Customer called us out for toilets that wouldn’t flush and sewage coming into the basement. At customers request I did not run water before pulling the toilet. I recommended pulling the toilet and running a cable machine down to clear the blockage. I removed the toilets and it was holding water. I ran the cable machine down successfully clearing the blockage. I have a sewer supervisor scheduled to come out. Customer is also being contacted by a remediation company. I reinstalled the toilet with new wax ring, closet bolts, china caps, and supply line. I did not caulk do to a camera needing to be ran. Tested toilet and shower. Cleaned up.