Edgar County follows Illinois state licensing law, and the county or its cities issue the building permit for the job. Below: the state rule, the places inside the county, and live local coverage.
Illinois does not license general or garage door contractors at the state level - licensing is handled at the city/village level - but the state Home Repair and Remodeling Act imposes written-contract, consumer-pamphlet and liability-insurance duties on anyone doing home repair work.