Dennis Cheslik is cofounder of www.ecocontractor.org , a non-profit organization promoting energy conservation and preserving the environment. His network, GreenTex Energy Savers, provides a variety of home energy services in North Texas, including Insulation, Radiant Barrier, Solar Screens, Discount Electricity, and Solar Energy Systems.

Dennis is also the author of "How to Lower Home Energy Bills: From A to Z" available at amazon.com.