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B Altmans Waterproofing

Waterproofing Company in New York, New York.

B Altmans Waterproofing is a waterproofing contractor based in New York, NY. Its Better Business Bureau member (as stated by the company) is reported by the company and not yet verified, so check it with Better Business Bureau before work starts.

4.8on Google · 139 reviews34 years in business
  • TenBestFind Reviewed
  • Top 10 Winner
  • iWhat do these badges mean?
    TenBestFind Reviewed
    Our editorial team has researched and reviewed this business.
    Verified Business
    Key business information or ownership has been verified against a primary source.
    Top 10 Winner
    The company currently appears in at least one active TenBestFind Top 10 ranking.
    Featured Partner
    A paid commercial relationship with TenBestFind. It never earns or influences a ranking position. This company holds no such relationship.

    Advertising & Sponsorship Disclosure

Quick Overview

iHow this is made

This summary is generated from the verified data on this profile: services, service area, credentials, warranty terms and the company's Google review record. It is reviewed by an editor before publishing and refreshed whenever the underlying data changes. Nothing here is asserted that is not stated elsewhere on this page.

Editorial Standards

B Altmans Waterproofing is a family owned Staten Island company that says it has been sealing basements since 1992. Its signature method is a liquid epoxy injected through the full thickness of a cracked foundation wall, which it presents as an alternative to surface patches, urethane foam and trench drains. For older, porous walls it applies a cementitious epoxy coating it calls HydroSteel EpoxyFlex. Work is covered by what the site describes as a lifetime transferable guarantee, and in-home consultations are free. The shop is on Gower Street in Manor Heights, and the site names neighborhoods from St. George to Tottenville. Google shows 4.8 from 139 reviews, read October 21, 2026. The company also operates in Nashville, Tennessee, which is worth knowing when you ask who will staff your job.

  • Best for cracked poured concrete basement walls on staten island
  • Injects liquid epoxy through the full thickness of cracked foundation walls instead of patching the surface
  • The company also operates in Nashville, Tennessee, so confirm which crew will work on your Staten Island job

Company Facts

B Altmans Waterproofing at a Glance

By the numbers

Google rating
4.8out of 5
Customer reviews
139on Google
In business
34years

Rating and review count pulled from Google on October 28, 2026. Years counted from 1992.

The work

Best for
Cracked poured concrete basement walls on Staten Island
Primary service
Waterproofing

Where

Headquarters
New York, NY
Service area
New York
Emergency service
Not advertised

Money and guarantees

Free estimates
Yes
Financing
Not advertised
Workmanship warranty
Lifetime transferable guarantee on services, as stated on the company website

Credentials

Better Business Bureau member (as stated by the company)
Better Business Bureau member (as stated by the company) (reported by the company, not verified)

Editorial Review

Our Take on B Altmans Waterproofing

B Altmans Waterproofing stands out for a single, clearly argued method and a guarantee that reviewers say was honored when a first repair fell short. The marketing is heavy on SEO-style text and the company also works in Nashville, so ask exactly who will be at your door. A good fit for cracked poured walls, a weaker one if you expect drains and pumps.

Best forCracked poured concrete basement walls on Staten Island

What We Like

  • Injects liquid epoxy through the full thickness of cracked foundation walls instead of patching the surface
  • Family owned on Staten Island since 1992, per the company website
  • Lifetime transferable guarantee on services, and reviewers say it was honored after a first repair fell short
  • Applies its HydroSteel EpoxyFlex cementitious coating to older, porous non-solid walls
  • 4.8 from 139 Google reviews, with Barry and Marco named for clear explanations and punctual work

Things to Consider

  • The company also operates in Nashville, Tennessee, so confirm which crew will work on your Staten Island job
  • It argues against interior drains and trench systems, so ask how it would handle a failed sump pump or heavy groundwater pressure
  • The website names no licence number and no owner role, so check the DCWP Home Improvement Contractor lookup yourself

Customer Ratings

Google Reviews for B Altmans Waterproofing

Customer ratings shown here come from Google. They are separate from our editorial review above.

Google rating

4.8

Based on 139 Google reviews

Review data updated October 28, 2026

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Rating Distribution

  • 5 stars94%
  • 4 stars1%
  • 1 star5%
iAbout this distribution

The distribution reflects the 139 Google reviews available when this profile's review data was last refreshed on October 28, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.

