As one of the Bay Area's prominent Mechanical Contractors, we design, install and service heating, ventilating and air-conditioning systems for today's commercial and industrial marketplaces.

We take pride in our ability to implement practical solutions to complex HVAC problems, while providing a wide array of additional services to our customers.




Our team of Professional Engineers is experienced in HVAC Systems Design, Controls Design, Energy Auditing, Construction Administration, Wetside domestic/hydronic Systems Design, and CEC Title 24 Calculations.



Our teams of in-house Sheet Metal Fabricators and on-site Construction Crew allow us to provide solutions on a fast track design-build basis, or perform modifications on your existing plans and specs. 


Service + Repair

Our Service Technicians have full depth of knowledge of the many types of HVAC systems and building controls systems. We utilize the very latest in diagnostic service procedures and provide state-of-the-art tools and test equipment.

Building Automation + Controls

Our controls and service team's full depth of knowledge of HVAC systems help our customers automate building functions and integrate technology systems for easier management, improved comfort, and upgraded energy/money saving strategies.

I have had the opportunity to work with AMi for many years and they have always worked hard to exceed my expectations.  Customer service is their primary focus and it shows.
— BRIAN HODGES, Mechanic's Bank

The AMi team is knowledgeable, punctual, honest, and have exceptional customer service. Be it construction, service, or maintenance, I go to AMi for all of my HVAC needs.
— JACOB WARREN,  Ex'pression College

We have been a client of AMi for more than 15 years. They are very responsive to our service requests. Their service technicians are professional and thorough. At the completion of each call, the technician reviews the worked performed, the equipment status, answers our questions and makes recommendations for consideration.
— MIKE HOGAN, Jenkins Properties

Sigmatex is participating in the PG&E QM-180 program. In 7 months we have seen a 7% cost savings.  I would highly recommend other companies to participate in this program. AMi’s service technicians same day response & support, ensures we continue to run efficiently.
— KATHY POLARD, Sigmatex