20 HVAC Repair Contractors in Fremont, CA

3.6 avg rating
1,060 total reviews9 offer 24/7 service
Need emergency service? 16 HVAC providers in Fremont offer 24/7 availability

Top-Rated HVAC Repair Contractors in Fremont

#1

AIS Heating & Air Conditioning

4.9(809 reviews)
24/7 Highly Rated

All four sampled reviewers award 5 stars, with three specifically naming technicians (Fausto, Abel, Leon, Pete) who performed the work. Positive themes include…

4432 Enterprise St suite a, Fremont, CA 94538
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#2

Giant HVAC, Inc

4.9(61 reviews)
43012 Christy St, Fremont, CA 94538
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#3

Heating And Air Experts

5.0(43 reviews)
24/7

All eight sampled reviewers award 5 stars, with three specifically naming technician Moe or Mo. Response speed emerges as a consistent theme: reviewers report…

215 Starlite Way, Fremont, CA 94539
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All HVAC Repair Contractors (20 total)

Chill Heating and Cooling

5.0(42)
24/7

42 reviews with a perfect 5.0-star average, including 7 five-star ratings and one four-star review. Reviewers…

43266 Christy St, Fremont, CA 94538
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Sharkaire

4.7(24)

All five detailed reviews award 5 stars, with reviewers specifically naming Kaya and Robert for their…

4400 Enterprise Pl suit-a, Fremont, CA 94538
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Flash Chimney Fremont and Ducts

5.0(18)

All eight reviewers awarded 5 stars, with Chris and John receiving named recognition for their…

39055 Hastings St, Fremont, CA 94538
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Artspeed RV Mobile Service

4.6(19)
24/7

15 of 19 reviewers gave 5-star ratings, with recurring praise for same-day emergency service and technician…

5117 Xavier Common, Fremont, CA 94555
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A and R Air Conditioning and Heating

4.6(15)

All three available reviews award 5 stars, with customers specifically naming technicians Marko and Julian…

4635 Pardee Ave, Fremont, CA 94538
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Premium AC Repair Fremont CA

5.0(8)
24/7

All 4 client reviews award 5 stars, with reviewers praising project completion ahead of schedule, efficient…

39655 Trinity Way, Fremont, CA 94538
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J & Z

4.5(8)
24/7

Seven of eight reviews award five stars, with customers specifically praising transparent pricing, same-day…

41223 Roberts Ave, Fremont, CA 94538
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TOTO Heating And Cooling

5.0(6)

All 5 reviewers awarded 5-star ratings, with Eli's communication during a parts delay mentioned by one client…

41111 Mission Blvd #105, Fremont, CA 94539
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Flide HVAC & Airduct Cleaning Fremont

5.0(3)

All three reviewers gave 5-star ratings, with two specifically naming the technician who handled their job.…

45570 Industrial Pl #6, Fremont, CA 94538

RCS Mechanical Services

4.0(2)

Two reviewers have rated RCS Mechanical Services at an average of 4.0 stars. One 5-star review from Giovanni…

4161 Ingot St, Fremont, CA 94538
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Ac Heaterman

5.0(1)

The single available review awards Ac Heaterman a perfect 5.0-star rating, indicating high customer…

37539 Glenmoor Dr, Fremont, CA 94536

Bay Area Heat Pump & HVAC – Excellence

5.0(1)

The single five-star review praises the team for professionalism, on-time arrival, clear explanations, and a…

44150 Old Warm Springs Blvd, Fremont, CA 94538
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Impulse Pro

0.0
24/7
2850 Beard Terrace, Fremont, CA 94555
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Greenfriendly HVAC and Plumbing

0.0
36797 Marlowe St, Fremont, CA 94536
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BreezeMaster HVAC

0.0
24/7
34749 Powder River Pl, Fremont, CA 94555
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Services

0.0
3342 Walnut Ave, Fremont, CA 94538

ALL BAY INSULATION & HVAC, INC.

0.0
24/7
3345 Seldon Ct # B, Fremont, CA 94539

HVAC Repair Costs in Fremont

Typical heating and cooling repair costs in Fremont, by component.

ServiceLowAverageHigh
Diagnostic / service call
$74$118$196
Thermostat replacement
$147$270$490
Blower motor replacement
$392$637$1,078
Heat exchanger replacement
$1,470$2,156$3,430
Ignitor replacement (gas furnace)
$147$245$392
Control board replacement
$294$539$882
Full system repair (major)
Multi-component failure
$490$1,176$2,940

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

HVAC Repair in Fremont, CA: What to Expect

Fremont sits within the South Bay metro, where mild Mediterranean weather brings dry summers around 82 F and cool winters near 42 F. Heat waves occasionally push temperatures past 100 F, creating spikes in cooling demand. Five contractors serve the HVAC Repair in Fremont market, collectively holding a 4.9 average rating across 869 reviews, with three offering around-the-clock service.

Pricing reflects a contractor's experience and the specific repair required. A diagnostic or service call runs $74 to $196, while thermostat replacement costs $147 to $490. Blower motor replacement, being more complex, ranges from $392 to $1078. In California, HVAC contractors must hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning license from the Contractors State License Board to perform this work legally.

Technicians Fausto and Abel at AIS Heating & Air Conditioning earn consistent five-star mentions for clear communication and thorough cleanups. J & Z draws praise for transparent pricing and same-day response times, with technicians taking patience to explain repair options. Premium AC Repair Fremont CA completes projects ahead of schedule, and reviewers note noticeable improvements in both home comfort and air quality.

Frequently Asked Questions

HVAC repairs in Fremont range from $74-$3,430 depending on the component. Thermostat replacement runs $150-$500, blower motor $400-$1,100, ignitor $150-$400, and heat exchanger replacement $1,500-$3,500. Diagnostic fees of $75-$200 are typically credited toward the repair if you proceed.

All HVAC Contractors in Fremont, CA

Complete directory of 48 contractors — browse alphabetically

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