🛡️

Thorocoating

Professional Thoroseal waterproof coating for masonry walls

Get a Thorocoating Estimate → Call Us Today

Why Choose Allstate?

NYC DOB Licensed & Insured

Free Written Estimates

5-Year Workmanship Warranty

Local Law 11 Expertise

Clean Jobsite Guaranteed

About This Service

Professional Thorocoating in NYC

Thorocoating (Thoroseal) is a cementitious waterproofing coating that bonds directly to masonry surfaces to stop water penetration. Allstate Construction applies Thoroseal to basement walls, retaining walls, CMU blocks, and exterior masonry surfaces as both a waterproofing layer and a finished protective coating. It is one of the most trusted waterproofing products for NYC masonry buildings.

The Allstate Difference

We are certified applicators of Thoroseal by BASF and have applied the product to over 150 NYC masonry structures. We follow BASF application guidelines precisely — no cutting corners.

What's Included

Our Thorocoating Services

Thoroseal waterproof coating application
Surface preparation (grinding, cleaning)
Crack repair and patching before coating
Hydraulic cement for active leak stops
Single and double coat systems
Brush, roller and spray application
Tinted Thorocoat for colored finish
Elastomeric top coat over Thoroseal
Interior and exterior application
Foundation wall waterproof coating

Our Process

How We Handle Your Thorocoating Project

Step by step — from first contact to finished job

Surface Preparation

All loose material removed. Surface abraded for proper bonding. Cracks filled with hydraulic cement.

First Coat

Thoroseal mixed to proper consistency and scrubbed into damp surface with stiff brush for maximum penetration.

Second Coat

Second coat applied after first coat is set but still green for a monolithic waterproofing layer.

Curing

Coating kept damp for 72 hours during cure. Fully cured and waterproof within 28 days.

FAQs

Common Questions About Thorocoating

Thoroseal is a cementitious coating that chemically bonds to masonry and bridges hairline cracks. Waterproof paint sits on the surface and peels when hydrostatic pressure builds. Thoroseal is a true waterproofing system.

Not directly. Active leaks must first be stopped with hydraulic cement. Once water entry is stopped, Thoroseal is applied over the repaired area.

Two coats are standard for waterproofing. Areas with higher water pressure may require a third coat or an elastomeric top coat.