“Mark and Gretchen replaced a water heater for me today and did a great job. Mark provided an estimate over the phone ahead of time and the actual price was very close. Work was done on time and they were respectful of my home. They paid attention to little details, like writing the date of installation on the side of my water heater, and filling out my product registration form for me. This is the second time Mark has done work at my house, and the project he completed a year ago - fixing a leak in my bathtub - is also still working well. I highly recommend Castle Plumbing.