Plumbing in Wisconsin: 29 Top Proes Ranked (2026)
29 verified plumbing businesses in Wisconsin, ranked by ServiceAgent Score across 7 cities. Real reviews, transparent methodology, no pay-to-rank.
TL;DR
- 29 verified plumbing businesses cataloged across 7 cities in Wisconsin.
- Top pick: Optimal Plumbing (Milwaukee) with ServiceAgent Score 8.6/10.
- 2 elite-tier providers (ServiceAgent Score ≥ 8.5/10) in Wisconsin.
- Typical plumbing project cost: $125 - $4,500 - $320 median for a standard repair, $1,800 median for a water-heater replacement.
- 0 plumbing providers offer 24/7 or emergency service across Wisconsin.
- For a tighter list, drill into your city below - we have a city-by-city ranking for each metro.
Why trust this list
Finding a trustworthy plumbing pro in Wisconsin is harder than it should be - reviews are gamed, marketing claims are loud, and licensed-and-insured isn't visible from a Google search.
We've cataloged every active plumbing provider in Wisconsin (29 total across 7 cities) and ranked them by composite ServiceAgent Score - a weighted blend of Trust (data quality + verification + review-volume credibility) and Recommendation (rating + review volume, Bayesian-shrunk).
Below: the top 25 plumbing providers in Wisconsin, transparent methodology, cost benchmarks for the trade, and the red flags worth walking away from. Drill into your city in the related pages section for a tighter local ranking.
At-a-glance: top 11 plumbing pros in Wisconsin
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
We rank every active provider in every active plumbing business in Wisconsin by a composite ServiceAgent Score (0-10) made up of two components:
Trust Score (40%) - rewards owner-verified status, completeness of contact info, presence of hours/coordinates/photos, and review-volume credibility.
Recommendation Score (60%) - Google rating Bayesian-shrunk toward the category mean using a 25-review prior so high-volume providers can't be dethroned by 5-star outliers.
Composite ServiceAgent Score = 0.6 × Recommendation + 0.4 × Trust. We re-compute as new reviews land and as providers claim their listings. The "Last updated" date at the top of this page reflects the most recent data refresh.
What we deliberately don't do: pay-to-rank, sponsored slots that masquerade as editorial picks, or hide our formula. Sponsored slots (if/when introduced) will be clearly labeled and won't affect editorial ranking.
Full formula on the methodology page.
Top 29 pros, ranked
Ranked by composite ServiceAgent Score. 29 verified businesses match.
Best for: Quality-first buyers who care more about the satisfaction signal than the cheapest quote.
| Location | Milwaukee, WI · 7309 W Tripoli Ave, Milwaukee, WI 53220 |
|---|---|
| Established | Established (high review volume) |
| Specialization | Plumbing |
| Rating | 5.0★ across 203 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Optimal Plumbing maintains a strong 5.0-star reputation across 203 reviews in Milwaukee, 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 203 reviews is in the top 5% of providers in Milwaukee - 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 | (414) 387-2332 |
| Website | www.optimalplumbingwi.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Madison, WI · 818 Post Rd, Madison, WI 53713 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.9★ across 885 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Avid Plumbing LLC has built a high-volume operation in Madison, with 885 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 885 reviews is in the top 5% of providers in Madison - 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 | (608) 975-5578 |
| Website | avidplumbing.com/?utm_source=google&utm_medium=organic&utm_campaign=GMBListing-madison-wi |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | West Allis, WI · 1529 S 113th St, West Allis, WI 53214 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 746 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Rozga Plumbing Corp. has built a high-volume operation in West Allis, with 746 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 746 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
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 | (414) 285-3100 |
| Website | www.rozgacorp.com/?utm_source=GMB&utm_medium=organic&utm_campaign=west_allis |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Milwaukee, WI · 633 S Hawley Rd Ste 120, Milwaukee, WI 53214 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 671 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
ABC Sewer & Drain Cleaning has built a high-volume operation in Milwaukee, with 671 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 671 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 | (414) 744-6060 |
| Website | www.abcsewer.com/?utm_source=gbp&utm_medium=organic |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Madison, WI · 802 John Nolen Dr, Madison, WI 53713 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 568 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
H.J. Pertzborn Plumbing and Fire Protection Corporation. has built a high-volume operation in Madison, with 568 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 568 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 | (608) 256-3900 |
| Website | hjpertzborn.com |
Best for: Homeowners who want a high-volume operator with a long, consistent track record.
