The Best Gas Contractors in San Francisco, CA

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1Heise's Plumbing★ 4.97 on this job202 jobs reviewedusually $300–400iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%4.97★Number of such jobs 25%202Overall Experts Score 20%83Job match= 94Stars are pulled toward the category average (4.85★) 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.94

2Fast Response Plumbing & Rooter★ 4.99 on this job78 jobs reviewedusually $200–400iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%4.99★Number of such jobs 25%78Overall Experts Score 20%94Job match= 92Stars are pulled toward the category average (4.85★) 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.92

3Advanced Plumbing & Drain★ 4.99 on this job68 jobs reviewedusually $200–300iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%4.99★Number of such jobs 25%68Overall Experts Score 20%92Job match= 91Stars are pulled toward the category average (4.85★) 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.91

4Ace Plumbing & Rooter, Inc.★ 4.95 on this job108 jobs reviewedusually $400–500iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%4.95★Number of such jobs 25%108Overall Experts Score 20%83Job match= 89Stars are pulled toward the category average (4.85★) 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.89

5George Salet Plumbing, Inc.★ 5.00 on this job25 jobs reviewedusually $2,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%5.00★Number of such jobs 25%25Overall Experts Score 20%94Job match= 86Stars are pulled toward the category average (4.85★) 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.86

6Magic Plumbing Heating & Cooling★ 4.88 on this job154 jobs reviewedusually $1,200–1,400iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%4.88★Number of such jobs 25%154Overall Experts Score 20%71Job match= 84Stars are pulled toward the category average (4.85★) 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

7Cabrillo Plumbing, Heating & Air★ 4.94 on this job35 jobs reviewedusually $200–300iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%4.94★Number of such jobs 25%35Overall Experts Score 20%92Job match= 84Stars are pulled toward the category average (4.85★) 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

81 Backflow Plumbing★ 5.00 on this job4 jobs reviewedusually $1–200iHow Job match is calculatedBuilt only from reviews Google tagged “Toilet repair”:Stars on this job 55%5.00★Number of such jobs 25%4Overall Experts Score 20%94Job match= 74Stars are pulled toward the category average (4.85★) 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.74

Job match = this company’s ★ on reviews Google tagged “Toilet repair” (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 toilet repair

Stella7 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. · 16 hours ago★★★★★

Heise's Plumbing

Eddie was great. Skilled and professional. I’m not in a hurry to get it fixed since we have other toilets

Toilet repair

Jacquelyn4 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. · 3 days ago★★★★★

Advanced Plumbing & Drain

Super nice and helpful. They’re very transparent and explain things well. Very friendly and reliable.

Toilet repairPlumbing leak detection

Nancy3 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★★★★★

Fast Response Plumbing & Rooter

Definitely a fast response. Cleared up our issues with minimal fuss and didn’t try to overcharge. Am keeping their information and will call them again.

Toilet repairPlumbing leak detection

David3 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. · 3 weeks ago★★★★★

Ace Plumbing & Rooter, Inc.

Very professional. I had 2 toilets replaced. Arrived on-time and completed the job quickly and cleanly. I have used this company twice so far, I would use them again in the future.

Paid $2,000+Reasonable priceToilet repair

CARLOS1 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 days ago★★★★★

Heise's Plumbing

Great job by the Heise plumbing team both Frank and Angel, worked efficiently and quickly to reset my leaky toilet.

Reasonable priceToilet repair

Glenn8 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 5 days ago★★★★★

Heise's Plumbing

Prompt, knowledgeable diagnosis and repair. Highly recommended. Also respond to emergencies when required. Have used several times for various problems, all satisfactorily resolved n house built 1911.

Reasonable priceToilet repairPlumbing leak detectionService not listed

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 gas 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	Fast Response Plumbing & RooterSan Francisco, CA	A 94iHow 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%87+6.2Craft & service penalty94−0.6Experts Score= 94Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.94	$264
2	1 Backflow PlumbingSan Francisco, CA	A 94iHow 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%96+56.3Reliability 26%91+23.7Value 15%93+14.2Craft & service penalty99−0.1Experts Score= 94Not 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–	4.97	$161
3	George Salet Plumbing, Inc.San Francisco, CA	A 94iHow 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%94+13.3Replies to reviews 7%86+6.1Experts Score= 94Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.95	$881
4	Advanced Plumbing & DrainSan Francisco, CA	A 92iHow 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%93+50.7Reliability 24%91+22.1Value 14%100+14.1Replies to reviews 7%71+5Craft & service penalty97−0.3Experts Score= 92Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAB	4.94	$305
5	Cabrillo Plumbing, Heating & AirSan Francisco, CA	A 92iHow 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%92+50.2Reliability 24%92+22.3Value 14%100+14.1Replies to reviews 7%89+6.3Craft & service penalty94−0.6Experts Score= 92Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.92	$748
6	Heise's PlumbingSan Francisco, CA	A 83iHow 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%88+48Reliability 24%87+21.1Value 14%72+10.2Replies to reviews 7%61+4.3Craft & service penalty98−0.2Experts Score= 83Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAABAB	4.88	$406
7	Ace Plumbing & Rooter, Inc.San Francisco, CA	A 83iHow 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%86+46.9Reliability 24%84+20.4Value 14%90+12.7Replies to reviews 7%41+2.9Experts Score= 83Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAC	4.89	$529
8	Magic Plumbing Heating & CoolingSan Francisco, 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%81+44.2Reliability 24%65+15.8Value 14%100+14.1Replies to reviews 7%34+2.4Craft & service penalty95−0.5Momentum penalty49−5.1Experts Score= 71Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	ABAACD	4.86	$767

What jobs cost

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

Gas Contractors in San Francisco, CA at a glance

How the 8 gas contractors we rated in San Francisco, 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.