I found a crusty white powder forming on my water shutoff valves under the sink. Should I be worried?

The cost to address mineral buildup can vary depending on the severity of the issue and whether professional help is needed. DIY cleaning solutions like vinegar are inexpensive, often costing less than $5. If a plumber is required, service fees can range from $100 to $300, depending on the complexity of the repair.
Investing in a water softener can cost between $400 and $2,500, including installation, but can save money over time by reducing plumbing maintenance needs and extending the lifespan of appliances. Preventive measures can also save on potential water damage repairs, which can be considerably more expensive.
11. What This Means for Your Home’s Overall Plumbing Health
Mineral buildup is a common issue in homes with hard water, and while it can be unsightly, it is not always a sign of severe plumbing problems. However, recurring deposits or signs of leaks and corrosion should not be ignored, as they can indicate underlying issues that may affect your home’s plumbing health.