Where do you get license for home repairs?

Generally, you need to get it from your local building department--that may be a city or county one. I live in Ohio, and that is the way that we handle licensing for contractors. Some counties require licensing for specific kinds of contractors, like electrical contractors, HVAC contractors, general contractors, etc. This is how it works for Ohio, and it varies county to county, and certainly state to state.

If you are in Ohio, not being licensed when you perform work could be one of many violations you have committed of the Ohio Consumer Sales Practices Act. You need to contact a lawyer in your area about advice on the Consumer Sales Practices Act.