88/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 258 Google reviews, open 24/7.
- 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
Best Foundation Repair Companies in Downey, CA (2026)
251 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Downey: Green Ladder Roofing and Waterproofing, CR Score 88/100; 5.0★ from 258 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Professional Foundation Repair, posts 24/7 hours; ranked #2 of 251.
- 42
Most-reviewed: Saber, 1,011 Google reviews at 4.9★, the most of 251 ranked; ranked #42.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
251 Downey foundation repair companies are ranked here by CR Score, from 8 published factors. 34 are open 24/7, 160 open Saturdays and 103 open Sundays, based on posted hours. The median Google rating is 5.0★ across 251 rated businesses.
Top 10 foundation repair companies in Downey at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Green Ladder Roofing and Waterproofing | 88 | 5.0★ (258) | Pasadena, 14 mi away | 24/7 | Overall |
| 2 | Professional Foundation Repair | 87 | 4.9★ (216) | Garden Grove, 13 mi away | 24/7 | Emergencies |
| 3 | Infinity Shower Pans | 84 | 5.0★ (17) | Whittier, 6 mi away | Sat · Sun · Evenings | — |
| 4 | Home Renew 360 Roofing I Construction I Energy | 83 | 4.8★ (705) | Long Beach, 9 mi away | Sat · Sun | — |
| 5 | LA Foundation Repair Los Angeles | 83 | 5.0★ (34) | Beverly Hills, 17 mi away | 24/7 | — |
| 6 | CBS Construction Services | 82 | 4.9★ (15) | Huntington Beach, 15 mi away | Sat · Sun · Evenings | — |
| 7 | Always Roofing & Waterproofing Corp. | 82 | 5.0★ (16) | Los Angeles, 7 mi away | 24/7 | — |
| 8 | Green Advisor Inc. | 82 | 5.0★ (253) | Los Angeles, 16 mi away | Sat · Sun · Evenings | — |
| 9 | Dalinghaus Foundation Repair | 82 | 5.0★ (53) | Irvine, 32 mi away | 24/7 | — |
| 10 | Foundation Installation | 82 | 4.8★ (62) | Encino, 28 mi away | 24/7 | — |
The 251 best foundation repair companies in Downey, ranked
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.
Based in Garden Grove, 13 mi away
87/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 216 Google reviews, open 24/7.
- 4.9★ from 216 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7441 Anaconda Ave, Garden Grove, CA 92841
Based in Whittier, 6 mi away
84/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 17 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 14445 Tedford Dr, Whittier, CA 90604
Based in Long Beach, 9 mi away
83/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 705 Google reviews, 705 Google reviews.
- 4.8★ from 705 Google reviews
- Hours
- Mon–Sun 8:30 AM–5 PM
- Address
- 1500 W Carson St Suite 201, Long Beach, CA 90810
Based in Beverly Hills, 17 mi away
83/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 34 Google reviews, open 24/7.
- 5.0★ from 34 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Huntington Beach, 15 mi away
82/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 15 Google reviews
- Hours
- Mon–Fri 6 AM–7 PM · Sat–Sun 8 AM–2 PM
- Address
- 15571 Producer Ln suite h, Huntington Beach, CA 92649
Based in Los Angeles, 7 mi away
82/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 16 Google reviews, open 24/7.
- 5.0★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 231 N Record Ave, Los Angeles, CA 90063
Based in Los Angeles, 16 mi away
82/100CR ScoreRanked #8 because of its Google rating and review volume: 5.0★ from 253 Google reviews, 253 Google reviews.
- 5.0★ from 253 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 9 AM–5 PM · Sun 8 AM–7 PM
- Address
- 7660 Beverly Blvd, Los Angeles, CA 90036
Based in Irvine, 32 mi away
82/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 53 Google reviews, open 24/7.
- 5.0★ from 53 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9891 Irvine Center Dr, Irvine, CA 92618
Based in Encino, 28 mi away
82/100CR ScoreRanked #10 because of its Google rating and availability: 4.8★ from 62 Google reviews, open 24/7.
- 4.8★ from 62 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 18740 Ventura Blvd, Tarzana, CA 91356
Based in Van Nuys, 25 mi away
82/100CR ScoreRanked #11 because of its Google rating and availability: 4.7★ from 55 Google reviews, open 24/7.
- 4.7★ from 55 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 14349 Victory Blvd, Van Nuys, CA 91401
Based in Huntington Beach, 18 mi away
81/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 15 Google reviews, open 24/7.
- 5.0★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 17551 Jefferson Ln Unit A, Huntington Beach, CA 92647
Based in Los Angeles, 17 mi away
81/100CR ScoreRanked #13 because of its Google rating and availability: 4.8★ from 73 Google reviews, open 24/7.
- 4.8★ from 73 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3520 Overland Ave #A29, Los Angeles, CA 90034
Based in Bellflower, 3 mi away
81/100CR ScoreRanked #14 because of its Google rating and availability: 4.0★ from 4 Google reviews, open 24/7.
- 4.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9508 Darnell St, Bellflower, CA 90706
Based in Pasadena, 14 mi away
80/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 26 Google reviews, open 24/7.
- 5.0★ from 26 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 35 N Lake Ave 7th floor suite 22, Pasadena, CA 91101
#16 Pro-Seal Systems
Based in Glendora, 20 mi away
80/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 9 Google reviews
- Hours
- Mon–Sun 8 AM–4 PM
- Address
- 307 S Vermont Ave # H, Glendora, CA 91741
Based in Florence-Graham, 14 mi away
80/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 24 Google reviews, open 24/7.
