Ratings sourced from Google Business Profile · Last refreshed July 2026
Hvacs · Fullerton, CA
Top-rated HVAC company in Fullerton with a near-perfect 4.9★ from 69 reviews.
Listing data last updated May 4, 2026 · sourced from public Google Business Profile data
69 customer ratings on Google
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At 4.9★ from 69 ratings, One Hour Heating & Air Conditioning rates about even with the 4.9★ average of the 6 nearest hvacs we track in Fullerton.
Evolution Heating and Air Conditioning
1334 E Orangethorpe Ave, Fullerton, CA 92831, USA
Cool Air Fullerton
618 E Commonwealth Ave, Fullerton, CA 92831, USA
Smartсhoice Heating & Air Repair
655 S State College Blvd Unit 29, Fullerton, CA 92831, USA
HVAC: Heating & Air Conditioning Inc
118 W Wilshire Ave, Fullerton, CA 92832, USA
Penguin Heating and Air
940 S Placentia Ave # L, Placentia, CA 92870, USA
Avis Plumbing and Air
110 E Wilshire Ave Suite G-5, Fullerton, CA 92832, USA