Interlock takes great pride in our design and construction services for retaining wall systems. Interlock is familar with all types of retaining walls such as modular block, rough cut, large block, cast in place and many other types of application.

Maintainence and inspections of water quality / detention facilities is the core of our business and it’s a process we take seriously. We work on small, large, and complex systems. Our team of experts provides solutions intended to avoid costly regulatory fines. Our loyal customers come to us from a diverse array of industries. Their applications and products are numerous, which include sheet metal, complex assemblies, music equipment, fuel tanks, fixtures, and much more. TSM offers the most cost-effective, high-quality engineering and design services around. With our consulting, designing, prototyping, and other expert services, we consistently save customers time and money. We also offer a host of additional services, all under the initiative of environmentally-friendly, superior-quality work.