Another local service ‘diagnosed’ a sewer odor to bathroom from my Aerobic septic system as a pipe with a sag or belly. The estimate was excessive. Got another bid with Double L. A much more reasonable price was estimated, along with a confirmation video inspection which reveal the initial diagnosis was totally wrong! Opted for a smoke test since I had had a reoccurring odor periodically for 2 years. The upstairs toilet seal replaced by old previous guys 2 years ago…incorrectly and the ring never sealed near the pipe. Lance M. and team did the job right, saved me a LOT of money, cleaned before and after the task. I’ve found the plumbing service I will use and highly recommend.