Not an uncommon experience, sadly. You need to find the old pro in your area. Around here we have Grant, and then there was Alan. Alan worked with his son and they were a hell of a team. Put Alside Mezzos in my house, 11 windows, in and out in 4 hours, charged me about $7,000. In the year of our Lord 2020.
There aren’t too many Alans and Grants around. Find them before they all die or retire.