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 Mercerville, NJ (2026)
271 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Mercerville: 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 271.
- 9
Most-reviewed: Quality 1st Basement Systems, 1,961 Google reviews at 4.8★, the most of 271 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
271 Mercerville foundation repair companies are ranked here by CR Score, from ten published factors. 63 are open 24/7, 190 open Saturdays and 119 open Sundays, based on posted hours. The median Google rating is 4.9★ across 271 rated businesses.
Top 10 foundation repair companies in Mercerville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ABSOLUTE Waterproofing & Renovations | 62 | 5.0★ (99) | Bridgewater, 12 mi away | 24/7 | Overall |
| 2 | Groundworks | 61 | 4.8★ (1,286) | Montgomeryville, 29 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, 12 mi away | Sat · Sun | — |
| 7 | Seal The Deal Waterproofing | 58 | 5.0★ (14) | Atco, 10 mi away | 24/7 | Emergencies |
| 8 | Jeffries Basement Waterproofing | 58 | 4.8★ (59) | Mercerville | 24/7 | — |
| 9 | Quality 1st Basement Systems | 58 | 4.8★ (1,961) | East Brunswick, 28 mi away | — | Most reviews |
| 10 | A Waterproofing Solution Inc | 58 | 4.9★ (189) | King of Prussia, 40 mi away | 24/7 | — |
The 271 best foundation repair companies in Mercerville, 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 Montgomeryville, 29 mi away
61/100CR ScoreRanked #2 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, 28 mi away
61/100CR ScoreRanked #3 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
#4 Groundworks
Based in South Plainfield, 26 mi away
60/100CR ScoreRanked #4 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
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, 12 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, 10 mi away
58/100CR 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 Mercerville
58/100CR ScoreRanked #8 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 East Brunswick, 28 mi away
58/100CR ScoreRanked #9 because of its Google rating and review volume: 4.8★ from 1,961 Google reviews, the most in Mercerville.
- 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 King of Prussia, 40 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 189 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 189 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 630 Freedom Business Center Dr #300, King of Prussia, PA 19406
Based in Collegeville, 38 mi away
58/100CR ScoreRanked #11 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
#12 Basement Gurus
Based in Philadelphia, 24 mi away
58/100CR ScoreRanked #12 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, 12 mi away
58/100CR ScoreRanked #13 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 Staten Island, 39 mi away
57/100CR ScoreRanked #14 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, 12 mi away
57/100CR ScoreRanked #15 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 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 Berkeley Heights, 35 mi away
57/100CR ScoreRanked #17 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 Bridgewater, 25 mi away
56/100CR ScoreRanked #18 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 Radnor, 38 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
- 201 King of Prussia Rd Suite 650, Radnor, PA 19087
Based in Willow Grove, 24 mi away
56/100CR ScoreRanked #20 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 Philadelphia, 31 mi away
56/100CR ScoreRanked #21 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 Bernardsville, 35 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 Bedminster, 19 mi away
56/100CR ScoreRanked #23 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
Based in Cinnaminson, 22 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 Staten Island, 40 mi away
56/100CR ScoreRanked #25 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
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 271 ranked foundation repair companies here; the rest are on their profiles.
Also serving Mercerville
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 |
|---|---|---|
| ABS Auto Glass | 4.7★ (110) | In Mercerville |
| Arka Contractors | 5.0★ (56) | In Mercerville |
| B.W.E Custom Construction LLC | 4.9★ (25) | In Mercerville |
| Cabrera Contracting LLC | 5.0★ (5) | In Mercerville |
| DG Construction And Renovations | 4.3★ (6) | In Mercerville |
| Duran Cully Renovations LLC | 5.0★ (20) | In Mercerville |
| Flansburg Construction, LLC | 5.0★ (39) | In Mercerville |
| Flesch's Roofing | 1.0★ (3) | In Mercerville |
| Green Lawn Irrigation | 4.6★ (26) | In Mercerville |
| J K General Custom Building and Remodeling | 5.0★ (1) | In Mercerville |
| Kulis NJPA (Concrete & Roofing Specialist) | 5.0★ (6) | In Mercerville |
| M&C Lawn and Tree Service LLC | 4.9★ (45) | In Mercerville |
| New Outlooks Construction Group Inc | 4.9★ (28) | In Mercerville |
| RHome Plus Construction | 4.9★ (67) | In Mercerville |
| Services LLC | 3.6★ (32) | In Mercerville |
| T-Mobile LLC Brick Township | 4.5★ (4) | In Mercerville |
| Technical Construction LLC | 5.0★ (14) | In Mercerville |
| Treboland Landscaping LLC | 4.8★ (21) | In Mercerville |
| Two Brothers Mason | 5.0★ (5) | In Mercerville |
| Zorbas Painting | 5.0★ (150) | In Mercerville |
How much do foundation repair companies cost in Mercerville?
National price ranges in USD, not adjusted for Mercerville. 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 Mercerville foundation repair companies
We scored 271 Mercerville 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 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 Mercerville: frequently asked questions
Who is the best foundation repair company in Mercerville?
By CR Score, the highest-ranked foundation repair company in Mercerville, 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 Jamison Basement Waterproofing (#3) follow. We ranked 271 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Mercerville?
ContractorsRanked ranks 271 foundation repair companies serving Mercerville, NJ. 3 of them are based in Mercerville; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Mercerville are open 24/7?
63 ranked foundation repair companies in Mercerville post 24/7 hours. The highest-ranked are ABSOLUTE Waterproofing & Renovations (#1), Seal The Deal Waterproofing (#7) and Jeffries Basement Waterproofing (#8). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Mercerville work on weekends?
190 of 271 ranked foundation repair companies post Saturday hours and 119 post Sunday hours. The highest-ranked open Saturdays are ABSOLUTE Waterproofing & Renovations (#1), Groundworks (#2) and Jamison Basement Waterproofing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Mercerville?
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 Mercerville. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Mercerville foundation repair companies have?
The median Google rating among 271 rated foundation repair companies in Mercerville is 4.9★, with a median of 22 reviews. Quality 1st Basement Systems has the most, 1,961 reviews, and ranks #9. 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 Mercerville count in this ranking?
Yes, if they are within 40 mi of the Mercerville 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 Mercerville
- October 2026: CR Scores recalculated for 271 foundation repair companies serving Mercerville.
- October 2026: 1 duplicate listing merged.
More foundation repair companies and Mercerville pages
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