PG&E found leaks and turned off the gas to my house. I called Armstrong, based on List recommendations. Scott came out the next workday to scope the job and give an estimate. He was thorough, took photos, talked through likely options, and helped schedule the work. Six days later, plumbers came, armed with Scott's photos and suggestions. Clete explained his strategies as events unfolded. He and his assistant worked carefully, intelligently, and industriously. After repairing external leaks, they spent hours in the crawl space under the house, where they found and repaired perhaps 10 leaks, dealt with a pipe that broke, and sometimes coughed. It was much worse than expected. They took no lunch break. Clete cancelled his 3 o'clock dental appointment to finish the job. True, they started an hour later than scheduled, probably because the assistant had worked an emergency call the previous night and got little sleep. They did hard, trying work in conditions most humans couldn't tolerate, and continued being caring and courteous. What heroes.