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Your home is cooler in summer and warmer in winter—and your utility bills are lower. You can reclaim those underused areas of your home that you avoid because they are uncomfortably warm or cold. And you can be confident the work is completed by professionals who have the knowledge and skills to address your homes' needs because Home Performance with ENERGY STAR Sponsors perform quality assurance checks on their contractors. You get all of this plus the satisfaction of doing the right thing for the environment because an energy-efficient home produces less greenhouse gas.