First, diagnose
Grading and gutters usually cost less to fix than anything indoors, and on Carmel's clay soil, keeping water away from the foundation in the first place does real work.
The full scope
- Grading sloped away from the foundation
- Downspout extensions long enough to matter
- Window well drainage, where present
- Surface swales or French drains as needed
- How landscaping changes runoff patterns
Worth noting locally
On Hamilton County's expansive clay, small grading corrections often prevent problems that would otherwise need a larger interior fix later.