So this forum has helped me out an awful lot so I thought I would try and give back some. Don't know if this has been covered but it is new to me so I thought I would share. As winter approaches I found myself wondering what to do to keep some money coming in (besides gutter cleaning). I came across the idea of air sealing homes. I think this will work great for the folks who are in the colder climates. Just go back over your client list and give them a call. All you need is a good leak detector and a little handy man skill. The leak detector I have is a thermal one made by black and decker (the TLD100). It ranges in price from $30 to $40. It is really easy to use and this idea is kind of a no-brainer to home owners that want to save money. Just take the detector and go over doors, windows, light switches and electrical outlets trying to find out where there may be a significant temp differences. Definately check the attic entrances and of course reccomend a thermal blanket for water heaters in the attic. You can charge a fee for the inspection and a fee to do the weather stripping around the house. You can even wave the fee if they hire you to do the work. Either way it is easy to do and it really will help the homeowner save money over the winter. Anyway, if this has been covered sorry for the repeat but again, it is new to me. I hope this helps someone.