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About Greenhart

In 2013, Greenhart was formed to answer homeowners’ questions about why their Modesto, CA homes were uncomfortable, and yet their energy bills so high. This involved conducting energy audits to see where our customers were using and losing energy, helping to get them closer to net-zero energy usage to make their living experience more enjoyable.

Our experience led us to create a quick and cost-effective method to approach home energy use and air quality while eliminating time-consuming home energy audits and replacing them with technology and specialized tools to do on-demand analyses and provide our customers with immediate recommendations. Our new and improved approach means you can improve your home comfort without spending tens of thousands of dollars to do so.


Throughout the years we’ve successfully eliminated uneven heating and cooling issues, reduced dust and allergens to make the health and breathing quality in homes better, and have even brought homes to the level of hospital-grade cleanliness. In addition to providing quick solutions for reducing energy use and optimizing air quality and comfort, our Modesto team of service professionals promises:

  • To always put our customers and their homes first.
  • To make our customers’ lives more enjoyable.
  • To ensure our customers’ home comfort solutions are cost-effective.

We have been serving Modesto, CA and the surrounding areas for years, and we look forward to showing you how high energy costs do not need to keep your family from the comfort they deserve.


Our customers can depend on our services, and we have the background to prove it. Our service professionals are:

  • BPI-Certified
  • NATE-Certified
  • Green and EPA-Certified
  • Thoroughly Background Checked

Greenhart has earned the 2015 Momentum award from Build It Green, as well as the PG&E award for being one of the fastest growing companies in our programs. We’re passionate about what we do—particularly when it comes to making the lives of homeowners throughout Modesto and beyond more comfortable and enjoyable.