12 HVAC Repair Contractors in San Ramon, CA

4.1 avg rating
1,604 total reviews4 offer 24/7 service
Need emergency service? 9 HVAC providers in San Ramon offer 24/7 availability

Top-Rated HVAC Repair Contractors in San Ramon

#1

Chill Heating and Cooling

5.0(1,065 reviews)
24/7 Highly Rated

All five published reviews award 5 stars, with three explicitly naming technician Alex for his speed, precision, and willingness to go above and beyond.…

23 Beta Ct suite f, San Ramon, CA 94583
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#2

ADRIUM service solutions

5.0(168 reviews)
Highly Rated

Every reviewer awarded 5 stars except one 4-star review, with multiple customers specifically mentioning same-day service availability and fair pricing. Andrew…

365 Reflections Cir apt. 22, San Ramon, CA 94583
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#3

Eco Systems Heating & Air Conditioning

4.8(159 reviews)
24/7 Highly Rated

All 159 reviews are positive, with 4.8 stars across the board. Technicians Calderon and Ivan appear in multiple reviews for their professionalism and thorough…

111 Deerwood Rd Ste 200, San Ramon, CA 94583
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All HVAC Repair Contractors (12 total)

VOLTA Heating, Air Conditioning & Appliance Services

5.0(109)
Highly Rated

All 107 reviews award 5 stars, with three featured reviewers specifically naming technician James for his…

420 Canyon Woods Pl # F, San Ramon, CA 94582
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SavvyTeks Heating and Cooling

4.9(56)
24/7

All 56 reviewers award 5 stars, with customer stories repeatedly describing same-day service,…

1000 Harness Cir, San Ramon, CA 94583
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HVAC & Air Conditioning San Ramon

4.7(27)

Five of six detailed reviews award 5 stars, with customers praising same-day emergency response and…

120 Sunset Dr, San Ramon, CA 94583
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Express

4.3(8)

5 of 8 reviews award 5 stars, with customers specifically naming Randy, Eric, and Eric Robinett as…

12821 Alcosta Blvd, San Ramon, CA 94583
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All HVAC Depot LLC

5.0(3)
24/7

All three reviews award five stars and each names a different technician: David (AC repair and thermostat…

2661 Derby Dr, San Ramon, CA 94583
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Legacy Mechanical & Energy Services

3.7(3)

One reviewer awarded 5 stars and described the service as reliable, while the aggregate rating of 3.7 stars…

2603 Camino Ramon Suite 490, San Ramon, CA 94583
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Ferreira Service

5.0(1)

The single client review contributing to the perfect 5-star rating provides no qualitative detail regarding…

2600 Old Crow Canyon Rd #100, San Ramon, CA 94583
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QualitySmith Heating & Air Conditioning

1.2(5)

Every reviewer assigned 1 or 2 stars, with zero positive feedback across all 5 documented experiences. Three…

12667 Alcosta Blvd STE 200, San Ramon, CA 94583
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Positive Heating & Cooling Co

0.0
3000 Executive Pkwy #569, San Ramon, CA 94583
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HVAC Repair Costs in San Ramon

Typical heating and cooling repair costs in San Ramon, 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 San Ramon, CA: What to Expect

San Ramon's position in the inland East Bay places it well beyond the marine cooling influence that keeps coastal Oakland mild. Summer temperatures here regularly climb into the upper 90s, and the 2021 heat dome proved that even inland valleys can spike past 100 F on extreme days. This shifts the traditional HVAC calculus for Bay Area homeowners: what once worked as modest heating in mild winters now demands active cooling during prolonged heat events, plus reliable air quality management during wildfire season. Across the five contractors serving San Ramon, the average rating holds at 4.9 stars from over 1,350 verified reviews, reflecting a market where precision and reliability matter when systems struggle under Inland Valley heat loads.

Service costs in this market track specific to the work required. A diagnostic or service call runs $74 to $196, while thermostat replacement spans $147 to $490 and blower motor replacement ranges from $392 up to $1,078. These figures vary with system age, complexity, and parts availability, but every contractor must carry the California C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license from the CSLB to perform regulated HVAC work legally.

Reviewers repeatedly highlight what separates the top performers. Technicians Alex at Chill Heating and Cooling earns praise for speed and going beyond expectations, while Andrew and Danny at ADRIUM receive explicit credit for same-day availability and fair pricing. James at VOLTA Heating and Air Conditioning stands out for diagnostic clarity and communication. Across these mentions, the consistent thread is contractors who explain the problem, quote honestly, and arrive when promised.

Frequently Asked Questions

HVAC repairs in San Ramon 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 San Ramon, CA

Complete directory of 33 contractors — browse alphabetically

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