I am not a person for letting just anyone into my home but after talking to one of my neighbors, I think I would take DTE Energy up on this deal.
My neighbor told me her daughter had the Energy Checkup from DTE at no charge to her and was very pleased. What a great way to get ready for the cold winter months & save on air in the summer.
DTE will arrange for one of their employees to come to your home but before coming, they will contact you to let you know and the person will show up with proper ID. Once there, they will go through your home and point out things that may need to be addressed and help save you money. They will also put faucet aerators on both your kitchen & bathroom faucets, wrap your water pipes and replace your shower heads with water saving devices.
All of the above is done for you at no cost and well worth the visit according to my neighbor. The visit takes approximately one-half hour.