On our first visit to your home, we will look for any obvious leaks in your heat and air system. We can calculate how much cold and hot air you are actually losing in places like your attic, your garage and in between walls. Many people already know they have hot and cold spots, or their energy bills are higher than they should be. So, our initial test helps you understand how well or how poorly your system is performing. Many people are surprised to find out how much good air they are losing through leaking ducts and vents.