Many Valley neighborhoods went up within a few years of each other, so faucets and valves on the same street are often about the same age. Hard water can stiffen cartridges, wear seals and crust aerators, and that leads to the usual problems, like a kitchen drip, a stiff handle, or a shower valve that keeps dripping after it's closed.
The drip is usually a worn cartridge or seal, which is a small repair. A handle that's hard to turn often has wear reaching the parts inside. A leak at the valve inside the wall is harder to spot, and it can cause damage in a newer home before anyone notices. Parts suited to hard water are worth asking about at repair time.
The service covers kitchen faucets, bathroom faucets, shower and tub fixtures, repair while the fixture has life left, and replacement with hardware suited to the Valley when it doesn't or when better is wanted. The contractor bases the recommendation on the fixture's actual condition and explains it in plain terms, and then the decision is yours.
