Cathedral Stone Products began restoring masonry the "right way" over 30 years ago when company founder, Dennis Rude, discovered Jahn Restoration Mortars in Europe.

Developed in Holland, these mortars were engineered to match the physical properties of the substrate. This ensures that whichever mortar is used, it will behave the same as the masonry being restored.

In 1982, Rude brought Jahn Restoration Mortars to the US and founded Cathedral Stone Products. 

Since then, the company has used its scientific approach to masonry restoration to develop a full spectrum of completely integrated and compatible masonry restoration systems that include:

• Grouts & Mortar
• Cleaning & Stripping
• Coatings & Repellents
• Specialty Restoration Tools

Today, thousands of top-tier architects, engineers, preservation specialists and historic building owners trust Cathedral Stone to repair, restore, and preserve significant historic structures all over the world.

Today, Cathedral Stone is the sole owner of Jahn Restoration Mortars worldwide.