Serving St. Charles, MO and surrounding areas and communities. St. Charles St. Peters Cottleville O'Fallon Lake St. Louis Wentzville Chesterfield Weldon Spring Dardenne Prairie Don’t see your town listed? Give us a call and we’ll see what we can do! Menu Home About Request A Quote Contact Blog Contact Phone: (636) 290 - 9464 Email: Josh@FirmFoundationsSTL.com Business Hours M - F: 9am - 5pm Sat: By Appointment Only Sun: Closed Service Areas St. Charles, MO O'Fallon, MO Wentzville, MO Lake St. Louis, MO St. Peters, MO