The first product in the line is the Masonry Maintenance Kit, and it's designed around a simple principle: most masonry maintenance decisions are decisions about which product to use, and you should not make that decision without testing.

A heads-up that prices on most of our products are going up 5% on June 1, 2026.

Terra cotta has defined the character of American architecture for more than a century—but restoring and maintaining Terra Cotta takes specialized expertise.

Join Craig Schnellbacher, Senior Technical Specialist at Cathedral Stone Products, for an in-depth session built specifically for architects and engineers working with this iconic material.

Introducing Bio-Cleaner in a new 16 oz spray bottle—perfect for frequent, at-the-ready use.

We’ve updated all CSP Technical Data Sheets!

I lost a true friend on December 19th. Frank Matero meant so much to so many…