How does a diagnostic audit differ from what my insulation/ window/ furnace salesman tells me I need?
Most Energy Auditors are independent diagnosticians - they are not looking to sell you a product. There is an old saying, "If all you sell is hammers, everything looks like a nail."
An diagnostic auditor is more like a good physician who looks for causes to treat, not just symptoms.
An independent energy evaluation can diagnose your issues correctly, and send you to the right sources to help fix what is wrong.