The short answer is that foundation repair cost can range from $1500 to $10000 or more. Avoidance of repair may be as simple as correcting watering problems, which is free!
In all honesty, the cost of foundation repair cannot be answered with a phone call. An inspector must look at the property.
For the home owner, Granite Foundation Repair will provide a comprehensive, free evaluation, which includes interior and exterior inspection as well as a site survey. The site survey around the property looks for factors which may be causing the problem such as poor drainage, or soil slumping.