Sewer Rehab Houston. Perma-Liner receives many calls regarding sewer rehab in the Houston area. Perma-Liner products can rehabilitate underground sewer lines from 2-inch to 54-inch in a matter of hours. This method of sewer rehab is very popular in the Houston area – and growing every day. If you live in Houston and would like to see a live sewer rehab demonstration, call us to schedule.