WILTON – Making an older home energy efficient without sacrificing its charm and character can be a challenge.

On Monday, May 9, 7 p.m., at the Collaborative Center, the Heritage Commission will sponsor a talk by Elizabeth Paliga of Historic New England Preservation Services. She is the manager for Northern New England and oversees 43 privately-owned easement properties, working with homeowners to answer questions of routine maintenance.

She will present a framework for making an old house more energy efficient, including insulation, air sealing, mechanical upgrades, and other energy opportunities without damaging the home’s historic value.

She holds a masters’ degree in Architectural Conservation from the University of Edinburgh and worked with local governments in Scotland to protect valuable properties. She also holds degrees in archeological and architectural studies from Boston University.

Historic New England is the oldest, largest, and most comprehensive regional heritage organization in the U.S.

For more information, email heritage@wiltonnh.gov.

The program is free and open to the public.

The Collaborative Center is located in the parish hall of the Second Congregational Church, 25 Gregg Street.