WHO WE ARE

Founded in 1990 as Allied Surface Preparation, we began as a highly skilled crew focused on technical concrete prep for other contractors. As our capabilities grew, we evolved—rebranding in 1998 and expanding into the complex restoration work that now defines us. Today, Allied Waterproofing is a family-owned contractor with the sophistication of a modern restoration firm, specializing in the challenging projects others can’t or won’t take on. Guided by the next generation of leadership, we blend deep craftsmanship with advanced construction expertise to protect and extend the life of structures throughout the Midwest.

Our clients say

Hear directly from those who count on us to solve their toughest challenges.

“Working with Allied Waterproofing was a genuinely positive experience from start to finish. Their team delivered high-quality work, communicated clearly throughout the process, and made the project easy to manage on our end. We were especially appreciative of how smoothly Allied coordinated with our consultants, including BTL Architects. It’s refreshing to work with a contractor who is both technically strong and easy to do business with. We look forward to working with Allied again in the future.”