I did some pretty extensive research on plumbing companies before electing to go with Instant Plumbing for this larger job. Our house is about 25 years old and the pipe used is notorious for failing around this time so we decided to have all of the pipe replaced.
Not only was Instant Plumbing's quote the most reasonable, we were very pleased with the job that they did. Our specific plumber was Shaun K. and he was really professional and did a great job. I have already recommended them to several friends needing plumbers and would use them again.
One note of caution, should you decide to do the SAME plumbing job note that these guys are plumbers, not drywall contractors and as such, there are many holes left in your drywall once the pipe work has been completed. None of the plumbing quotes we got at the start incuded repair of the drywall either.
Time to look for a good drywall contractor now!