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Get an education in proper masonry restoration from the experts.

Training at our facility in Hanover, MarylandSharpen your skills and earn AIA/CEU credits at a JAHN-Certification Workshop or Masonry Restoration Presentation.

Held in our Hanover, MD headquarters and at various regional locations across the country, our JAHN Certification Masonry Restoration Workshops help attendees work toward mastering traditional methods of masonry repair using JAHN Masonry Restoration Mortar Systems.

These intensive courses, led by expert stonemasons, cover the repair of most types of masonry. Our workshops are hands on and introduce techniques that will allow masons to take their skills to the next level by giving them step-by-step instructions on how to achieve long lasting results and the best possible finished product. Successful completion of the JAHN Certification Workshop is necessary to purchase JAHN Masonry Restoration Mortar Systems which include M70, M100, M120, and M160. Workshop classes are filled on a first come, first served basis.

We also conduct shorter 1 to 4-hour Masonry Restoration System Presentations that cover topics such as mortars, repairing, and pointing as well as our Coating, Cleaning, Stripping, and Water Repellent Systems. You can take these courses and tour our lab at our corporate headquarters or have them presented at your offices or at an association meeting.

Our informative hands-on workshops are designed for masons, contractors, craftsmen, specifiers, and other preservation professionals. Architects can receive AIA/CEU Learning Units and HSW Credits, upon request.

To plan your visit for a workshop or meeting, click here.

Cathedral Stone Products will be holding a Jahn Certification Course in Chicago December 8th through the 9th and February 9th through the 10th. To register please click on the following link, or for more details contact Randy Sabo at or 312-833-5519.

Register for a JAHN-Certification Masonry Restoration Workshop today.

Month Program Dates Location Learning Units HSW Credits Status  
February #2/23-24/2017 02/23-02/24/2017 Bronx, NY On Schedule Class Full
February #2/28-3/1 02/28-03/01/2017 Pittsburgh, PA 14 On Schedule Online
By Mail
March #17002 03/13-03/15/2017 Hanover, MD On Schedule Online
By Mail
March #March 21-22, 2017 03/21-03/22/2017 Bronx, NY On Schedule Online
By Mail
April #17003 04/24-04/26/2017 Hanover, MD On Schedule Online
By Mail
June #17004 06/12-06/14/2017 Hanover, MD On Schedule Online
By Mail
July #17005 07/17-07/19/2017 Hanover, MD On Schedule Online
By Mail
October #17006 10/16-10/18/2017 Hanover, MD On Schedule Online
By Mail
November #17007 11/13-11/15/2017 Hanover, MD On Schedule Online
By Mail
Regional training class tuition varies by location. Classes are filled on a first come, first served basis. Please note that if you do not send payment for the class, your spot will not be held.

Please review our:
Training Class Cancellation Workshop Visitor Guide

Cathedral Stone Products, Inc.
The leader in scientific masonry restoration