77
StrongEl Cajon, CA 92020 4.9(430 reviews)
HVACHeatingCommercial
El Cajon, California · Commercial
Commercial HVAC & plumbing contractors in El Cajon, CA
5 commercial HVAC & plumbing contractors in El Cajon, out of 45 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.
- Pros
- 5
- Avg. score
- 57
- Scored
- 5
Summary
Data last updatedAs of October 14, 2026, the ProComfort Registry lists 5 commercial HVAC & plumbing contractors in El Cajon, California. Most-listed specialties: heating & furnaces (3), air conditioning (2). 5 have enough public signals for a Registry Score, averaging 57 out of 100; 2 score 70 or higher. Together they hold 736 public reviews on Google, Yelp and Facebook. The highest-scored is Liberty Mechanical Inc., at 77 out of 100. 2 are Featured for 2026. View Liberty Mechanical Inc..
Counts come straight from the Registry's records. How the Registry Score works
Showing 1–5 of 5
76
StrongEl Cajon, CA 92020 4.8(286 reviews)
HVACHeatingA/CCommercial
47
DevelopingEl Cajon, CA 92020 4.3(3 reviews)
HVACCommercial
44
DevelopingEl Cajon, CA 92020 3.5(8 reviews)
HVACCommercial
41
DevelopingEl Cajon, CA 92021 4.2(9 reviews)
HVACHeatingA/CCommercial
Commercial HVAC & plumbing contractors in El Cajon: at a glance
- How many commercial HVAC & plumbing contractors are in El Cajon, California?
- As of October 14, 2026, the ProComfort Registry lists 5 commercial HVAC & plumbing contractors in El Cajon, California.
- Who is the highest-scored commercial HVAC or plumbing contractor in El Cajon, California?
- By Registry Score, Liberty Mechanical Inc. (El Cajon, CA) ranks first at 77 out of 100, among 5 scored businesses averaging 57. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
- How are commercial HVAC & plumbing contractors in El Cajon, California 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 commercial, industrial or mechanical contracting. Tags come from each business's public category and name, so a company can appear under several trades. Commercial HVAC & plumbing contractors across the US