- 5.0★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Los Angeles, 14 mi away
80/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 100 Google reviews, open 7 days a week.
- 5.0★ from 100 Google reviews
- Hours
- Mon–Sun 7 AM–10 PM
- Address
- 3108 Glendale Blvd, Los Angeles, CA 90039
Based in Los Angeles, 17 mi away
80/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 24 Google reviews, open 24/7.
- 5.0★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8322 Beverly Blvd #301, Los Angeles, CA 90048
Based in La Crescenta-Montrose, 21 mi away
80/100CR ScoreRanked #20 because of its Google rating and availability: 4.7★ from 12 Google reviews, open 24/7.
- 4.7★ from 12 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2852 Foothill Blvd, La Crescenta-Montrose, CA 91214
Based in Los Angeles, 11 mi away
80/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 92 Google reviews, open 24/7.
- 4.9★ from 92 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 124 E Avenue 40, Los Angeles, CA 90031
#22 Horizon Roofing
Based in Irvine, 24 mi away
80/100CR ScoreRanked #22 because of its Google rating and availability: 4.8★ from 59 Google reviews, open 24/7.
- 4.8★ from 59 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2030 Main St # 1300, Irvine, CA 92614
Based in Los Angeles, 27 mi away
79/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 44 Google reviews
- Hours
- Mon–Thu 6 AM–7 PM · Fri 6 AM–2 PM · Sat closed · Sun 7 AM–7 PM
- Address
- 7516 Valjean Ave, Los Angeles, CA 91406
Based in Lynwood, 5 mi away
79/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 7 days a week.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Sun 6 AM–11:30 PM
- Address
- 11245 Long Beach Blvd, Lynwood, CA 90262
#25 DK Shower Pans
Based in Norwalk, 5 mi away
79/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 14006 Gracebee Ave, Norwalk, CA 90650
Foundation repair companies ranked #26 to #50
#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 251 ranked foundation repair companies here; the rest are on their profiles.
Also serving Downey
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 |
|---|---|---|
| 2Gun Roofing & Waterproofing | 5.0★ (2) | 17 mi |
| A-Z Foundation Contractors | 5.0★ (2) | 11 mi |
| ACE Restoration & Waterproofing, Inc. | 5.0★ (2) | 16 mi |
| ALMAX Construction & Construction | 3.0★ (2) | In Downey |
| Bay Harbor Roofing & Waterproofing | 3.0★ (2) | 17 mi |
| Builders Trust Construction | 5.0★ (2) | 14 mi |
| Cis Roofing Waterproofing Solar | 5.0★ (2) | 19 mi |
| Dominguez Construction | 3.0★ (2) | 16 mi |
| Efficient Home Builders Inc. | In Downey | |
| EFP waterproofing | 5.0★ (2) | 11 mi |
| Gamma Heating & AIr conditioning | 5.0★ (6) | In Downey |
| Innovative Painting & Waterproofing | 5.0★ (2) | 14 mi |
| S&C SERVICES AND COMMERCIALIZATION INC | 5.0★ (4) | In Downey |
| Saiyan Electric Inc | 4.9★ (54) | In Downey |
| Stephens Mechanical Corp - Southwest division | 5.0★ (1) | In Downey |
| Thomas Murray Waterproofing and Roofing | 4.5★ (2) | 17 mi |
| Washing Raccoons | 5.0★ (2) | 16 mi |
| Waterproofing and Roofing Solutions, Inc. | 5.0★ (2) | 18 mi |
| White Castle Construction | 5.0★ (2) | 16 mi |
| Zerik Scales | 5.0★ (2) | 12 mi |
How much do foundation repair companies cost in Downey?
National price ranges in USD, not adjusted for Downey. 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 |
How we ranked Downey foundation repair companies
We scored 251 Downey 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 Downey 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 |
Foundation repair companies in Downey: frequently asked questions
Who is the best foundation repair company in Downey?
By CR Score, the highest-ranked foundation repair company in Downey, CA is Green Ladder Roofing and Waterproofing with a CR Score of 88/100. It has 5.0★ from 258 Google reviews. It is open 24/7. Professional Foundation Repair (#2) and Infinity Shower Pans (#3) follow. We ranked 251 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in Downey?
ContractorsRanked ranks 251 foundation repair companies serving Downey, CA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Downey are open 24/7?
34 ranked foundation repair companies in Downey post 24/7 hours. The highest-ranked are Green Ladder Roofing and Waterproofing (#1), Professional Foundation Repair (#2) and LA Foundation Repair Los Angeles (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Downey work on weekends?
160 of 251 ranked foundation repair companies post Saturday hours and 103 post Sunday hours. The highest-ranked open Saturdays are Green Ladder Roofing and Waterproofing (#1), Professional Foundation Repair (#2) and Infinity Shower Pans (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Downey?
Foundation repair typically costs $2,225 to $8,133, with $5,174 typical (Per project: typical range of customer-reported repairs. US national range). This is a national range, not adjusted for Downey. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Downey foundation repair companies have?
The median Google rating among 251 rated foundation repair companies in Downey is 5.0★, with a median of 15 reviews. Saber has the most, 1,011 reviews, and ranks #42. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank foundation repair companies?
Each foundation repair company gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Downey count in this ranking?
Yes, if they are within 40 mi of the Downey city center, our service radius for foundation repair companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Downey
- October 2026: CR Scores recalculated for 251 foundation repair companies serving Downey.
- October 2026: 1 duplicate listing merged.
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