Two brothers wearing company polo shirts outside who are second-generation owners of American Custom Contractors. A roofing, siding, windows, gutters, and doors contractor in Maryland. This photo is used on our website testimonials page, about us page, and contact us page.

The DMV Area’s Favorite Expert Home Improvement Contractor - Discover more about Us

Unparalleled - Our Story

I’m proud to share a little bit about who we are and where we come from. American Custom Contractors was started back in 1972 by our parents, Alex and Angie Giakoumatos. At the time, they were living in Gaithersburg, Montgomery County, raising a small family and chasing the dream of building something meaningful. What began as a modest carpentry business slowly grew into a full-service remodeling company, fueled by their hard work, commitment to quality, and genuine care for the people they served.

Alongside the business, our family also grew. Our parents raised four children, and all of us have, in one way or another, stayed connected to this community that gave us so much. In 1997, my brother Demetri and I, officially joined the family business. Stepping into the company felt natural—it was less about taking over and more about carrying forward a legacy that was already deeply rooted in service and craftsmanship. With fresh energy and a shared vision, we worked to expand our reach and offerings, and it was during this time that our Commercial Services division was born.

As the company continued to grow, so did the need for a central hub where we could manage projects more efficiently and connect with customers more easily. In 2005, we moved into our current location at 15728 Crabbs Branch Way in Rockville. This move wasn’t just about convenience—it was about positioning ourselves where we could best serve our clients, respond quickly to estimates, and stay connected to the neighborhoods we’ve always valued.

Community has always been at the heart of American Custom Contractors. It’s more than where we work—it’s where we live, raise our families, and build relationships that last for decades. That’s why we’re proud members of the Rockville Chamber of Commerce and why we encourage you to come get to know us and discover more about us. When you choose to work with us, you’re not just hiring a contractor; you’re partnering with a family that’s been committed to craftsmanship and community for over 50 years.

-William Giakoumatos, President

Our Mission

When my parents, Alex and Angie, first started American Custom Contractors, they built the business on a foundation of honesty, integrity, and a simple promise—to get the job done right the first time. Those values weren’t just words to them; they were the guiding principles behind every project, big or small.

Now, more than 50 years later, I’m proud to say we still live by that same mission. Our work has expanded far beyond its early beginnings, and today we serve homeowners, businesses, and insurance restoration projects across Maryland, Virginia, West Virginia, Pennsylvania, and Washington, DC. Even as the industry has evolved, our commitment to craftsmanship and integrity has never wavered.

For us, success isn’t measured in numbers alone—it’s measured in the satisfaction of our clients and the trust they place in us when they recommend our team to their friends and family. Every project is an opportunity to carry forward the legacy that my parents started, and we approach each one with the determination to exceed expectations.

We’ve become one of the most trusted names in home improvement in the region because we never lose sight of what matters most: delivering quality work with care, precision, and respect for the people we serve. That’s our mission, and it will always be at the heart of who we are.

-Demetri Giakoumatos, CEO