Rotted subfloor question
I had water damage to a subfloor around an old sliding glass door. The worst damage was directly under/in front of the door, with slight water damage visible to the side of the door (floor there is solid, but stained). When I recently had a new sliding glass door installed, the installer replaced the rotted subfloor directly underneath/in front of the door during installation, but did not replace/repair the portion off to the side that bordered the exterior wall. When I pressed him on it, he claimed that cutting out that piece of the subfloor and leaving the remaining small piece between the upper plate and joist (split level home) would jeopardize the structural integrity of the floor.
I'm not sure if he is being straight with me, or is just trying to get out of coming back and finishing the job that I paid for. I am waiting to put a laminate floor in until this issue is resolved.
Any thoughts or insight would be greatly appreciated.