On site to look at 2 - 75 gallon water heaters. After inspection found heaters still working but due to age, are at the point where they should be replaced. Discussed findings with customer and quoted to replace both water heaters, expansion tank, re-circulation pump and two check valves. Left customer estimates to do that as well as install a LeakSmart whole home protection system. As per service manager, price given for LeakSmart is only valid if it is installed at the same time as the water heaters.