Prices vary based on the size and age of the home, but start at $300. Radon testing is $150. Mold testing is $300.
I follow the InterNACHI standards of practice found here https://www.nachi.org/sop.htm
It generally takes 2-3 hours to complete but can vary greatly due to the size and condition of the home.
I use a tablet and phone based report writing software that allows me to send you the report immediately upon completing the inspection.