Emergency Plumbing · Burst Pipe
A pipe burst in house pipework discharges until the main valve is closed, and reported repairs run $200 to $3,000 while the damage runs far higher. What to do when a pipe bursts is four moves in the right order, and the third is the one every guide leaves out.
A water pipe burst discharges until the main valve is closed, and one supply line moves hundreds of gallons in an hour. Repair runs $150 to $2,000 where the pipe is accessible, averaging near $500.
A busted water pipe is stopped at one place, the main valve. The licensed California contractor Anytime Plumbing says it plainly: turn off the main supply right away.
The first ten minutes
Clockwise until it stops on a wheel handle, a quarter turn to crosswise on a lever. This is the only step that stops the supply.
A basement faucet plus an outside spigot drains the water still standing above the break, which otherwise keeps feeding the leak.
Only from a dry position. If you cannot reach the panel without standing in water, call the power company to cut supply at the meter.
Wide shots, then close shots, then the failed component kept aside. Call a licensed plumber with the water already off.
“If you're dealing with a burst pipe, turn off the main water supply right away to stop the flow and reduce damage.”
This is the single most common reason a homeowner concludes the shut-off valve is broken. They close it, water keeps coming, and they panic. The valve is usually fine; the pipes above it simply have not emptied yet.
Open the lowest fixture, usually a basement laundry sink, and add an outside hose bib. Service Stars treat this as the step after closing the main: relieving pressure drains the pipes, not the break.
Close the nearest valve that stops the flow. Service Stars' rule is isolate-then-escalate: one fixture to its own stop, multiple to the main. Showers and tiled tubs have no local shutoff.
One situation moves step three to step one: water touching outlets, appliances or the panel.
Never cross standing water to reach a breaker panel. Dry-shod, kill the circuit or the main; otherwise ask your power company to cut supply.
A pipe burst in house walls is the expensive kind, because it runs unnoticed. Three checks locate most hidden breaks without opening anything.
Stains, bubbling paint, a musty smell and an unexplained bill increase are the slower signals. Our page on the warning signs of a hidden burst goes through each one and what it rules in or out.
Indicative US ranges. Always get a written quote.
| Job | Typical range | Notes |
|---|---|---|
| Burst pipe, accessible run | $150–$2,000 | Reported average around $500 |
| Burst pipe under slab or concrete | $500–$4,000+ | Locating and breaking concrete dominates the bill |
| Main water line repair | from ~$225 | Reported where the homeowner digs the trench |
| Overall reported range | $200–$3,000 | Across accessible and buried repairs (Fixr 2026, read 2026-08-16) |
| Emergency call-out on top | $75–$500 + $100–$350 / hr | Trip fee plus after-hours labor |
| Resulting water damage, severe cases | $5,000–$70,000 | The damage, not the repair (III 2026, read 2026-08-16) |
Source: Angi burst-pipe repair cost data; Today’s Homeowner emergency plumbing cost report; homeowner-reported figures from public forum threads, marked as reported (retrieved August 2026). Figures vary by region and timing.
Figures last checked
Access sets the price: the same copper joint failure is an hour in an open basement and a day for a pipe burst underground.
That is why a quote can rise once a wall is open. Ask for a fixed price to expose and diagnose. Our breakdown of the after-hours bill covers trip fees.
Old gate valves seize. Forcing one snaps the stem or shears the gate off inside the body, and a contained leak becomes an open main.
Try steady pressure and nothing more. Service Stars say not to touch an old valve: a snapped stem is worse than the leak. The meter box outside house walls belongs to the utility.
Master plumber Roger Wakefield says to own that route first: a meter key and wrench cost very little. Waiting until the house floods to find the shutoff is what makes it expensive.
Keep the failed section. A split length of pipe is physical evidence that the failure was sudden rather than a slow leak someone ignored, and that distinction is what the claim usually turns on.
Log the times you found it, closed the valve and the plumber arrived. Policies require prompt mitigation, so a timeline supports the claim.
The repair and the drying are two trades. A plumber fixes the pipe; wet insulation and subfloor are a restoration job.
Wet fiberglass inside a wall cavity rarely dries in place. If water reached materials rather than tile, expect air movers for two to four days.
Ask to be there when the plumber re-pressurizes. Bring the system back slowly and walk every joint.
24/7 dispatch network
Tell us what failed. Local plumbers covering your area will contact you directly. Submitting costs nothing and there is no obligation to hire.
Fire, a gas smell, or an injury? Leave the building and call 911 first, then your gas utility or power company. Use this form once you are safe.
Know the line
Emergency Services 24H is a referral service, and the plumbing emergency guide covers the rest, including whether tonight qualifies at all. We do not employ plumbers and we do not carry out the repair.
Your request routes to local contractors covering your area, and they contact you directly to quote and schedule. Price is settled between you and them, which is why the cost table above is published rather than hidden.
Straight answers
Short, plain answers to the questions people ask us most about this page.
Browse all guidesClose the main, then tell the landlord in writing the same night. Photograph the burst water before you clear up: your possessions sit under your contents policy, not the house insurance.
A pipe outside house walls on your side of the meter is yours; one on the street side belongs to the water company, who attend without charge. The meter is the boundary.
Close the main shut-off, then open the lowest faucet to drain the pressure. If water is near outlets, cut power from a dry position first, then photograph everything.
Freezing is what causes pipes to split: water expands as it freezes and pressure builds between the plug and a closed tap. High water pressure and corroded pipe do the rest.
Whether a burst pipe is covered by insurance turns on sudden and accidental discharge: drywall and contents usually are, the pipe and labor often are not.
It depends how long it ran. The EPA puts the mold window at 24 to 48 hours, and to fix pipe burst damage runs $150 on an accessible run to $4,000 under a slab.
Sustained sub-freezing temperatures, an unheated crawlspace, and any water pipe on an exterior wall. A tap slowing to a trickle in cold weather means an ice plug upstream.
Not once the main is closed. If you isolated it at a branch valve, the rest can stay live, but check every joint downstream.
Independent, publicly published sources, quoted with attribution and linked in full. None is affiliated with Emergency Services 24H, reviewed this page, or works in the referral network.
Reviewed on . If a figure here no longer matches its source, that is a bug, so tell us and we will correct it.
24/7 dispatch network
Tell us what has failed and how soon you need someone. We route your request to local contractors covering your area, and they contact you directly.
Fire, a gas smell, or an injury? Leave the building and call 911 first, then your gas utility or power company. Use this form once you are safe.