Last winter, I had multiple problems with my septic tank, including broken diversion valve and pipes. I had multiple septic tank companies work on it and give me estimates. Some were entirely clueless but pretended otherwise; fiddling and charging me hundreds of dollars for useless guesses. Others were flakes. Yet others seemed to know but wanted ridiculous amounts of money. I wanted honesty and competence. Then I came across Affordable Underground and its owner Jim. He drove all the way from Morgan Hill. Gave me a an honest estimate and did not try to sell me anything I did not need. His price was very competitive. He was also very pleasant to deal with. I checked around and he had a good reputation. He arrived on the promised day early despite a rainstorm in January. He finished the job with his workers. They were definitely pros. He was there working with them. The work was excellent, and the reliability was terrific They put a riser for the septic tank, replaced the pipes in the septic tank, replaced the valve and the surrounding pipes outside the septic tank, and installed clean-outs. They also dug and covered the dirt. The riser cover was out of stock in January anywhere in the nation due to a supplier shortage. Jim put a temporary cover for the riser and returned two weeks later with the new riser. We could not be any happier with their work. When they finished, the area was perfect and tidy. Honesty and competence - rare but there. I will never use anybody else for septic repair.