67
EstablishedHonolulu, Hawaii · Commercial
Commercial HVAC & plumbing contractors in Honolulu, HI
19 commercial HVAC & plumbing contractors in Honolulu, out of 199 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.
- Pros
- 19
- Avg. score
- 43.5
- Scored
- 18
Summary
Data last updatedAs of October 15, 2026, the ProComfort Registry lists 19 commercial HVAC & plumbing contractors in Honolulu, Hawaii. Most-listed specialties: air conditioning (5), heating & furnaces (2), refrigeration (1). 18 have enough public signals for a Registry Score, averaging 43.5 out of 100; none scores 70 or higher. Together they hold 349 public reviews on Google, Yelp and Facebook. The highest-scored is C S Mechanical, at 67 out of 100. 4 are Featured for 2026. View C S Mechanical.
Counts come straight from the Registry's records. How the Registry Score works
Showing 1–19 of 19
63
Established62
Established55
Established54
Established52
Established48
DevelopingHonolulu, HI 96813 3.7(7 reviews)
HVACHeatingCommercial
47
Developing45
Developing43
Developing40
DevelopingHonolulu, HI 96819 3.7(7 reviews)
HVACA/CCommercial
40
DevelopingHonolulu, HI 96813 4.2(1 reviews)
HVACCommercial
40
DevelopingHonolulu, HI 96826 4.2(2 reviews)
HVACCommercial
39
Developing38
DevelopingHonolulu, HI 96819 3.6(10 reviews)
HVACCommercial
24
Developing18
Developing8
Developing—
Not yet ratedCommercial HVAC & plumbing contractors in Honolulu: at a glance
- How many commercial HVAC & plumbing contractors are in Honolulu, Hawaii?
- As of October 15, 2026, the ProComfort Registry lists 19 commercial HVAC & plumbing contractors in Honolulu, Hawaii.
- Who is the highest-scored commercial HVAC or plumbing contractor in Honolulu, Hawaii?
- By Registry Score, C S Mechanical (Honolulu, HI) ranks first at 67 out of 100, among 18 scored businesses averaging 43.5. 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 Honolulu, Hawaii 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