American Combustion Industries, Inc.

American Combustion Industries (ACI) is a trusted leader in mechanical contracting and facility support services across Maryland, Washington, DC, and Virginia. For decades, we’ve partnered with industrial, commercial, and institutional clients to keep their critical systems operating at peak performance.

Our capabilities span the full spectrum of building services, including:

- HVAC and mechanical systems
- Plumbing and piping solutions
- Industrial vacuum services
- Electrical systems and co-generation plants
- Facility assessments, maintenance, and repair

Backed by union-trained expertise and the resources of the Exigent platform, ACI delivers responsive, cost-effective, and high-quality solutions for complex facilities. Our experienced teams combine technical excellence with a customer-first approach, ensuring that every project—whether a facility upgrade, emergency repair, or preventative program—meets the highest standards of safety, efficiency, and reliability.

ACI is proud to be part of Exigent, bringing integrated mechanical solutions to mission-critical environments across the Mid-Atlantic.