268 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Mercerville-Hamilton Square: ABSOLUTE Waterproofing & Renovations, CR Score 62/100; 5.0★ from 99 Google reviews; open 24/7.
Best for emergencies (open 24/7): Seal The Deal Waterproofing, posts 24/7 hours; ranked #7 of 268.
Most-reviewed: Quality 1st Basement Systems, 1,961 Google reviews at 4.8★, the most of 268 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
268 Mercerville-Hamilton Square foundation repair companies are ranked here by CR Score, from ten published factors. 63 are open 24/7, 188 open Saturdays and 116 open Sundays, based on posted hours. The median Google rating is 4.9★ across 268 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ABSOLUTE Waterproofing & Renovations | 62 | 5.0★ (99) | Bridgewater, 11 mi away | 24/7 | Overall |
| 2 | Groundworks | 61 | 4.8★ (1,286) | Montgomeryville, 30 mi away | Sat · Sun · Evenings | — |
| 3 | Jamison Basement Waterproofing | 61 | 5.0★ (1,583) | Oreland, 28 mi away | Sat | — |
| 4 | Groundworks | 60 | 4.9★ (586) | South Plainfield, 26 mi away | Sat · Sun · Evenings | — |
| 5 | Blue Umbrella Waterproofing | 59 | 5.0★ (412) | Cranford, 35 mi away | Sat · Sun · Evenings | — |
| 6 | 5 Star Waterproofing & Remodeling LLC | 59 | 5.0★ (43) | Atco, 11 mi away | Sat · Sun | — |
| 7 | Seal The Deal Waterproofing | 58 | 5.0★ (14) | Atco, 9 mi away | 24/7 | Emergencies |
| 8 | Quality 1st Basement Systems | 58 | 4.8★ (1,961) | East Brunswick, 28 mi away | — | Most reviews |
| 9 | Basement Gurus | 58 | 4.8★ (371) | Philadelphia, 24 mi away | Sat · Evenings | — |
| 10 | A J Waterproofing | 58 | 4.9★ (150) | Collegeville, 38 mi away | 24/7 | — |
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 in Mercerville-Hamilton Square
Based in Bridgewater, 11 mi away
Ranked #1 because of its Google rating and trade focus: 5.0★ from 99 Google reviews, listed on Google as “Waterproofing service”.
Based in Montgomeryville, 30 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 1,286 Google reviews, listed on Google as “Waterproofing service”.
Based in Oreland, 28 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 1,583 Google reviews, listed on Google as “Waterproofing service”.
Based in South Plainfield, 26 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 Cranford, 35 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 412 Google reviews, listed on Google as “Waterproofing service”.
Based in Atco, 11 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Waterproofing service”.
Based in Atco, 9 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Waterproofing service”.
Based in East Brunswick, 28 mi away
Ranked #8 because of its Google rating and review volume: 4.8★ from 1,961 Google reviews, the most in Mercerville-Hamilton Square.
Based in Philadelphia, 24 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 371 Google reviews, listed on Google as “Waterproofing service”.
Based in Collegeville, 38 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 150 Google reviews, listed on Google as “Waterproofing service”.
Based in Dover, 11 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Waterproofing service”.
Based in Mercerville, 3 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 59 Google reviews, listed on Google as “Concrete contractor”.
Based in Staten Island, 39 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 136 Google reviews, listed on Google as “Waterproofing service”.
Based in Cinnaminson, 11 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Foundation”.
Based in Lindenwold, 36 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Waterproofing service”.
Based in Berkeley Heights, 35 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 320 Google reviews, listed on Google as “Waterproofing service”.
Based in Bridgewater, 26 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Waterproofing service”.
Based in Radnor, 38 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Waterproofing service”.
Based in Willow Grove, 25 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 19 Google reviews, listed on Google as “Waterproofing service”.
Based in Bernardsville, 36 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Waterproofing service”.
Based in Philadelphia, 32 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Waterproofing service”.
Based in Staten Island, 39 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Waterproofing service”.
Based in Cinnaminson, 23 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Waterproofing service”.
Based in Freehold, 20 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Waterproofing service”.
Based in Bedminster, 20 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 54 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 268 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 |
|---|---|---|
| Advance Tech Waterproofing | 5.0★ (2) | 26 mi |
| Amaya Contractor LLC | 5.0★ (1) | 11 mi |
| Basement Waterproofing Specialists | 5.0★ (2) | 29 mi |
| BSK CONTRACTING | 5.0★ (1) | 11 mi |
| Dave Dolak General Contractor Inc | 5.0★ (1) | 11 mi |
| Delco Contracting | 4.5★ (2) | 11 mi |
| French Drains USA, LLC | 5.0★ (2) | 28 mi |
| Go Pro Basements | 3.0★ (2) | 35 mi |
| Interstate Contracting And Restoration | 5.0★ (2) | 27 mi |
| Jewson’s home improvements | 5.0★ (1) | 11 mi |
| JR Home Improvement | 3.0★ (2) | 28 mi |
| Keystone Waterproofing & Restoration Services | 5.0★ (1) | 10 mi |
| LaFerla Brothers Masonry & Hardscaping | 5.0★ (2) | 39 mi |
| Laszlo Masonry & Restoration | 5.0★ (2) | 28 mi |
| Marc Rossi Waterproofing | 5.0★ (2) | 38 mi |
| Nu-Look Home Improvement | 3.0★ (2) | 33 mi |
| Perfect Dry Basement | 5.0★ (2) | 19 mi |
| Riviera Home Builders | 5.0★ (2) | 22 mi |
| The Basic Companies - Basements, Bathrooms, Kitchens, Waterproofing | 4.5★ (2) | 13 mi |
| US Construction and Waterproofing LLC | 3.0★ (2) | 28 mi |
National price ranges in USD, not adjusted for Mercerville-Hamilton Square. 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 268 Mercerville-Hamilton Square 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 Mercerville-Hamilton Square 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 |