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Honolulu, Hawaii · Heating & furnaces

Heating & furnace contractors in Honolulu, HI

35 heating & furnace contractors in Honolulu, out of 199 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.

Pros
35
Avg. score
31.4
Scored
27

Summary

Data last updated

As of October 15, 2026, the ProComfort Registry lists 35 heating & furnace contractors in Honolulu, Hawaii. Most-listed specialties: air conditioning (34), refrigeration (4), commercial (2). 27 have enough public signals for a Registry Score, averaging 31.4 out of 100; none scores 70 or higher. Together they hold 538 public reviews on Google, Yelp and Facebook. The highest-scored is C S Mechanical, at 67 out of 100. 2 are Featured for 2026. View C S Mechanical.

Counts come straight from the Registry's records. How the Registry Score works

Showing 1–20 of 35

Heating & furnace contractors in Honolulu: at a glance

How many heating & furnace contractors are in Honolulu, Hawaii?
As of October 15, 2026, the ProComfort Registry lists 35 heating & furnace contractors in Honolulu, Hawaii.
Who is the highest-scored heating contractor in Honolulu, Hawaii?
By Registry Score, C S Mechanical (Honolulu, HI) ranks first at 67 out of 100, among 27 scored businesses averaging 31.4. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
How are heating & furnace 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 heating: furnaces, boilers, heat pumps or radiant heat. Tags come from each business's public category and name, so a company can appear under several trades. Heating & furnace contractors across the US