“The Jamsill Guard® has a fast, easy, 2-Step installation process to make homeowners look like pros and save contractors time!  ~Jimmy & Buff

PREVENT Costly Damage

Jamsill Guard® works to provide barrier to protect door and window sills from water damage, dry rot and mold!

At YOUR Favorite Hardware Store

Jamsill Guard® sill can be found at many local Lumber and Building Supply outlets all across the USA and is also available online at Lowes.com. You can also give us a call or fill out our contact form for personalized help locating our products near you.

Fast, Easy 2-STEP Installation

Jamsill Guard® use three piece permanently seamed together to form a water-tight sill pan to protect your home or project!

What is the Jamsill Guard® and why should YOU use it?

Jamsill Guard® is an adjustable sill pan flashing designed to prevent water damage from window and door leaks. Made from quality, high impact ABS plastics, Jamsill Guard® will not deteriorate or corrode over time. Jamsill Guard’s simple design is inexpensive, easy to install, and more “user friendly” than comparable products on the market. Our multi-piece telescoping design allows on-site adjustablility to fit all rough openings and features sloped weep areas to help evacuate moisture to the exterior of the structure. Jamsill Guard® is bonded together in the field using PVC cement, creating a one-piece sill pan flashing beneath your door or window.

Installed by Homeowners  with Benefits

The durability of our sill-pan provides long-term protection.

Installed by Builders & Contractors

Builders enjoy ease of sill-pan installation and durability.

Used by Architects

With more and more building codes and installation guidelines requiring the use of sill pans