About

Since 1963, SEMCO has pioneered products and services that improve indoor environments. Today, we are a worldwide innovator of desiccant-based products and systems able to recover energy, increase ventilation, and control humidity. We are also among the world's largest fabricators of energy-efficient spiral pipe and fittings, acoustical enclosures, and sound attenuators, all manufactured in America.
You need solutions and support: we provide both. Customers worldwide have come to rely upon SEMCO for proven technologies and service.

SEMCO's Pledge:
- Innovative technologies
- A willingness to listen and understand before offering solutions
- Application engineering
- Flexibility in making our schedules fit client schedules
- A lifelong commitment to our client's service and support