| Location | Fitchburg, WI · 2870 Commerce Park Dr, Fitchburg, WI 53719 |
|---|---|
| Established | Established (very high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 524 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Benjamin Plumbing has built a high-volume operation in Fitchburg, with 524 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 524 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 | (608) 271-7071 |
| Website | www.benjaminplumbing.com/utm_source=google&utm_medium=organic&utm_campaign=GBP |
Best for: Mid-tier plumbing jobs where price and quality both matter.
| Location | DeForest, WI · 6474 Blanchar's Crossing, DeForest, WI 53598 |
|---|---|
| Established | Established (high review volume) |
| Specialization | Plumbing |
| Rating | 4.8★ across 389 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
RHD Plumbing & Remodeling, Inc. maintains a strong 4.8-star reputation across 389 reviews in DeForest, 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 389 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 | (608) 292-3318 |
| Website | rhdplumbing.com/?UTM_source=GMB_listing&UTM_medium=organic |
Best for: Customers prioritizing top-end satisfaction scores in Milwaukee.
| Location | Milwaukee, WI · 3613 N Doctor M.L.K. Jr Dr, Milwaukee, WI 53212 |
|---|---|
| Established | Operating multiple years (moderate review history) |
| Specialization | Plumbing |
| Rating | 5.0★ across 56 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Knight Plumbing, Inc. operates in Milwaukee with 56 Google reviews at 5.0 stars - a steady mid-tier signal in our composite scoring.
- 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 56 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
Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (414) 404-4416 |
| Website | www.knightplumbinginc.com |
Best for: Customers prioritizing top-end satisfaction scores in Milwaukee.
| Location | Milwaukee, WI · 11414 W Park Pl #202, Milwaukee, WI 53224 |
|---|---|
| Established | Operating multiple years (moderate review history) |
| Specialization | Plumbing |
| Rating | 4.9★ across 124 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Austin Plumbing, Heating, Air & Electric maintains a strong 4.9-star reputation across 124 reviews in Milwaukee, 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
4.9-star average across 124 reviews is in the top 5% of providers in Milwaukee - 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
Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (414) 246-1587 |
| Website | teamaustin.com/?utm_source=google&utm_medium=gbp&utm_campaign=milwaukee |
Best for: Customers prioritizing top-end satisfaction scores in Madison.
| Location | Madison, WI · 1215 Williamson St, Madison, WI 53703 |
|---|---|
| Established | Operating multiple years (moderate review history) |
| Specialization | Plumbing |
| Rating | 4.9★ across 64 Google reviews |
| Status | Unclaimed listing (Google data) |
The approach
Howe Brothers Plumbing LLC operates in Madison with 64 Google reviews at 4.9 stars - a steady mid-tier signal in our composite scoring.
- 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 64 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
Mid-tier ranking in this market. Quality looks reasonable but isn't a standout vs. the top 3 - use them if you can't get a quote from a higher-ranked provider in time.
| 24/7 emergency | Not advertised |
|---|---|
| Free estimate | Not advertised |
| Licensed + insured | Not advertised - verify before hiring |
| Phone | (608) 257-2884 |
| Website | www.howebrothers.com |
Showing 10 of 29 ranked pros.
Trends this quarter
Pricing, demand, and provider trends — pulled from our Q4 2026 plumbing report.
- 29 plumbing providers tracked in Wisconsin this quarter, with an average ServiceAgent Score of 8.0/10.
- 2 elite-tier providers (Score ≥ 8.5/10), and an average Google rating of 4.71★.
- Total review volume changed by +10.7% quarter-over-quarter — a leading indicator of local plumbing demand.
- Median quote price moved +0.9% vs. the previous quarter for typical plumbing jobs.
- 0% of providers are owner-verified (-0.5% QoQ).
Source: ServiceAgent State of Plumbing in Wisconsin, Q4 2026. Quarterly methodology and full commentary available in the full report.
When demand peaks in Wisconsin 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 is the best plumbing business in Wisconsin?
Based on composite ServiceAgent Score across every active provider in Wisconsin, Optimal Plumbing in Milwaukee ranks #1 (8.6/10). Avid Plumbing LLC in Madison (8.5/10) ranks #2 and Rozga Plumbing Corp. in West Allis (8.4/10) ranks #3.
How much does plumbing service cost in Wisconsin?
