
Direct vent fireplace letting rodents in
Hi all,
I have a direct vent fireplace in my home and I am a new homeowner. I'm currently in the process of trying to exclude rodents from the home and found that outside where the fireplace attaches to the home, the floor has a large gap and had some bite marks and a lot of feces inside (when I stuck a borescope inside). The floor is in rough shape and has a large gap along the side. For the time being I have turned off the pilot light and the gas line for the fireplace, and have shoved steel wool and some spray foam in the crevice. I don't know if that's of any use if rodents can just chew the wood.
Here are pictures of the current situation. https://imgur.com/a/E8xvRd5
My big question is, how difficult will it be to replace the floor? Is that something I should contact a fireplace company about? We were already getting a lot of draft through the fireplace (a lot of cold air coming in during winter) so I know that it has issues already.
How much might it cost to have the floor replaced professionally and ensure the fireplace is properly sealed? I know each situation is different, but I'm just asking for a ballpark if that's possible. Or any other possible advice.
Thank you!