Keep Your Basement Dry
basement Waterproofing Services
Serving in Suffolk County, Nassau County, and Town of Freeport


Say Goodbye to Wet Basements
Don’t let water intrusion ruin your basement. Our basement waterproofing services are designed to keep your basement safe and dry. Whether it’s a small leak or a big flood, we have the experience and know-how to fix it. Schedule your free estimate today!
Proven Solutions
Basement waterproofing with years of experience.
Quality Materials
Workmanship that stand the test of time.
Respectful Service
Professional team that respects your home.
Personalized Plans
Because no two homes are the same.
Transparent Prices
Clear pricing and honest recommendations.
We Have The Experience To Keep Your Basement Dry
Water can do serious damage beneath the surface of your home. When rising groundwater or heavy rain creates pressure around your foundation, cracks, settling, and leaks often follow. You might even notice basement walls beginning to bow or water pooling in corners. These are signs your home needs professional attention. At Diamond Waterproofing & Masonry, our job is to take that stress off your plate. Our basement waterproofing specialists have years of experience and have solved all kinds leaky basement issues. Your satisfaction is our priority, we make sure to solve problems the right way, without unnecessary upsells. Here’s a quick look at our general process:
Take the first step toward a dry, secure home. Contact us now for expert waterproofing and masonry solutions tailored to your needs.
Get a free estimate today! Our basement waterproofing specialists are here to help with reliable, affordable service. With a 5-year warranty and over 500 jobs done, we make sure your foundation is in the best hands.
There’s no one-size-fits-all answer. The best method depends on the source of the issue, whether it’s groundwater, cracks, or poor drainage. We customize every solution to fit your home, using trusted methods like sump pumps, drainage systems, or exterior membranes.
Musty smells, water stains, mold, or peeling paint are common red flags. You might also see wall cracks, puddles, or feel dampness in your basement after it rains, these are all signs it’s time to take action.
Yes, interior waterproofing is often effective and less invasive. We can install interior drainage channels, vapor barriers, or sump pumps to redirect water and keep your basement dry from the inside out.
Absolutely. It protects your home’s structure, prevents mold and costly repairs, all while adding value by making your basement safe and usable. It’s a smart investment in your home’s future.
Leaks are usually caused by groundwater pressure, foundation cracks, or poor exterior drainage. Over time, water finds its way in, especially after heavy rain or snowmelt, so tackling the root cause is key.
The longevity of basement waterproofing depends on the method used, quality of materials, and the condition of the foundation. Interior solutions like sealants and membranes may last 5 to 10 years, while more robust exterior waterproofing systems can last 25 years or more, especially when installed properly with quality drainage.
It depends on the source of the moisture and the structure of your home. Exterior waterproofing stops water before it reaches your foundation walls and is ideal for homes with poor drainage. Interior waterproofing is often used for managing moisture or water that’s already getting inside.. Our team will conduct a detailed inspection to let you know which one is right for you.
Yes, effective basement waterproofing helps prevent mold and mildew by eliminating the damp conditions they thrive in. By keeping water out and managing humidity, waterproofing protects your basement from the type of long-term moisture exposure that leads to poor air quality and potential health risks.
It is possible that basement waterproofing increases your home’s value and marketability. Buyers see a dry basement as a major advantage, it’s a sign that the foundation is in good condition and that the home is being properly maintained.
Preparing your basement for waterproofing depends on the type of service being done. Generally, you’ll want to:
Our professional waterproofing contractors will walk you through exactly what’s needed before work begins.