A few signs are if doors/windows become difficult to open or close. Also watch for cracks on the exterior brick, or if you start to see your garage leaning, these are signs that something is going on with your foundation.
The soil continuously undergoes changes in moisture content. As the ground dampens and dries up over and over again, it expands and contracts, pushing and pulling against the foundation until its eventually gives way under the strain.
A repaired foundation won’t make your home increase in value, but it can keep that value from decreasing. Also, lifetime transferable warranty is very attractive incentive in the eyes of most home buyers.
Depending how well the patio is anchored to the home and the ground underneath. If you have any doubts about the strength and stability of your patio to withstand the load of a new room, Call Crown Leveling Inc. at 1-800-699-4814