We provide a full line of services to meet your waterproofing needs.
Our companies have significant knowledge and experience in the design, function, application, installation and performance of waterproofing, caulking, and moisture protection.

Building Envelope Restoration

Buildings require restoration and remedial services for a number of reasons. Age, environmental factors, poor construction or design can all be reasons that a building (or a parking garage) would require remedial services. We have the expertise to provide a full range of restoration services regardless if your building is relatively new or a historic structure. These services include sealant removal and replacement, brick replacement and pointing, wet glazing, cleaning, sealing, remedial waterproofing, removal and replacement of expansion joint assemblies, wet glazing, flashing repair, deck coatings, façade stabilization and many other remedial services and investigations. When on a restoration project, we work closely with the design team and building owners to restore the building back to its intended purpose.



It is great to work with a company that approaches every aspect of a project with the level of professionalism and pride that GDA does. Their involvement in industry organizations and their training programs demonstrate their commitment to excellence.

Rick Johnson, South Central Regional Manager, BASF

W. R. Grace

It is rare to find an applicator that cares as much as GDA and their group of companies.  They have taken waterproofing to the next level.

Jill Heidorf, Architectural Sales Rep, W. R. Grace

United States Cold Storage

The George D Alan Company has done an excellent job...I would definitely recommend this company to anyone with floor issues.

Chad Saltzman, Chief Engineer, United States Cold Storage, Inc.

Silicone Specialties

Every aspect of working with employees from GDA is a step above their competition.

Duane Barnett, President/ CEO, Silicone Specialties