Dear Interlock,

We love our new weathered slate Interlock roof. It is beautiful and has really enhanced the look of our 1925 home. Your installers were a pleasure to work with and addressed all of my picky concerns. They did a fabulous job cleaning up the property after they finished installation. The roof has definitely given new life to our old home.

It would be my pleasure to talk with any of your potential customers. You have my permission to give them my phone number.

Thank you for a job well done.