Services/Basement Finishing & Remodeling/Waterproofing Assessment & Solutions
Waterproofing Assessment & Solutions
Long Island & NYC
Dry Basements Start Here

Waterproofing Assessment & Solutions

No basement renovation should begin without a thorough waterproofing assessment. Long Island's high water table and heavy rainfall make basement moisture control critical — even in homes that seem dry. TrueCraft inspects every inch before a single wall is framed, ensuring your renovation is built on a dry, stable foundation that lasts.

Free Assessment Included
Battery Backup Available
Warranty on Work
Licensed & Insured

What Makes TrueCraft's Waterproofing Assessment & Solutions Different

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Full Moisture Assessment

We assess foundation walls, floor slab, window wells, grading, and drainage patterns before any work begins.

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Interior French Drain

A perimeter drain installed at the footer level, routing water to a sump pump — the most effective solution for high water table areas.

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Sump Pump Installation

Battery backup sump pumps ensure your basement stays dry even during power outages — critical during Long Island storms.

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Exterior Waterproof Membrane

Applied to the exterior of foundation walls, this membrane is the most comprehensive waterproofing solution for serious moisture issues.

Waterproofing Assessment & Solutions — Pricing Guide

Typical investment ranges for waterproofing assessment & solutions on Long Island & NYC. Actual costs vary based on scope and materials.

Interior Drain & Sump
$5,000 – $15,000

Perimeter drain system with sump pump and battery backup

Wall Crack Injection
$500 – $3,000 per crack

Epoxy or polyurethane injection for specific cracks

Exterior Waterproofing
$15,000 – $40,000+

Full exterior excavation, membrane, and drainage

Prices are estimates. Contact TrueCraft for a free, detailed quote for your specific project.

Why Choose TrueCraft for Waterproofing Assessment & Solutions

Licensed & Fully Insured

TrueCraft Construction Group is fully licensed and insured in New York State. Every project is backed by our quality guarantee.

7+ Years of Experience

Over 500 projects completed across Long Island and NYC. We bring deep expertise and meticulous attention to detail to every job.

On Time, On Budget

We provide detailed written quotes and timelines before any work begins. No surprises, no hidden costs — just transparent, honest pricing.

Frequently Asked Questions

Should I waterproof before finishing my basement?

Absolutely — this is non-negotiable. Any moisture issues must be fully resolved before framing and insulation begin.

What causes basement moisture on Long Island?

High water table, clay-heavy soil that holds water, inadequate grading, and aging foundation walls are the primary causes on Long Island.

Does waterproofing come with a warranty?

Yes — our waterproofing systems come with warranties on both materials and workmanship. Terms vary by scope.

Can I waterproof from the inside?

Yes — interior French drains and sump systems are very effective and minimally invasive compared to exterior waterproofing.

Serving Long Island & NYC

Waterproofing Assessment & Solutions Across Long Island

TrueCraft provides professional waterproofing assessment & solutions services throughout Nassau County, Suffolk County, and all five boroughs of New York City.

Nassau CountySuffolk CountyBrooklynQueensThe BronxStaten IslandManhattan

Part of our Basement Finishing & Remodeling service

Ready to Start Your Project?

Contact TrueCraft Construction Group today for a free consultation and written estimate.