Across Wisconsin, plumbing jobs span $125 - $4,500 depending on scope. $320 median for a standard repair, $1,800 median for a water-heater replacement. Prices vary 30-50% between providers for the same scope, so always get at least two itemized written estimates.
What drives the price difference between plumbing providers in Wisconsin?
Several factors:
• Pipe material (copper costs 2× PEX; cast iron repair is the most expensive) • Access difficulty (slab leaks + crawlspace work add hours) • Permit + inspection cost (varies by city) • After-hours vs. business-hours rates
Providers that quote by phone without seeing the job often end up the most expensive after the fact.
What should I look for when hiring plumbing in Wisconsin?
Use this checklist:
• State-licensed master plumber on staff • Bonded + insured (ask for the certificate, not just a verbal yes) • Up-front, itemized quote in writing • Pulls permits where required by the city • Backflow certification if work touches the water supply
If the provider can't or won't meet these basics, there's no shortage of pros in Wisconsin - move to the next one on the list.
What are the biggest red flags?
The patterns we see most often in disputes:
• ⚠️ Quotes by-the-job without seeing the work first • ⚠️ Charges separately for the diagnostic call AND the repair work • ⚠️ Pushes pipe replacement when a localized repair would do the job • ⚠️ No license number visible on the truck or website
Any one of these is reason enough to politely walk.
Frequently asked questions
7 common questions about hiring a plumbing pro in this area.
Who is the best plumbing business in Wisconsin?
Based on composite ServiceAgent Score across every active provider in Wisconsin, Optimal Plumbing in Milwaukee ranks #1 (8.6/10). Avid Plumbing LLC in Madison (8.5/10) ranks #2 and Rozga Plumbing Corp. in West Allis (8.4/10) ranks #3.
How much does plumbing service cost in Wisconsin?
Across Wisconsin, plumbing jobs span $125 - $4,500 depending on scope. $320 median for a standard repair, $1,800 median for a water-heater replacement. Prices vary 30-50% between providers for the same scope, so always get at least two itemized written estimates.
What drives the price difference between plumbing providers in Wisconsin?
Several factors:
• Pipe material (copper costs 2× PEX; cast iron repair is the most expensive) • Access difficulty (slab leaks + crawlspace work add hours) • Permit + inspection cost (varies by city) • After-hours vs. business-hours rates
Providers that quote by phone without seeing the job often end up the most expensive after the fact.
What should I look for when hiring plumbing in Wisconsin?
Use this checklist:
• State-licensed master plumber on staff • Bonded + insured (ask for the certificate, not just a verbal yes) • Up-front, itemized quote in writing • Pulls permits where required by the city • Backflow certification if work touches the water supply
If the provider can't or won't meet these basics, there's no shortage of pros in Wisconsin - move to the next one on the list.
What are the biggest red flags?
The patterns we see most often in disputes:
• ⚠️ Quotes by-the-job without seeing the work first • ⚠️ Charges separately for the diagnostic call AND the repair work • ⚠️ Pushes pipe replacement when a localized repair would do the job • ⚠️ No license number visible on the truck or website
Any one of these is reason enough to politely walk.
Where can I find plumbing pros in my specific city in Wisconsin?
Drill into your city from the related links. We have city-by-city rankings for 7 Wisconsin cities - navigate to Wisconsin › {your city} › Plumbing.
How does the ServiceAgent Score work?
It's a 0-10 composite of a Trust Score (40% - data quality + verification + review-volume credibility) and a Recommendation Score (60% - Google rating Bayesian-shrunk toward the category mean using a 25-review prior). Full formula on the methodology page.
Reports & insights
Pricing, demand, and provider trends for Wisconsin — refreshed quarterly.
State of Plumbing in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for plumbing providers across Wisconsin.
State of home services in Wisconsin, Q4 2026
Pricing, demand, and provider trends across every home-service category in Wisconsin.
State of Construction in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for construction providers across Wisconsin.
State of Electricians in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for electricians providers across Wisconsin.
State of HVAC in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for hvac providers across Wisconsin.
State of Roofing in Wisconsin, Q4 2026
Pricing trends, demand signals, and elite-tier shifts for roofing providers across Wisconsin.
Verify any provider's license in Wisconsin
Always confirm a contractor is in good standing before hiring. Wisconsin uses the Wisconsin Department of Safety and Professional Services (DSPS). Search by license number, business name, or address.
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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 12, 2026 — Latest ranking refresh. Composite ServiceAgent Scores recomputed from current Google review data.