62/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 99 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 99 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Foundation Repair Companies in Hamilton Square, NJ (2026)
267 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Hamilton Square: ABSOLUTE Waterproofing & Renovations, CR Score 62/100; 5.0★ from 99 Google reviews; open 24/7.
- 7
Best for emergencies (open 24/7): Seal The Deal Waterproofing, posts 24/7 hours; ranked #7 of 267.
- 8
Most-reviewed: Quality 1st Basement Systems, 1,961 Google reviews at 4.8★, the most of 267 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
267 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 267 rated businesses.
Top 10 foundation repair companies in Hamilton Square at a glance
| 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 | 4.9★ (586) | South Plainfield, 26 mi away | Sat · Sun · Evenings | — |
| 3 | Groundworks | 61 | 4.8★ (1,286) | Montgomeryville, 31 mi away | Sat · Sun · Evenings | — |
| 4 | Jamison Basement Waterproofing | 60 | 5.0★ (1,583) | Oreland, 29 mi away | Sat | — |
| 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 | 59 | 5.0★ (14) | Atco, 8 mi away | 24/7 | Emergencies |
| 8 | Quality 1st Basement Systems | 58 | 4.8★ (1,961) | East Brunswick, 27 mi away | — | Most reviews |
| 9 | Basement Gurus | 58 | 4.8★ (371) | Philadelphia, 25 mi away | Sat · Evenings | — |
| 10 | International Waterproofing & Construction LLC | 58 | 5.0★ (29) | Dover, 11 mi away | Sat · Sun | — |
The 267 best foundation repair companies in Hamilton Square, ranked
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.
#2 Groundworks
Based in South Plainfield, 26 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 586 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 586 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 2624 Hamilton Blvd, South Plainfield, NJ 07080
#3 Groundworks
Based in Montgomeryville, 31 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 1,286 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 1,286 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 106 Park Dr, Montgomeryville, PA 18936
Based in Oreland, 29 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 1,583 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 1,583 Google reviews
- Hours
- Mon–Fri 7:30 AM–4 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 1429 Ulmer Ave b, Oreland, PA 19075
Based in Cranford, 35 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 412 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 412 Google reviews
- Hours
- Mon–Fri 6 AM–11 PM · Sat 6 AM–9 PM · Sun 6 AM–6 PM
- Address
- 29 Alden St Suite LL1B, Cranford, NJ 07016
Based in Atco, 11 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 43 Google reviews
- Hours
- Mon–Sun 6 AM–6 PM
Based in Atco, 8 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in East Brunswick, 27 mi away
58/100CR ScoreRanked #8 because of its Google rating and review volume: 4.8★ from 1,961 Google reviews, the most in Hamilton Square.
- 4.8★ from 1,961 Google reviews
- Hours
- Mon–Tue 8 AM–6 PM · Wed–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 359 NJ-35 South, Cliffwood, NJ 07721
Based in Philadelphia, 25 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 371 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 371 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun closed
- Address
- 431 Rhawn St, Philadelphia, PA 19111
Based in Dover, 11 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 29 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
Based in Mercerville, 2 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 59 Google reviews, listed on Google as “Concrete contractor”.
- 4.8★ from 59 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 100 Horizon Center Blvd Suite 233, Hamilton Township, NJ 08691
Based in Collegeville, 39 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 150 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 150 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3774 Kratz Rd, Collegeville, PA 19426
Based in Staten Island, 38 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 136 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 136 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 304 Gower St building b, Staten Island, NY 10314
Based in Cinnaminson, 11 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Foundation”.