Editorial Standards

Recent Google Reviews

  • Judith Capolongo5.0

    B Altmans Basement Waterproofing did a thorough and professional job that permanently eliminated any outside water seepage issues, moisture problems and water damage in my basement and adjoining garage. I highly recommend them.

    July 2026Google
  • E Masoud5.0

    I highly highly recommend Barry Altman’s Waterproofing. I had three failed sump pumps, a foundation leak, and several other concerns that needed to be addressed. Barry was extremely knowledgeable and clearly an expert in his field. Although I never met Barry in person, the professionalism, skill, and dedication of his team speak volumes about him and the company he runs. I had doubts about whether the project would be successful, but Barry continued to reassure me and confidently stood behind his work. That level of confidence can only come from someone who truly knows what he is doing. Barry and his team went above and beyond the original scope of the project to make sure everything was completed properly, and he did not charge me for the additional work. That says a great deal about his character, his company, and the warranty they stand behind. I am extremely happy with the completed project. If I could give Barry Altman’s Waterproofing 10 stars, I would. Im looking forward in meeting Barry in person. Thank you, Barry, and thank you to your entire team!

    July 2026Google
  • Gennadiy Borodanski5.0

    B Altmans Waterproofing did an absolutely fantastic job fixing several large cracks in our concrete foundation! Although this review is long overdue- the job was completed exactly one year ago - the timing only adds more praise to the quality of their work. The repairs look and function exactly the same today as they did the day they were finished. Before B Altmans Waterproofing stepped in, we had constant influx of groundwater into our basement. Thanks to their permanent fix, we have not dealt with these issues since. I highly recommend B Almans Waterproofing for foundation crack repairs!

    June 2026Google
  • Matthew Rucker5.0

    Had issues with my basement for a while. Barry promised he had the solution. While I had doubts that the basement could be fixed without a french drain Barry reassured his way was by far superior to the drain. After having him do work I still had issues but he guaranteed his work and stuck by his word. My basement has been totally dry since the repair. With all that snow melt and rain, I’m certain if I had an issue it would have shown itself in these past couple weeks, but his fix has held true. Highly recommend based on knowledge, response time, follow through and method. Barry nailed it.

    March 2026Google
  • James Balestrino5.0

    Where to start? From initially talking to Barry, to having Steve come by for an estimate to Marcos epoxy work and attention to detail, these guys do it right. Knowledgeable, professional and efficient. Great communication throughout the process and get the job done. For me, the honesty, transparency and accessibility that’s provided by Barry and team is without comparison. Highly recommended and thank you Barry!

    January 2026Google
  • Srinivas Palati5.0

    We used him few times for water proofing our home. He is trustworthy professional and we are happy with his workmanship.

    November 2025Google

View more Google reviews

Ranked#3of 4 waterproofing companies in New York, NYre-checked October 2026

Editorial Ranking

Why B Altmans Waterproofing Made Our Top 4

It holds position 3 in 4 Best Waterproofing Companies in New York, NY (2026).

See the Full New York RankingPositions cannot be bought

Areas Served

Based in New York, NY.

iAbout service coverage

Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.

Editorial Standards

Company Background

About B Altmans Waterproofing

B Altmans Waterproofing builds its whole pitch on one method: a liquid epoxy injected through the full thickness of a foundation wall, which the company says follows the engineering approach used by the Port Authority and the Army Corps of Engineers on bridges and tunnels. It works from 304 Gower Street in the Manor Heights area of Staten Island and says it has been family owned since 1992.

The website draws a hard line against the usual alternatives. It rejects surface patches, urethane foam and trench drains, and says it picks either crack injection or a full wall coating, never both without need. For older, porous, non-solid walls it uses a cementitious epoxy coating it calls HydroSteel EpoxyFlex. It also offers mold remediation and a liquid rubber coating for flat roofs. Work carries what the site describes as a lifetime transferable guarantee, and free in-home consultations are offered. Spanish is spoken. The company lists membership in the BBB and the Staten Island Chamber of Commerce, though it gives no member numbers.

Staten Island neighborhoods named on the site include St. George, Tottenville, Great Kills, New Springville, Port Richmond, Stapleton, West Brighton, New Dorp, Huguenot, Mariners Harbor, Westerleigh and Annadale.

B Altmans Waterproofing holds 4.8 from 139 Google reviews, read October 21, 2026. Reviewers praise Barry for explaining the process by phone, even while on vacation, and Marco for arriving on time and finishing a job in a few days. One homeowner says Barry did extra work without charging for it. Another, Matthew, still had trouble after the first repair, but says the company honored its guarantee and the basement has stayed dry since.

