Originally Posted by Hants
Did they put a blower in your door to see how much/where you're leaking?
Right. If you haven't had it done get a blower door test. I buddy of mine does such work (NM) and he tested my house for me one December. The test puts the house under vacuum. It was very fun to walk around the house with his infra-red camera and see where the cold air was coming in from. Mostly fixtures in the ceiling and sockets on the exterior walls. Someplace I have those pics.