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The Jamsill Guard® is a sill pan flashing for exterior doors and windows designed to prevent water damage from window and door leaks. Injection molded of high impact polymers that will not deteriorate over time, the product has been time tested for over 22 years with nearly 1,000,000 sold and not one reported leak.

Inexpensive and easy to install, the Jamsill Guard’s simple design is much more user friendly than comparable products on the market today. Jamsill Guard’s three-piece telescoping design allows the installer on-site adjustability to fit all rough openings and is bonded together in the field with P.V.C. cement.

The Jamsill Guard® flashing system is available in 8 different depths to accommodate most door and window applications in either 2x4 or 2x6 construction and is not visible after installation.

bullet 1 1/8" depth - primarily for aluminum and vinyl windows.
bullet 2 3/8" depth - primarily for vinyl windows.
bullet 3 1/4" depth - primarily for vinyl patio doors.
bullet 3 5/8" depth - primarily for aluminum patio doors.
bullet 4 1/8" depth - for doors & windows.
bullet 4 9/16" depth - for doors & windows.
bullet 6 9/16" depth - for doors & windows.
bullet 6 13/16" depth - for doors & windows.

Jamsill Guard® sill pans incorporate features we feel make it the premier sill pan product line in the world. Features include:

bullet Patent pending weep areas that direct ambient moisture away from areas that could be damaged by it
bullet Durable weather resistant materials; impervious to rust, corrosion, galvanic corrosion electrolysis, and corrosive coastal areas
bullet Easy installation with our three piece design.

Compare the price of our Jamsill Guard® products to the cost of a new floor, carpet, or wall or window, and you will see it only makes sense to use Jamsill Guard®.

Download the Jamsill Catalog


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3 locations in North Carolina to serve you:

Scaffolding Industry Association   Greensboro
4611 West Market St.
(336) 292-6737
6600 Windmill Way
(910) 392-0057
4594-B Long Beach Rd.
(910) 457-0632