Yeah. They will come in and check over your whole house and do minor work like air sealing cracks, install weather stripping, etc. At the end they give you a report and show you all the rebates and costs to do further work.
The blower door test they will do is cool. They pressurize your house with a big fan to see how much air leaks in/out. That's where you lose the most energy. They guy said some people's older homes are so leaky its like having a 5 by 5 wide open hole to the outside.