556 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in South Orange: Blue Umbrella Waterproofing, CR Score 64/100; 5.0★ from 412 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): ARD Waterproofing, posts 24/7 hours; ranked #2 of 556.
Most-reviewed: Quality 1st Basement Systems, 1,961 Google reviews at 4.8★, the most of 556 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
556 South Orange foundation repair companies are ranked here by CR Score, from ten published factors. 154 are open 24/7, 447 open Saturdays and 340 open Sundays, based on posted hours. The median Google rating is 5.0★ across 556 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Blue Umbrella Waterproofing | 64 | 5.0★ (412) | Cranford, 7 mi away | Sat · Sun · Evenings | Overall |
| 2 | ARD Waterproofing | 63 | 5.0★ (146) | Caldwell, 7 mi away | 24/7 | Emergencies |
| 3 | Pure Service Pro | 63 | 4.9★ (250) | East Hanover, 12 mi away | 24/7 | — |
| 4 | Groundworks | 62 | 4.9★ (586) | South Plainfield, 16 mi away | Sat · Sun · Evenings | — |
| 5 | United Waterproofing | 62 | 5.0★ (156) | Dover, 18 mi away | 24/7 | — |
| 6 | StrongBuild Masonry & Construction, Chimney repair, Foundation Waterproofing | 61 | 5.0★ (72) | Jersey City, 10 mi away | 24/7 | — |
| 7 | B Altmans Waterproofing | 61 | 4.8★ (136) | Staten Island, 12 mi away | 24/7 | — |
| 8 | Bonded Waterproofing Solutions | 61 | 5.0★ (130) | Bergenfield, 18 mi away | 24/7 | — |
| 9 | Pro Dry Waterproofing LLC | 61 | 4.9★ (129) | Rockaway, 17 mi away | 24/7 | — |
| 10 | A-1 Basement Solutions | 61 | 4.9★ (320) | Berkeley Heights, 7 mi away | Sat · 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 trade focus: 5.0★ from 412 Google reviews, listed on Google as “Waterproofing service”.
Based in Caldwell, 7 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 146 Google reviews, listed on Google as “Waterproofing service”.
Based in East Hanover, 12 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 250 Google reviews, listed on Google as “Waterproofing service”.
Based in South Plainfield, 16 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 586 Google reviews, listed on Google as “Waterproofing service”.
Based in Dover, 18 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 156 Google reviews, listed on Google as “Waterproofing service”.
Based in Jersey City, 10 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Waterproofing service”.
Based in Staten Island, 12 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 136 Google reviews, listed on Google as “Waterproofing service”.
Based in Bergenfield, 18 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Waterproofing service”.
Based in Rockaway, 17 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 129 Google reviews, listed on Google as “Waterproofing service”.
Based in Berkeley Heights, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 320 Google reviews, listed on Google as “Waterproofing service”.
Based in Staten Island, 15 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Waterproofing service”.
Based in Caldwell, 12 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “Waterproofing service”.
Based in Carlstadt, 12 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 42 Google reviews, listed on Google as “Waterproofing service”.
Based in Clifton, 9 mi away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 37 Google reviews, listed on Google as “Waterproofing service”.
Based in East Brunswick, 22 mi away
Ranked #15 because of its Google rating and review volume: 4.8★ from 1,961 Google reviews, the most in South Orange.
Based in Jamaica, 25 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 77 Google reviews, listed on Google as “Waterproofing service”.
Based in Bernardsville, 21 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Waterproofing service”.
Based in Clark, 8 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 84 Google reviews, listed on Google as “Waterproofing service”.
Based in Carteret, 15 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Foundation”.
Based in Avenel, 12 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Waterproofing service”.
Based in Scotch Plains, 10 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 8 Google reviews, listed on Google as “Waterproofing service”.
Based in Carteret, 14 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Waterproofing service”.
Based in Scotch Plains, 9 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 61 Google reviews, listed on Google as “Waterproofing service”.
Based in Bridgewater, 20 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Waterproofing service”.
Based in Newark, 5 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 11 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 556 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 |
|---|---|---|
| AAA Established Construction | 5.0★ (2) | 15 mi |
| Alert Roofing Construction | 5.0★ (2) | 2 mi |
| Apolo Contractor Corp | 4.5★ (2) | 5 mi |
| Apple City Construction | 5.0★ (2) | 15 mi |
| C&S Foundations Inc. | 3.0★ (2) | 5 mi |
| Gem Roofing & Waterproofing | 4.5★ (2) | 14 mi |
| Go Pro Basements | 3.0★ (2) | 8 mi |
| INFRARED ROOF INSPECTORS | 5.0★ (2) | 7 mi |
| Interstate Contracting And Restoration | 5.0★ (2) | 15 mi |
| Neptune Construction NY Inc | 5.0★ (2) | 15 mi |
| NN CONSTRUCTION BD CORPORATION WATERPROOFING AND ROOFING | 5.0★ (2) | 17 mi |
| NPC General Construction LLC | 5.0★ (2) | 16 mi |
| Nu-Look Home Improvement | 3.0★ (2) | 9 mi |
| Park Slope Best Waterproofing | 5.0★ (2) | 16 mi |
| Perfect Restoration inc | 5.0★ (2) | 18 mi |
| Power Roofing & Siding Williamsburg | 5.0★ (2) | 17 mi |
| Roofing Siding Acero | 3.0★ (2) | 5 mi |
| Sullivan Waterproofing and Restoration | 5.0★ (2) | 17 mi |
| The Foundation & Basement Expert | 5.0★ (2) | 15 mi |
| Waterproofing Guys | 5.0★ (2) | 6 mi |
National price ranges in USD, not adjusted for South Orange. 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 556 South Orange 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 South Orange 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 |