A Fallbrook property usually has more fixtures than a home in town, with the main house, guest quarters, outdoor sinks, the workshop and the barn spigots, and all of them wear with use. The signs are the same as anywhere, like a kitchen drip the family has gotten used to, a handle that only works a certain way, or a shower valve that doesn't fully shut off, plus outdoor hose bibs and fixtures that sit out in frost and weather. It's normal wear, just spread across more fixtures.
Water costs matter more on a property this size. Minerals in district water, and grit on properties with wells, can wear cartridges and seals, and on a property watching its water use, a lot of small drips add up over a year. The causes are the usual ones, with drips coming from worn cartridges and seals, stiff handles from worn parts inside, and valve leaks sitting inside the wall where you can't see them. Looking at all of the property's fixtures together can work better than handling them one at a time.
The service covers kitchen, bath, shower and tub fixtures, along with outdoor and utility fixtures, with repairs and replacements using hardware suited to the property's water and weather. Everything is explained plainly, and you make the decisions at your own pace.