When it comes to having any type of work done on your home's foundation, it is absolutely essential that you work with the most qualified contractor that you can afford. You want to find someone who has a lot of experience, someone who is insured and someone who is licensed to operate as a contractor legally in your state. If a mistake is made that damages your home's foundation, it can quickly become an enormous financial burden. Take the time to vet the experience and qualifications of any contractor who you pursue for this type of drainage work.

Due to the size and scope of this work, most contractors will require a deposit from you before they start to work. This deposit can cover their expenses and the cost of their crew during the time that they're working on your job. You should be willing to provide a deposit, but not much more than 25% of the total estimated cost of the job. It is always a good idea to find a contractor who is bonded as well as insured.