80
StrongDundalk, MD 21222 4.9(4,741 reviews)
HVACHeatingA/C
Dundalk, Maryland · HVAC
HVAC contractors in Dundalk, MD
9 HVAC contractors in Dundalk, out of 9 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.
- Pros
- 9
- Avg. score
- 64.4
- Scored
- 7
Summary
Data last updatedAs of October 14, 2026, the ProComfort Registry lists 9 HVAC contractors in Dundalk, Maryland. Most-listed specialties: heating & furnaces (6), air conditioning (5), commercial (1). 7 have enough public signals for a Registry Score, averaging 64.4 out of 100; 4 score 70 or higher. Together they hold 5,343 public reviews on Google, Yelp and Facebook. The highest-scored is Standard Heating & Air Conditioning Contractrs, at 80 out of 100. 4 are Featured for 2026. View Standard Heating & Air Conditioning Contractrs.
Counts come straight from the Registry's records. How the Registry Score works
Featured HVAC contractors in Dundalk
77
Strong70
Strong65
EstablishedShowing 1–9 of 9
80
StrongDundalk, MD 21222 4.9(4,741 reviews)
HVACHeatingA/C
77
StrongDundalk, MD 21222 4.5(184 reviews)
HVACHeatingA/C
70
StrongDundalk, MD 21222 4.7(192 reviews)
HVACHeatingA/C
70
Strong67
EstablishedDundalk, MD 21222 4.7(89 reviews)
HVACPlumbingHeating
65
Established22
Developing—
Not yet rated—
Not yet ratedHVAC contractors in Dundalk: at a glance
- How many HVAC contractors are in Dundalk, Maryland?
- As of October 14, 2026, the ProComfort Registry lists 9 HVAC contractors in Dundalk, Maryland.
- Who is the highest-scored HVAC contractor in Dundalk, Maryland?
- By Registry Score, Standard Heating & Air Conditioning Contractrs (Dundalk, MD) ranks first at 80 out of 100, among 7 scored businesses averaging 64.4. 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 Dundalk, Maryland for 2026?
- ProComfort Registry features Standard Heating & Air Conditioning Contractrs, ABC Cooling & Heating, Reliability Home Services, Tack Mechanical LLC. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
- How are HVAC contractors in Dundalk, 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