Chicagoland homeowners can improve the energy efficiency and plumbing reliability of their houses with targeted air sealing and insulation upgrades. During Chicago’s extreme cold, proper air sealing ...

Q: My heating ducts are in the cellar, and the small ones that go to individual rooms are between the joists. How can I insulate them? The trunk lines (big rectangular ones) are under the joists. How ...

Today's 'Ask This Old House' was all insulation all the time. Callers checked in to ask about insulating bricks in row sides, cooling buildings without AC, and why heating and cooling mechanisms ...