If you have a damp garage, then dampness can of course seep into the house through the floor and walls. Usually, to prevent this, waterproofing is done. We did this in the country house. I will tell you that it solves the problem of dampness remarkably. And the craftsmen from Pom Waterproofing did it for us https://pomwaterproofing.ca/interior...g-mississauga/. You can also contact them, a very good company that you can trust.