Basement Waterproofing Services In valley stream

Basement Waterproofing Experts

Say bye-bye to your flooded basement in Valley Stream

Leaky ceiling, cracks in the wall, flooding in the corners – we get it, and we’re here to help. At Diamond, wet basements are our enemy too. We’re proudly family-owned – providing high-quality waterproofing to basements all over Nassau County. Don’t let the basement ruin your home, we have your back – always.

That’s why we specialize in both interior and exterior basement waterproofing solutions that eliminate unwanted water before it becomes a major issue.

We Make It Look Easy By:

  • Giving your home a thorough inspection to find the exact source of moisture
  • Providing you with a tailored solution that may include drainage systems, sump pumps, or exterior membranes followed by a walkthrough and continued support
valley stream basement waterproofing

Diamond’s Promise

You Can Count On Us

  • A Dry Home: Expert waterproofing that prevents leaks and shields your home from water damage in Valley Stream.
  • Strong Foundation: Proactive protection that stops water from causing cracks, shifting, or expensive structural issues.
  • Higher Property Value: A dry, well-maintained basement makes your home more appealing to future buyers.
  • Healthy Space: Controlling moisture reduces the risk of mold, mildew, and poor indoor air quality.
  • Lasting Builds: Our solutions are backed by strong warranties and built for long-term protection.
  • Custom Waterproofing Plans: Every home is unique and so is our plan to protect yours.
professional basement waterproofing valley stream

Why Choose Us

Contact Us for a Free Estimate!

Take the first step toward a dry, secure home. Contact us now for expert waterproofing and masonry solutions tailored to your needs.

Get Free Estimate (516) 307-2507
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How We Make It Happen

When it comes to basement waterproofing and flood prevention in Valley Stream, we use proven methods to protect your home from any and all water. With strategies in both interior and exterior basement waterproofing, we charge at water sources to keep your basement dry all year long.

The result? A dry, healthy, and structurally sound basement you’ll feel good about.

French Drain Installation

French drains guide water away from your foundation to keep your basement dry and protected. They’re essential in preventing long-term flooding.

Sump Pump System

Our sump pump systems activate as soon as the water starts to build, removing it before it can do damage. They’re a must-have for Valley Stream homes during heavy rain.

Basement Crack Repairs in Valley Stream

We practice early crack spotting and repair them as soon as possible to prevent leaks and mold.

Grated Channel Drainings

These grated channel drains attract water, throwing it off its trail to your home. They’re perfect for areas with frequent rainfall, preventing pooling and leakage.

Exterior Membrane Foundation

An exterior membrane gives your home an added barrier against water intrusion. For wet seasons, it’s a reliable, long-lasting solution.

Foundation Grading

Foundation grading makes sure rainwater flows away from your home, reducing the risk of flooding around your basement.

Window Well Drainage

Window wells are built around windows to prevent pooling. They protect your basement by keeping rainwater away from your windows.

Diamond-Approved Reviews

Basement Waterproofing in Valley Stream, NY

Looking for flood prevention services near me?

Don’t let the rain ruin your basement – contact Diamond Waterproofing and Masonry today.

We’ve found a solution to every wet basement we’ve faced including homes across North Valley Stream, South Valley Stream, Westwood, Mill Brook, and Gibson.

Still not convinced? Check out our 5-star reviews from happy homeowners just like you.