The Best HVAC Contractors in Sunnyvale, CA

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

1Nur HVAC★ 5.00 on this job51 jobs reviewedusually $2,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Install AC”:Stars on this job 55%5.00★Number of such jobs 25%51Overall Experts Score 20%96Job match= 98Stars 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.98

2Made Simple Heating And Air★ 4.92 on this job12 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Install AC”:Stars on this job 55%4.92★Number of such jobs 25%12Overall Experts Score 20%95Job match= 83Stars 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.83

3All HVAC & General Construction★ 5.00 on this job13 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Install AC”:Stars on this job 55%5.00★Number of such jobs 25%13Overall Experts Score 20%71Job match= 83Stars 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.83

4Promax Service Group★ 5.00 on this job5 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Install AC”:Stars on this job 55%5.00★Number of such jobs 25%5Overall Experts Score 20%100Job match= 82Stars 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.82

5Same Day Air Conditioning & Heating★ 5.00 on this job4 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Install AC”:Stars on this job 55%5.00★Number of such jobs 25%4Overall 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 AC” (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 AC

KKathy1 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 hours ago★★★★★

Nur HVAC

We are super happy with the air conditioning we had put in our two floor condo - the two gentlemen working on the project were professional, hardworking and respectful of our home. I'm not sure how we survived these past few years without it. Thank you!

Paid $2,000+Great priceInstall AC

TTony1 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. · 4 days ago★★★★★

Made Simple Heating And Air

As a maintenance for an apparent complex its always good to be able to depend on people to do the job right and both Julio and Chente today were great . Professional and got the job done

Install AC

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

HHari5 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★★★★★

Nur HVAC

NurHVAC did a great job with putting in a Heatpump for us. Our A/C needed replacement. They did an excellent job. The technicians who came were very conscientious and professional.

Paid $2,000+Great priceHVAC system repairRepair HVACInstall AC

LLuke1 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. · a month ago★★★★★

Nur HVAC

Very professional, all installation was excellent, quick and clean. Would recommend fully.

Paid $2,000+Reasonable priceHVAC duct & vent installationInstall AC

KKristopherLocal Guide · 12 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★★★★★

Nur HVAC

Nur HVAC recently installed a mini-split system in our SF condo; one in the living room, and one each in the two bedrooms. They installed the heat pump outside on the balcony. I was impressed with their work ethic and the way they kept our space clean during the installation. They cleaned up at the end of each work… Read full review

Paid $2,000+Great priceInstall ACDuctless heating & A/C services

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	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	—
9	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 Sunnyvale, CA at a glance

How the 9 HVAC contractors we rated in Sunnyvale, CA 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.