Two things deserve a careful look. The company also runs a Nashville, Tennessee operation, so ask who will actually be on your job. And because it steers away from interior drains, ask how it would handle a failed sump pump or heavy groundwater pressure.

It suits homeowners with cracked poured concrete walls who want a fix without demolition and a transferable guarantee. It suits less well anyone set on a conventional French drain and sump system. Before booking, ask for the guarantee in writing and ask who will do the injection. Check the contractor on the New York City Department of Consumer and Worker Protection Home Improvement Contractor lookup at nyc.gov. New York State has no waterproofing-specific licence, and the site does not state a licence number.

iWhere this information comes from

Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.

Editorial Standards

Credentials

  • Better Business Bureau member (as stated by the company)Better Business BureauReported
  • Staten Island Chamber of Commerce member (as stated by the company)Staten Island Chamber of CommerceReported
iWhat verified means here

Verified means we checked the credential against the authority that issues it and recorded the date. Reported means the business told us and we could not independently confirm it. We publish both, labelled, rather than dropping what we could not check.

Editorial Standards

Other Sources

Reputation by Source

We show each source separately rather than blending them into a single score, because they measure different things.

  • Google

    4.8/ 5

    139 customer reviews

  • TenBestFind

    Editorially reviewed

    Ranked #3 in New York waterproofing, October 2026

Pricing

Company Pricing & Estimates

What this company publishes about its own pricing.

Free estimates
Yes
Workmanship warranty
Lifetime transferable guarantee on services, as stated on the company website

Gallery

Project Photos

Business-submitted, reviewed by our editors

  • B Altmans WaterproofingB Altmans Waterproofing
  • B Altmans WaterproofingB Altmans Waterproofing
  • B Altmans WaterproofingB Altmans Waterproofing
  • B Altmans WaterproofingB Altmans Waterproofing
  • B Altmans WaterproofingB Altmans Waterproofing
  • B Altmans WaterproofingB Altmans Waterproofing

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B Altmans Waterproofing FAQs

  • Is B Altmans Waterproofing licensed in New York City?

    The company's website states no licence number, so check it yourself. New York City requires a Home Improvement Contractor licence from the Department of Consumer and Worker Protection for residential work, and you can look a contractor up on nyc.gov. New York State has no waterproofing-specific licence. The site says it belongs to the BBB and the Staten Island Chamber of Commerce, but gives no member numbers.

  • What are B Altmans Waterproofing's hours, and do they do emergency calls?

    Google lists the business as open 24 hours every day, while the company's own contact page gives Monday to Saturday, 8:00 am to 8:00 pm, and closed Sunday. The site advertises same-day appointment booking and says all calls are returned within 24 hours. It does not describe a formal emergency service, so call (917) 681-3146 and ask what is available when water is actively coming in.

  • What warranty does B Altmans Waterproofing offer, and where does it work?

    The company advertises a lifetime transferable guarantee on its services, so ask for the exact wording in writing before you sign. Free in-home consultations are offered, and payment is by cash or check according to the site. It is based on Staten Island and names St. George, Tottenville, Great Kills, New Springville, Port Richmond, Stapleton, West Brighton, New Dorp, Huguenot, Mariners Harbor, Westerleigh and Annadale as service areas. The site does not mention financing.

  • Is B Altmans Waterproofing licensed and insured?

    We checked 0 of 2 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.

  • What areas does B Altmans Waterproofing serve?

    New York. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.

  • Does B Altmans Waterproofing offer emergency service?

    Emergency availability is not listed for this company. If you need an urgent call-out, check the ranking for companies that do list it.

  • What warranty do they offer?

    Lifetime transferable guarantee on services, as stated on the company website. There are usually two warranties on a job: the manufacturer covers materials, the contractor covers workmanship. Get both in writing and check whether the workmanship coverage transfers if you sell.

  • How was this profile built?

    Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.

  • Can a business pay to improve its profile?

    A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.

Is Something Incorrect?

Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.

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How We Rank

About This Business Profile

Last reviewed
October 2026
Profile last updated
November 11, 2026
Google review data updated
October 28, 2026
Sources checked
Issuing authorities, Google Business Profile, Company website
Could not verify
Better Business Bureau member (as stated by the company) (reported only), insurance
Sponsorship status
No commercial relationship
B Altmans Waterproofing4.8 on Google · New York, NYVisit Website