84 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Sandwich: Perma-Seal Basement Systems, CR Score 59/100; 4.9★ from 12,405 Google reviews; open Saturdays until 12 PM.
Best for emergencies (open 24/7): Acculevel, posts 24/7 hours; ranked #2 of 84.
Most-reviewed: U.S. Waterproofing, 1,411 Google reviews at 4.6★, the most of 84 ranked after Perma-Seal Basement Systems; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
84 Sandwich foundation repair companies are ranked here by CR Score, from ten published factors. 10 are open 24/7, 62 open Saturdays and 27 open Sundays, based on posted hours. The median Google rating is 5.0★ across 84 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Perma-Seal Basement Systems | 59 | 4.9★ (12,405) | Burr Ridge, 37 mi away | Sat | Overall |
| 2 | Acculevel | 59 | 4.9★ (420) | Rochelle, 30 mi away | 24/7 | Emergencies |
| 3 | U.S. Waterproofing | 57 | 4.6★ (1,411) | Schaumburg, 40 mi away | 24/7 | Most reviews |
| 4 | Accu-Dry Waterproofing & Concrete Pumping, Inc. | 56 | 4.9★ (196) | Westmont, 34 mi away | Sat · Sun · Evenings | — |
| 5 | Basement Buddies Waterproofing | 55 | 4.7★ (35) | Wheaton, 30 mi away | 24/7 | — |
| 6 | ULB-DRY Waterproofing | 55 | 4.9★ (60) | Villa Park, 38 mi away | 24/7 | — |
| 7 | Seepage Seal | 55 | 5.0★ (57) | Lemont, 32 mi away | Sat · Sun · Evenings | — |
| 8 | Basement Bros A-Z | 54 | 5.0★ (34) | Naperville, 21 mi away | Sat | — |
| 9 | OC Property Solutions Heating, Cooling, Plumbing, & Electric | 54 | 5.0★ (228) | Plainfield, 20 mi away | 24/7 | — |
| 10 | L&P BASEMENT WATERPROOFING LLC INSURANCE & BONDED | 54 | 4.9★ (52) | Glendale Heights, 34 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: 4.9★ from 12,405 Google reviews, the most in Sandwich.
Based in Rochelle, 30 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 420 Google reviews, listed on Google as “Waterproofing service”.
Based in Schaumburg, 40 mi away
Ranked #3 because of its Google rating and trade focus: 4.6★ from 1,411 Google reviews, listed on Google as “Waterproofing service”.
Based in Westmont, 34 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 196 Google reviews, listed on Google as “Waterproofing service”.
Based in Wheaton, 30 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 35 Google reviews, listed on Google as “Waterproofing service”.
Based in Villa Park, 38 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 60 Google reviews, listed on Google as “Waterproofing service”.
Based in Lemont, 32 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Waterproofing service”.
Based in Naperville, 21 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Waterproofing service”.
Based in Plainfield, 20 mi away
Ranked #9 because of its Google rating and review volume: 5.0★ from 228 Google reviews.
Based in Glendale Heights, 34 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 52 Google reviews, listed on Google as “Waterproofing service”.
Based in Batavia, 21 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 38 Google reviews, listed on Google as “Waterproofing service”.
Based in North Aurora, 19 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Waterproofing service”.
Based in Schaumburg, 37 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 577 Google reviews, listed on Google as “Waterproofing service”.
Based in Village of Campton Hills, 40 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 119 Google reviews, listed on Google as “Waterproofing service”.
Based in Oswego, 16 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Waterproofing service”.
Based in Naperville, 25 mi away
Ranked #16 because of its Google rating and trade focus: 4.1★ from 13 Google reviews, listed on Google as “Waterproofing service”.
Based in West Chicago, 27 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Waterproofing service”.
Based in Evergreen Park, 31 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Waterproofing service”.
Based in Plainfield, 20 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Waterproofing service”.
Based in Carpentersville, 39 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Waterproofing service”.
Based in Winfield, 34 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Waterproofing service”.
Based in Aurora, 18 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Waterproofing service”.
Based in Saint Charles, 23 mi away
Ranked #23 because of its Google rating and availability: 4.8★ from 94 Google reviews, open 24/7.
Based in Braidwood, 33 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 63 Google reviews, listed on Google as “Waterproofing service”.
Based in Franklin Park, 38 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Waterproofing service”.
#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 84 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 |
|---|---|---|
| America's Best Basement Waterproofing | 3.0★ (2) | 36 mi |
| Basement Seepage Experts | 5.0★ (1) | 38 mi |
| Basement Waterstoppers | 5.0★ (2) | 26 mi |
| Chicago Concrete & Waterproofing Company | 22 mi | |
| Concrete Correctors Inc | 3.0★ (2) | 31 mi |
| Covenant Waterproofing | 5.0★ (2) | 35 mi |
| Crack Attack Team | 4.0★ (49) | In Sandwich |
| crs waterproofing | 20 mi | |
| CRS Waterproofing Basement Specialist | 5.0★ (2) | 40 mi |
| Fresh Page Home Improvement | 5.0★ (2) | 27 mi |
| Gette Concrete | In Sandwich | |
| Kost Concrete | 5.0★ (2) | 36 mi |
| Matson Waterproofing Solutions | 5.0★ (2) | 31 mi |
| Midwestern Concrete & Construction, Inc | 4.1★ (9) | In Sandwich |
| Pro Foundation Fixers | 25 mi | |
| Proactive Structured Solutions | 5.0★ (2) | 29 mi |
| RM Waterproofing & Concrete Restoration, Inc. | 5.0★ (1) | 36 mi |
| Sebright Water-proofing | 5.0★ (1) | 29 mi |
| Solid Concrete Services LLC | 5.0★ (1) | 36 mi |
| TMD Construction | 5.0★ (2) | 35 mi |
National price ranges in USD, not adjusted for Sandwich. 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 84 Sandwich 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 Sandwich 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 |