Few things are more frustrating than turning on your bathroom faucet and realizing that no water is coming out. Whether it is a slow drip, weak pressure, or no flow at all, this issue can quickly disrupt your daily routine. From brushing your teeth to washing your hands, running water is something most of us take for granted until it suddenly stops.
At Larratt Bros Plumbing, we understand how inconvenient and stressful plumbing problems can be. Founded in 1990 by Rob and Steve Larratt, our company has proudly served the Bay Area for more than 30 years. We specialize in a full range of plumbing services including Plumbing Repairs, Leak Detection, Water Heater Repair & Installation, Toilet Repair & Installation, and more. Our experience allows us to diagnose and fix water flow problems efficiently and safely.
In this article, we will explore the common reasons why there may be no water coming out of your bathroom faucet, how to identify related plumbing issues, and the best steps to restore water flow. We will also answer some of the most frequent questions homeowners ask, such as:
- Why is there no water coming out of my bathroom faucet?
- Why is my bathroom tap not letting water out?
- Why is there no water coming out of my shower faucet?
- How to fix water not flowing?
- How to clear a clogged faucet line?
- Why did my water just randomly stop working?
By the end of this guide, you will have a better understanding of what causes water flow issues in your faucets, sinks, and showers, and when it is time to call a trusted plumbing professional like Larratt Bros Plumbing.
Common Reasons Why There’s No Water Coming Out of Your
When there is no water coming out of your bathroom faucet, it usually means something is preventing the normal flow of water through your plumbing system. Some causes are minor and can be fixed easily, while others require professional Plumbing Repairs from an experienced plumber. Below are the most common reasons why your faucet may not be running properly.

Clogged Aerator or Faucet Line
The aerator is a small screen attached to the tip of your faucet. Over time, mineral deposits, sediment, or debris can build up and block water flow. This is especially common in areas with hard water. Unscrewing and cleaning the aerator with vinegar may restore water flow. However, if the clog extends deeper into the faucet line, you may need professional help to clear the drain or line properly.
Shut-Off Valve Is Closed
Each sink or faucet has shut-off valves located underneath it. If you recently had plumbing work done or moved things under the sink, the valve might have been accidentally turned off. Turn the valve counterclockwise to ensure it is fully open.
Frozen or Burst Pipes
In colder months, water inside your pipes can freeze, preventing it from flowing to your bathroom faucet. As the water expands, it can also cause pipes to burst, leading to leaks and potential water damage. In such cases, it is best to contact a professional for Leak Detection and pipe repair.
Sediment Buildup or Corrosion in Pipes
Over time, minerals and rust can accumulate inside your water lines, especially if your plumbing system is older. This buildup can narrow the passageway for water, reducing or stopping the flow entirely. Regular maintenance and Water Treatment & Purification services can help prevent these issues from developing.
Problems with the Main Water Supply Line
If there is no water coming out of multiple fixtures, such as your sinks, bathtubs, or showers, the issue may not be isolated to one faucet. A break or blockage in the main water supply line or sewers can interrupt water flow to your entire home. In this case, professional Plumbing Repairs and inspection are necessary to locate and resolve the problem safely.
Leaks in the Plumbing System
Even a small leak in your plumbing can lead to reduced or no water pressure in certain fixtures. Hidden leaks are not always visible, especially if they occur behind walls or under floors. Leak Detection specialists from Larratt Bros Plumbing can locate and repair these leaks before they cause major damage to your home.
Understanding these potential causes is the first step toward fixing the problem. In the next section, we will look specifically at what to do if your bathroom tap is not letting water out and how it differs from other water flow issues.
Why Is My Bathroom Tap Not Letting Water Out?

If your bathroom tap is not letting water out, it can be more than just an inconvenience—it may signal an underlying plumbing issue that needs attention. While some problems can be resolved with simple adjustments, others require professional Plumbing Repairs to prevent further damage.
Here are the most common reasons your tap may not be working properly:
1. Internal Faucet Problems
Over time, the internal components of your faucet, such as cartridges, washers, or seals, can wear out. When these parts are damaged or blocked by sediment, the faucet may stop delivering water completely. Replacing worn components or cleaning the internal parts can often restore normal flow.
2. Blocked Supply Lines
The water supply lines that connect your tap to the main plumbing system can become clogged with mineral deposits, rust, or debris. These blockages reduce or stop water flow. In some cases, cleaning the lines may solve the issue, but professional inspection ensures the clog is completely removed.
3. Closed or Partially Closed Shut-Off Valves
Sometimes the simplest explanation is the correct one. Check the shut-off valves under the sink to make sure they are fully open. A valve that is partially closed can reduce water flow or stop it entirely.
4. Water Pressure Issues
Low water pressure from your home’s plumbing system can prevent the tap from functioning correctly. This may be caused by issues with drains, leaks, or the main water supply. A plumber can diagnose and correct pressure problems to ensure all your sinks and faucets operate properly.
5. Sewer or Drain Problems
Although less common, a problem in your sewer or drainage system can affect how your tap functions. If wastewater is backing up, it can create pressure problems that impact water flow. Professional inspection and cleaning may be necessary to resolve the issue.
6. Signs It’s Time to Call a Professional
If you’ve tried basic troubleshooting and your tap still isn’t letting water out, it’s important to contact an experienced plumber. Larratt Bros Plumbing can provide:
- Comprehensive Leak Detection
- Faucet and supply line repair
- Plumbing Repairs for more complex issues
- Preventive services like Water Treatment & Purification to avoid future blockages
Addressing these issues promptly can prevent further damage to your home and ensure your bathroom faucets, sinks, and showers function smoothly.
No Water Coming Out of Shower Faucet: What It Means
When water stops flowing from your shower faucet, it can be particularly frustrating, as it affects daily routines like bathing and washing. The causes for a shower faucet not producing water are often similar to those of a bathroom sink, but there are a few issues that are more specific to showers and bathtubs. Understanding these causes can help you determine whether a simple fix is possible or if professional Plumbing Repairs are needed.
Diverter Valve Problems
Many showers are connected to a bathtub faucet through a diverter valve. This valve directs water to either the tub or the showerhead. If the diverter is faulty or clogged, water may not flow to the shower at all. Replacing or repairing the diverter can restore proper water flow.
Sediment Buildup from the Water Heater
If your Water Heater has accumulated sediment over time, it can reduce water flow to your shower and other fixtures. This is especially common in homes with older water heaters or hard water. Professional Water Heater Repair & Installation can remove buildup and improve water pressure.
Blocked Shower Lines or Showerhead
Mineral deposits and debris can clog the showerhead or the internal pipes leading to it. Cleaning or replacing the showerhead often resolves the problem, but stubborn blockages deeper in the line may require professional attention.
Plumbing Leaks or Pipe Issues
Leaks in your shower lines or main plumbing system can reduce or stop water flow. Hidden leaks behind walls or under floors can be difficult to detect without specialized Leak Detection equipment. Addressing leaks early prevents further damage and ensures reliable water flow.
Water Supply or Pressure Problems
If multiple fixtures, including your sinks and toilets, are experiencing low or no water flow, the issue may be with the main water supply or a drain problem affecting water pressure. A licensed plumber can identify and fix supply line issues, ensuring consistent water delivery throughout your home.
When to Call a Professional
While some issues like a clogged showerhead can be handled by homeowners, problems involving valves, hidden leaks, or the water heater often require professional expertise. Larratt Bros Plumbing offers comprehensive services including Plumbing Repairs, Leak Detection, and Water Heater Repair & Installation to restore full water flow to your showers, bathtubs, and other fixtures.
Ensuring your shower functions properly is essential for daily comfort and hygiene. In the next section, we will cover how to fix water not flowing, with practical steps homeowners can take before calling a plumber.
How to Fix Water Not Flowing
Experiencing no water flow in your bathroom faucet, shower, or other fixtures can be alarming. While some problems require professional attention, there are several steps homeowners can take to identify and possibly fix the issue before calling a plumber.

These steps also help you determine whether the problem is isolated to one fixture or affecting your entire plumbing system.
1. Check Shut-Off Valves
Start by inspecting the shut-off valves under your sinks or near the affected fixtures. Sometimes valves are partially or fully closed during maintenance or renovations. Turn the valve counterclockwise to open it fully. If the water starts flowing, the problem was simply a closed valve.
2. Inspect Faucet Aerators and Showerheads
Mineral deposits, rust, or debris can clog faucet aerators and showerheads, restricting water flow. Unscrew the aerator or showerhead, soak it in vinegar to dissolve buildup, and rinse thoroughly. This often restores water flow for both faucets and showers.
3. Examine Other Fixtures
Check other sinks, toilets, bathtubs, or showers in your home. If multiple fixtures are affected, the problem may lie in your main water supply or drain system rather than an individual faucet.
4. Look for Visible Leaks or Pipe Damage
Inspect exposed pipes for signs of leaks, corrosion, or damage. Even a small leak can reduce water pressure significantly. If you notice any signs of leaking, it’s important to schedule professional Leak Detection and Plumbing Repairs immediately to prevent further damage.
5. Flush Clogged Lines
If water is not flowing due to a minor clog, you may be able to flush the line by turning off the water supply, removing the faucet or showerhead, and letting water run through the pipes briefly after reconnecting. For deeper blockages, professional cleaning may be necessary.
6. Consider Water Heater or Pressure Issues
For hot water problems, check your Water Heater. Sediment buildup or mechanical issues can reduce or stop hot water flow to your showers and sinks. A licensed plumber can perform Water Heater Repair & Installation to restore proper function. Low water pressure throughout your home may also indicate a larger issue with the main water supply or sewers, which requires professional intervention.
7. Know When to Call a Professional
If these steps do not restore water flow, or if you encounter signs of hidden leaks, corroded pipes, or complex plumbing issues, it’s time to contact a professional. Larratt Bros Plumbing specializes in:
- Comprehensive Plumbing Repairs
- Leak Detection and pipe repair
- Maintenance for faucets, sinks, toilets, bathtubs, and showers
- Water Heater Repair & Installation
- Cleaning and maintenance for drains and sewers
Attempting complex repairs without the proper experience can make the problem worse. Relying on trusted plumbing professionals ensures that your home’s water supply is safe, reliable, and fully restored.
How to Clear a Clogged Faucet Line
A clogged faucet line is one of the most common reasons for no water flow in bathroom faucets, kitchen sinks, or even showers. While minor clogs can sometimes be addressed at home, more stubborn blockages often require professional intervention. Understanding the causes and methods for clearing clogs can help restore normal water flow and prevent future plumbing issues.
Identify the Source of the Clog
Before attempting to clear a clog, determine whether the blockage is in the faucet itself, the supply line, or further back in the plumbing system:
- Faucet aerator: Mineral deposits or debris can block the screen.
- Supply line: Sediment buildup or corrosion may restrict water flow.
- Main line or drain: More serious clogs in drains or sewers can affect multiple fixtures.
Clean the Faucet Aerator
- Unscrew the aerator at the tip of the faucet.
- Soak it in a mixture of vinegar and water for 30–60 minutes to dissolve mineral buildup.
- Rinse thoroughly and reattach.
This simple step often restores water flow in faucets and sinks.
Flush the Supply Line
- Turn off the water supply to the faucet.
- Disconnect the supply line and run water through it into a bucket to flush out debris.
- Reconnect the line and check if water flow is restored.
This method works for minor blockages but may not remove stubborn sediment.
Use a Plumber’s Snake or Flexible Brush
For deeper clogs within the faucet or pipes:
- A flexible brush or plumber’s snake can reach and dislodge mineral deposits or debris.
- Be gentle to avoid damaging the plumbing or faucet components.
Prevent Future Clogs
- Regularly clean faucet aerators and showerheads.
- Install a Water Treatment & Purification system if your water is high in minerals.
- Schedule periodic inspections of drains, faucets, and water lines with a professional plumber.
When to Call a Professional
Some clogs are too stubborn or deep in the plumbing system to be handled safely at home. Larratt Bros Plumbing offers:
- Expert clearing of clogged faucets, sinks, and showers
- Plumbing Repairs for damaged or corroded lines
- Maintenance of drains and sewers to prevent future blockages
- Professional installation of Water Treatment & Purification systems
Addressing clogs promptly ensures consistent water flow and reduces the risk of leaks, damage, or more serious plumbing issues.
Why Did My Water Just Randomly Stop Working?

Sometimes, water stops flowing unexpectedly, leaving you wondering why your bathroom faucets, sinks, showers, or even toilets suddenly have no water. While a sudden water outage can feel alarming, understanding the common causes can help you determine the best course of action.
1. Main Water Supply Issues
If water has stopped flowing to multiple fixtures in your home, the problem may lie with the main water supply. This could be due to:
- A temporary shutdown by the local water utility for maintenance or repairs
- A broken or blocked main supply line
- Issues with a water meter or shut-off valve
In these cases, contacting your local water provider or a professional plumber is often necessary.
2. Plumbing System Leaks
Hidden leaks in your plumbing system can cause sudden drops in water flow. Even if water continues to run somewhere else in the house, leaks in drains, faucets, or behind walls may prevent adequate water pressure from reaching your bathroom fixtures. Professional Leak Detection services can quickly locate and fix these issues before they cause further damage.
3. Frozen or Burst Pipes
During cold weather, water in pipes can freeze, blocking the flow to your faucets and showers. Frozen pipes can also burst, leading to major water damage. Signs of frozen pipes include unusually low water pressure, ice visible on exposed pipes, or a complete lack of water in certain areas of the home. Immediate professional assistance is recommended.
4. Water Heater Problems
If hot water suddenly stops flowing, it may be due to an issue with your Water Heater. Sediment buildup, a faulty heating element, or a broken valve can interrupt hot water supply to your bathtubs, showers, or sinks. Licensed plumbers can provide Water Heater Repair & Installation to restore reliable hot water.
5. Clogged or Corroded Pipes
Over time, mineral deposits, rust, or debris can accumulate in your plumbing system. This can suddenly restrict or completely stop water flow. Regular maintenance, including pipe inspections and Water Treatment & Purification, can prevent these issues.
6. When to Call Larratt Bros Plumbing
Sudden water outages can be caused by a variety of factors, from utility issues to hidden leaks and clogged lines. Larratt Bros Plumbing offers:
- Comprehensive Plumbing Repairs for any water flow problems
- Expert Leak Detection to find hidden leaks quickly
- Maintenance and repair of faucets, sinks, toilets, showers, and bathtubs
- Professional clearing of drains and sewers to prevent blockages
- Water Heater Repair & Installation to ensure consistent hot water
By addressing the problem promptly, you can restore water flow safely and prevent costly damage to your home.
Keeping Your Water Flowing Smoothly
No water coming out of a bathroom faucet or other fixtures is not only inconvenient but can also signal a larger plumbing issue. From faucets and sinks to showers, bathtubs, and toilets, understanding the common causes of water flow problems is essential for maintaining a functional and safe home.
Some key takeaways include:
- Check basic issues first: Ensure shut-off valves are open and faucet aerators or showerheads are not clogged.
- Know the warning signs: Sudden water outages, low pressure, or leaks may indicate problems in your drains, sewers, or water supply lines.
- Preventative maintenance matters: Regular inspections, Water Treatment & Purification, and cleaning of faucets and fixtures can help avoid blockages and corrosion.
- Call a professional when needed: Complex issues such as hidden leaks, burst pipes, or water heater problems require expert Plumbing Repairs, Leak Detection, and Water Heater Repair & Installation.
At Larratt Bros Plumbing, we bring over 30 years of experience to every job, ensuring that all plumbing issues—from routine maintenance to large-scale repairs—are handled efficiently and reliably. Whether it’s restoring water flow to a single faucet or performing full-scale drain and sewer maintenance, our team is dedicated to keeping your home’s plumbing system running smoothly.
Don’t let water flow problems disrupt your day. Contact Larratt Bros Plumbing today for fast, reliable service. Our experienced team can diagnose the issue, provide professional Plumbing Repairs, and ensure your sinks, showers, bathtubs, toilets, and faucets are working perfectly. Call us now at (650) 873-5794 or schedule an appointment online to get your water flowing again!




