By Rex Halbeisen

Transform Your HVAC Business

The complete reference guide and resource to transform your HVAC company to an Energy Technology Systems Integration company

Transform Your HVAC Company into an Energy Technology Systems Integration Company

By Rex Halbeisen

The HVAC industry is at a turning point. Rising energy costs, smart home expectations, and electrification mandates are reshaping what customers need—and what contractors must deliver. In Transform Your HVAC Company into an Energy Technology Systems Integration Company, energy entrepreneur Rex Halbeisen presents a bold roadmap for HVAC professionals ready to lead the next wave of energy innovation.

This is not just another guide to upselling smart thermostats or adding solar to your offering. This book challenges you to reimagine your HVAC business as a full-service Energy Technology Systems Integration (ETSI) firm—a trusted partner that delivers holistic energy solutions that go far beyond heating and cooling.

Inside, you’ll discover how to:

  • Leverage your service-first mindset to deliver energy conservation, efficiency, and generation as a bundled offering.

  • Expand your portfolio to include solar, storage, demand response, insulation, smart controls, and electrification upgrades.

  • Drive recurring revenue through proactive monitoring, maintenance, and energy performance services.

  • Thrive despite policy and financing shifts by building adaptable systems, not just selling one-off products.

  • Position your company as an energy leader, not just a contractor, in your customers’ lives and communities.

With practical frameworks, business model templates, and real-world examples, this book gives HVAC professionals the blueprint to evolve into resilient, future-ready energy integrators.

If you want to stop competing on price and start commanding value—this is the transformation your business needs.