The Best HVAC Contractors in California

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Pick the job — we re-rank companies by how customers rated that exact job.

1Nur HVAC★ 5.00 on this job20 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Install thermostat”:Stars on this job 55%5.00★Number of such jobs 25%20Overall Experts Score 20%96Job match= 96Stars are pulled toward the category average (4.90★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.96

2Fuse HVAC, Refrigeration, Electrical & Plumbing★ 5.00 on this job22 jobs reviewedusually $2,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Install thermostat”:Stars on this job 55%5.00★Number of such jobs 25%22Overall Experts Score 20%84Job match= 95Stars are pulled toward the category average (4.90★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.95

3Promax Service Group★ 5.00 on this job5 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Install thermostat”:Stars on this job 55%5.00★Number of such jobs 25%5Overall Experts Score 20%100Job match= 84Stars are pulled toward the category average (4.90★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.84

4Made Simple Heating And Air★ 5.00 on this job3 jobs reviewedusually $2,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Install thermostat”:Stars on this job 55%5.00★Number of such jobs 25%3Overall Experts Score 20%95Job match= 79Stars are pulled toward the category average (4.90★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.79

5All HVAC & General Construction★ 5.00 on this job4 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Install thermostat”:Stars on this job 55%5.00★Number of such jobs 25%4Overall Experts Score 20%71Job match= 77Stars are pulled toward the category average (4.90★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.77

6Same Day Air Conditioning & Heating★ 4.83 on this job6 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Install thermostat”:Stars on this job 55%4.83★Number of such jobs 25%6Overall Experts Score 20%63Job match= 73Stars are pulled toward the category average (4.90★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.73

Job match = this company’s ★ on reviews Google tagged “Install thermostat” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.

What customers said about install thermostat

DDavid4 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a week ago★★★★★

Promax Service Group

Promax provided exceptional professional service for my heat pump and HVAC installation in my San Jose home. Their estimate included every detail and made me feel confident that I was getting everything done correctly and to code. They coordinated the entire permit process and included all the costs of it in the… Read full review

Reasonable priceHeating system installationInstall thermostatHVAC duct & vent installation

Meng4 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited 3 weeks ago★★★★★

Fuse HVAC, Refrigeration, Electri…

⭐⭐⭐⭐⭐ Excellent service from Fuse Service! I recently had Fuse Service install a Daikin 3-Ton heat pump HVAC system, upgrade my electrical panel to 200 amps, and install a 50-gallon high-efficiency heat pump water heater. The entire team was professional, knowledgeable, responsive, and efficient. The work was… Read full review

Paid $2,000+Reasonable priceWater heater installationHeating system installationInstall thermostat

KKarenLocal Guide · 10 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

Nur HVAC

I could not be happier with the work Nur HVAC did. Mine was a large residential job, replacing 2 furnaces and 2 HVAC units. I procured 3 estimates from different companies and Nur provided the most detailed estimate at the lowest price. Communication was good throughout the process and the project was finished on… Read full review

Paid $2,000+Great priceHeating system installationInstall thermostatInstall AC

SSheela2 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 4 months ago★★★★★

Made Simple Heating And Air

Sonny , Jorge and their team did an excellent job of installing Bryant furnace and heatpump system. Good communications, clean work. I recommend them to anyone.

Paid $2,000+Reasonable priceHeating system installationInstall thermostatHVAC duct & vent installation

AAlexander2 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

Promax Service Group

We replaced our old gas furnace and AC with a Mitsubishi heat pump system through Promax Service Group and are really happy with how everything went. They were recommended by friends, and the whole process was easy from the beginning. The team was knowledgeable, professional, and always explained what was happening.… Read full review

Paid $2,000+Great priceHeating system installationInstall thermostatInstall AC

GGordon1 reviewiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

Nur HVAC

Alexey did a fantastic job installing our new furnace and AC unit. The space where our furnace is located is very tight and difficult to work in. Alexey took extra time to make sure everything was done perfectly. He is knowledgeable, professional and extremely thorough. We will definitely use Nur again and we highly… Read full review

Paid $1,600–1,800Reasonable priceHVAC system repairInstall thermostatInstall AC

Overall ratings

Experts Score 0–100iExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of HVAC contractors).

#	Company	ScoreiExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown.	FactorsiFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20.	★iGoogle star rating as shown on Google Maps.	Typical billiMedian bill customers of this company reported in their reviews (needs 3+ priced reviews).
1	Promax Service GroupSunnyvale, CA	A 100iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%100+58.7Reliability 26%99+25.8Value 15%100+15.2Experts Score= 100Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA–AA–	5.00	$1.2k
2	Nur HVACSunnyvale, CA	A 96iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%96+52.4Reliability 24%98+23.8Value 14%100+14.1Replies to reviews 7%81+5.7Experts Score= 96Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.95	$1.1k
3	United HVAC, Plumbing & ElectricalSunnyvale, CA	A 96iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%98+57.5Reliability 26%97+25.3Value 15%90+13.7Craft & service penalty99−0.1Experts Score= 96Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAA–	4.98	$549
4	Your Appliance, Refrigeration & HVAC repairSunnyvale, CA	A 96iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%96+52.4Reliability 24%99+24Value 14%95+13.4Replies to reviews 7%85+6Experts Score= 96Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA–AAA	4.96	$287
5	United HVAC, Plumbing & ElectricalSunnyvale, CA	A 95iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%94+51.3Reliability 24%95+23Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty98−0.2Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.94	$824
6	Made Simple Heating And AirSunnyvale, CA	A 95iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%94+51.3Reliability 24%93+22.5Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty99−0.1Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.95	$1.2k
7	United HVAC, Plumbing & ElectricalSunnyvale, CA	A 88iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%89+48.5Reliability 24%89+21.6Value 14%81+11.5Replies to reviews 7%84+5.9Experts Score= 88Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA–AAA	4.90	$460
8	Fuse HVAC, Refrigeration, Electrical & PlumbingSan Jose, CA	A 84iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%85+46.4Reliability 24%83+20.1Value 14%100+14.1Replies to reviews 7%62+4.4Craft & service penalty85−1.5Experts Score= 84Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAB	4.85	$1.2k
9	All HVAC & General ConstructionSunnyvale, CA	B 71iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%78+42.5Reliability 24%59+14.3Value 14%100+14.1Replies to reviews 7%92+6.5Craft & service penalty35−6.5Experts Score= 71Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	BCDAAA	4.75	—
10	Same Day Air Conditioning & HeatingSunnyvale, CA	B 63iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%72+39.3Reliability 24%65+15.8Value 14%87+12.3Replies to reviews 7%22+1.6Craft & service penalty46−5.4Experts Score= 63Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	BBCAAD	4.71	$135

What jobs cost

What customers paid, from the price Google asks reviewers to report.

HVAC Contractors in California at a glance

How the 10 HVAC contractors we rated in California compare, and what customers praise most.

How we grade

Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.

Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.

Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.

Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.

Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.

Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.