22 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Knoxville: 1-Tom-Plumber, CR Score 62/100; 4.9★ from 633 Google reviews; open 24/7.
Best for emergencies (open 24/7): Miller Drain and Sewer Service, posts 24/7 hours; ranked #3 of 22.
Most-reviewed: Quality Plumbing, Heating & Air Conditioning, 620 Google reviews at 4.9★, the most of 22 ranked after 1-Tom-Plumber; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
22 Knoxville plumbers are ranked here by CR Score, from ten published factors. 4 are open 24/7, 6 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.9★ across 22 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | 1-Tom-Plumber | 62 | 4.9★ (633) | Clive, 23 mi away | 24/7 | Overall |
| 2 | Bob's Drain Cleaning & Handyman Service | 60 | 5.0★ (41) | Knoxville | Sat | — |
| 3 | Miller Drain and Sewer Service | 58 | 5.0★ (21) | Newton, 13 mi away | 24/7 | Emergencies |
| 4 | Clog Busters Drain Cleaning & Repair | 57 | 5.0★ (43) | Oskaloosa, 24 mi away | 24/7 | — |
| 5 | Drain Commander | 56 | 5.0★ (39) | Pella, 17 mi away | Sat · Evenings | — |
| 6 | Van Haaften Plumbing & Heating | 55 | 4.9★ (304) | Pella, 11 mi away | — | — |
| 7 | Dan's Plumbing and Heating LLC | 54 | 5.0★ (33) | Knoxville | — | — |
| 8 | Quality Plumbing, Heating & Air Conditioning | 53 | 4.9★ (620) | Indianola, 23 mi away | — | Most reviews |
| 9 | Roberts Heating, Cooling and Plumbing | 52 | 4.9★ (294) | Clive, 23 mi away | — | — |
| 10 | Prestige Plumbing Services | 52 | 5.0★ (4) | Indianola, 21 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.9★ from 633 Google reviews, the most in Knoxville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Knoxville
Ranked #2 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newton, 13 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oskaloosa, 24 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pella, 17 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Drainage service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pella, 11 mi away
Ranked #6 because of its Google rating and review volume: 4.9★ from 304 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Knoxville
Ranked #7 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Indianola, 23 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 620 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clive, 23 mi away
Ranked #9 because of its Google rating and review volume: 4.9★ from 294 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Indianola, 21 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pella, 17 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 308 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Indianola, 23 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Indianola, 23 mi away
Ranked #13 because of its Google rating and trade focus: 3.4★ from 17 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Knoxville
Ranked #14 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Knoxville
Ranked #15 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Excavating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Indianola, 23 mi away
Ranked #16 because of its Google rating and trade focus: 3.9★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Pella, 12 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Indianola, 24 mi away
Ranked #18 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Indianola, 23 mi away
Ranked #19 because of its Google rating and trade focus: 3.9★ from 15 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oskaloosa, 24 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Oskaloosa, 23 mi away
Ranked #21 because of its Google rating and review volume: 3.9★ from 30 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pleasant Hill, 19 mi away
Ranked #22 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Bathroom remodeler”.
Based on 8 of 10 factors; credentials and recency not yet collected.
8 more plumbers within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Dutch Master Co. | 5.0★ (1) | 10 mi |
| Evans Endeavors | In Knoxville | |
| Greenwood's Sewer Services | 23 mi | |
| Hol Drainage | 24 mi | |
| Matt Agan Plumbing & Heating | 3.0★ (2) | In Knoxville |
| Pella Heating & Cooling | 5.0★ (1) | 12 mi |
| Stump Plumbing | 3.0★ (1) | 24 mi |
| Van Sittert Plumbing & Heating | 5.0★ (2) | 12 mi |
National price ranges in USD, not adjusted for Knoxville. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | $882 | $1,348 | $1,826 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
In Iowa, Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals and Licensing) licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
We scored 22 Knoxville plumbers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Knoxville data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |