Waterproofing Contractor Services | J. Liss Waterproofing

Worry Less About Water—Stay Protected

When water gets in, it doesn’t wait. It seeps under doors, creeps through walls, and hides where you least expect it. At J. Liss Waterproofing, we close the gaps before problems start. Think of us as the shield between rain and your foundation.

Your peace of mind comes from more than just strong materials—it’s knowing real, trained professionals stand behind every job. Licensed, fully insured, and background-checked, our crews treat each property with the respect and care it deserves.

Basements, crawl spaces, commercial spaces—each faces different risks. That’s why our guidance is tailored. We explain what you need, and why. No runaround, no scare tactics. Just honest answers so you can make the right call for your space.

Call for support—real experts are here for you. 888-863-4240

Solid Protection Starts With Sound Planning

Waterproofing System Design:Every building is different. We design waterproofing that fits your property, not a cookie-cutter fix. From surface coatings to subsurface drainage, our plans help keep water out for the long haul—while respecting your budget and timeline.
Material Selection & Upgrades:Material matters. Our team matches the right sealants, membranes, and barriers to your exact needs. Upgrades are available, but we never push products. The focus stays on what delivers lasting results for you.
Inspections & Leak Detection:Problems often hide. Our inspection and leak detection services use a sharp eye and proven techniques to spot weaknesses early. Quick reports and straightforward recommendations let you act before small issues turn into emergencies.
Maintenance and Repairs:Waterproofing isn’t one-and-done. We offer maintenance plans, repairs, and system checks to spot trouble before it spreads. Fast response, clear communication, and minimal disruption every step of the way.

Close-up of technician applying waterproof sealant to residential foundation wall

We Treat Every Property Like Our Own

We’re not just waterproofers—we’re neighbors, business owners, and homeowners, too. We know how unsettling it is to see a damp patch or a puddle in the wrong place. Our job is to make sure you never have to worry about it again.

Each project is led by experienced supervisors and executed using only industry-approved methods. Trusted by local families, realtors, and building managers—your safety and long-term property value remain our top priorities.

888-863-4240

Waterproofing Services & Solutions

Basement & Crawl Space Waterproofing:Shield basements and crawl spaces from leaks, standing water, and mold. Our targeted solutions keep below-grade areas dry, safe, and structurally sound all year round.
Exterior & Foundation Waterproofing:Stop water at the source. From membranes to coatings and grading, we fortify your exterior walls and foundations, keeping water from ever reaching vulnerable spots inside.
Commercial Waterproofing Services:Protect your business property from costly water damage with systems tailored to commercial demands. Dependable waterproofing for offices, warehouses, retail, and more.
Waterproofing Repairs & Crack Sealing:Cracks leave you exposed. We locate, clean, and seal gaps with proven techniques that hold up under pressure. Stop drips and seepage before they become structural risks.
Mold Prevention & Moisture Barriers:Install professional vapor barriers and sealants that keep out dampness. Reduce mold risk, improve air quality, and protect valuables from hidden moisture.
Leak Detection & Emergency Services:Water emergencies don’t wait. Our rapid response team finds leaks fast and offers quick containment and repairs—day or night—to limit damage and help you regain control.
French Drains & Drainage Solutions:Redirect water away from your property with properly installed drains and customized grading. Prevent pooling and erosion, ensuring your landscape and structure stay intact.
Sump Pump Installation & Maintenance:Automatic sump systems protect your lowest level from flooding. We install, repair, and service pumps to keep your basement or crawl space dry when storms hit.
Interior Waterproofing & Sealing:Seal interior surfaces and joints to stop water intrusion where you live or work. We use commercial-grade coatings designed for high-traffic, high-risk areas.
Gutter Installation & Gutter Repair:Functional gutters keep water away from basements and foundations. Full-service installation, repairs, and upgrades for seamless water flow and lasting protection.
Grading, Yard & Surface Drainage:Poor drainage leads to standing water, erosion, and leaks. We regrade earth and install surface drains to move water safely away from your property’s vulnerable points.
Waterproofing Inspections:Detailed, on-site assessments by trained professionals spot weaknesses before they escalate. Get a clear report and recommendations tailored to your property’s needs.
Damp Proofing Services:Reduce inside humidity and moisture with wall treatments and surface barriers for basements, crawl spaces, and slab-on-grade buildings. Peace of mind from the ground up.
Maintenance Plans & System Checks:Scheduled inspections and preventative maintenance keep your waterproofing system performing at peak, lowering your risk and catching issues early before they become expensive.
Waterproofing Consultations & Planning:Site-specific advice and planning for new builds, renovations, or upgrades. Know your options and risks before work begins—for smarter spending and better results.