Duffy Hoffman is one the most inclusive window and historic painting and paint removal restorationists in the USA. We travel all over the USA consulting historic projects and most of all sash restoration. Duffy is one of the best master sash restorationists in the USA. He combines the old trades and modern techniques and materials to provide the best restoration possible with the idea of maintenance as a number one factor in long lasting and economical longevity restoration.

Duffy is highly regarded throughout the historical trade community for developing ground breaking restoration techniques that anyone can learn.  He is widely sought after for both the quality of his work and his ability to teach others his tried and true methods.  Duffy's hands on approach is greatly respected and valued by his many satisfied customers, students and peers.
 
Duffy's 
Sash Restoration
Learn master craftsman techniques and the tips of the trade within the historic preservation world from the expert, Duffy himself! 
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Duffy's 
How To DVD's
See why Duffy’s work precedes his reputation in the historical trades. You can watch and learn from Duffy with his how to DVD's.
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Duffy's 
Classes
Want to learn how to be a professional like Duffy?  If so, please visit our classes page and see what class best fits what you want to learn.
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