Commercial Plumbing in Seattle, Washington: 17 Top Pros (2026)
17 verified commercial plumbing providers in Seattle, ranked by ServiceAgent Score. Light commercial plumbing. Compare response times, ratings, and pricing - and request a quote in minutes.
TL;DR
- 17 commercial plumbing providers match in Seattle, Washington.
- Top pick: South West Plumbing, Heating, Air, & Electric (ServiceAgent Score 8.6/10).
- Median ServiceAgent Score: 8.3/10.
- 0 owner-verified listings.
- Filtered for Commercial: light commercial plumbing.
Why trust this list
This page narrows the full Seattle plumbing directory to providers that explicitly serve commercial requests. We surfaced them by scanning provider categories, service tags, and review text for relevant signals.
If you're looking at this page, you probably need commercial plumbing now - so we've ordered the list by composite ServiceAgent Score and surfaced the response-time indicator on every card. Call the top three; the first to pick up usually wins the job.
At-a-glance: top 11 plumbing pros in Seattle
Compare the top picks side-by-side. Full reviews of each below.
SA Score = ServiceAgent composite (0–10). Tap a row number to jump to the full review.
How we chose these
Same scoring engine as the main Seattle plumbing ranking, with an additional filter step: we look for Commercial signals in each provider's business categories, service tags, and recent review text.
When the Commercial filter would surface fewer than five providers, we fall back to showing top-rated plumbing pros generally - they are far more likely to handle commercial work than an unrated provider would be.
Full formula on the methodology page.
17 Best Plumbing Companies Ranked
Ranked by composite ServiceAgent Score. 17 verified businesses match.
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Seattle, WA · 825 S Stacy St, Seattle, WA 98134 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 5.0★ across 925 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
South West Plumbing, Heating, Air, & Electric has built a high-volume operation in Seattle, with 925 Google reviews averaging 5.0 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
5.0-star average across 925 reviews is in the top 5% of providers in Seattle - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Our top pick. The composite score (8.6/10) reflects a rare combination of review depth, rating, and data completeness. Hard to argue with the data.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 580-1730 |
| Website | onetocall.com/?utm_source=google&utm_medium=organic&utm_campaign=GMBListing-Seattle-WA |
Best for: Quality-first buyers who care more about the satisfaction signal than the cheapest quote.
| Location | Seattle, WA · 1141 NW 53rd St, Seattle, WA 98107 |
|---|---|
| Established | Established (high review volume) |
| Specialization | Plumbing |
| Rating | 5.0★ across 326 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Ben’s Plumbing & Drain Cleaning maintains a strong 5.0-star reputation across 326 reviews in Seattle, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
5.0-star average across 326 reviews is in the top 5% of providers in Seattle - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
A solid top-3 pick. Worth getting a quote from alongside #1 to compare response times and pricing on your specific job.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 202-2620 |
| Website | bens.plumbing/?utm_campaign=gmb |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Seattle, WA · 2208 NW Market St #316a, Seattle, WA 98107 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.9★ across 3,605 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
2 Sons Plumbing, Sewer, Septic, Electric, Heating & Air has built a high-volume operation in Seattle, with 3,605 Google reviews averaging 4.9 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.9-star average across 3,605 reviews is in the top 5% of providers in Seattle - unusually high satisfaction signal at this volume.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
A solid top-3 pick. Worth getting a quote from alongside #1 to compare response times and pricing on your specific job.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 337-4070 |
| Website | www.2sonsplumbing.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Seattle, WA · 10011 Greenwood Ave N, Seattle, WA 98133 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 4,117 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Gene Johnson Plumbing has built a high-volume operation in Seattle, with 4,117 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 4,117 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (360) 218-7611 |
| Website | www.genejohnsonplumbing.com/?utm_source=google-gbp&utm_medium=organic&utm_campaign=*109*gene-johnson-plumbing-seattle |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Seattle, WA · 2401 SW Alaska St, Seattle, WA 98106 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 3,350 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Bee's Plumbing and Heating has built a high-volume operation in Seattle, with 3,350 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 3,350 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 629-8217 |
| Website | www.beesplumbingandheating.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Seattle, WA · 2000 S 116th St, Seattle, WA 98168 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 2,655 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Mr. Rooter Plumbing of Seattle has built a high-volume operation in Seattle, with 2,655 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 2,655 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 866-2836 |
| Website | www.mrrooter.com/seattle/?cid=LSTL_MRR000199&utm_source=gmb&utm_campaign=local&utm_medium=organic |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Seattle, WA · 4778 Shilshole Ave NW, Seattle, WA 98107 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 639 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Craftsman Plumbing has built a high-volume operation in Seattle, with 639 Google reviews averaging 4.8 stars. That kind of review velocity in a single market typically means a fleet-style operation with multiple crews and a predictable response window.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 639 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 737-2266 |
| Website | craftsman-plumbing.com/?utm_source=GMB&utm_medium=organic |
Best for: Mid-tier plumbing jobs where price and quality both matter.
