I missed the age of your child. However, the early steps program offers free evaluations and free therapy. Universities with PHD programs over every good evaluations with very low cost. We addressed my son's speech issues immediately, waiting list were long, etc.. but it's very important to address early. All speech should be inplace by 7. Our son is 7 with 4 correctable errors and we are still in speech. The school system, should also be offering services at the age of 3-5 at home if you call them. I am sure this is different geographically, but it's worth a try. If I would have listened to people who told me not to worry about his speech, we would not have made this much progress.