Ranked #1 because of its Google rating and review volume: 5.0★ from 258 Google reviews.
- 5.0★ from 258 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 155 N Lake Ave Suite 800,874, Pasadena, CA 91101
208 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Pomona: Green Ladder Roofing and Waterproofing, CR Score 59/100; 5.0★ from 258 Google reviews; open 24/7.
Best for emergencies (open 24/7): Dalinghaus Foundation Repair, posts 24/7 hours; ranked #2 of 208.
Most-reviewed: Saber, 1,011 Google reviews at 4.9★, the most of 208 ranked; ranked #22.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
208 Pomona foundation repair companies are ranked here by CR Score, from ten published factors. 29 are open 24/7, 137 open Saturdays and 81 open Sundays, based on posted hours. The median Google rating is 5.0★ across 208 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Green Ladder Roofing and Waterproofing | 59 | 5.0★ (258) | Pasadena, 23 mi away | 24/7 | Overall |
| 2 | Dalinghaus Foundation Repair | 58 | 4.9★ (733) | Lake Elsinore, 35 mi away | 24/7 | Emergencies |
| 3 | Professional Foundation Repair | 58 | 4.9★ (216) | Garden Grove, 24 mi away | 24/7 | — |
| 4 | Pro-Seal Systems | 57 | 5.0★ (9) | Glendora, 9 mi away | Sat · Sun | — |
| 5 | Infinity Shower Pans | 56 | 5.0★ (17) | Whittier, 18 mi away | Sat · Sun · Evenings | — |
| 6 | Groundworks | 55 | 4.9★ (135) | Ontario, 7 mi away | Sat · Sun · Evenings | — |
| 7 | Kaliber Roofing Inc | 55 | 4.8★ (82) | Montclair, 4 mi away | Sat · Sun · Evenings | — |
| 8 | Cabral Roofing & Waterproofing | 55 | 4.6★ (9) | San Dimas, 5 mi away | 24/7 | — |
| 9 | Dalinghaus Foundation Repair | 55 | 5.0★ (53) | Irvine, 29 mi away | 24/7 | — |
| 10 | CBS Construction Services | 55 | 4.9★ (15) | Huntington Beach, 27 mi away | Sat · Sun · Evenings | — |
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 because of its Google rating and review volume: 5.0★ from 258 Google reviews.
Based in Lake Elsinore, 35 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 733 Google reviews.
Based in Garden Grove, 24 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 216 Google reviews.
Based in Glendora, 9 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Waterproofing service”.
Based in Whittier, 18 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Waterproofing service”.
Based in Ontario, 7 mi away
Ranked #6 because of its Google rating and review volume: 4.9★ from 135 Google reviews.
Based in Montclair, 4 mi away
Ranked #7 because of its Google rating and review volume: 4.8★ from 82 Google reviews.
Based in San Dimas, 5 mi away
Ranked #8 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Roofing contractor”.
Based in Irvine, 29 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Concrete contractor”.
Based in Huntington Beach, 27 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Waterproofing service”.
Based in Glendora, 8 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Waterproofing service”.
Based in Long Beach, 31 mi away
Ranked #12 because of its Google rating and review volume: 4.8★ from 705 Google reviews.
Based in Glendora, 8 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based in Orange, 17 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Waterproofing service”.
Based in Norwalk, 20 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Waterproofing service”.
Based in Pomona
Ranked #16 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Siding contractor”.
Based in Los Angeles, 25 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Roofing contractor”.
Based in Chino, 10 mi away
Ranked #18 because of its Google rating and review volume: 4.9★ from 100 Google reviews.
Based in Adelanto, 19 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Waterproofing service”.
Based in Los Angeles, 35 mi away
Ranked #20 because of its Google rating and review volume: 5.0★ from 253 Google reviews.
Based in Placentia, 14 mi away
Ranked #21 because of its Google rating and trade focus: 4.3★ from 24 Google reviews, listed on Google as “Waterproofing service”.
Based in Paramount, 27 mi away
Ranked #22 because of its Google rating and review volume: 4.9★ from 1,011 Google reviews, the most in Pomona.
Based in Irvine, 28 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 398 Google reviews.
Based in Beverly Hills, 38 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “General contractor”.
Based in Huntington Beach, 28 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Roofing contractor”.
#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 208 ranked foundation repair companies here; the rest are on their profiles.
20 more foundation repair companies within 40 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 |
|---|---|---|
| A-Z Foundation Contractors | 5.0★ (2) | 31 mi |
| ACE Restoration & Waterproofing, Inc. | 5.0★ (2) | 15 mi |
| Aero Construction Inc | 1.0★ (1) | In Pomona |
| Best Ever Waterproofing | 5.0★ (2) | 30 mi |
| CALIFORNIA ROOF COATINGS | 4.0★ (2) | 3 mi |
| Cis Roofing Waterproofing Solar | 5.0★ (2) | 27 mi |
| Dan’s Roofing Company Riverside | 5.0★ (2) | 22 mi |
| Dominguez Construction | 3.0★ (2) | 11 mi |
| EFP waterproofing | 5.0★ (2) | 31 mi |
| Freedom Chemical Corporation | 5.0★ (2) | 27 mi |
| Innovative Painting & Waterproofing | 5.0★ (2) | 12 mi |
| J V Ornamental Iron | 5.0★ (6) | In Pomona |
| Johnny construction | In Pomona | |
| LA Creative Concrete | 5.0★ (2) | In Pomona |
| Mr. Rooter Plumbing of Pomona Valley | 4.9★ (131) | In Pomona |
| Professional Foundation Repair | 5.0★ (2) | 28 mi |
| Rooter Hero Plumbing & Air | 4.9★ (1,637) | In Pomona |
| Slater Waterproofing Inc | 3.0★ (2) | 5 mi |
| Spectra Company | 4.0★ (9) | In Pomona |
| Zapata Reinforcing Steel | In Pomona |
National price ranges in USD, not adjusted for Pomona. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Foundation repair | $2,225 | $5,174 | $8,133 | Per project: typical range of customer-reported repairs. US national range | October 2026 |
We scored 208 Pomona foundation repair companies 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 Pomona 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 |