Next Generation Systems

Sustainable Solutions for building maintenance & repair


Next Generation Systems offers engineered products for architectural repair together with innovative services to fully service your projects.

With over 30 years experience in wood repair, historic window surveys, cost estimates, and project management NextGenSys will be there from start to finish.

Contractor Training

Contractor training in wood and wood window repair

Contractor training in wood and wood window repair

Next Generation Systems is proud to be the only repair system on the market to offer contractor training. Individuals who have completed our 4 hour course are authorized to offer a 10 year performance guarantee as a quality partner with NGS.

In addition to the 4 hour course, NGS also offers a 30 minute Lunch & Learn Program designed to help crews more effectively identify and solve wood repair issues in the field. 

Next Generation Systems offers on-site contractor training in all aspects of wood and wood window repair:

  • Surface Preparation
  • Safe lead paint practices
  • Epoxy repairs
  • Weather-stripping
  • On-site logistics

John Stahl has assisted contractors and building owners with many notable landmark buildings:

  • Stanford University Main Quad window restoration
  • Charles Krug Winery, Napa California
  • South Street Seaport, New York City
  • Brown University, Providence, RI
  • Conservatory of Flowers, San Francisco , CA
  • Navy Supply Corps School, Athens, GA
  • US Naval Academy, Annapolis,MD
  • Fisher Building, Chicago, IL


"The time John Stahl spent with our crew was invaluable, answering the many questions our crew had about technique and uses of the product. And since our crew have their hands and minds in the field, having them learn about the product prevents misuse, increases productivity, and prevents costly field mistakes. Not only do I recommend the Dura-Fix system, but having John spend time with our crew is time well spent." 

                                                                                             Rob Cagnetta                                                                                                                                  President                                                                                                                                         Heritage Restoration, Inc.


Contact John Stahl to schedule training for your crews:


Name *

888-370-5420           7 Marian Ct. Altamont, NY