| Location | Seattle, WA · 10710 Lake City Way NE, Seattle, WA 98125 |
|---|---|
| Established | Established (high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 417 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Raymark Plumbing & Sewer maintains a strong 4.8-star reputation across 417 reviews in Seattle, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 417 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 440-9077 |
| Website | www.raymarkplumbing.com |
Best for: Mid-tier plumbing jobs where price and quality both matter.
| Location | Seattle, WA · 6056 California Ave SW, Seattle, WA 98136 |
|---|---|
| Established | Established (high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 345 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
O'Neill Plumbing maintains a strong 4.8-star reputation across 345 reviews in Seattle, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 345 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 932-5283 |
| Website | oneillplumbing.com |
Best for: Mid-tier plumbing jobs where price and quality both matter.
| Location | Seattle, WA · 14058 Aurora Ave N, Seattle, WA 98133 |
|---|---|
| Established | Established (high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 259 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Jafco Plumbing and Sewer maintains a strong 4.8-star reputation across 259 reviews in Seattle, suggesting consistent execution rather than a one-off lucky streak.
- Maintains an active website with service detail.
- Direct phone published - no lead form gatekeeping.
- Active on Google with up-to-date contact info.
✓ Strong review signal
4.8-star average across 259 reviews points to consistent on-time delivery and clear communication.
⚠ Watch out for
After-hours and emergency response isn't signaled on the public profile - confirm availability directly if your job is time-sensitive.
Our take
Ranked here because of high review depth at a strong rating - the kind of provider you can hire without doing 90 minutes of due diligence.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (206) 316-9449 |
| Website | jafcocompany.com/service-areas/seattle-wa/?utm_source=google&utm_medium=organic&utm_campaign=gbp |
Showing 10 of 17.
Trends this quarter
Pricing, demand, and provider trends — pulled from our Q4 2026 plumbing report.
- 17 plumbing providers tracked in Seattle this quarter, with an average ServiceAgent Score of 8.3/10.
- 3 elite-tier providers (Score ≥ 8.5/10), and an average Google rating of 4.84★.
- Total review volume changed by -4.5% quarter-over-quarter — a leading indicator of local plumbing demand.
- Median quote price moved +3.1% vs. the previous quarter for typical plumbing jobs.
- 0% of providers are owner-verified (+2.3% QoQ).
Source: ServiceAgent Plumbing trends in Seattle, Q4 2026. Quarterly methodology and full commentary available in the full report.
When demand peaks in Seattle for plumbing
12-month demand index (100 = annual average). Peaks in January, troughs in September. Book in the trough months to lock lower rates.
Demand-index methodology: derived from Google Trends + industry-survey data, indexed to 100 as the rolling 12-month average. Local market may vary 10-25%.
Plumbing cost calculator
Quick budget estimates by job type. Use these as a planning sanity-check, not as a firm quote.
| Job | Low | High |
|---|---|---|
| Service call / diagnostic | $100 | $250 |
| Drain cleaning (snake) | $150 | $450 |
| Hydro-jet drain | $400 | $900 |
| Water heater replacement (tank) | $1,100 | $1,800 |
| Tankless water heater install | $2,200 | $4,500 |
Estimates based on industry-average labor + materials, adjusted for local market. Get at least two written quotes from providers above before signing.
Who offers commercial plumbing in Seattle?
South West Plumbing, Heating, Air, & Electric and 16 other plumbing businesses in Seattle offer commercial service. See the ranked list above; the top picks have the strongest combination of reviews, verification, and commercial signals.
How fast can a commercial plumbing pro arrive?
Response time varies by provider and current job load. Claimed listings display their average response window directly on the profile - aim for providers showing under-24-hour replies.
What does commercial plumbing cost in Seattle?
Cost depends on scope and materials. Get at least two written estimates - most Seattle plumbing providers offer free quotes for commercial work.
Are these providers licensed and insured?
Listings tagged with ✓ Licensed & insured have that signal in their provider data. Always verify directly with the provider before any work, and confirm coverage via your state license board.
How is this list different from the main Plumbing in Seattle page?
This page is filtered to providers offering commercial service specifically. The main Plumbing in Seattle page lists every provider regardless of intent.
Frequently asked questions
5 common questions about hiring a plumbing pro in this area.
Who offers commercial plumbing in Seattle?
