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    Unified Masonry & Waterproofing

    1.0 (3 reviews)
    Open • 8:00 am - 8:00 pm

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    Services - Unified Masonry & Waterproofing

    Moisture control installation

    Moisture control repair

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    1 month ago

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    2 months ago

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    1 year ago

    Business owner information

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    William M.

    We updated are number so you need to go on are website. And call us

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    (9 reviews)

    Castleton Corners

    I noticed some dark spots on the Sheetrock in the corner of my finished basement. I wasn't sure…read morewhat was causing the moldy looking wall. I realized that water was puddling at the bottom of the basement wall when it rained. The water was also hidden under the concrete. Even when the keyway looked nearly dry, I could feel water, mud and wet rocks under the concrete floor. Days went by and panic began to set in; I wasn't sure who could fix something like this. It would be a huge job to rip up the driveway and fix the water problem from the outside. I needed someone to fix the wall leak and the hole under the slab. It had to be done from the inside. Luckily, I found B. Altman's Waterproofing. I figured I would call and leave a message (it was already late but I wanted to put a call in and get the ball rolling) Surprisingly, the owner answered. He had me send photos of the basement wall, floor etc. Barry analyzed the situation quickly. He realized the wall had a long crack as well. He answered all my questions and described why and how leaks like this occur. He assured me that the problem was very fixable. Two days later, Barry's technician, Marcos arrived promptly at 9am. He spent the entire day fixing the problem. He cleaned out the crack in the wall and added epoxy injections all along the damaged areas. Then he filled in the cracked keyway. Marcos was a true professional, his work was clean and he kept my house neat; even making sure to use a drop cloth everywhere he worked. The job was finished in one day! About a week later Staten Island had what was called the wettest December ever. Floods were everywhere in the tristate area. It was about 2 days worth of nonstops rainfall! Two of my neighbors told me that they had to use a shop vac to dry up the rain that had entered their basements, but my basement was actually dry for once! Thank you B. Altman's for locking the water out of my house!

    Doesn't do the job himself nor does his other partner in pictures, sends Mexicans who know nothing,…read moreare sloppy, ruins the look of the outside foundation by plastering a small crack with a spatula leaving a swath of 12 inches of epoxy stuff ruining any design the plaster had. Usually a tube gun is used. They bunched up heavy furniture into a corner of the room and never put them back when finished. They barely spoke or understood english. No one who spoke English supervised the work. They did not air out the place after the job (and they could have) to mitigate the horrible nasty lingering smell of the sealant--in fact they didn't even warn about the smell beforehand nor leave instructions on how to deal with it AND after all was said and done the wall still leaked.. And Barry is a nasty son of a gun to deal with if you complain. Don't use him despite what the others said.

    Unified Masonry & Waterproofing - waterproofing - Updated September 2026

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