Full-Service Commercial HVAC Solutions in Wisconsin
From engineering and design to installation and maintenance, we provide end-to-end HVAC solutions for commercial properties.
- On-Call 24/7
- Commercial Units
- Prefabrication
What we do
At Third Coast Mechanical, we specialize in commercial HVAC systems, advanced automation controls, and industrial sheet metal fabrication. Whether you’re looking to optimize efficiency, upgrade your system, or ensure round-the-clock reliability, we have the expertise to deliver.

HVAC for Businesses
Your building’s HVAC system is critical to daily operations in Wisconsin. We provide end-to-end commercial HVAC services, from installation and maintenance to repairs and system upgrades, ensuring peak efficiency and comfort.
HVAC Capabilities:
- System Design & Installation
- Equipment Upgrades
- Roof Top Units (RTUs)
- Air Quality Solutions
- Troubleshooting & Repairs
- Preventative Maintenance
- UV Light Installation
- Heat Pump Replacement


Smart HVAC Automation & Controls
As buildings become smarter, commercial HVAC automation is essential for optimizing efficiency, comfort, and energy management.
Control Capabilities:
- Building Automation Systems (BAS)
- Energy Management Systems (EMS)
- Variable Air Volume (VAV) Systems
- IoT-Integrated HVAC Solutions
- Wireless & Remote HVAC Controls


Sheet Metal & Ductwork Fabrication
Efficient HVAC performance starts with precision-engineered ductwork. Our industrial sheet metal fabrication services provide custom solutions tailored to your building’s airflow needs.
Sheet Metal Capabilities:
- Ductwork Fabrication
- Prefabricated Systems
- Industrial Ventilation System
- Sheet Metal Dampers & Air Control
- Duct Sealing & Insulation
- Duct Cleaning


24/7 Emergency HVAC Services
When your HVAC system fails in Wisconsin, you need immediate, expert service to restore comfort and prevent operational disruptions. That’s why we offer 24/7 emergency commercial HVAC repairs, ensuring your business stays up and running.
Emergency Services Include:
- Immediate Diagnostics & Troubleshooting
- Urgent System Repair
- On-call 24/7
- Priority Replacement


Why Choose Third Coast Mechanical for your HVAC needs?
With deep industry expertise and a customer-first approach, Third Coast Mechanical delivers custom HVAC solutions for commercial buildings, hospitals, universities, industrial facilities, and manufacturing plants.