Experts Reviews · Company report
How 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.94SCORE1 Backflow Plumbing
San Francisco, CA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #13Position by Experts Score among all companies we track in this category. of 46 gas contractors · 5.0★ from 159 Google reviews
Report card
Percentile vs other gas contractors (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: momentum and craft & service; weakest: reliability.
SatisfactionSatisfaction · 54% of the scoreRecency-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★ = 100.1 Backflow Plumbing is better than 96% of gas contractors.A
96
ReliabilityReliability · 24% of the scoreHow 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.1 Backflow Plumbing is better than 91% of gas contractors.A
91
Craft & serviceCraft & service · 0% of the scoreGoogle 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.1 Backflow Plumbing is better than 99% of gas contractors.A
99
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.1 Backflow Plumbing is better than 93% of gas contractors.A
93
MomentumMomentum · 0% of the scorePenalises 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.1 Backflow Plumbing is better than 100% of gas contractors.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow 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.1 Backflow Plumbing is better than —% of gas contractors.–
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Reviews for your job
Customers hired 1 Backflow Plumbing for 6 kinds of job.
1 Backflow Plumbing for water heater installation
Clear ✕Jobs reviewedHow many Google reviews are tagged with this job.4
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).5.00
Usually paidThe price range customers picked most often for this job.$600–700
Category typicalWhat the middle half of customers paid for this job across all companies in the category.$1.2k–$2.5k
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 73/100.How Job match is calculatedBuilt only from reviews Google tagged “Water heater installation”:Stars on this job 55%Number of such jobs 25%Overall Experts Score 20%Stars are pulled toward the category average 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.#30 / 35
Said fairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”.100%
All 4 Google reviews tagged “Water heater installation”
NicoLocal Guide · 28 reviewsTotal 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 10 months ago★★★★★
#1 plumbing service provider I have ever worked with. Responsive when needed, professional, explained work before, during and after job. Fair pricing for work done. A+++
Paid $600–700Reasonable pricePlumbing leak detectionFaucet installationWater heater installation+ Responsiveness+ Punctuality+ Quality
Robert1 reviewTotal 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. · 5 years ago★★★★★
Excellent work .
Water heater installation+ Responsiveness+ Punctuality+ Quality
Andrei12 reviewsTotal 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. · 5 years ago★★★★★
John is the owner and does the work himself. He installed a new water heater for me. He is very experienced, professional and explained everything thoroughly. He used to build homes in the past and I picked his brain on a few other projects I am planning around the house - he was happy to help and offered great advice!
Water heater installation+ Responsiveness+ Punctuality+ Quality
Toma year ago★★★★★
Rating only, no written review.
Paid $1,000+Reasonable priceWater heater installation
Price
$161-54% vs typical gas contractors
Bar = middle half of what customers paid · gold mark = category median.
Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Great price 23%Reasonable 73%Overpriced 5%Not sure 0%
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| Water heater installation | 4 | $1.2k–$2.5k |
| Water heater repair | 4 | $114–$680 |
| Toilet repair | 3 | $124–$554 |
| Plumbing pipe repair | 2 | $251–$1.4k |
| Faucet installation | 2 | $261–$680 |
| Drain cleaning | 2 | $57–$393 |
