1,424 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Walnut: Rooter Hero Plumbing & Air of San Gabriel Valley, CR Score 65/100; 4.9★ from 926 Google reviews; open 24/7.
Best for emergencies (open 24/7): Rooter Hero Plumbing & Air, posts 24/7 hours; ranked #2 of 1,424.
Most-reviewed: Barker and Sons Plumbing & Rooter, 3,896 Google reviews at 4.8★, the most of 1,424 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,424 Walnut plumbers are ranked here by CR Score, from ten published factors. 755 are open 24/7, 1,163 open Saturdays and 929 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,424 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rooter Hero Plumbing & Air of San Gabriel Valley | 65 | 4.9★ (926) | Diamond Bar, 2 mi away | 24/7 | Overall |
| 2 | Rooter Hero Plumbing & Air | 64 | 4.9★ (1,637) | Pomona, 8 mi away | 24/7 | Emergencies |
| 3 | Barker and Sons Plumbing & Rooter | 64 | 4.8★ (3,896) | Anaheim, 11 mi away | 24/7 | Most reviews |
| 4 | Top Notch Plumbing Inc. | 64 | 5.0★ (515) | Covina, 6 mi away | 24/7 | — |
| 5 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.9★ (375) | Rowland Heights, 3 mi away | 24/7 | — |
| 6 | Dymek's Freedom Plumbing, Inc | 63 | 5.0★ (1,063) | Anaheim, 11 mi away | 24/7 | — |
| 7 | Western Rooter & Plumbing | 63 | 4.9★ (1,562) | Arcadia, 13 mi away | 24/7 | — |
| 8 | EZ Sewers Rooter and Plumbing | 63 | 5.0★ (130) | Avocado Heights, 1 mi away | 24/7 | — |
| 9 | Biard & Crockett Plumbing, Heating, and Air Conditioning | 62 | 4.9★ (1,715) | Orange, 15 mi away | 24/7 | — |
| 10 | Service Lion Plumbing Heating Air Electric | 62 | 4.7★ (1,173) | Brea, 8 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 in Walnut
Based in Diamond Bar, 2 mi away
Ranked #1 because of its Google rating and trade focus: 4.9★ from 926 Google reviews, listed on Google as “Plumber”.
Based in Pomona, 8 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,637 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 11 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 3,896 Google reviews, listed on Google as “Plumber”.
Based in Covina, 6 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 515 Google reviews, listed on Google as “Plumber”.
Based in Rowland Heights, 3 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 375 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 11 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 1,063 Google reviews, listed on Google as “Plumber”.
Based in Arcadia, 13 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 1,562 Google reviews, listed on Google as “Plumber”.
Based in Avocado Heights, 1 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Plumber”.
Based in Orange, 15 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,715 Google reviews, listed on Google as “Plumber”.
Based in Brea, 8 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 1,173 Google reviews, listed on Google as “Plumber”.
Based in Orange, 13 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 1,980 Google reviews, listed on Google as “Plumber”.
Based in Covina, 4 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 253 Google reviews, listed on Google as “Plumber”.
Based in Brea, 7 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 350 Google reviews, listed on Google as “Plumber”.
Based in Claremont, 9 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 346 Google reviews, listed on Google as “Plumber”.
Based in Arcadia, 4 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 144 Google reviews, listed on Google as “Plumber”.
Based in Pomona, 8 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 542 Google reviews, listed on Google as “Plumber”.
Based in Rancho Cucamonga, 18 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 3,017 Google reviews, listed on Google as “Plumber”.
Based in San Dimas, 6 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 743 Google reviews, listed on Google as “Plumber”.
Based in Brea, 8 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 287 Google reviews, listed on Google as “Plumber”.
Based in San Dimas, 7 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 396 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 13 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 435 Google reviews, listed on Google as “Plumber”.
Based in Hacienda Heights, 6 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “Plumber”.
Based in Duarte, 10 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 276 Google reviews, listed on Google as “Plumber”.
Based in San Marino, 16 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 652 Google reviews, listed on Google as “Plumber”.
Based in Brea, 7 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 160 Google reviews, listed on Google as “Plumber”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 1,424 ranked plumbers here; the rest are on their profiles.
20 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 |
|---|---|---|
| All Rooter Solutions | 5.0★ (2) | 5 mi |
| Count-on Plumbing | 5.0★ (2) | 8 mi |
| Currier Plumbing | 5.0★ (2) | 9 mi |
| Drainiacs Sewer and Drain | 4.8★ (295) | 10 mi |
| Elite Rooter Plumbers | 4.7★ (752) | 11 mi |
| Hydro Backflow | 5.0★ (2) | 4 mi |
| I-Best Construction | 3.0★ (2) | 11 mi |
| JB Plumbing | 4.5★ (2) | 10 mi |
| JC Plumbing Inc. | 5.0★ (2) | 11 mi |
| MB Plumbing | 5.0★ (2) | 9 mi |
| Nickerson Brothers Plumbing Co | 5.0★ (2) | 9 mi |
| North Brothers Plumbing | 5.0★ (130) | 7 mi |
| Orange Coast Pipe | 5.0★ (2) | 9 mi |
| Plumber XP | 5.0★ (258) | 8 mi |
| Ramirez Handyman Service | 5.0★ (2) | 12 mi |
| Sanchez Plumbing Services | 5.0★ (2) | 12 mi |
| Showtime-Vince Ruiz Plumbing | 4.5★ (2) | 5 mi |
| SJL Plumbing & Piping | 3.0★ (2) | 10 mi |
| Tony's Rooter and Plumbing Service | 4.9★ (54) | 2 mi |
| Upeace plumbing and leak detection | In Walnut |
National price ranges in USD, not adjusted for Walnut. 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 California, Contractors State License Board (CSLB) licenses C-36 Plumbing contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
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 1,424 Walnut 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 23, 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 Walnut 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 |