Water shut off valve replacement cost
Main water shut off valve replacement cost averages $250 to $600, according to HomeGuide's 2026 data. Easy-to-reach valves often cost $350 or less; buried valves can exceed $1,000.
| Typical replacement (HomeGuide) | $250–$600 |
| Accessible valve in basement or near meter (HomeGuide) | ~$350 or less |
| Buried or vault valve (HomeGuide) | $1,000+ |
| Valve part (HomeGuide) | $10–$50 (heavy-duty $150+) |
| Smart/automatic shutoff valve, part (HomeGuide) | $150–$500+ |
| Plumbing permit (HomeGuide) | $30–$500 |
| Trenching to a buried valve (HomeGuide) | $5–$12 per foot |
Why replace a working valve?
Many older homes have gate valves that seize or leak when finally turned in an emergency. If your main shutoff won't close fully, it can't protect you during a burst pipe. Replacing it on your schedule is much cheaper than discovering the problem with water on the floor. Test yours once a year: find and test your main shutoff.
Gate vs. ball valve
Quarter-turn ball valves are a common replacement choice because they close quickly and are easy to see open or closed. Ask your plumber which type fits your line and local code.
Utility side vs. your side
The valve at the meter or curb may belong to the water utility. If that valve is the problem, call the utility before hiring a plumber. The valve inside the house, or on your side of the meter, is usually the owner's responsibility.
Consider an automatic shutoff
Smart shutoff valves can close the main automatically when a leak is detected. HomeGuide prices the valve alone at $150 to $500+ before installation. They make the most sense in homes that sit empty for long periods.
Bundle related work
While the water is off, it's a good time to check the pressure regulator and any leaking fixture valves.
Frequently asked questions
How much does it cost to replace a main water shut-off valve?
HomeGuide puts typical replacement at $250 to $600; accessible valves often cost $350 or less.
Why are buried shut-off valves more expensive?
Excavation. HomeGuide says buried or vaulted valves can cost $1,000 or more, with trenching at $5 to $12 per foot.
Do I need a permit to replace my main shut-off valve?
Many cities require one; HomeGuide lists plumbing permits at $30 to $500.
Who replaces the shut-off valve at the water meter?
The meter or curb valve is often the utility's; contact them first.
Related cost guides
- Burst pipe repair cost
- Main water line leak repair cost
- Water pressure regulator replacement cost
- Leak detection cost
Sources
National figures from published 2026 cost guides, retrieved 10 Oct 2026. Local prices, especially in high-cost metros, can be higher. Always get written quotes.