Gary tackles home improvement conundrums with callers. He advises a homeowner dealing with a cracked door and potential foundation issues, suggesting a structural engineer's assessment to determine the cause. Gary also discusses the importance of proper insulation in preventing ice dams and shares tips on how to address a water heater that's been in operation for 38 years. Additionally, he offers advice on choosing the right flooring for a basement, recommending luxury vinyl tile or roller rock coating to prevent mold growth.