South West Plumbing, Heating, Air, & Electric and 16 other plumbing businesses in Seattle offer commercial service. See the ranked list above; the top picks have the strongest combination of reviews, verification, and commercial signals.
How fast can a commercial plumbing pro arrive?
Response time varies by provider and current job load. Claimed listings display their average response window directly on the profile - aim for providers showing under-24-hour replies.
What does commercial plumbing cost in Seattle?
Cost depends on scope and materials. Get at least two written estimates - most Seattle plumbing providers offer free quotes for commercial work.
Are these providers licensed and insured?
Listings tagged with ✓ Licensed & insured have that signal in their provider data. Always verify directly with the provider before any work, and confirm coverage via your state license board.
How is this list different from the main Plumbing in Seattle page?
This page is filtered to providers offering commercial service specifically. The main Plumbing in Seattle page lists every provider regardless of intent.
Reports & insights
Pricing, demand, and provider trends for Seattle — refreshed quarterly.
Plumbing trends in Seattle, Q4 2026
Pricing, demand, and review-volume trends for plumbing providers in Seattle.
Home-service trends in Seattle, Washington (Q4 2026)
Across every category, here's what's changing in the Seattle home-service market this quarter.
State of Plumbing in Washington, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for plumbing providers across Washington.
State of home services in Washington, Q4 2026
Pricing, demand, and provider trends across every home-service category in Washington.
State of Painting in Washington, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for painting providers across Washington.
State of Electricians in Washington, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for electricians providers across Washington.
Verify any provider's license in Washington
Always confirm a contractor is in good standing before hiring. Washington uses the Washington State Department of Labor & Industries (L&I). Search by license number, business name, or address.
Own a business in this list? Claim it free.
Get a verified green badge, edit your description, upload real photos, and bump your placement in this and 11 other category lists. Takes under 2 minutes.
- ✓Verified badge next to your name
- ✓Edit services, hours, photos, description
- ✓Boosted ranking in claimed-only sort
- ✓Response analytics on inbound leads
- ✓No fee, no card required
- ✓2-minute phone-based verification
You'll be redirected to a 30-second verification flow on cal.so. We send a code to the phone number Google has on file for your business.
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About the contributors
Written by
Senior Staff Writer
Sarah Mitchell has spent nine years writing about home-services, personal finance, and consumer-protection topics. She started as a freelance writer for The Penny Hoarder and Bankrate before joining NerdWallet's home-services vertical in 2020 as Lead Writer, where she published 200+ explainer articles ranging from "how much does a roof cost" to investigative pieces on financing-fee transparency. Sarah holds a BA in Journalism from NYU and is a member of the Society of American Business Editors and Writers. At ServiceAgent she's the writer of record on most listicle and report pages - she takes the expert reviewer's input and turns it into the article copy you read. Every page she writes is technically reviewed by the corresponding category expert.
Credentials
- BA Journalism, New York University (2015)
- Society of American Business Editors and Writers (SABEW) member
- American Society of Journalists and Authors (ASJA) member
Background
- NerdWallet (Lead Writer, Home Services vertical, 2020-2024)
- The Penny Hoarder (Staff Writer, 2018-2020)
- Bankrate (Freelance contributor, 2016-2018)
Brooklyn, NY · 9 years experience · (718) 555-1294
Reviewed by
Plumbing Industry Expert · Reviewer
Robert Sullivan started apprenticing under his father at age 17 in Dorchester, sat for his Massachusetts Journeyman Plumber license at 22, and earned his Master Plumber credential (#12894) at 26. He's been the owner-operator of Sullivan Plumbing Co. since 2011, running a four-truck residential operation across Greater Boston. Robert has handled an estimated 12,000+ service calls personally and trained 14 apprentices through to journeyman status. He reviews every ServiceAgent plumbing article for technical accuracy and gives us the unfiltered ground-truth on what homeowners actually get charged in his market.
Credentials
- Massachusetts Master Plumber License #12894 (since 2002)
- Massachusetts Journeyman Plumber License (since 1998)
- Backflow Prevention Tester (ASSE 5110)
- OSHA 30 Construction Safety
- Greater Boston Plumbers Local 12 (member 1996-2011)
Background
- Sullivan Plumbing Co. (Owner, 2011-present)
- Suburban Plumbing & Heating (Master Plumber, 2002-2011)
- F.W. Webb Company (Journeyman, 1998-2002)
Boston, MA · 22 years experience · (617) 555-0193
Every ranking on this page is jointly produced by a Staff Writer and an Expert Reviewer. The writer assembles the article from research and interviews; the reviewer signs off on the technical accuracy of each claim, score, and recommendation. Read our methodology →
Update history
- June 24, 2026 — Latest ranking refresh. Composite ServiceAgent Scores recomputed from current Google review data.
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