58 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Piñon Hills: Green Ladder Roofing and Waterproofing, CR Score 60/100; 5.0★ from 258 Google reviews; open 24/7.
Best for emergencies (open 24/7): Cabral Roofing & Waterproofing, posts 24/7 hours; ranked #7 of 58.
Most-reviewed: Alpha Structural, Inc., 194 Google reviews at 4.8★, the most of 58 ranked after Green Ladder Roofing and Waterproofing; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
58 Piñon Hills foundation repair companies are ranked here by CR Score, from ten published factors. 11 are open 24/7, 42 open Saturdays and 24 open Sundays, based on posted hours. The median Google rating is 4.9★ across 58 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Green Ladder Roofing and Waterproofing | 60 | 5.0★ (258) | Pasadena, 34 mi away | 24/7 | Overall |
| 2 | Pro-Seal Systems | 55 | 5.0★ (9) | Glendora, 24 mi away | Sat · Sun | — |
| 3 | Groundworks | 55 | 4.9★ (135) | Ontario, 27 mi away | Sat · Sun · Evenings | — |
| 4 | Kaliber Roofing Inc | 53 | 4.8★ (82) | Montclair, 27 mi away | Sat · Sun · Evenings | — |
| 5 | Ojeda Hot Mop Shower Pans | 53 | 5.0★ (7) | Glendora, 24 mi away | Sat | — |
| 6 | Alpha Structural, Inc. | 53 | 4.8★ (194) | Sunland, 40 mi away | Sat · Sun | Most reviews |
| 7 | Cabral Roofing & Waterproofing | 53 | 4.6★ (9) | San Dimas, 25 mi away | 24/7 | Emergencies |
| 8 | Easy Builders Construction | 52 | 5.0★ (21) | Glendora, 26 mi away | 24/7 | — |
| 9 | Handyman Jovani & Air conditioner repairs | 52 | 4.9★ (56) | Adelanto, 10 mi away | Evenings | — |
| 10 | J P Roofing | 52 | 4.9★ (100) | Chino, 29 mi away | Sat | — |
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, the most in Piñon Hills.
Based in Glendora, 24 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Waterproofing service”.
Based in Ontario, 27 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 135 Google reviews.
Based in Montclair, 27 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 82 Google reviews.
Based in Glendora, 24 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Waterproofing service”.
Based in Sunland, 40 mi away
Ranked #6 because of its Google rating and review volume: 4.8★ from 194 Google reviews.
Based in San Dimas, 25 mi away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Roofing contractor”.
Based in Glendora, 26 mi away
Ranked #8 because of its Google rating and review volume: 5.0★ from 21 Google reviews.
Based in Adelanto, 10 mi away
Ranked #9 because of its Google rating and review volume: 4.9★ from 56 Google reviews.
Based in Chino, 29 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 100 Google reviews.
Based in Los Angeles, 40 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 92 Google reviews.
Based in Pasadena, 34 mi away
Ranked #12 because of its Google rating and review volume: 5.0★ from 26 Google reviews.
Based in La Crescenta-Montrose, 37 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Demolition contractor”.
Based in Glendale, 40 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 10 Google reviews, listed on Google as “Waterproofing service”.
Based in Camp Pendleton South, 20 mi away
Ranked #15 because of its Google rating and availability: 4.6★ from 9 Google reviews, open 24/7.
Based in Pasadena, 35 mi away
Ranked #16 because of its Google rating and review volume: 5.0★ from 36 Google reviews.
Based in El Monte, 33 mi away
Ranked #17 because of its Google rating and review volume: 5.0★ from 30 Google reviews.
Based in Rancho Cucamonga, 25 mi away
Ranked #18 because of its Google rating and review volume: 4.8★ from 43 Google reviews.
Based in Corona, 39 mi away
Ranked #19 because of its Google rating and review volume: 4.7★ from 57 Google reviews.
Based in Yorba Linda, 39 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Construction company”.
Based in Glendale, 34 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 11 Google reviews, listed on Google as “Waterproofing service”.
Based in Pomona, 27 mi away
Ranked #22 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Siding contractor”.
Based in Riverside, 34 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Roofing contractor”.
Based in La Habra, 39 mi away
Ranked #24 because of its Google rating and review volume: 5.0★ from 26 Google reviews.
Based in Fontana, 34 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “General 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 58 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 |
|---|---|---|
| APEC Foundation Retrofit | 24 mi | |
| CALIFORNIA ROOF COATINGS | 4.0★ (2) | 26 mi |
| CalPro Paving | 5.0★ (1) | 31 mi |
| Cis Roofing Waterproofing Solar | 5.0★ (2) | 34 mi |
| Dan’s Roofing Company Riverside | 5.0★ (2) | 37 mi |
| Dominguez Construction | 3.0★ (2) | 28 mi |
| Earth Development | 5.0★ (1) | 7 mi |
| Ford Foundation Drilling | 5.0★ (1) | 26 mi |
| Ford Foundation Drilling | 20 mi | |
| Foundation Construction | 5.0★ (1) | 29 mi |
| Hi-Tech Waterproofing LLC | 5.0★ (1) | 23 mi |
| Highland - Build Foundation Baldwin Park | 5.0★ (1) | 30 mi |
| I.E. Epoxy Design | 27 mi | |
| Innovative Painting & Waterproofing | 5.0★ (2) | 38 mi |
| L|A Waterproofing & Coating | 20 mi | |
| MG Flooring Co | 20 mi | |
| Roofing & Waterproofing | 5.0★ (1) | 39 mi |
| Silver Leaf Construction Inc. | 5.0★ (1) | 20 mi |
| Slater Waterproofing Inc | 3.0★ (2) | 24 mi |
| The M&M Construction Group | 5.0★ (1) | 24 mi |
National price ranges in USD, not adjusted for Piñon Hills. 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 58 Piñon Hills 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 Piñon Hills 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 |