52 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Phelan: Green Ladder Roofing and Waterproofing, CR Score 87/100; 5.0★ from 258 Google reviews; open 24/7.
Best for emergencies (open 24/7): Cabral Roofing & Waterproofing, posts 24/7 hours; ranked #4 of 52.
Most-reviewed: Groundworks, 135 Google reviews at 4.9★, the most of 52 ranked after Green Ladder Roofing and Waterproofing; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
52 Phelan foundation repair companies are ranked here by CR Score, from 8 published factors. 9 are open 24/7, 37 open Saturdays and 21 open Sundays, based on posted hours. The median Google rating is 4.9★ across 52 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Green Ladder Roofing and Waterproofing | 87 | 5.0★ (258) | Pasadena, 37 mi away | 24/7 | Overall |
| 2 | Pro-Seal Systems | 80 | 5.0★ (9) | Glendora, 26 mi away | Sat · Sun | — |
| 3 | Groundworks | 80 | 4.9★ (135) | Ontario, 27 mi away | Sat · Sun · Evenings | Most reviews |
| 4 | Cabral Roofing & Waterproofing | 79 | 4.6★ (9) | San Dimas, 27 mi away | 24/7 | Emergencies |
| 5 | Easy Builders Construction | 79 | 5.0★ (21) | Glendora, 28 mi away | 24/7 | — |
| 6 | Kaliber Roofing Inc | 78 | 4.8★ (82) | Montclair, 27 mi away | Sat · Sun · Evenings | — |
| 7 | Red Turtle Roofing of Pasadena | 78 | 5.0★ (26) | Pasadena, 37 mi away | 24/7 | — |
| 8 | Dreyfuss Grading | 77 | 4.6★ (9) | Camp Pendleton South, 22 mi away | 24/7 | — |
| 9 | Double Eagle Roofing & Waterproofing | 77 | 5.0★ (3) | Riverside, 32 mi away | 24/7 | — |
| 10 | Ojeda Hot Mop Shower Pans | 76 | 5.0★ (7) | Glendora, 25 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 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 Google reviews on this list (258).
Based in Glendora, 26 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, 135 Google reviews.
Based in San Dimas, 27 mi away
Ranked #4 because of its Google rating and availability: 4.6★ from 9 Google reviews, open 24/7.
Based in Glendora, 28 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based in Montclair, 27 mi away
Ranked #6 because of its Google rating and review volume: 4.8★ from 82 Google reviews, 82 Google reviews.
Based in Pasadena, 37 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 26 Google reviews, open 24/7.
Based in Camp Pendleton South, 22 mi away
Ranked #8 because of its Google rating and availability: 4.6★ from 9 Google reviews, open 24/7.
Based in Riverside, 32 mi away
Ranked #9 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based in Glendora, 25 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Waterproofing service”.
Based in Chino, 28 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 100 Google reviews, 100 Google reviews.
Based in Pasadena, 39 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 36 Google reviews, open 7 days a week.
Based in El Monte, 36 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 30 Google reviews, open 7 days a week.
Based in Corona, 38 mi away
Ranked #14 because of its Google rating and availability: 4.7★ from 57 Google reviews, open 24/7.
Based in Rancho Cucamonga, 24 mi away
Ranked #15 because of its Google rating and review volume: 4.8★ from 43 Google reviews, 43 Google reviews.
Based in Fontana, 38 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 7 days a week.
Based in Pomona, 28 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 7 days a week.
Based in Adelanto, 13 mi away
Ranked #18 because of its Google rating and review volume: 4.9★ from 56 Google reviews, 56 Google reviews.
Based in Pomona, 28 mi away
Ranked #19 because of its Google rating and availability: 4.3★ from 6 Google reviews, open 7 days a week.
Based in El Monte, 36 mi away
Ranked #20 because of its Google rating and availability: 4.8★ from 17 Google reviews, open 7 days a week.
Based in West Covina, 32 mi away
Ranked #21 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 7 days a week.
Based in Orange, 38 mi away
Ranked #22 because of its Google rating and availability: 4.8★ from 4 Google reviews, open 24/7.
Based in Adelanto, 39 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Waterproofing service”.
Based in Pomona, 27 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 7 days a week.
Based in Rancho Cucamonga, 21 mi away
Ranked #25 because of its Google rating and review volume: 4.6★ from 18 Google reviews, 18 Google reviews.
#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 52 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 |
|---|---|---|
| Budget Remodeling Company | In Phelan | |
| CALIFORNIA ROOF COATINGS | 4.0★ (2) | 27 mi |
| CalPro Paving | 5.0★ (1) | 28 mi |
| Cis Roofing Waterproofing Solar | 5.0★ (2) | 38 mi |
| Dan’s Roofing Company Riverside | 5.0★ (2) | 35 mi |
| Dominguez Construction | 3.0★ (2) | 30 mi |
| Earth Development | 5.0★ (1) | 3 mi |
| Ford Foundation Drilling | 5.0★ (1) | 28 mi |
| Ford Foundation Drilling | 22 mi | |
| Foundation Construction | 5.0★ (1) | 28 mi |
| Hi-Tech Waterproofing LLC | 5.0★ (1) | 27 mi |
| Highland - Build Foundation Baldwin Park | 5.0★ (1) | 32 mi |
| HL Havens Construction | 5.0★ (1) | In Phelan |
| Innovative Painting & Waterproofing | 5.0★ (2) | 39 mi |
| Jergensen Concrete Inc. | 4.4★ (7) | In Phelan |
| Professional Foundation Repair | 5.0★ (2) | 38 mi |
| Roofing & Waterproofing | 5.0★ (1) | 39 mi |
| Silver Leaf Construction Inc. | 5.0★ (1) | 22 mi |
| Slater Waterproofing Inc | 3.0★ (2) | 24 mi |
| The M&M Construction Group | 5.0★ (1) | 25 mi |
National price ranges in USD, not adjusted for Phelan. 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 52 Phelan foundation repair companies on 8 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. Unknown factors are left out of the score, 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 Phelan data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |