No Water in the House: What To Check
Short answer
Check whether neighbors have water. If they do, the problem is on your property: a closed main valve, a service line break, a failed pressure regulator, or a pump issue on a well. If nobody has water, contact the utility first before assuming it's a plumbing failure inside your home.
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What to do right now
The goal in the first few minutes is to stop the flow and keep water away from electrical equipment.
- Shut off the fixture valve, or close the main water valve if the leak is not isolated to one fixture.
- Turn off the water heater if the supply to it has been shut off, so it does not run dry.
- Keep water away from outlets, cords and appliances; do not stand in water near energized equipment.
- Open a low faucet to drain pressure from the line after the main is closed.
- Photograph the damage, then request help so the source can be repaired before more water enters the structure.
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Work through this order
- Test more than one fixture, hot and cold, to rule out a single dead valve.
- Check whether the main shutoff and the meter valve are fully open.
- Ask a neighbor or check the utility's outage notices for planned work.
- Look for wet ground or a soggy patch between the meter and the house.
- Check the meter dial: movement with everything off suggests a break in the service line.
Likely causes, most to least common
- A closed or partially closed main valve, often after recent work on the property
- A municipal outage or planned maintenance affecting the whole street
- A break in the underground service line between the meter and the house
- A failed pressure regulator that has closed off flow entirely rather than just reducing it
- A failed well pump or pressure switch for properties on well supply
Emergency vs. can-wait
Total loss of water is generally urgent — same-day attention — because it leaves the household without basic function and can indicate an underground leak wasting water continuously. If a utility outage notice explains it and a restoration time is posted, there's nothing to schedule until that window passes.
What a professional checks, in order
- Confirms the main and meter valves are fully open before assuming a deeper problem
- Checks the pressure regulator, since a failed one can cut off flow rather than just reduce it
- Watches the meter with everything off to detect a moving dial, which indicates an active leak in the service line
- For well systems, tests the pressure switch, pump, and tank rather than the house plumbing
What makes it worse
- Repeatedly opening and closing fixtures trying to "restart" flow, which wastes time diagnosing the real cause
- Ignoring a wet patch of yard because there's no puddle indoors — an underground service line leak can run for days before it's noticed
- Assuming a well pump issue is electrical without checking the pressure switch and tank first
South Florida notes
Most South Florida homes are on municipal supply, but a meaningful number of properties, especially in western Broward and parts of Miami-Dade, rely on private wells, where a pressure switch or pump failure — not a valve — is the likely cause of a total outage. The high water table can also make a service line break show up as soggy ground quickly rather than staying hidden.
Check these in order
| Check | What the answer tells you |
|---|---|
| Do neighbors have water? | No water anywhere on the street points to a utility outage or main break |
| Is it every fixture or just one? | One fixture means an aerator, angle stop or supply line, not a whole-house failure |
| Cold works but hot does not | The failure is at the water heater, not the supply |
| Is the main shut-off fully open? | A partly closed or seized valve is a common and easily missed cause |
| Any recent work or digging nearby? | A struck service line is a frequent cause after landscaping or construction |
| Is the meter dial moving with all fixtures off? | Movement with no water at the taps suggests a break between meter and house |
| On a well: is the pump running or the breaker tripped? | Points to pump, pressure switch or tank rather than the plumbing |
When no water is an emergency
Loss of water is treated as urgent because a home without usable water is not habitable, and because some causes are actively destructive rather than merely inconvenient.
- Water is bubbling up in the yard, the street or a planting bed — a service line break is losing water continuously.
- The meter is spinning while no fixture works, indicating loss between meter and house.
- There is no water plus a sewage smell or visible wastewater, which is a combined health issue.
- A vulnerable household member depends on running water for medical needs.
- The utility reports a boil-water notice — follow their instructions and the CDC and EPA guidance on making water safe.
Common causes and what the fix involves
| Cause | Typical fix |
|---|---|
| Utility outage or main break | Reported and repaired by the utility; nothing to fix on the property |
| Closed or seized main shut-off | Valve opened, or replaced when the stem has failed |
| Broken service line between meter and house | Excavation and repair or replacement of the damaged section |
| Failed pressure regulator | Regulator replaced and pressure re-set to a safe range |
| Corrosion or scale in old galvanized pipe | Affected sections replaced; whole-house repipe where the run has failed |
| Well pump, pressure switch or tank failure | Pump system diagnosed and the failed component replaced |
| Water heater failure | Hot water only; the heater is repaired or replaced |
What to do while you have no water
- Turn off the water heater — gas to pilot or the dedicated breaker — so it does not run dry once supply returns.
- Close taps you opened while testing, so returning water does not flood an unattended sink.
- Do not use appliances that need a water feed, including dishwashers, washing machines and ice makers.
- Expect discoloured or air-spitting water when supply returns; run a cold tap until it clears.
- If a boil-water notice is in effect, follow the CDC and EPA guidance on disinfecting water before drinking it.
How UrgentHomePro fits in
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We may be compensated by participating providers when a request is routed to them. That is why every cost section on this site explains what drives a price instead of quoting one — the only accurate number is the one a licensed provider gives you after seeing the job.
Terms explained
- What counts as emergency plumbing?
- Emergency plumbing covers plumbing failures that cause damage or make a property unusable if left until the next business day — burst pipes, uncontrolled leaks, sewage backups, overflowing fixtures, a failed water heater flooding a space, or a complete loss of water supply. Work is dispatched outside normal hours and is usually billed at higher rates.
Frequently asked questions
Can a water heater failure cause no water at all?
It can eliminate hot water, but a total loss of both hot and cold points upstream — the meter, main valve, or service line.
Why does the water come back and then stop again?
Intermittent total loss often points to a partially closed valve vibrating shut, a pressure regulator on the edge of failing, or a well pump cycling improperly rather than a complete break.
Is a sudden water outage ever just the municipality's fault?
Yes — water main breaks and scheduled maintenance happen and typically affect a whole street or neighborhood, which is why checking with a neighbor is a useful first step before assuming the problem is on your property.
Why do I suddenly have no water in my house?
The most common causes are a utility outage or main break, a closed or failed main shut-off valve, a broken service line, a failed pressure regulator, or a well pump problem. Checking whether neighbors also have no water is the fastest way to tell whether the cause is on your property.
I have cold water but no hot water. Is that the same problem?
No. If cold works and hot does not, the supply is fine and the failure is at the water heater — pilot, thermostat, heating element, gas supply or the unit itself.
Should I call the water utility or a plumber first?
Call the utility first if neighbors are also without water or you see water surfacing in the street. Call a plumber if the loss is limited to your property, especially if the meter is moving with every fixture off.
Can a closed valve really shut off the whole house?
Yes, and it is more common than people expect after recent work, an irrigation repair, or a valve that has seized part-open with age. It is worth checking the main shut-off before assuming a break.
Why is the water dirty when it comes back on?
Restored supply disturbs sediment in the lines and pushes trapped air through. Running a cold tap until it clears usually resolves it. If a boil-water notice is in effect, follow the utility's instructions before drinking or cooking with it.
Sources
- Making water safe in an emergency — CDC
- Emergency disinfection of drinking water — U.S. EPA
- Fix a Leak Week — finding and fixing household leaks — U.S. EPA WaterSense
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