I have a brick porch at the front of my house that has always been a bit cold and damp. I've replaced the front door and had the porch roof resealed, but still get a lot of condensation. So much that the wooden door into the hall swells in winter and doesn't close properly. I'm not sure what to try next - a dehumidifier would help, I'm sure, but I'm wondering if insulation of the walls would help, or something else? If anyone has any experience or advice to offer I'd be grateful - I live alone and this kind of thing takes up more worry space in my brain than it should! Thanks.