The Lowering Home Energy Costs Act extends and restores federal tax credits designed to encourage homeowners and builders to invest in energy-efficient improvements. Specifically, the bill extends the New Energy Efficient Home Credit through December 31, 2032 (rather than expiring June 30, 2026) and extends the Residential Clean Energy Credit through the same date (instead of expiring December 31, 2025). The legislation also restores a separate Energy Efficient Home Improvement Credit that was previously eliminated. These tax credits affect homeowners making energy efficiency upgrades, builders constructing efficient homes, and those installing renewable energy systems like solar panels. The bill contains no specified federal funding mechanism, as tax credits reduce tax revenue rather than requiring direct appropriations, and all provisions are effective through 2032.