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Home Energy Assessment

When your home is operating at full energy efficiency, it will often increase in value. You could also save 5%–30% on your energy bill by making efficiency improvements as identified in your home energy assessment.

Do-It-Yourself Home Energy Assessment

A diligent self-assessment can help you pinpoint problem areas and prioritize your energy efficiency upgrades. Learn more about how to perform a self-assessment below.

Check Your Utility Bill

Familiarize yourself with the separate charges for your natural gas, electricity and water usage (if applicable) that appear on your monthly bill(s). Track how much you spend on average each month to gain a clearer understanding of your energy expenditures—and where you can start saving.

Look For Leaks

Check all the plumbing in your kitchen and bathroom(s). You’re looking for any water leaks, as well as any loose or deteriorating seals, or pipes that might need to be replaced.

Check For Drafts

If you can see any sunlight between your doors and windows and their frames, or if you feel any air seeping through, your home isn’t properly sealed. And as cold air enters and warm air escapes, the cost of keeping your home at a comfortable temperature in winter rises. Doors and windows, and even the spaces around electrical and phone outlets, are often a major source of energy waste.

Take The Temperature

What’s your thermostat set to, and is it programmable? Keeping temps set lower during the winter can help save a bundle on heating costs, while lessening the use of your AC in summer does the same.


Are your old appliances using—and wasting—too much energy? Switch to ENERGY STAR–certified appliances and you could save on your next bill.

Online Home Energy Survey

Enter your Zip Code to be directed to your energy provider

Qualified Contractors and Raters

When ready to take a serious look at your whole-house performance, a professional home energy assessment conducted by a participating contractor or rater in the Home Upgrade program can provide a thorough evaluation of your home’s energy use. Learn more below about getting a room-by-room examination of your home.

What Are Participating Contractors and Raters?

Participating contractors and raters are qualified by the state of California to complete the energy-efficient installations required for home upgrade and advanced home upgrade projects. Participating contractors:

  • Have completed extensive training in building science
  • Will help you maximize energy savings, better indoor air quality, and safety
  • Will work with you to manage and submit all rebate applications on your behalf
  • Will provide information about financing options for your home improvement project
  • Are held to higher installation standards than the average contractor

Your participating contractor or rater will help you take advantage of rebates for which you are eligible, and will submit the rebate applications on your behalf. Typically, you can expect to receive your energy-efficiency rebates within four to six weeks of application approval.


The Home Energy Assessment Checklist

Things you can expect from a participating contractor or rater during your home’s energy usage analysis:

  • Analyze your past year’s utility costs to determine your base energy consumption
  • Have a discussion with you to learn how the home operates.
  • Explain the audit process
  • Conduct an exterior inspection of your home
  • Conduct an interior visual inspection
  • Do a health and safety inspection
  • Inspect combustion appliances
  • Conduct a blower door test
  • Analyze the findings and create a comprehensive (whole home) energy report