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Professional Moisture Protection Services in Long Island
Local Moisture Protection Experts
Long Island Waterproofing Specialists
APM O'Neill & Sons are local and trusted independent waterproofing specialists servicing Long Island and the surrounding areas. Our highly trained team have over 30 years of experience in waterproofing and moisture protection services.
Whether you are looking for new waterproofing or the repair or replacement of waterproofing systems for any commercial or residential property we can help. As one of the leading waterproofing companies in Long Island, our business is built on satisfying our customers and producing great results. We are a fully licensed and insured company and all our work is guaranteed for your peace of mind.


Waterproofing Your Long Island Property
Water is one of the leading causes of structural damage in Long Island. Rainfall, flooding and high humidity can seep into most interiors, destroying building materials and contributing to other problems like mold growth. Waterproofing is the process of making a property impenetrable by water. Our professional and recommended waterproofing services include:
- Deck coatings
- Expansion control joints
- Expansion joint cover systems
- Structural sealants
- Crystalline waterproofing
- Damp proofing
- Below grade waterproofing
- Water repellents


Expert Waterproofing contractors near me
Why choose APM O'Neill & Sons for waterproofing in Long Island?
Our clients benefit from a skilled workforce with a track record of integrity and professionalism and all our waterproofing and moisture protection services are of high quality and cost effective.
With our commitment to quality and reliability, competitive prices, and our guarantees, we remain the preferred waterproofing company in Long Island.
You can rely on our expertise and professionalism when it comes to quality waterproofing solutions.
- Qualified and experienced staff
- All work guaranteed
- No call out charges
- Competitive local pricing
- Free site surveys
- No obligation quotations
- Fully licensed and registered local company
- Reliable, trusted, and friendly staff
- Installation, maintenance, and repairs
15% Off all Jobs
We offer the unbeatable offers to all our customers. For a limited time only, we are offering 15% off all jobs done. Give us a call on 631 609-6090 or send us an email to info@apmoneill.com for any available slots.
100% Work Guaranteed
All our asphalt, masonry and paving works are long-lasting and fully guaranteed. This is to give you a peace of mind so you can relax knowing your driveway and patios are covered for years to come.
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