Top 50 of 1,308 water damage restoration companies, in emergency orderUpdated 0 paid placements in this rankingHow we rank
25 of the 50 water damage restoration companies 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 water damage restoration in Walnut: Stanley Steemer, 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 | Stanley Steemer | 66 | 4.8★ (2,345) | Anaheim, 11 mi away | 24/7 |
| 2 | Roto-Rooter Plumbing & Water Cleanup | 65 | 4.8★ (1,330) | Ontario, 12 mi away | 24/7 |
| 3 | Roto-Rooter Plumbing & Water Cleanup | 65 | 4.9★ (434) | Diamond Bar, 3 mi away | 24/7 |
| 4 | SERVPRO of Diamond Bar/South Pomona | 65 | 5.0★ (271) | Diamond Bar, 3 mi away | 24/7 |
| 5 | Stanley Steemer | 63 | 4.9★ (2,500) | Colton, 32 mi away | 24/7 |
| 6 | SERVPRO of Walnut | 63 | 5.0★ (94) | Walnut | 24/7 |
| 7 | Allied Restoration | 63 | 4.8★ (133) | West Covina, 4 mi away | 24/7 |
| 8 | SERVPRO of Fountain Valley | 63 | 5.0★ (578) | Fountain Valley, 23 mi away | 24/7 |
| 9 | SERVPRO of Glendora/San Dimas | 63 | 5.0★ (122) | Glendora, 6 mi away | 24/7 |
| 10 | Restorerz Emergency Services | 63 | 5.0★ (178) | Placentia, 11 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.
Open 24/7 · 4.8 from 2,345 Google reviews
#2Roto-Rooter Plumbing & Water Cleanup
Open 24/7 · 4.8 from 1,330 Google reviews
#3Roto-Rooter Plumbing & Water Cleanup
Open 24/7 · 4.9 from 434 Google reviews
#4SERVPRO of Diamond Bar/South Pomona
Open 24/7 · 5.0 from 271 Google reviews
Open 24/7 · 4.9 from 2,500 Google reviews
Open 24/7 · 5.0 from 94 Google reviews
Open 24/7 · 4.8 from 133 Google reviews
Open 24/7 · 5.0 from 578 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 1,308 is on the water damage restoration companies 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 because of its Google rating and trade focus: 4.8★ from 2,345 Google reviews, listed on Google as “Water damage restoration service”.
Based in Ontario, 12 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 1,330 Google reviews, listed on Google as “Water damage restoration service”.
Based in Diamond Bar, 3 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 434 Google reviews, listed on Google as “Water damage restoration service”.
Based in Diamond Bar, 3 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 271 Google reviews, listed on Google as “Water damage restoration service”.
Based in Colton, 32 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 2,500 Google reviews, listed on Google as “Water damage restoration service”.
Based in Walnut
Ranked #6 because of its Google rating and trade focus: 5.0★ from 94 Google reviews, listed on Google as “Water damage restoration service”.
Based in West Covina, 4 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 133 Google reviews, listed on Google as “Water damage restoration service”.
Based in Fountain Valley, 23 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 578 Google reviews, listed on Google as “Water damage restoration service”.
Based in Glendora, 6 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 122 Google reviews, listed on Google as “Water damage restoration service”.
Based in Placentia, 11 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 178 Google reviews, listed on Google as “Water damage restoration service”.
Based in Riverside, 24 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 710 Google reviews, listed on Google as “Water damage restoration service”.
Based in Anaheim, 13 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 192 Google reviews, listed on Google as “Water damage restoration service”.
Based in Diamond Bar, 2 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 75 Google reviews, listed on Google as “Water damage restoration service”.
Based in Rowland Heights, 3 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “Water damage restoration service”.
Based in Covina, 5 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Water damage restoration service”.
Based in Westminster, 19 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 380 Google reviews, listed on Google as “Water damage restoration service”.
Based in Brea, 14 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 213 Google reviews, listed on Google as “Water damage restoration service”.
Based in Santa Fe Springs, 12 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 134 Google reviews, listed on Google as “Water damage restoration service”.
Based in Rancho Cucamonga, 18 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 213 Google reviews, listed on Google as “Water damage restoration service”.
Based in Orange, 15 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 191 Google reviews, listed on Google as “Water damage restoration service”.
Based in Monrovia, 11 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “Water damage restoration service”.
Based in Santa Ana, 22 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 438 Google reviews, listed on Google as “Water damage restoration service”.
Based in Baldwin Park, 8 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Water damage restoration service”.
Based in Glendora, 7 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 68 Google reviews, listed on Google as “Water damage restoration service”.
Based in Huntington Beach, 26 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 475 Google reviews, listed on Google as “Water damage restoration service”.
#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 water damage restoration companies 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 |