BUILT BY FAMILY

What started as a one-man operation has grown into a trusted family business serving homeowners throughout Jefferson County and the greater St. Louis area.

Founded by Roy Sims, Sims Window & Door Pros was built on a simple belief: provide quality workmanship, treat customers with honesty and respect, and always stand behind your work. Over the years, that commitment earned the trust of homeowners and helped the business continue to grow.

Today, Roy works alongside his sons, Zach and Jordan, combining years of experience, craftsmanship, and a shared dedication to serving their community. Together, they've built a team that takes pride in helping homeowners improve their homes with quality windows, doors, and expert installation.

As a locally owned and family-operated company, we understand that your home is one of your biggest investments. That's why we approach every project with the same care and attention to detail we'd give our own homes.

Whether you're replacing a single window or transforming your home's exterior, our goal remains the same: provide exceptional products, reliable service, and an experience you can feel confident about from start to finish.