I have used many companies to come in and test for a gas leak which is required by city code. I can tell you that I will not be using any of those companies except Potter's Plumbing. The young man that came out to do the work was a very nice young man, very polite and very professional. I thought he did an excellent job! Let me say that again, he did an excellent job! The test proved that I had nothing to worry about, which I knew already but like I said before it is a city requirement. Because of the quality of work that this young man did and the great impression that he left with me, I will be using Potter's Plumbing from now on!