The Best Gas Contractors in San Francisco, CA

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1Ace Plumbing & Rooter, Inc.★ 4.94 on this job121 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Plumbing pipe repair”:Stars on this job 55%4.94★Number of such jobs 25%121Overall Experts Score 20%83Job 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

2Advanced Plumbing & Drain★ 5.00 on this job49 jobs reviewedusually $200–300iHow Job match is calculatedBuilt only from reviews Google tagged “Plumbing pipe repair”:Stars on this job 55%5.00★Number of such jobs 25%49Overall Experts Score 20%92Job 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

3Magic Plumbing Heating & Cooling★ 4.96 on this job113 jobs reviewedusually $500–600iHow Job match is calculatedBuilt only from reviews Google tagged “Plumbing pipe repair”:Stars on this job 55%4.96★Number of such jobs 25%113Overall Experts Score 20%71Job match= 90Stars 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.90

4Heise's Plumbing★ 4.92 on this job120 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Plumbing pipe repair”:Stars on this job 55%4.92★Number of such jobs 25%120Overall Experts Score 20%83Job match= 90Stars 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.90

5Fast Response Plumbing & Rooter★ 4.94 on this job51 jobs reviewedusually $100–200iHow Job match is calculatedBuilt only from reviews Google tagged “Plumbing pipe repair”:Stars on this job 55%4.94★Number of such jobs 25%51Overall Experts Score 20%94Job 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

6Cabrillo Plumbing, Heating & Air★ 4.94 on this job36 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “Plumbing pipe repair”:Stars on this job 55%4.94★Number of such jobs 25%36Overall Experts Score 20%92Job 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

7George Salet Plumbing, Inc.★ 5.00 on this job18 jobs reviewedusually $1,000–1,200iHow Job match is calculatedBuilt only from reviews Google tagged “Plumbing pipe repair”:Stars on this job 55%5.00★Number of such jobs 25%18Overall Experts Score 20%94Job match= 85Stars 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.85

Job match = this company’s ★ on reviews Google tagged “Plumbing pipe 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 plumbing pipe repair

Andy12 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. · 10 hours ago★★★★★

Advanced Plumbing & Drain

I had a leaking drain pipe in the wall that needed to be located and fixed. Dylan was great to work with, very professional and courteous. Did a great job replacing an old cast iron section of pipe with new copper. Highly recommend Dylan and Advanced Plumbing!

Plumbing leak detectionPlumbing pipe repair

Barbara9 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

The best! They arrived on time, quickly fixed the problem, and are very reasonably priced. Highly recommended!

Paid $1–200Great pricePlumbing pipe repair

James6 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★★★★★

Heise's Plumbing

Plumbers arrived bang on time for the estimate and doing the work. I just let them at the job and they were done in about 30mins! Very professional and courteous. Price was very reasonable. All round excellent service👍

Paid $1,000–1,200Reasonable pricePlumbing leak detectionPlumbing pipe repairPlumbing leak repair

Armando6 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★★★★★

Ace Plumbing & Rooter, Inc.

Technicians were exceptional with the job they had and they executed it well in a timely manner. After the job was done they checked in with me and I was very pleased with how they delivered and tended to the repairs.

Reasonable pricePlumbing pipe repair

MMary2 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★★★★★

George Salet Plumbing, Inc.

I’ve been using this plumbing Company for years, knowledgeable, trustworthy and reliable.

Paid $2,000+Not sureGarbage disposal installationPlumbing pipe repairService not listed

Mason7 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★★★★★

Fast Response Plumbing & Rooter

We've had Fast Response out a number of times, for both repairs and improvements (new faucet, new sink). They've always been -- yes, fast -- but reliable, easy to schedule and work with, friendly, and helpful. Plumbing is often tricky but Fast Response have worked with us and gotten it done.

Reasonable priceToilet repairPlumbing pipe repairFaucet installation

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.