Welcome!

Since 1983 Jamsill, Inc. has provided the construction industry with the patented Jamsill Guard® door & window sill pan flashing. With over 2 million sold, we feel we have the best sill pan on the market.

The Jamsill Guard® door & window sill pan flashing is impervious to rust, corrosion, galvanic corrosion, electrolysis, and corrosive coastal areas.

This website is intended to be a tool to help you learn about Jamsill, Inc. and the products we have developed. It features detailed information on the Jamsill Guard® door & window sill pan flashing as well as our retail packaging and trim strips.

If you have any questions regarding Jamsill, Inc., Jamsill Guard® door & window sill pan flashing, or would just like to talk to a live person, please call us at 1-800-JAMSILL (526-7455). Our office is open Monday through Friday from 7am-3pm PST.