Welcome to Wollin Group, Inc.


Mi-Best® Advanced Energy Training

We provide advance training of energy conservation, efficiency, building comfort and most importantly the Earth

  • Advance training on a variety of energy conservation topics for Southern California Gas Company, San Diego Gas & Electric, Pacific Gas & Electric, Sacramento Municipal Utility District (SMUD), as well as various private companies.
  • Curriculum Development Services: These are turn-key, comprehensive presentations on a variety of building science and energy topics. With on-location class set up and hands-on training modules the approach is beneficial and lasting for both the sponsors and attendees.
  • Energy Documentation: Wollin Group Inc provides the calculations and documentation required by building departments for compliance with the California Residential and NonResidential Energy Standards.

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Our Mission


Wollin Group, Inc. 

Mi-Best® Training

Our Goal


Wollin Group, Inc we strive to provide with the Mi-Best® Training the building and HVAC industry with assistance in energy efficient design and installation, sustainable construction options, and building procedures that promote durability and occupant comfort.
As buildings continue to become more performance oriented, the details and materials used in the construction process become increasingly important both in choice and integration.

Mi-Best® Training Testimonials


“Mi-Best from the Wollin Group is a great course. I learned a lot about the process of building the right way and changed my habits accordingly.”

Shane M
Jane D

“Gary Wollin is an awesome teacher…. In just one short week, I learned techniques that I will use over a lifetime to improve my own home and to use this knowledge for my customers. This course is great for anyone. I highly recommend it.”