-
631.581.0600
ACM Basement Waterproofing
121 Freeman Ave. Islip, NY 11751

(631) 581-0600
We are open 7am-11pm, 7 days a week
Call now for a free estimate:
The Owner, Mark McAlpin
Read through our testimonials and you'll see the same half a dozen words over and
over: "knowledgeable," "honest," "professional," "timely," clean/neat,"
"responsive/accommodating."

When you look at our testimonials, you'll also see the name "Mark." This is because the
owner of ACM, Mark McAlpin, is personally involved in nearly every job. In most cases,
Mark will be the one who conducts the inspection, writes up the recommendation, and
provides you with the estimate.

When you call ACM, a representative will set up an appointment for you. The person
conducting the inspection will examine your basement, ask questions about the leak,
and give you a free, honest, on-the-spot recommendation about your problem and how
to fix it. If he decides that a simple, do-it-yourself method will not be sufficient, he'll
also provide you with an estimate for the work.
  • No Mess - No dust, no muddy footprints, no mess. We'll cover the floors with tarps, we'll cover
    your furniture with plastic. As one satisfied customer, Richard Palmieri said, "You left my basement
    cleaner than it originally was."

  • Customer Satisfaction - We've got tons of references you can call and testimonials you can read
    from satisfied customers all over Long Island. We've also got an A rating on Angie's List, an A
    rating with the BBB, and we've never had a complaint with consumer affairs in either Nassau or
    Suffolk.

  • NAWSRC - There are only eight NAWSRC Certified Waterproofing Specialists in all of New York
    State; three of these specialists work for ACM Basement Waterproofing. They are the experts in
    their field.

  • Backed By Research - Unlike other companies who depend on a steady flow of brand-new,
    "patented products" our systems are not something we made up in order to make a quick sale.
    They are designed by industry experts and backed by decades of research.

  • Customized Solutions - We don't believe in "one-size-fits-all" systems. This is why we employ a
    variety of solutions and often combine them in order to ensure that your basement stays dry no
    matter what.

  • No Deposit Required - You pay nothing until the work is completed to your satisfaction.
Mark McAlpin
It is because of Mark's extensive experience in basement waterproofing that ACM is what it is today: the
most knowledgeable, qualified, honest group of waterproofing specialists on Long Island. We have three
Certified Waterproofing Specialists on staff when most companies don't have any. We've won numerous
awards for innovation and customer satisfaction. We've never even had a complaint with consumer affairs.
Ever.
Mark McAlpin,
Owner
Why should you choose ACM?
No other waterproofing company on Long Island can compete with us when it comes to credentials and
customer satisfaction. Consider these points: