18 HVAC Repair Contractors in Sunnyvale, CA
Top-Rated HVAC Repair Contractors in Sunnyvale
Same Day Air Conditioning & Heating
“Of six named technicians across reviews, three received 5-star mentions for skill and speed. Positive reviews cite rapid response and diagnostic expertise,…”
Green Tree Household Services
“Every one of the 51 reviews assigns 5 stars, an unusually consistent pattern indicating strong customer satisfaction. Eight reviewed customers describe…”
All HVAC Repair Contractors (18 total)
Around the Clock Service, Inc.
“Among documented reviews, three of four positive ratings commend specific technicians (TJ, Dylan) and swift…”
All Appliance & HVAC Service Inc
“All six available reviews award five stars, with Frank specifically mentioned in three reviews for same-day…”
Precision Air Conditioning & Heating
“Three of eight reviews specifically name individual technicians who provided service, with Felix highlighted…”
ClearVent HVAC Solutions
“Every reviewer awarded a 5-star rating, with customer narratives consistently praising fair pricing and…”
Grumpy's HVAC
“All four featured reviewers award 5 stars, with three specifically naming David and praising his honesty,…”
Spark Heating & Cooling
“Eight of eight reviews award five-star ratings, with no lower scores present to balance the feedback. Common…”
Pacific Coast Trane + Specialty A/C Products
“Four of six reviewers gave five-star ratings, with particular praise for the team's chiller expertise and…”
SwiftBreeze HVAC Solutions
“All five published reviews award the maximum five-star rating, with customers specifically mentioning…”
HVAC All Seasons
“All four reviews award five stars, with two clients specifically naming technicians who exceeded…”
Jim's Air Conditioning Services
“All 4 published reviewers awarded 5 stars, with each describing specific service outcomes rather than general…”
The Air Cleaning HVAC Experts
“All three client reviews award a 5-star rating, with unanimous positive sentiment citing the vent cleaning…”
Convectek Heating and Cooling
“All three reviews award five stars, indicating consistent client satisfaction. Both named reviewers, The HVAC…”
Electrical & Mechanical Solution
“The sole client review awards 5 stars and emphasizes timely arrival during an emergency situation,…”
Quick Heating Cooling
“This contractor has not yet received customer reviews on this directory. Prospective clients seeking feedback…”
HVAC Repair Costs in Sunnyvale
Typical heating and cooling repair costs in Sunnyvale, by component.
| Service | Low | Average | High |
|---|---|---|---|
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 Sunnyvale, CA: What to Expect
Living in the South Bay means dealing with a mild Mediterranean climate where summer temperatures hover around 82 F, but heat pockets can push well past 100 F during aggressive heat waves. That uneven cooling demand creates real stress on residential systems, especially in neighborhoods with older housing stock. Sunnyvale homeowners increasingly seek professional help when their systems struggle under these conditions. The local market responds with 18 licensed contractors serving this area, collectively earning an average rating of 4.3 across nearly 800 consumer reviews, with six offering around-the-clock coverage for emergencies.
Understanding what repairs actually cost helps homeowners budget wisely. A standard diagnostic or service call runs between $74 and $196, while thermostat replacements range from $147 to $490 depending on the model selected. Blower motor replacement, one of the more involved repairs, costs between $392 and $1,078 including parts and labor. California law requires every HVAC contractor to hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license from the state licensing board, ensuring basic competency standards apply to all work performed in occupied dwellings.
Customer feedback reveals consistent themes across top-rated shops. Carlos at Balcom Heating & Air appears specifically in four reviews, praised for honest assessments and same-day service turnaround. Same Day Air Conditioning & Heating draws frequent mentions for rapid response and diagnostic accuracy, with three of their technicians earning individual recognition. Green Tree Household Services maintains a rare perfect rating with all 51 reviews awarding five stars, and eight of those customers detail specific repair scenarios highlighting their reliability. Several reviewers specifically note same-day emergency response as a deciding factor in their satisfaction.
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All HVAC Contractors in Sunnyvale, CA
Complete directory of 42 contractors — browse alphabetically
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All HVAC Contractors in Sunnyvale, CA
Complete directory of 42 contractors — browse alphabetically