Landmark Home Warranty has the best reputation for customer service and fulfilling their warranty agreement. They cover unknown pre-existing conditions, which covers an issue that occurred prior to coverage but wasn't detected, or wouldn't have been detected with a reasonable inspection.
I have a Landmark warranty on all three of my properties, and have used them for several years. Not everything that happened was covered, but they more than paid for themselves with the items that were.
Some things aren't covered, ever, regardless of when they became known.
I have had great luck with American Home Shield for myself and my clients.
$250 Permits (per occurrence)
$250 Code Violations (per contract term)
Improper Installation, Repair Modification
Unknown Pre-Existing Conditions
Refrigerant Revocery and Disposal
Removal of Defective Equipment
Their website is home-warranty.com
Central/South Austin and Surrounding
Mobile 512-789-5845, Claims and Orders 888-492-7359
Home Warranty firm that I do believe covers existing conditions! Good luck! She is a great person! Very nice and knowledgeable!
HAVE AN OUTSTANDING DAY!