535 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Uniondale: HRC Waterproofing, CR Score 61/100; 4.9★ from 77 Google reviews; open 24/7.
Best for emergencies (open 24/7): Bonded Waterproofing Solutions, posts 24/7 hours; ranked #3 of 535.
Most-reviewed: Quality 1st Basement Systems, 1,961 Google reviews at 4.8★, the most of 535 ranked; ranked #23.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
535 Uniondale foundation repair companies are ranked here by CR Score, from ten published factors. 143 are open 24/7, 440 open Saturdays and 334 open Sundays, based on posted hours. The median Google rating is 5.0★ across 535 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | HRC Waterproofing | 61 | 4.9★ (77) | Jamaica, 11 mi away | 24/7 | Overall |
| 2 | BOCCIA - Waterproofing & Masonry Specialists | 60 | 4.7★ (115) | Garden City Park, 4 mi away | Sat · Sun · Evenings | — |
| 3 | Bonded Waterproofing Solutions | 60 | 5.0★ (130) | Bergenfield, 26 mi away | 24/7 | Emergencies |
| 4 | Vulcan Basement Waterproofing | 59 | 4.5★ (23) | Hicksville, 6 mi away | 24/7 | — |
| 5 | StrongBuild Masonry & Construction, Chimney repair, Foundation Waterproofing | 59 | 5.0★ (72) | Jersey City, 26 mi away | 24/7 | — |
| 6 | A.M. Shield Waterproofing Corp. | 59 | 5.0★ (215) | Albertson, 6 mi away | — | — |
| 7 | B Altmans Waterproofing | 59 | 4.8★ (136) | Staten Island, 29 mi away | 24/7 | — |
| 8 | Blue Umbrella Waterproofing | 59 | 5.0★ (412) | Cranford, 37 mi away | Sat · Sun · Evenings | — |
| 9 | JJM Roofing & Waterproofing | 59 | 4.9★ (93) | Westbury, 4 mi away | 24/7 | — |
| 10 | ARD Waterproofing | 59 | 5.0★ (146) | Caldwell, 37 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 because of its Google rating and trade focus: 4.9★ from 77 Google reviews, listed on Google as “Waterproofing service”.
Based in Garden City Park, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 115 Google reviews, listed on Google as “Waterproofing service”.
Based in Bergenfield, 26 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Waterproofing service”.
Based in Hicksville, 6 mi away
Ranked #4 because of its Google rating and trade focus: 4.5★ from 23 Google reviews, listed on Google as “Waterproofing service”.
Based in Jersey City, 26 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Waterproofing service”.
Based in Albertson, 6 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 215 Google reviews, listed on Google as “Waterproofing service”.
Based in Staten Island, 29 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 Cranford, 37 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 412 Google reviews, listed on Google as “Waterproofing service”.
Based in Westbury, 4 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 93 Google reviews, listed on Google as “Roofing contractor”.
Based in Caldwell, 37 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 146 Google reviews, listed on Google as “Waterproofing service”.
Based in Staten Island, 27 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, 24 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 Jamaica, 9 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 30 Google reviews, listed on Google as “Waterproofing service”.
Based in Melville, 12 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Waterproofing service”.
Based in West Hills, 25 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 74 Google reviews, listed on Google as “Waterproofing service”.
Based in Carlstadt, 26 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 42 Google reviews, listed on Google as “Waterproofing service”.
Based in Bayside, 13 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Waterproofing service”.
Based in Massapequa, 8 mi away
Ranked #18 because of its Google rating and review volume: 5.0★ from 479 Google reviews.
Based in Rye, 21 mi away
Ranked #19 because of its Google rating and trade focus: 4.6★ from 29 Google reviews, listed on Google as “Waterproofing service”.
Based in Carteret, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Foundation”.
Based in Briarcliff Manor, 29 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Waterproofing service”.
Based in New Rochelle, 18 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Waterproofing service”.
Based in East Brunswick, 38 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 1,961 Google reviews, the most in Uniondale.
Based in Fresh Meadows, 12 mi away
Ranked #24 because of its Google rating and trade focus: 3.7★ from 58 Google reviews, listed on Google as “Waterproofing service”.
Based in Merrick, 2 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Concrete contractor”.
#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 535 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 |
|---|---|---|
| Ajrin Construction Inc. | 5.0★ (2) | 15 mi |
| Aslam Roofing and Waterproofing. | 5.0★ (2) | 8 mi |
| CarpetCow | 4.1★ (21) | In Uniondale |
| Crown Waterproofing | 4.5★ (2) | 19 mi |
| Diamond NY Construction | 3.0★ (2) | 13 mi |
| Grant’s Customs Carpentry LLC | 5.0★ (2) | 19 mi |
| I.K Construction | 5.0★ (2) | 18 mi |
| Innovate Builders Inc | 3.0★ (2) | 6 mi |
| Liberty Masonry & Waterproofing | 1.0★ (2) | 17 mi |
| Maestro Builders Corporation | 5.0★ (2) | 17 mi |
| New York Enviro-Foam | 5.0★ (2) | 18 mi |
| Power Roofing & Siding Bushwick Brooklyn | 5.0★ (2) | 17 mi |
| Power Roofing & Siding Williamsburg | 5.0★ (2) | 18 mi |
| Rahat Construction Corp | 3.0★ (2) | 19 mi |
| Rohan's General Construction LLC | 5.0★ (2) | 18 mi |
| Shoot Installers INC. | 5.0★ (2) | 15 mi |
| Sullivan Waterproofing and Restoration | 5.0★ (2) | 19 mi |
| Torres Line Construction | 5.0★ (2) | 5 mi |
| Tur Contracting Inc. | 3.0★ (2) | 15 mi |
| Waterproofing Restoration of Baldwin | 5.0★ (2) | 4 mi |
National price ranges in USD, not adjusted for Uniondale. 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 535 Uniondale 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 Uniondale 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 |