Best Septic Tank Repair in Charlotte NC

I found water coming into my house from the main water line. I called Michael and Sons for emergency service, they told me someone would be here between 7:00 and midnight. Towards midnight, they told me no one was available until the next day.
When they came, they diagnosed the problem as a leak in the line leading to the house. It took well over a week for them to come to do the repair work (they showed up late that day). The inspection found multiple things that needed to be corrected. It took another week for them to complete the outdoor work, and longer to come to do the inside work. I would make multiple calls and get no call backs. I made two appointments that no one showed up for, and no one called to say they weren't coming. After finishing the work (which included work on the water heater), there was a drip that they said would probably stop in an hour. It didn't. It took a couple days to get them back out to look at it. I was told the pressure relief valve was failing, and the age of the part meant it wasn't in stock. I would probably have to replace the entire water heater. Two other plumbers told me that the part is standard and readily available. And if I wanted to replace the water heater, they would do it for nearly half the cost Michael and Sons quoted me.