You might not see it, but there’s a good chance your windows are quietly wasting energy—and driving up your utility bill.

Do you know how to caulk—or even what caulk is? It’s something you rarely notice, but there it sits every day doing some pretty important work in your home. Once applied, this thin line of goo hardens ...

Dear James: I weatherstripped my windows last year, but I can still feel a draft near them on windy days. What else can I do myself to reduce these air leaks? — Troy M. Dear Troy: Most air leaks by ...