looking for recommendations to conduct energy audit for 2 family Brooklyn house

We have used Bay Ridge Windows & Doors twice. Make an appointment, don’t walk in to the place otherwise you will be dealing with 15 year olds. Ask for Luis. He will come to your house, measure, etc. He’s excellent. When installing ask for Joe, another guy who has been there forever. We went with their top of the line both times, no complaints. This place knows brownstones.