in 1982 John Stahl started a building restoration company and began restoring historic properties in and around New York City. John was an approved contractor with the New York City Landmark Conservancy specializing in wood window restoration and repair.

Beginning in 1995, John began a long association with This Old House Television Show appearing on several episodes demonstrating wood repair, window restoration, and paint preparation techniques. Recently, John has presented on business topics for painting contractors at the National PDCA convention and has published articles in various trade publications.
John has also consulted on window and wood repair for Stanford University, Princeton University, the Baltimore Basilica.