I live in Texas and had to have foundation repair this fall before it cooled down. They basically dig holes down to the bed-rock and jack your house back up. This is pretty common in Texas as the soil is bad. Anyhow, one zone of our sprinkler zone doesn't work now and the sprinkler repair man just quoted me $700 to find the severed wire and fix. I told him I would hold off for now. Does that sound a little high?