Activate Your Warranty

Thanks for choosing SillMate — the original windowsill extender trusted by plant lovers and space savers alike.

We stand behind our products and offer a 1-Year Warranty on all purchases. To activate your warranty and access priority support, please fill out the form below.

What’s Covered:

- Manufacturing defects

- Installation issues (when used as directed)

 What You’ll Need:

Just your name, email and comment "warranty"— we’ll have your warranty on file in case anything comes up down the road.