses serve Gaithersburg. Compare them by Registry Score — reputation, digital presence and reach — with owner-confirmed records listed first.
- Pros
- 16
- Avg. score
- 68.4
- Featured
- 4
Featured · 2026
Featured 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
DevelopingGaithersburg at a glance
- How many HVAC and plumbing companies are in Gaithersburg, MD?
- The ProComfort Registry lists 16 heating, cooling and plumbing businesses serving Gaithersburg: 16 offering HVAC and 2 offering plumbing (some do both).
- What is the average Registry Score in Gaithersburg?
- Rated companies in Gaithersburg average 68.4 out of 100. 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 for 2026?
- ProComfort Registry features United Service Specialists, Atlantic Coastal Cooling & Heating, Simply Home Service, Air Conditioning & Refrigeration in Gaithersburg. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
- How are Gaithersburg companies ranked?
- By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.