G&J Waterproofing

$4.8M revenue • 829 California Ave, Avalon, PA, 15202, United States

Last Updated Jun 2, 2026

Company Overview

Company Name

G&J Waterproofing

Address

829 California Ave, Avalon, PA, 15202, United States

Approx. Annual Revenue

$4.8M

Established

2015

Google Reviews

4.5 (247 reviews)

About G&J Waterproofing

G&J Waterproofing is a company based in Avalon, Pennsylvania, United States that offers a range of foundation and basement waterproofing services in the Pittsburgh area. The company provides services such as interior and exterior waterproofing, foundation repair, and moisture barrier installation, among others.

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Frequently Asked Questions about G&J Waterproofing

Technologies Used

Social Profiles

Key Decision Makers

Harry Wynkoop Owner
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