Analyzing 9,268,0599.3M ReviewsFor 26,36926.4K Experts
We graded 10 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 210,775 Google reviews of 154 top-rated plumbers nationwide; 10 of them in Portland, OR. Updated November 10, 2026.
Pick the job — we re-rank companies by how customers rated that exact job.
Experts Score 0–100Experts 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 plumbers).
| # | Company | ScoreExperts 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. | FactorsFactor 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. | ★Google star rating as shown on Google Maps. | Typical billMedian bill customers of this company reported in their reviews (needs 3+ priced reviews). |
|---|---|---|---|---|---|
| 1 |  CT Drains and Sewer Solutions LLCPortland, OR | A 99How 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%99+58.1Reliability 26%99+25.8Value 15%100+15.2Experts Score= 99Not 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– | 4.99 | $166 |
| 2 |  Perfect Service Plumbing and Drain CleaningPortland, OR | A 99How 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%99+58.1Reliability 26%97+25.3Value 15%100+15.2Experts Score= 99Not 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– | 4.99 | $184 |
| 3 |  PDX PlumberPortland, OR | A 99How 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%99+58.1Reliability 26%99+25.8Value 15%100+15.2Experts Score= 99Not 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– | 4.99 | $907 |
| 4 |  Service Plus PlumbingPortland, OR | A 97How 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%95+51.8Reliability 24%98+23.8Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 97Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.96 | $1.4k |
| 5 |  Black Cat PlumbingPortland, OR | A 97How 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%97+52.9Reliability 24%98+23.8Value 14%95+13.4Replies to reviews 7%100+7.1Experts Score= 97Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.96 | $486 |
| 6 |  Clog Pro Plumbing & DrainPortland, OR | A 96How 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%97+23.5Value 14%95+13.4Replies to reviews 7%100+7.1Experts Score= 96Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.97 | $417 |
| 7 |  Roth HomePortland, OR | A 95How 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%93+22.5Value 14%94+13.3Replies to reviews 7%100+7.1Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAA | 4.95 | $209 |
| 8 |  Plumbing and Sewer Renewal SpecialistsPortland, OR | A 94How 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%98+13.9Replies to reviews 7%100+7.1Craft & service penalty97−0.3Experts Score= 94Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.95 | $842 |
| 9 |  Cornel's Plumbing, Heating & Air ConditioningPortland, OR | A 93How 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%93+22.5Value 14%90+12.7Replies to reviews 7%100+7.1Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAA | 4.93 | $730 |
| 10 |  Cornel's Plumbing, Heating & Air ConditioningPortland, OR | A 85How 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%80+19.4Value 14%84+11.9Replies to reviews 7%100+7.1Experts Score= 85Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.86 | $630 |
What customers paid, from the price Google asks reviewers to report.
| Job | Low25th percentile: 1 in 4 customers paid less than this. | TypicalMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range). | High75th percentile: 1 in 4 customers paid more than this. | FairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”. |
|---|---|---|---|---|
| Drain cleaning | $148 | $317 | $502 | 96% |
| Plumbing pipe repair | $322 | $611 | $1.2k | 97% |
| Toilet repair | $209 | $340 | $593 | 94% |
| Plumbing leak detection | $114 | $305 | $633 | 97% |
| Water heater installation | $1.2k | $1.9k | $2.5k | 97% |
| Plumbing leak repair | $264 | $502 | $968 | 96% |
| A/C system maintenance | $27 | $148 | $480 | 97% |
| Faucet repair | $192 | $353 | $593 | 95% |
| HVAC system maintenance | $26 | $83 | $239 | 97% |
| Faucet installation | $292 | $466 | $855 | 94% |
| Water heater repair | $124 | $295 | $556 | 96% |
| Outdoor plumbing system repair | $328 | $680 | $1.5k | 98% |
How the 10 plumbers we rated in Portland, OR compare, and what customers praise most.
A = score 80+, F = below 20.
Average stars per company.
Share of Google review highlights.
All price verdicts left with reviews.
Share calling it great / reasonable / overpriced.
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.
The 10 best-rated plumbers in Portland, OR average 5.0★ on Google across 7,958 reviews. Service Plus Plumbing has the top rating (5.0★), and Cornel's Plumbing, Heating & Air Conditioning has the most reviews (3,199). Updated November 9, 2026.
10 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (7,958 reviews combined) and currently operating. Request a call back and the company will phone you directly.
“Landon is an absolute incredible owner of “Service Plus Plumbing”! He is a genuine honorable & knowledgeable plumber. Landon sent his service man “Joel” who was equally amazing and a person who went out of his way to…” — Google review
“We had a wonderful experience with plumbing and sewer renewal. Justin was super friendly and really took his time with us. We never felt rushed and he answered every question we had. Taylor was also very kind and…” — Google review
“Always professional and polite.. They come in for breakfast every month. If every need them for a plumbing job they would be the ones to call. Great prices...” — Google review
“Excellent service! Jared Bender and Chris Bryan did a fantastic job replacing our furnace. They were very friendly and professional and answered all my questions. I am very happy with the service and quality of their…” — Google review
“I had a plugged rainwater drain the very friendly technician came when he said he would, diagnosed my problem, unplugged my drains and had time left to clean up my other downspouts” — Google review
“We called Perfect Service to repair a leaky kitchen sink and Mike did great work in short order. Later that night I called him panicked after finding the ceiling in my basement leaking from my bathtub overflow. He…” — Google review
“I was very pleased with my interactions with Blackcat Plumbing as well as their work. Their bid was competitive and they showed up when they said they would and completed the work to install a new sewer cleanout/RV…” — Google review
“I am so grateful for the team at PDX Plumber! They seamlessly got me scheduled and had a tech out the same day to fix my problem! We had a leaky faucet, and the knowledgeable plumber also suggested a water filtration…” — Google review
“Came out same day and fixed the emergency as well as looked at a couple of niggling things that we’ve been dealing with since we moved in.” — Google review
“Adrian was personable, easy to work with, kind and trustworthy. He fixed my tankless water heater and got things back in order quickly. A pleasure to work with.” — Google review
We scan Google Maps for plumber listings in and around Portland, keep only open businesses whose main category matches the service, and require a Google rating of at least 4.5 from at least 20 reviews. Companies are ordered by a confidence-weighted score that balances rating and review volume. We do not accept payment for placement.
Service Plus Plumbing has the highest Google rating on our Portland list: 5.0 out of 5 from 1,049 reviews (as of November 9, 2026).
Cornel's Plumbing, Heating & Air Conditioning has the most Google reviews among the companies listed here: 3,199, with a 4.9★ average.
Only open Portland-area businesses whose Google category matches the service, rated at least 4.5★ from at least 20 Google reviews. They are ordered by a confidence-weighted score of rating and review volume. Placement is never paid.
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Analyzing 9,268,0599.3M ReviewsFor 26,36926.4K Experts