Well if its inside the house, then just make sure you know how to turn off the valve at the street, or if you can't do it, then, I don't know, just hire someone to get it fixed. What's the most you're going to save with another company, $200? and what do you get paid an hour, $100? so is it worth it to keep shopping. If you have time to waste on this forum debating how good an idea it is to get a single bid, you got to rethink youre process.