We be newbies and it is time to enclose our lanai.

I've read over all the old posts on glass versus acrylic.

Some posts say building permits are required for glass and result in a higher assessment/additional taxes. Some posts say acrylic also requires a building permit. Of course we don't want to start paying higher taxes!!
I'm wondering if anyone can tell me:
- Where can I call to see if a building permit is needed for acrylic?
- Can anyone recommend a glass installer who is dependable and has good prices?
- Can anyone recommend an acrylic installer?
We had our first estimate yesterday for acrylic - $3600 for a small lanai. (From a flyer delivered weekly from "Custom Windows"). Beautiful floor to ceiling windows which slide horizontally and stack. Has anyone had any experience with this company? :dontknow:
Hoping to get some great advise from my fellow TOTVers! ;D I welcome any and all comments.
Thanks, and have a blessed holiday season.
Barefoot