Plumbing Valve Repair & Replacement

Plumbing valves control the flow and pressure of water throughout your home. When a valve fails, corrodes, or won’t fully open or close, it can lead to leaks, water damage, or the inability to shut off water during an emergency. D.M. Kelly Mechanical provides expert residential valve replacement services, ensuring critical shutoff and control valves operate properly and meet current plumbing standards. Whether it’s a main shutoff valve or a fixture‑level valve, our team delivers reliable, long‑lasting solutions.

What We Offer

• Main Water Shutoff Valve Replacement — Replacing outdated, seized, or leaking main shutoff valves to restore full control of your home’s water supply

• Fixture Shutoff Valve Replacement — Replacement of under‑sink and fixture valves for toilets, sinks, faucets, and appliances

• Pressure Reducing Valve (PRV) Replacement — Repair or replacement of pressure regulators that protect plumbing fixtures from high water pressure

• Gas & Water Valve Coordination — Proper valve selection, installation, and testing to ensure safe, code‑compliant operation

• Emergency Valve Repairs — Prompt service when failed valves cause leaks or prevent water from being shut off

Signs You Need Service

• Valve will not fully turn on or off

• Water leaking from valve handles or fittings

• Corrosion, rust, or mineral buildup on valves

• Inability to shut off water during an emergency

• Sudden changes in water pressure

• Old gate or globe valves that no longer function reliably

• Plumbing upgrades or remodels requiring new valves

Faulty valves can turn minor plumbing issues into major water damage events. Replacing worn or unreliable valves improves safety and gives you peace of mind knowing you can control your plumbing when it matters most.

Common Questions

Why is valve replacement important? Working valves are essential for controlling water flow, isolating leaks, and protecting your home during plumbing emergencies.

How long do plumbing valves last? Most valves last 10–20 years depending on water quality, usage, and valve type. Older valves may fail without warning.

Should I replace old shutoff valves even if they don’t leak? Yes. Valves that haven’t been operated in years often seize internally and may fail when needed most.

What types of valves do you replace? We replace main shutoff valves, fixture shutoffs, pressure reducing valves (PRVs), and other residential plumbing control valves.

How long does valve replacement take? Most valve replacements take 1–2 hours, depending on location, access, and valve type.