1. Document, then contain
Note the symptoms, limit further damage where safe, and gather relevant history.
2. Walk the house and the lot
Installation method, flashing, sill condition, frame material, glass package, trim restoration, and central-Florida sun exposure all matter as much as the window itself.
3. Put the scope in writing
Preparation, protection, materials, access, permits, testing, cleanup, finish restoration, exclusions, and change-order rules all belong in it.
4. Weigh the providers
Check credentials and compare the reasoning and boundaries behind each bid, not only the bottom line.
5. Close out the job right
Confirm testing, cleanup, documentation, warranty terms, and who handles maintenance going forward.