Was one of four plumbers I called lamenting frequent mixing valve replacements (4-5 in ~7 years) and hot water flow issue to one shower when another was running despite pressure balancing valves at the shower. Marc at Horizon Plumbing was only one to point out that the mixing valve had not been installed properly and as a result was always warm from hot water convection effect (plus I keep the tank at max for dishwasher line before mixing valve), likely wearing it out faster. He also recommended going to larger 3/4" mixing valve with hot water pulled from 3/4" feed using 3/4 pipe (instead of the 1/2" pipe the builder put in). Worked beautifully. Also had him add shutoffs to make replacing mixing valve in future easier (i.e. no need to drain the lines), though hopefully it won't be as often. Price was very competitive and job done very professionally.
- Company Response
You are an educated customer that knew exactly what he wanted. Thanks for the great review Jean. It's much appreciated.