85
ExceptionalFullerton, CA 92833 4.8(507 reviews)
HVACHeatingA/C
Fullerton, California
HVAC & Plumbing Pros in Fullerton, CA
51 businesses serve Fullerton. Compare them by Registry Score — reputation, digital presence and reach — with owner-confirmed records listed first.
- Pros
- 51
- Avg. score
- 48.4
- Featured
- 6
Featured · 2026
Featured in Fullerton
72
Strong71
StrongFullerton, CA 92831 4.9(264 reviews)
HVACHeatingA/C
69
Established66
EstablishedFullerton, CA 92832 4.7(64 reviews)
HVACHeatingA/C
65
EstablishedShowing 1–1 of 1
92
ExceptionalFullerton, CA 92831 4.9(1,827 reviews)
PlumbingWater heaters
Fullerton at a glance
- How many HVAC and plumbing companies are in Fullerton, CA?
- The ProComfort Registry lists 51 heating, cooling and plumbing businesses serving Fullerton: 50 offering HVAC and 4 offering plumbing (some do both).
- What is the average Registry Score in Fullerton?
- Rated companies in Fullerton average 48.4 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 Fullerton for 2026?
- ProComfort Registry features Jamison Heating & Cooling Services, Horton's Heating & Air, Evolution Heating And Air Conditioning, Air Revolution Heating & Cooling, HVAC: Heating & Air Conditioning Inc, Cool Air Fullerton in Fullerton. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
- How are Fullerton companies ranked?
- By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.