Stop by our main office if you would like to speak with us regarding stone, asphalt,
and recycled concrete aggregates. Our business hours vary by location!
Simpson Materials Company
1053 Headquarters Park Dr
Fenton, MO 63026
Monday - Friday: 7:00 AM - 5:00 PM
Family-run and operated.
Call us now:
SITE Improvement Association
MO Asphalt Pavement Association
MO Limestone Producers Association