Worn cartridge, single-handle valves
On most modern single-handle valves, a worn cartridge is an inexpensive part and a repair from the front. No tile removal, no wall opening. This is the best-case fix.
Shower & Bathtub Repair
Shower and Bathtub Repair for East Metro and St. Croix Valley Homes
Leaking shower valve, weak pressure, or a dripping tub spout? Twin City Pipeworks repairs showers and bathtubs across the east metro. Licensed MN plumber, 1-year warranty. Book online.
Prefer to call or text? 651-247-4495
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About Twin City Pipeworks
Why Homeowners Trust Us for Shower & Bathtub Repair
Your shower is leaking, dripping, or barely pushing water, and you need shower and bathtub repair from a licensed plumber who won't jump straight to tearing open the wall. Here's the thing most homeowners in this region don't know: whether your fix is a cheap cartridge or a full valve-body swap depends almost entirely on when your house was built. Twin City Pipeworks diagnoses which one it actually is before quoting, because a 1954 Stillwater shower and a newer Woodbury build fail in completely different ways. Dave has been fixing showers across the east metro and St. Croix Valley for 20 years, and every repair carries a 1-year warranty on all work. Book online to get on the schedule, or run a common repair through our instant quote tool.
A dripping shower or tub spout sounds like a minor annoyance until you see the water bill or find soft spots in the wall behind the valve. Most single-handle shower drips come down to a worn cartridge, which is an inexpensive part and a straightforward swap on most modern valves. Older two-handle and three-handle setups, common in homes built before the mid-1990s around this region, more often need seat washers, replacement stems, or a full valve body when the brass has corroded past the point of a rebuild. Cost varies with valve type, brand, and what's actually failing behind the tile. Every job is different, and we give you upfront, per-task pricing before any work begins.
Shower Valve Leaking? Here's How We Repair It
A shower valve leaking behind the wall is the repair we take most seriously, because you often can't see it until damage is already done. The signs to watch for: a spot on the ceiling below an upstairs bathroom, a musty smell near the shower wall, or paint that bubbles on the other side of the valve. When the leak is at the valve itself, the failure is usually a worn cartridge, a cracked O-ring, or a corroded valve body.
We start by identifying the valve brand and type, then figure out whether the leak stops at a serviceable part or runs deeper into the valve body. If it's a cartridge, stem, or seat washer, that's a repair from the front, no tile removal needed. If the body itself is cracked or the leak is inside the wall cavity, that's a bigger job, and if water has been running behind the tile we can also handle hidden leak detection behind walls on the same visit. Book online and we'll get it diagnosed.
Low Water Pressure in the Shower Only
Low water pressure in the shower only, while the rest of your fixtures run fine, almost always points to something at the shower itself rather than your whole plumbing system. The first test takes thirty seconds: run the bathroom sink and the kitchen faucet. If they push normal pressure and only the shower is weak, we're looking at a fixture-level repair, not a supply-side problem.
When pressure is down at the shower alone, here is what we actually find and fix:
- Clogged showerhead. Scale plugs the spray holes and the internal screen. Sometimes we clean it, sometimes it's cheaper to replace the head. This is the number one cause and the quickest fix.
- Scaled or failing cartridge. Inside a single-handle valve, a worn or mineral-packed cartridge chokes flow and often shows up as low pressure plus temperature that drifts hot and cold.
- Clogged flow restrictor. Many modern showerheads have a small restrictor disc that catches sediment and cuts flow to a trickle.
- Corroded galvanized branch line. Plenty of pre-1970 homes around Stillwater and older White Bear Lake neighborhoods still have galvanized steel supply lines that narrow from the inside out. If pressure is dropping at more than just the shower, this is where we look, and it crosses into pipe repair.
We start at the showerhead and work inward until we find the restriction, then give you upfront pricing before any work begins. Ready when you are, book online to get on the schedule.
Dripping Tub Spout Fix
A dripping tub spout is one of the most common and most misdiagnosed repairs we get called for. Water dripping from the spout after you shut the water off means the valve isn't sealing, not that the spout is bad. The spout is just where the leftover water exits. The actual failure is upstream at the valve: a worn cartridge on a single-handle setup, or worn seat washers and stems on an older two- or three-handle valve.
"People swap the spout and the drip comes right back, because the spout was never the problem. The valve is what stopped sealing. We fix the valve, and the drip stops for good."
There's one exception worth knowing. If the drip is coming from where the spout meets the wall, or the diverter tab on top of the spout won't hold water up to the showerhead, the spout itself may need replacing. A shower diverter not working, meaning water keeps running out the tub spout when it should be going up to the shower, is usually a worn diverter inside the spout or a failing diverter valve, and we sort out which on site. Either way we diagnose the real cause first so you're not paying to replace a part that was never the issue. Talk to a licensed plumber about your tub, book online and we'll take a look.
Why Twin City Pipeworks
What Shower and Bathtub Repair Actually Involves
The right shower repair depends entirely on your valve type and what's failing. Here's what drives the difference:
Seat washers and stems, older valves
Older two- and three-handle valves use seat washers and stems. When those corrode, we rebuild with new washers and stems, or replace the valve body if the brass is too far gone.
Scaled showerheads restrict flow
Hard-water scale plugs showerhead spray holes and flow restrictors. Cleaning or replacing the head is often the entire fix for weak shower pressure.
