First you need to make sure that the foundation problem has been diagnosed correctly. Then you need to know, what are the different options which are available to repair your foundation problem.
A couple of possible foundation problems are foundation settlement and foundation heaving. Both of these problems are very different from each other and both of these foundation problems require different repair approaches.
Some of the different repair options for heaving , due to expansive soils, are: gutters, improve the drainage around the home, add a drainage system, helical piers, remove and replace the area of the foundation which has heaved up and a combination of these repair options can be used.
So, as you can see, there really isn’t a simple, straight forward answer as to how much a foundation repair should cost. It depends on which type of foundation problem you have, the size and the area of the foundation which needs to be repaired and which repair options would be best as a repair solution.
If you are not confident that your foundation repair contractor has diagnosed your foundation problem correctly and in turn you are not confident that your foundation repair contractor is applying the correct repair option or the correct combination of possible repair options then I would advise you to hire a structural engineer or a soils engineer who specializes in foundation problems and foundation repairs. For the more severe foundation problems I would advise that you hire both a structural and also a soils engineer.
You should focus more on getting an honest and objective foundation repair diagnosis before you worry about the cost of the repair.
I will be discussing the different foundation diagnosis options in my future blogs.