Smsi Group

From its early roots in mechanical repairs, the company evolved into a full turn‑key solutions partner handling design, installation, controls and maintenance.

Typical projects span ammonia refrigeration systems, boilers, HVACR installations, building automation/PLC, piping, electrical and fabrication.

Operating from four branches across Missouri, Arkansas and Oklahoma, SMSI ensures rapid 24/7 emergency response to minimize downtime.

It serves clients in food manufacturing, industrial plants, commercial properties, retail and institutional facilities.

The company’s steady expansion in licensed states and branch offices underscores a commitment to fast, dependable facilities support.

Clients frequently commend its uptime

focused precision and turnkey project delivery under tight schedules.

Providing the highest quality turn‑key facility solutions & mechanical services performed in an honest, dependable, and efficient manner

Honest, accurate, and transparent billing

Dependable scheduling, quality service

Rapid response to all requests large and small

Family‑owned, prioritizing relationships

Comprehensive service for all facility needs

Continuous expansion to better serve customers with faster response and higher uptime

Precision in performing services according to detailed specifications