45 AC Repair Contractors in Fullerton, CA

4.6 avg rating
3,552 total reviews11 offer 24/7 service
Need emergency service? 19 HVAC providers in Fullerton offer 24/7 availability

Top-Rated AC Repair Contractors in Fullerton

#1

The Water Heater Warehouse

4.9(1,311 reviews)
Highly Rated

Across five recent reviews, every customer awarded five stars and specifically mentioned either Chris Thorne or the installation crew for professionalism and…

218 S Berkeley Cir, Fullerton, CA 92831
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#2

Avis Plumbing and Air

4.7(508 reviews)

Four separate five-star reviews specifically mention technician John or JR, praising his thorough diagnostics, patient explanations, and fair pricing on both…

110 E Wilshire Ave Suite G-5, Fullerton, CA 92832
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#3

Evolution Heating and Air Conditioning

4.9(391 reviews)
Highly Rated

All three featured reviewers gave 5-star ratings, with each specifically naming a staff member: Diego (owner), Rose (manager), Brian (sales), and Ricky…

699 S State College Blvd Suite K, Fullerton, CA 92831
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All AC Repair Contractors (45 total)

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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Bestrux Mobile Truck & Trailer Road Service

4.8(205)
24/7 Highly Rated

All eight reviewed customers awarded 5-star ratings, with six reviews specifically citing response times…

1526 E Walnut Ave Ste, B, Fullerton, CA 92831
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Mitch Clemmons Plumbing

4.9(142)
Highly Rated

All five-star reviewers mention specific technicians by name, with Steven Cruz and Glen each appearing in…

2003 Raymer Ave suite a, Fullerton, CA 92833
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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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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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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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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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Green Savings Solutions Inc.

3.5(11)
24/7

4 of 6 visible reviewers gave Green Savings Solutions a five-star rating, with most positive mentions citing…

2501 E Chapman Ave #150, Fullerton, CA 92831
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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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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

AC Repair Costs in Fullerton

Typical repair costs for Fullerton homeowners, by problem type.

ServiceLowAverageHigh
Diagnostic / service call
Usually credited toward repair
$71$114$190
Refrigerant recharge (R-410A)
$143$333$665
Capacitor replacement
$114$238$428
Fan motor replacement
$238$428$665
Compressor replacement
$760$1,710$2,660
Evaporator coil repair
$380$855$1,425
Labor (hourly rate)
Per hour during business hours
$71$105$143

Prices reflect Pacific coast metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Repair in Fullerton, CA: What to Expect

Fullerton’s place in the Los Angeles basin means temperate winters and warm summers, but inland heat and Santa Ana winds send temperatures well past 100°F on occasion, driving spikes in demand for cooling service. With about 40 contractors serving the area, an average rating of 3.4 from 3,664 reviews and 14 firms offering 24/7 response, ac-repair Fullerton is a year-round local need.

Published line-item cost data wasn’t provided, so homeowners should expect pricing to vary with system size, refrigerant type, parts availability and emergency call fees. Labor and replacement parts typically dominate final invoices. Make sure any contractor holds the California C-20 HVAC license from the CSLB before work begins; that license requirement is the baseline for legal and insurance protections in repairs and installs.

Customer highlights weren’t included in the brief, but the moderate average rating suggests a mixed market: some contractors deliver reliable response times and clear estimates, while others draw complaints about communication or surprise charges. Prioritize licensed technicians, written estimates, warranties on parts and labor, and verify credentials with the CSLB. Availability during heatwaves and transparent emergency pricing are recurring priorities for Fullerton residents.

Frequently Asked Questions

AC repair in Fullerton typically costs $71-$2,660 depending on the problem. Diagnostic calls run around $75-$200, refrigerant recharges $150-$700, capacitor replacement $120-$450, and compressor replacement $800-$2,800. Most contractors apply the diagnostic fee toward the final repair cost if you proceed.

All HVAC Contractors in Fullerton, CA

Complete directory of 56 contractors — browse alphabetically

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