You turn on the kitchen sink, and nothing comes out. Or maybe the upstairs bathroom has suddenly gone dry while every other faucet in the house works just fine. It’s frustrating — and it can feel a little mysterious. The good news? When water stops flowing to just one faucet or one area of your home, the cause is usually one of a handful of well-known plumbing problems.
Here’s a breakdown of what’s likely going on — and what you should do about it.
1. Frozen Water Lines
If you’re in the Fargo or Grand Forks area, this one should be at the top of your list — especially during our brutal North Dakota winters. When temperatures drop hard and fast, pipes that run through exterior walls, unheated crawl spaces, garages, or under sinks near outside-facing walls can freeze solid.
A frozen line will block water flow completely to whatever fixture it feeds. You might notice:
- No water from a single faucet, even though others work fine
- A frost-covered pipe visible under a sink or in the basement
- A strange bulging or crackling in the pipe
What to do: Never use an open flame to thaw a pipe. A hair dryer on low heat or warm towels wrapped around the pipe are safer options. But if you can’t locate the freeze or you suspect the pipe may have already cracked, call a licensed plumber right away. A cracked frozen pipe can cause thousands of dollars in water damage the moment it thaws.
2. A Clogged or Worn Cartridge
Modern faucets use a cartridge — a small internal valve mechanism — to control water flow and temperature. Over time, cartridges can wear out, corrode, or become clogged with mineral deposits (especially if you have hard water, which is very common in our region).
When a cartridge fails, it can restrict or completely cut off water to that faucet. You might experience:
- Reduced or zero water flow from one faucet
- Difficulty turning the handle or getting it to change temperature
- Water that only trickles out even at full pressure
What to do: Cartridge replacement is a relatively straightforward repair for a plumber, but getting the right cartridge for your faucet brand matters. If you’re dealing with hard water that’s constantly clogging fixtures, it may also be worth exploring a water treatment or softening solution to protect your plumbing long-term.
3. A Closed or Partially Closed Shut-Off Valve
Every faucet and fixture in your home should have its own individual shut-off valve — usually located under the sink or behind the toilet. These valves are sometimes accidentally bumped closed during cleaning, a move, or a recent repair. They can also corrode into a partially closed position over time.
Signs this might be your issue:
- Water flow stopped suddenly after recent work was done in that area
- The valve handle is turned perpendicular to the pipe (closed) instead of parallel (open)
- The valve is stiff or difficult to move
What to do: Check under the sink or behind the toilet first. If the valve looks closed, try slowly turning it counterclockwise to open it. If it’s corroded or difficult to turn, don’t force it — you could damage the valve or the line. A plumber can replace it quickly and safely.
4. Localized Pressure Problems
Sometimes water pressure drops in just one area of the house due to a problem specific to that branch of your plumbing. This can be caused by:
- Mineral buildup inside the pipes — especially in older homes with galvanized steel pipes that have corroded over the years
- A partially blocked aerator — the small screen at the tip of your faucet can fill with sediment and restrict flow
- A failing pressure-balancing valve in a shower or bath
- A small leak or crack in a supply line that’s diverting water before it ever reaches the fixture
What to do: Start by unscrewing the aerator from the faucet tip and rinsing it out — this is a quick DIY fix that often restores flow immediately. If the problem persists or if you suspect a leak or corroded pipe, it’s time to bring in a professional before things get worse.
When to Call a Plumber
If you’ve checked the obvious stuff — the shut-off valve, the aerator — and the problem is still there, don’t keep guessing. Plumbing issues that seem minor can turn into expensive repairs if left alone. Call a plumber if:
- You suspect a frozen or burst pipe
- You can’t locate or access the shut-off valve
- Multiple faucets in the same area are affected
- You see signs of water damage, moisture, or staining near the problem area
- The issue keeps coming back
Precision Is Here to Help — 24/7
At Precision, we’ve been solving exactly these kinds of problems for homeowners across Fargo, Grand Forks, and the surrounding communities for over 20 years. Whether it’s a frozen line in January or a mysterious pressure drop in July, our licensed technicians can diagnose and fix it fast — with honest pricing and no surprises.
We offer 24/7 emergency plumbing service because we know plumbing problems don’t wait for business hours.
Fargo: 701-300-8505
Grand Forks: 701-317-9274
Schedule Your Service Online: https://www.precisionpe.com/contact-precision/
Frequently Asked Questions
Why is there no water in just one faucet?
The most common causes are a closed shut-off valve, a clogged or faulty cartridge, mineral buildup in the aerator, or a frozen supply line. In some cases, a localized pressure issue or small leak in that branch of your plumbing may be to blame.
How do I know if my pipe is frozen?
If you have no water from a specific faucet during cold weather and other faucets work normally, a frozen pipe is very likely. You may also notice frost on an exposed pipe or a slight bulge in the line.
Can I fix a frozen pipe myself?
You can attempt to thaw a frozen pipe using a hair dryer on low heat or warm towels — but never use an open flame. If you can’t safely access the pipe, or if you think it may have cracked, call a plumber immediately.
What is a faucet cartridge, and how do I know if it’s bad?
A cartridge is the internal valve in your faucet that controls water flow and temperature. Signs of a failing cartridge include reduced or no flow, difficulty operating the handle, or temperature inconsistency. A licensed plumber can replace it quickly.
How do I increase water pressure to just one faucet?
Start by removing and cleaning the aerator (the small screen at the faucet tip). If that doesn’t help, make sure the shut-off valve under the sink is fully open. Persistent low pressure may indicate a deeper pipe or valve issue requiring a professional inspection.
