We just bought a house and discovered after one month that we had Quest Piping (Polybutelyne) which is known to rupture.  We had a pipe burst in our living room on Memorial Day.  They came on recommendation from our home warranty company and since we were clueless who to use, we thought we’d give them a try.  We couldn’t have been happier.  Steve and Tim were great and took care of everything.  They even billed our insurance company so we didn’t have to pay upfront.  We were quite grateful.  I would recommend them any time in an emergency situation!