Q: My old doors don't seem airtight anymore and they show years of use. What are some inexpensive improvements I can make ...

Dear Pat: I am planning to install a new door for atwo-car garage. I have read through many installation instructionsonline and have an idea how to do it. Do you have any special tipsyou have learned ...

Q. My house has an old wood front door and a steel back door. I cannot afford to replace them, but I want to make them more airtight and efficient. What things can I do myself to improve them? A.