Top 50 of 1,418 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank
25 of the 50 plumbers on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.
#1 for emergency plumbing in Walnut: Rooter Hero Plumbing & Air of San Gabriel Valley, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | Rooter Hero Plumbing & Air of San Gabriel Valley | 65 | 4.9★ (926) | Diamond Bar, 2 mi away | 24/7 |
| 2 | Barker and Sons Plumbing & Rooter | 64 | 4.8★ (3,896) | Anaheim, 11 mi away | 24/7 |
| 3 | Rooter Hero Plumbing & Air | 64 | 4.9★ (1,637) | Pomona, 8 mi away | 24/7 |
| 4 | Top Notch Plumbing Inc. | 64 | 5.0★ (515) | Covina, 6 mi away | 24/7 |
| 5 | Roto-Rooter Plumbing & Water Cleanup | 64 | 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 | Service Lion Plumbing Heating Air Electric | 63 | 4.7★ (1,173) | Brea, 8 mi away | 24/7 |
| 8 | Western Rooter & Plumbing | 63 | 4.9★ (1,562) | Arcadia, 13 mi away | 24/7 |
| 9 | Do It Right Plumbers | 63 | 4.8★ (1,980) | Orange, 13 mi away | 24/7 |
| 10 | Biard & Crockett Plumbing, Heating, and Air Conditioning | 63 | 4.9★ (1,715) | Orange, 15 mi away | 24/7 |
24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.
#1Rooter Hero Plumbing & Air of San Gabriel Valley
Open 24/7 · 4.9 from 926 Google reviews
#2Barker and Sons Plumbing & Rooter
Open 24/7 · 4.8 from 3,896 Google reviews
Open 24/7 · 4.9 from 1,637 Google reviews
Open 24/7 · 5.0 from 515 Google reviews
#5Roto-Rooter Plumbing & Water Cleanup
Open 24/7 · 4.9 from 375 Google reviews
#6Dymek's Freedom Plumbing, Inc
Open 24/7 · 5.0 from 1,063 Google reviews
#7Service Lion Plumbing Heating Air Electric
Open 24/7 · 4.7 from 1,173 Google reviews
Open 24/7 · 4.9 from 1,562 Google reviews
24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 1,418 is on the plumbers page.
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 Anaheim, 11 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 3,896 Google reviews, listed on Google as “Plumber”.
Based in Pomona, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,637 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 Brea, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.7★ from 1,173 Google reviews, listed on Google as “Plumber”.
Based in Arcadia, 13 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,562 Google reviews, listed on Google as “Plumber”.
Based in Orange, 13 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 1,980 Google reviews, listed on Google as “Plumber”.
Based in Orange, 15 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 1,715 Google reviews, listed on Google as “Plumber”.
Based in Avocado Heights, 1 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 130 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 Covina, 5 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 387 Google reviews, listed on Google as “Plumber”.
Based in Brea, 7 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 350 Google reviews, listed on Google as “Plumber”.
Based in Pomona, 8 mi away
Ranked #15 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 #16 because of its Google rating and trade focus: 4.8★ from 3,017 Google reviews, listed on Google as “Plumber”.
Based in San Dimas, 7 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 396 Google reviews, listed on Google as “Plumber”.
Based in Arcadia, 4 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 144 Google reviews, listed on Google as “Plumber”.
Based in Claremont, 9 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 346 Google reviews, listed on Google as “Plumber”.
Based in Brea, 8 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 287 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 14 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 1,233 Google reviews, listed on Google as “Plumber”.
Based in La Habra, 8 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 258 Google reviews, listed on Google as “Plumber”.
Based in Hacienda Heights, 6 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 12 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 560 Google reviews, listed on Google as “Plumber”.
Based in Fullerton, 11 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 752 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.
Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.
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 |
|---|---|---|
| Reputation | 15% | Google star rating, adjusted for how many reviews back it |
| Credentials | 15% | Active state license, bond and workers’ comp on file |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list |
| Recency | 5% | Share of reviews from the last 12 months |
| Availability | 15% | Weekly open hours, Saturday, Sunday, 24/7 or same-day |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) |
| Proximity | 5% | Based in the city scores highest, less the farther away it is |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are |