- 5.0★ from 18 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
Based in Berkeley Heights, 35 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 320 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 320 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun closed
- Address
- 26 North Ave, Garwood, NJ 07027
Based in Lindenwold, 36 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 50 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12 Digby Dr, Blackwood, NJ 08012
Based in Bridgewater, 26 mi away
56/100CR ScoreRanked #17 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
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1831 Mountain Top Rd, Bridgewater, NJ 08807
Based in Freehold, 19 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 68 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat closed · Sun 9 AM–5 PM
- Address
- 263 Throckmorton St, Freehold, NJ 07728
Based in Staten Island, 39 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 46 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 484 Liberty Ave, Staten Island, NY 10305
Based in Radnor, 39 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 46 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 201 King of Prussia Rd Suite 650, Radnor, PA 19087
Based in Willow Grove, 26 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.7★ from 19 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 19 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1939 Lukens Ave, Willow Grove, PA 19090
Based in Bernardsville, 36 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Philadelphia, 32 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 61 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 325 Chestnut St Suite 876 #121, Philadelphia, PA 19106
Based in Cinnaminson, 24 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 27 Google reviews
- Hours
- Mon–Sun 8 AM–8:30 PM
Based in Bedminster, 21 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 54 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 66 Wildbriar Ct, New Hope, PA 18938
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 267 ranked foundation repair companies here; the rest are on their profiles.
Also serving Hamilton Square
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 One | 1.0★ (1) | 11 mi |
| Basement Waterproofing Specialists | 5.0★ (2) | 29 mi |
| BSK CONTRACTING | 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) | 27 mi |
| Keystone Waterproofing & Restoration Services | 5.0★ (1) | 11 mi |
| LaFerla Brothers Masonry & Hardscaping | 5.0★ (2) | 39 mi |
| Laszlo Masonry & Restoration | 5.0★ (2) | 29 mi |
| Marc Rossi Waterproofing | 5.0★ (2) | 39 mi |
| Nu-Look Home Improvement | 3.0★ (2) | 32 mi |
| Perfect Dry Basement | 5.0★ (2) | 20 mi |
| Riviera Home Builders | 5.0★ (2) | 21 mi |
| The Basic Companies - Basements, Bathrooms, Kitchens, Waterproofing | 4.5★ (2) | 13 mi |
| US Construction and Waterproofing LLC | 3.0★ (2) | 29 mi |
How much do foundation repair companies cost in Hamilton Square?
National price ranges in USD, not adjusted for 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 |
How we ranked Hamilton Square foundation repair companies
We scored 267 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 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 |
Foundation repair companies in Hamilton Square: frequently asked questions
Who is the best foundation repair company in Hamilton Square?
By CR Score, the highest-ranked foundation repair company in Hamilton Square, NJ is ABSOLUTE Waterproofing & Renovations with a CR Score of 62/100. It has 5.0★ from 99 Google reviews. It is open 24/7. Groundworks (#2) and Groundworks (#3) follow. We ranked 267 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Hamilton Square?
ContractorsRanked ranks 267 foundation repair companies serving Hamilton Square, NJ. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Hamilton Square are open 24/7?
63 ranked foundation repair companies in Hamilton Square post 24/7 hours. The highest-ranked are ABSOLUTE Waterproofing & Renovations (#1), Seal The Deal Waterproofing (#7) and Jeffries Basement Waterproofing (#11). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Hamilton Square work on weekends?
188 of 267 ranked foundation repair companies post Saturday hours and 116 post Sunday hours. The highest-ranked open Saturdays are ABSOLUTE Waterproofing & Renovations (#1), Groundworks (#2) and Groundworks (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Hamilton Square?
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 Hamilton Square. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Hamilton Square foundation repair companies have?
The median Google rating among 267 rated foundation repair companies in Hamilton Square is 4.9★, with a median of 22 reviews. Quality 1st Basement Systems has the most, 1,961 reviews, and ranks #8. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Hamilton Square count in this ranking?
Yes, if they are within 40 mi of the Hamilton Square 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 Hamilton Square
- October 2026: CR Scores recalculated for 267 foundation repair companies serving Hamilton Square.
- October 2026: 1 duplicate listing merged.
More foundation repair companies and Hamilton Square pages
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