Came back from vacation and my mixing valve was leaking water all over my hot water tank. It had been going on for so long the water had calcified and rusted. Scheduled an appointment with FDR plumbing and they arrived promptly (even a few minutes early). Fixed the mixing valve with no fuss or delay. They even drained the main line water filter for me and wiped the gunk off my water tank without being asked! Stellar service. Would heartily recommend.