Welcome to TREAT California!

TREAT software has passed CalTEST and can now be used in the Energy Upgrade California® Home Upgrade Program!! Contractors in California can now use one of the most accurate modeling tools in the country, and a DOE nationally approved WAP tool for ALL residential building types.

TREAT tour videos

All California users can try TREAT free for 30 days!

To welcome all of our new users in California, Performance Systems Development is offering special pricing on purchases of TREAT and a seat in one of our online training courses through May 31st. This 6 hour course is taught over 2 days and is designed to teach users all they need to know about using TREAT for fast and accurate modeling! Users save over $100 with this special pricing. Pick from several training dates for your convenience by proceeding to check out. This training also provides 6 BPI CEUs.

Buy TREAT Package ($799) 30 Day Free-trial

CA modeling guidelines

If you’re interested in purchasing TREAT software or training as a stand alone, contact Clifford Babson to order at cbabson@psdconsulting.com or 215-381-2929 x 313.

On this page you can find information about the latest features in TREAT, watch several introductory training videos, learn more about program specific modeling guidelines, and see TREAT’s accreditations! To get started feel free to watch this quick introduction to some of the newest features in TREAT:

Learn More!

TREAT Licenses are priced to own and come with 1 free year of customer support and free upgrades. After the first year there is an annual fee of $200 associated with maintaining customer support and access to 100% FREE upgrades.

Buy TREAT Package ($799)

For additional questions please contact Clifford Babson at cbabson@psdconsulting.com or 215-381-2929 x 313


Use this table to lookup the incoming cold water temperature of the location you selected in the Long-term Weather Sites in TREAT.  This temperature is to be used in the Advanced Building Inputs in the TREAT Weather/Defaults Screen. This table can also be used as a reference to help define the beginning and end months of the heating and cooling seasons in TREAT.

TREAT in CaliforniaTREAT in CaliforniaRead Article

TREAT AccreditationsTREAT AccreditationsRead More

TREAT TourTREAT TourTake a Quick TREAT Tour

Top 3 Reasons to Use TREAT

  • Streamlined modeling process using the New Building Wizard.
  • Scenario Management: Build multiple improvement packages using the same base model for quick comparisons.
  • Engaging Customer Reports! Show the value of your services to your potential customer and sell more jobs!