They were very knowledgeable on what I needed and had no reservations about going into the crawlspace like other plumbers have been. They knew they needed to bring in a new line from the meter as the existing line for the furnace was not sufficient for the furnace and the range. When they brought the new line in, they made it large enough that we could tap off of it for a gas fireplace if we ever decided to do that. They always explained what they were doing and why. The estimate they provided wasn't increased after the work. It was accurate when they gave it to me. There weren't any travel charges, at least not identified separately, which I prefer. I hate thinking I'm paying them the same rate while they drive. They were pleasant and professional. I really enjoyed working with them. I highly recommend them to others that need gas lines installed in their homes.