HMC
Mechanical contracting, HVAC, plumbing, and building automation, built and maintained end to end. HMC operates as part of Optimum Energy.
Mechanical systems, start to finish
HMC delivers mechanical systems solutions to commercial, industrial, and municipal customers. The team designs, builds, services, and maintains HVAC, plumbing, and building automation systems.
HMC continues to serve its customers directly. Everything about its services, projects, and team lives on the HMC website.
Four generations of family ownership
The Hussung family has led the business since its founding, and the third and fourth generations run it today.
David Clark Hussung
Chief Executive Officer
William Hussung & Cole Hussung
Carrying forward a commitment to integrity, quality, and customer satisfaction.
Two practices, one team
HMC handles both sides of the work: design and construction, plus ongoing service and maintenance.
Design & Construction
Mechanical contracting for new construction, expansion, and retrofit projects.
- Mechanical Contracting
- Design/Build
- Budgeting & Value Engineering
- Fabrication
- Process Piping
- Turnkey Solutions
Service & Maintenance
Ongoing care for commercial HVAC, plumbing, and controls, including emergency response.
- HVAC Service
- Plumbing Service
- Building Automation & Temperature Control
- Preventative Maintenance
- Refrigeration
Where they work
Facilities where mechanical uptime is not optional.
Industrial & Manufacturing
Process piping, plant systems, production uptime.
Commercial Office
HVAC, plumbing, and controls for occupied buildings.
Higher Education
Campus mechanical systems and central plants.
Data Centers
Cooling and mechanical systems built for continuous uptime.
Entertainment & Hospitality
Comfort systems for high-traffic venues.
Healthcare
Critical environments with strict tolerances.
A safety culture that travels to every site
HMC maintains a formal safety program across construction and service work. Details on training, standards, and third-party qualification are on the HMC site.
Join the team
HMC hires technicians, tradespeople, and project staff. Open roles and applications are handled on the HMC site.
Reach them directly
Service and construction lines are answered directly by the HMC team.
The full HMC site is one click away
Services, project experience, leadership, safety, and careers all live on the HMC site.