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HVAC Services in Fullerton, CA

47 HVAC contractors found

Need emergency service? 15 HVAC providers in Fullerton offer 24/7 availability→
HVAC ServiceAC RepairHVAC RepairAC InstallationHVAC MaintenanceCommercial HVACEmergency HVACAC Replacement

Avis Plumbing and Air

4.7(508)

“Four separate five-star reviews specifically mention technician John or JR, praising his thorough…”

110 E Wilshire Ave Suite G-5, Fullerton, CA 92832
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Evolution Heating and Air Conditioning

4.9(391)
Highly Rated

“All three featured reviewers gave 5-star ratings, with each specifically naming a staff member: Diego…”

699 S State College Blvd Suite K, Fullerton, CA 92831
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Jamison Heating & Cooling Services, Inc.

4.8(377)
Highly Rated

“All four featured reviewers award 5-star ratings, with three specifically mentioning the company's fair…”

3519 W Commonwealth Ave H, Fullerton, CA 92833
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Smartсhoice Heating & Air Repair

4.9(187)
Highly Rated

“Sixteen of eighteen sampled reviews name a specific technician, with Andrii, Alex, Nick, and Max each…”

655 S State College Blvd Unit 29, Fullerton, CA 92831
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Happy Camper Drain Cleaning & Plumbing Repair

5.0(114)
24/7 Highly Rated

“All 113 reviews award five stars, with multiple customers emphasizing Juan's same-day emergency response and…”

1501 N Harbor Blvd #103, Fullerton, CA 92835
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One Hour Heating & Air Conditioning

4.9(73)
24/7

“The 4.9-star average across 70 reviews tells a story of dependable service, with technicians repeatedly…”

4060 N Palm St STE. 602, Fullerton, CA 92835
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Tria Air conditioning Pros

4.9(40)

“All 40 reviews carry 5-star ratings, with customers frequently naming technician Preston for his clear…”

1400 N Harbor Blvd, Fullerton, CA 92835
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Air Mighty Refrigeration and Air Conditioning

4.8(39)
24/7
2522 Pearson Ave, Fullerton, CA 92831
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JC Air Clean Inc.

4.9(27)

“All 27 reviewers gave 4 or 5 stars, with 4 of them specifically naming technicians Jared, Derek, or Roger and…”

4741 E Lambert Rd, Fullerton, CA 92835
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Cool Air Fullerton

5.0(20)
24/7

“Every one of the 18 reviewers awarded 5 stars, and most include specifics rather than vague praise. Four…”

618 E Commonwealth Ave, Fullerton, CA 92831
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Eco Fresh HVAC Inc.

4.8(20)

“All five visible reviews award five stars and cite the same-day completion timeline, whether for a ceiling…”

1945 W Commonwealth Ave STE Q-R, Fullerton, CA 92833
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Spotless Clean Air

4.8(17)

“Every reviewer rated Spotless Clean Air five stars, with 15 total testimonials emphasizing thoroughness and…”

1973 W Malvern Ave, Fullerton, CA 92833
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Rosag HVAC Solutions Fullerton

5.0(14)

“All 12 reviewers award five stars, with six explicitly calling out the company's same-day response capability…”

110 W Wilshire Ave, Fullerton, CA 92832
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Heating & Air Conditioning

4.7(12)

“Eight of nine reviewers awarded five-star ratings to this Fullerton contractor, with seven specifically…”

2430 Artesia Ave, Fullerton, CA 92833
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Cooling & Heating Repair - Fullerton

5.0(9)

“Eight of eight reviews award 5 stars, with three explicitly mentioning same-day service, two praising fair…”

271 E Imperial Hwy #640, Fullerton, CA 92835
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Advanced Climate Technologies

5.0(7)

“Every one of the seven reviews awards five stars, with four explicitly naming owner Jonathan Payne as the…”

505 E Walnut Ave, Fullerton, CA 92832
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Fullerton Heating and Cooling Service

4.3(10)

“All four visible reviews award 5 stars, with customers consistently highlighting on-time arrivals, clear…”

1511 E Orangethorpe Ave, Fullerton, CA 92831
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Air Filter Supply

4.1(10)

“Three of four negative reviews cite broken communication around order readiness: missed callbacks,…”

1107 S Placentia Ave, Fullerton, CA 92831
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Coolsys Refrigeration & HVAC

3.8(12)
24/7

“Three of four reviews rate this contractor at one star, citing dangerous driving incidents involving company…”

4275 Palm Via Ste. 100, Fullerton, CA 92835
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Anthony's Reliable Heating & AC

5.0(6)

