tree in backyard

COREfficiency, Inc.

in business since

Compare quotes from up to 3 heating & cooling contractors!

Enter a zip below and get matched to top-rated pros near you.
Zip Code

About Us

  • on Angie's List for 3 years
We are energy-efficient professionals who specialize in QuietCool Whole-House Fan sales and installations, as well as other energy-efficient products including LED lighting, electrical upgrades, attic venting, and more!
Contact COREfficiency, Inc.
Phone Number
(805) 215-5504
1241 Johnson Avenue, Suite 181
San Luis Obispo, CA

Visit the Angie's List License Check page to find licensing requirements for professionals in your state.