91/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 130 Google reviews, open 24/7.
- 5.0★ from 130 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 65 Woodbine St, Bergenfield, NJ 07621
Best Foundation Repair Companies in Harlem, NY (2026)
564 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Harlem: Bonded Waterproofing Solutions, CR Score 91/100; 5.0★ from 130 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): ARD Waterproofing, posts 24/7 hours; ranked #2 of 564.
- 14
Most-reviewed: Groundworks, 586 Google reviews at 4.9★, the most of 564 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
564 Harlem foundation repair companies are ranked here by CR Score, from 8 published factors. 154 are open 24/7, 462 open Saturdays and 345 open Sundays, based on posted hours. The median Google rating is 5.0★ across 564 rated businesses.
Top 10 foundation repair companies in Harlem at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Bonded Waterproofing Solutions | 91 | 5.0★ (130) | Bergenfield, 8 mi away | 24/7 | Overall |
| 2 | ARD Waterproofing | 90 | 5.0★ (146) | Caldwell, 17 mi away | 24/7 | Emergencies |
| 3 | StrongBuild Masonry & Construction, Chimney repair, Foundation Waterproofing | 89 | 5.0★ (72) | Jersey City, 10 mi away | 24/7 | — |
| 4 | HRC Waterproofing | 89 | 4.9★ (77) | Jamaica, 12 mi away | 24/7 | — |
| 5 | Pure Service Pro | 89 | 4.9★ (250) | East Hanover, 25 mi away | 24/7 | — |
| 6 | B Altmans Waterproofing | 88 | 4.8★ (136) | Staten Island, 17 mi away | 24/7 | — |
| 7 | West Essex Waterproofing | 88 | 4.9★ (36) | Caldwell, 6 mi away | 24/7 | — |
| 8 | Core Basement Waterproofing Bergen County | 88 | 4.8★ (42) | Carlstadt, 6 mi away | 24/7 | — |
| 9 | Blue Umbrella Waterproofing | 88 | 5.0★ (412) | Cranford, 22 mi away | Sat · Sun · Evenings | — |
| 10 | United Waterproofing | 87 | 5.0★ (156) | Dover, 32 mi away | 24/7 | — |
The 564 best foundation repair companies in Harlem, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Caldwell, 17 mi away
90/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 146 Google reviews, open 24/7.
- 5.0★ from 146 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 98 Smull Ave, West Caldwell, NJ 07006
Based in Jersey City, 10 mi away
89/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 72 Google reviews, open 24/7.
- 5.0★ from 72 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 438 West Side Ave, Jersey City, NJ 07304
Based in Jamaica, 12 mi away
89/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 77 Google reviews, open 24/7.
- 4.9★ from 77 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 116-14 142nd St, Jamaica, NY 11436
Based in East Hanover, 25 mi away
89/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 250 Google reviews, open 24/7.
- 4.9★ from 250 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2001 US-46 Suite 310, Parsippany-Troy Hills, NJ 07054
Based in Staten Island, 17 mi away
88/100CR ScoreRanked #6 because of its Google rating and availability: 4.8★ from 136 Google reviews, open 24/7.
- 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 Caldwell, 6 mi away
88/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 36 Google reviews, open 24/7.
- 4.9★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Carlstadt, 6 mi away
88/100CR ScoreRanked #8 because of its Google rating and availability: 4.8★ from 42 Google reviews, open 24/7.
- 4.8★ from 42 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 400 Commerce Blvd, Carlstadt, NJ 07072
Based in Cranford, 22 mi away
88/100CR ScoreRanked #9 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 Dover, 32 mi away
87/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 156 Google reviews, open 24/7.
- 5.0★ from 156 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15 Mt Pleasant Ave, Dover, NJ 07801
Based in Staten Island, 17 mi away
87/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 46 Google reviews, open 24/7.
- 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 Rockaway, 30 mi away
87/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 129 Google reviews, open 24/7.
- 4.9★ from 129 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 45 Pine St, Rockaway, NJ 07866
Based in Clifton, 10 mi away
86/100CR ScoreRanked #13 because of its Google rating and availability: 4.6★ from 37 Google reviews, open 24/7.
- 4.6★ from 37 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8 Oak St, Clifton, NJ 07014
#14 Groundworks
Based in South Plainfield, 30 mi away
86/100CR ScoreRanked #14 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 Briarcliff Manor, 21 mi away
85/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 26 Google reviews, open 24/7.
- 5.0★ from 26 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 115 Wall St, Valhalla, NY 10595
Based in Carteret, 8 mi away
85/100CR ScoreRanked #16 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.
- 5.0★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Astoria, 3 mi away
85/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 32 Google reviews, open 24/7.
- 5.0★ from 32 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 40-18 Berrian Blvd, Astoria, NY 11105
Based in Rye, 19 mi away
85/100CR ScoreRanked #18 because of its Google rating and availability: 4.6★ from 29 Google reviews, open 24/7.