“All eight customers left 5-star ratings, with common themes centering on accurate diagnostics and restored…”

320 N Orchard Ave, Fullerton, CA 92833
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Cedar HVAC Services

5.0(6)

“All 8 reviewers awarded 5 stars, citing thoroughness and same-visit resolutions. Three reviews explicitly…”

1860 W Commonwealth Ave, Fullerton, CA 92833
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HVAC: Heating & Air Conditioning Inc

5.0(5)

“All 8 reviewers award a perfect 5 stars, and more than half explicitly praise the same-day or rapid response…”

118 W Wilshire Ave, Fullerton, CA 92832
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Heating & Air-Conditioning

3.7(9)

“Five of eight reviewers awarded five stars, with all positive accounts mentioning prompt arrival and…”

136 N Raymond Ave, Fullerton, CA 92831
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Precision Heating and Air

5.0(4)
24/7

“All four reviews award five stars, with customers specifically praising efficient project timelines, thorough…”

1321 N Harbor Blvd #447, Fullerton, CA 92835
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Air Conditioning & Heating Repair

4.4(5)

“Both reviewers awarded perfect 5-star ratings and independently praised the contractor's honesty and fair…”

1125 W Orangethorpe Ave, Fullerton, CA 92833

Fullerton Appliance Repair

4.0(3)
24/7

“Two of three reviews award 5 stars, praising fast response times and fair dealings. The lone negative review…”

1037 W Orangethorpe Ave, Fullerton, CA 92833
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Quality Heating & Air Conditioning Repair

5.0(2)
24/7

“Both reviewers awarded 5 stars and described a technician who arrived promptly and resolved the problem…”

2501 E Chapman Ave #162, Fullerton, CA 92831
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EcoPath Vent Wash Solutions

4.5(2)

“Both reviewers awarded 4 or 5 stars and use the word professional to describe their experience. One client…”

407 S Pomona Ave, Fullerton, CA 92832
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Refrigeration Unlimited

3.0(4)
24/7

“Two of four reviewers awarded five stars, with Freddy Ventura highlighting exceptional customer service and…”

2466 Fender Ave d, Fullerton, CA 92831
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American Mechanical Services

2.3(6)

“6 customer reviews yield a 2.3-star average rating, with negative feedback citing significantly extended…”

2116 E Walnut Ave, Fullerton, CA 92831

HVAC Service Costs in Fullerton, CA

Pricing ranges across all HVAC services offered in Fullerton.

ServiceTypical RangePrice Points
AC Repair$71–$2,6607 items →
AC Installation$138–$18,4008 items →
AC Replacement$1,932–$14,7205 items →
HVAC Maintenance$15–$7847 items →
HVAC Repair$74–$3,4307 items →
HVAC Service$67–$13,3956 items →
Emergency HVAC$143–$3,3256 items →
Commercial HVAC$2–$76,0007 items →

Prices reflect Pacific coast metro averages based on HomeAdvisor and Angi published cost data. Last updated: April 2026.

HVAC in Fullerton, CA: What Homeowners Should Know

Fullerton sits inside a mild Mediterranean pocket of the Los Angeles basin, with typical summer highs near 84°F and winter lows around 48°F. Inland valleys drive spikes — Santa Ana winds can push temperatures past 100°F and create uneven AC demand across neighborhoods. The market supports about 55 local contractors, averaging a 3.6 rating from 4,786 reviews; many hvac Fullerton providers advertise emergency service and 17 offer 24/7 availability among hvac companies Fullerton.

Service costs in the city span an extreme range, roughly $2 to $76,000, reflecting everything from small repairs to complete system replacements and major retrofits. Licensing is regulated by the California CSLB: contractors must hold the C-20 Warm-Air Heating, Ventilating, and Air-Conditioning license and document four years of recent HVAC experience. That credential and variable pricing shape customer expectations for warranties, parts quality, and project timelines across Fullerton.

Customer highlights aren’t provided in the dataset, so patterns emerge from market signals instead: a modest average rating and a significant number of firms suggest competitive pressure but mixed satisfaction. The presence of overnight service offerings indicates contractors responding to acute cooling needs during heat events. For residents seeking the best hvac Fullerton options, compare licensing, emergency response, and recent reviews rather than relying on reputation alone.

Frequently Asked Questions

Among 47 HVAC contractors serving Fullerton, the top-rated providers average 3.4★ across 1,944 reviews. The highest-ranked companies on this page are sorted by a combination of rating and review volume, so established contractors with consistent quality appear first. Check reviews, licensing, and response time to pick the right fit for your situation.

All HVAC Contractors in Fullerton, CA

Complete directory of 47 contractors — browse alphabetically

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