Tub-spout drips start at the valve
A drip from the spout after shutoff is a valve problem, not a spout problem. Replacing the spout alone rarely stops it. We fix the valve that stopped sealing.
Behind-the-wall leaks hide
A leak inside the wall can soak studs and subfloor for weeks before it shows. Bubbling paint or a musty smell near the valve is worth a scheduled visit before the tile has to come out.
Backed by a 1-year warranty
Every shower and bathtub repair we complete is backed by our 1-year warranty on all work. If it leaks or drips again in the first year, we come back at no charge.
When You Don't Need a Shower Repair Yet
Here's when a shower repair is the wrong call, and we'll say so even though it means we don't do the job. If your shower is part of a full bathroom remodel where the tile is coming out anyway, don't pay to patch the valve now. Wait and have the new valve set as part of the remodel. And if your handle is just a little stiff or the finish is worn but nothing is leaking or losing pressure, you don't need a plumber yet. A stiff handle on a valve that still seals is not a failure. Some shower complaints are genuinely a homeowner fix too: a clogged showerhead often clears with an overnight soak in white vinegar, and that costs you nothing. We'd rather tell you to try that first than charge you for a service call you didn't need. When the drip, leak, or pressure loss doesn't clear on its own, that's when it's worth getting on the schedule.
Our Shower Repair Process
When a Twin City Pipeworks plumber arrives, the first step is always diagnosis before anything gets touched. We identify the valve brand and type, run the shower and tub to see the failure in action, and pin down whether it's a cartridge, a stem and seat, a showerhead, a diverter, or the valve body itself. Then you get a straight, upfront number for the actual repair, not a guess and not a default to the most expensive option. Most cartridge and showerhead repairs wrap up in under an hour. Older three-handle valve rebuilds take longer. We work by appointment Monday through Friday, 8 AM to 5 PM, and we serve the east metro and St. Croix Valley including Woodbury, Stillwater, and Hugo. If you also need bathroom fixture repair while we're there, we can handle that on the same visit. Book online to get on the schedule, or get an instant quote on a common repair with our online tool.
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Ready to Get Your Shower Repaired?
Twin City Pipeworks has repaired showers and bathtubs across the east metro and St. Croix Valley for 20 years. Licensed in Minnesota, fully insured, and backed by a 1-year warranty on all work. Dave works by appointment Monday through Friday, 8 AM to 5 PM. Book online to get on the schedule, or get an instant quote on a common repair with our online tool.
Prefer to call or text? 651-247-4495
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Twin City Pipeworks
Ready to get it fixed right?
Honest, upfront pricing and a 1-year warranty on every job. Book your visit online, or get an instant quote on a common repair.
Prefer to call or text? 651-247-4495
Good to Know
Frequently Asked Questions
What factors affect the cost of a shower cartridge replacement? +
The biggest cost factor is your valve type. On a modern single-handle valve, the cartridge itself is an inexpensive part and the swap is quick, so you're mostly paying for a short service visit. Older two- and three-handle valves take longer because we're replacing seat washers and stems, and if the brass valve body is corroded it may need to be replaced entirely, which is a bigger job. Valve brand matters too, since some proprietary cartridges cost more than generic ones. Access is the last factor: a repair from the front is straightforward, but a leak inside the wall cavity is a different scope. We diagnose the valve type and the actual failure on site, then give you upfront, per-task pricing before any work begins.
Do I need a plumber for a leaking shower? +
Not always. A clogged showerhead often clears with an overnight soak in white vinegar, and that's a free homeowner fix worth trying first. But a leaking valve, a drip that won't stop after the water is off, or low pressure at just the shower usually means a part inside the valve has failed, and getting to it correctly matters. On older two- and three-handle valves especially, the stems and seats can seize in place, and forcing them can crack the valve body and turn a small repair into a wall-opening job. If a simple fix like cleaning the showerhead doesn't solve it, a licensed plumber is the right call, and it's cheaper than the water damage a hidden leak causes over time. We'll tell you honestly when it's a job you could handle yourself.
Why does my tub spout keep dripping after I turn the water off? +
Usually the valve, not the spout. When water keeps dripping from the tub spout after you've shut the shower off, the valve inside the wall has stopped sealing and the spout is just where the leftover water drains out. Replacing the spout alone rarely fixes it. The real repair is a worn cartridge on a single-handle valve, or worn seat washers and stems on an older two- or three-handle valve. The one exception is a leak right where the spout meets the wall, or a diverter tab that won't hold water up to the showerhead, in which case the spout itself may need replacing. We diagnose which it is before quoting so you're not paying to swap a part that was never the problem.
Are older shower valves harder to repair than newer ones? +
In older homes across this region, especially pre-1970 houses around Stillwater, Mahtomedi, and the older White Bear Lake neighborhoods, shower valves are often two- or three-handle designs with compression stems and seat washers. Those parts corrode and seize over decades, so the fix is more often a stem-and-seat rebuild or a full valve-body replacement rather than a simple cartridge swap. Newer homes around Woodbury and Hugo mostly use single-handle cartridge valves, where a leak is frequently just a worn cartridge and a quick repair. We identify your valve type first because it decides the whole repair, and we quote per task after we know what we're actually dealing with.