- 4.6★ from 29 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 222 Purchase St Suite 231, Rye, NY 10580
#19 Smart Roofers NY
Based in Brooklyn, 9 mi away
85/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 162 Google reviews, open 24/7.
- 5.0★ from 162 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 874 Hancock St, Brooklyn, NY 11233
Based in Rego Park, 7 mi away
85/100CR ScoreRanked #20 because of its Google rating and availability: 4.9★ from 51 Google reviews, open 24/7.
- 4.9★ from 51 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 95-22 63rd Rd #116, Rego Park, NY 11374
Based in New Rochelle, 5 mi away
85/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 24 Google reviews
- Hours
- Mon–Tue 8 AM–10 PM · Wed 8 AM–9 PM · Thu–Fri 8 AM–10 PM · Sat–Sun 8:30 AM–10 PM
- Address
- 2058 Cruger Ave, Bronx, NY 10462
Based in Bayside, 7 mi away
84/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 24/7.
- 5.0★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Manhattan, 6 mi away
84/100CR ScoreRanked #23 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 345 Hudson St, New York, NY 10014
Based in Garden City Park, 16 mi away
84/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 115 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 115 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 7 AM–6 PM · Sun 9 AM–5 PM
- Address
- 168 Broadway, Garden City Park, NY 11040
Based in Carteret, 15 mi away
84/100CR ScoreRanked #25 because of its Google rating and availability: 4.2★ from 25 Google reviews, open 24/7.
- 4.2★ from 25 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
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 564 ranked foundation repair companies here; the rest are on their profiles.
Also serving Harlem
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 |
|---|---|---|
| Adam's European Contracting Inc. | In Harlem | |
| Apple City Construction | 5.0★ (2) | 8 mi |
| Crown Waterproofing | 4.5★ (2) | 9 mi |
| Gotham Unlimited LLC | 1.0★ (1) | In Harlem |
| I.K Construction | 5.0★ (2) | 6 mi |
| INFRARED ROOF INSPECTORS | 5.0★ (2) | 10 mi |
| Liberty Masonry & Waterproofing | 1.0★ (2) | 10 mi |
| Maestro Builders Corporation | 5.0★ (2) | 5 mi |
| Maximo Enterprises Inc | 5.0★ (7) | In Harlem |
| Mayrich Construction | 5.0★ (5) | In Harlem |
| Neptune Construction NY Inc | 5.0★ (2) | 4 mi |
| New Life Mason & Waterproofing | 4.5★ (2) | 1 mi |
| NYC DOB Local Law 11 Facade Repairs Contractors | 5.0★ (2) | 9 mi |
| Power Roofing & Siding Bushwick Brooklyn | 5.0★ (2) | 8 mi |
| Power Roofing & Siding Williamsburg | 5.0★ (2) | 6 mi |
| Power Roofing & Waterproofing Manhattan | In Harlem | |
| Segundo ch Construction | 5.0★ (1) | In Harlem |
| Shoot Installers INC. | 5.0★ (2) | 9 mi |
| Sullivan Waterproofing and Restoration | 5.0★ (2) | 7 mi |
| The Foundation & Basement Expert | 5.0★ (2) | 4 mi |
How much do foundation repair companies cost in Harlem?
National price ranges in USD, not adjusted for Harlem. 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 Harlem foundation repair companies
We scored 564 Harlem foundation repair companies on 8 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. Unknown factors are left out of the score, 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 Harlem data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Foundation repair companies in Harlem: frequently asked questions
Who is the best foundation repair company in Harlem?
By CR Score, the highest-ranked foundation repair company in Harlem, NY is Bonded Waterproofing Solutions with a CR Score of 91/100. It has 5.0★ from 130 Google reviews. It is open 24/7. ARD Waterproofing (#2) and StrongBuild Masonry & Construction, Chimney repair, Foundation Waterproofing (#3) follow. We ranked 564 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in Harlem?
ContractorsRanked ranks 564 foundation repair companies serving Harlem, NY. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Harlem are open 24/7?
154 ranked foundation repair companies in Harlem post 24/7 hours. The highest-ranked are Bonded Waterproofing Solutions (#1), ARD Waterproofing (#2) and StrongBuild Masonry & Construction, Chimney repair, Foundation Waterproofing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Harlem work on weekends?
462 of 564 ranked foundation repair companies post Saturday hours and 345 post Sunday hours. The highest-ranked open Saturdays are Bonded Waterproofing Solutions (#1), ARD Waterproofing (#2) and StrongBuild Masonry & Construction, Chimney repair, Foundation Waterproofing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Harlem?
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 Harlem. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Harlem foundation repair companies have?
The median Google rating among 564 rated foundation repair companies in Harlem is 5.0★, with a median of 18 reviews. Groundworks has the most, 586 reviews, and ranks #14. 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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Harlem count in this ranking?
Yes, if they are within 40 mi of the Harlem 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 Harlem
- October 2026: CR Scores recalculated for 564 foundation repair companies serving Harlem.
More foundation repair companies and Harlem pages
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