I had the full energy efficiency report with infrared camera and expert's eyes and blower door test. It was enlightening. I strongly recommend first thing get t

I had the full energy efficiency report with infrared camera and expert's eyes and blower door test. It was enlightening. I strongly recommend first thing get the expert report and follow the recommendations. A few years later I got another report and fixed a few more things. House cold spots mostly went away, bills went down, less outside noise, and have the same windows and furnace.