Toilet Repair and Replacement in Mukilteo, WA
Running, weeping and rocking toilets rebuilt, reset or replaced in Harbour Pointe, Old Town and every neighborhood between, by the licensed plumbers on 5th Street
Stollwerck Plumbing & Sewer repairs, resets and replaces toilets across Mukilteo from our shop in Old Town, usually the same day you call. A toilet that runs or will not fill is rebuilt and dye tested before we leave, a leak at the base is a pull-and-reset on a new seal, and a cracked or worn-out toilet is replaced with one we supply or one you bought.
Real Toilet Work in Mukilteo
In August 2026 the owners of a Harbour Pointe condo called because the tank on their Kohler toilet would not fill. Chase found the fill valve and the flush valve both at the end of their life and did a standard rebuild, fitting a new fill valve and an OEM Kohler gasket under the flush valve. Then he did what we do on every rebuild: he put dye in the tank and left it alone. Fifteen minutes later a tint was showing in the bowl, which meant the canister flush valve's seat was still letting water past. He explained that the next step would be a new flush tower, and the owners decided they would rather plan a replacement toilet than keep spending on this one, so Chase measured the rough-in at twelve inches for the new fixture before he left.
In May, Logan and Chase took a call from a house near Goat Trail where a stain was spreading on the garage ceiling directly under the master toilet. The homeowner had augered the toilet three weeks before, and a failed wax ring was the likely cause, but rather than guess they opened a small square in the garage ceiling and watched the flange and subfloor from below while the toilet was flushed. Water appeared above the subfloor with each flush. A first reset produced the same result, so the toilet came off again for a thorough inspection: no crack in the porcelain, no break in the flange, water only on the horn. Set a second time, it was flushed fifteen times without a drop, then sealed.
In April, at a house in the Smugglers Cove area, Chase installed two one-piece toilets the homeowner had bought for the upstairs master and guest baths. Both needed shimming because the tile floor was not flat, each was flushed ten times with no water at the base, and the existing angle stops were kept at the owner's request because they were sound.
What We Do for Mukilteo Toilets
Tank Rebuilds
A toilet that runs, refills on its own or will not fill gets a new fill valve, flapper or canister seal and flush valve gasket, the water level set, and a dye test before we leave. Last week Logan rebuilt a Harbour Pointe toilet whose Mansfield tank seal had failed, and the dye test was the last thing he did before packing up.
Pull-and-Reset on a Leaking Base
Water at the base, a rocking bowl or a stain on the ceiling below means the wax ring has failed. We pull the toilet, check the flange and the floor, set it on a new seal with new bolts, flush it repeatedly and seal the base.
Replacement, Including Comfort Height
When a toilet is cracked, thirty years old or simply not worth another rebuild, we replace it with a toilet we supply or one you chose. Comfort-height toilets are taller than the fixtures they replace, which is why Logan warned a homeowner off the Speedway, before starting, that the hutch over the old tank might not fit over the new one.
Clogs a Plunger Will Not Move
A closet auger clears most of them in minutes. At a house near Goat Trail, Logan and Connor broke a clog in the first two feet, ran the auger out its full length, then flushed five more times, twice with simulated solids, to prove the line was clear.
Angle Stops and Supply Lines
The shutoff behind the toilet is often the oldest valve in the house. We replace stops that will not close and supply lines that have gone brittle. In that Harbour Pointe condo the stubs behind both toilets were polybutylene, the grey plastic pipe common in 1980s and 1990s construction, which calls for a careful hand when a stop comes off.
Mukilteo-Specific Considerations
Harbour Pointe Condos: The Leak Shows Up Downstairs
Harbour Pointe went up from the 1980s on, and a good share of it is stacked condos and townhomes. A wax ring that fails in one unit shows up as a stain on the ceiling of the unit below, so the first call about a toilet often comes from a neighbor. The supply stubs in those units are frequently polybutylene, and the rough-ins are usually the standard twelve inches, which matters when you are shopping for a replacement.
Bathrooms Over Garages
Many Mukilteo houses put a bathroom over the garage, and that is where a wax-ring failure announces itself: a stain on the garage ceiling. When the cause is not obvious we open a small square of that ceiling and watch the flange while the toilet is flushed.
Old Town’s Older Floors
The waterfront grid was built out between the 1940s and the 1960s, and under a toilet that has been weeping for years the subfloor can be gone. When we pulled a Harbour Pointe toilet whose linoleum was stained a foot all around, the plywood came apart in Connor and Logan’s hands, and they recommended a flooring contractor replace that section before the toilet went back. In Old Town, where the floors are older still, we look before we set.
Soft Water, So the Rubber Goes First
Mukilteo Water & Wastewater District delivers Everett’s water from Spada Lake, and it is soft. Toilets here do not scale up; what fails is the rubber, the flapper, the canister seal and the fill valve diaphragm, which is why a rebuild fixes most running toilets and why we dye test after every one.
The Pressure Reading Comes First
A house running well above 80 psi wears out fill valves and supply lines early, so a pressure reading is part of many of our toilet calls. When the number is high we talk about a pressure-reducing valve before we talk about a third fill valve.
How We Repair a Toilet in Mukilteo
Watch the Tank and Read the Pressure
We watch a full cycle, check where the water level sits against the overflow, and take a pressure reading when the symptoms suggest the house is running high.
Dye Test Before Deciding
Dye in the tank tells us within minutes whether the flush valve is holding. It runs before a rebuild is priced and again after the rebuild is done.
Rebuild, Reset or Replace
Most tanks are rebuilt, most base leaks are reset on a new seal, and a cracked or worn-out toilet is replaced. We say which one you have before we start.
Flush, Then Seal
Ten to fifteen test flushes, every joint checked with the water on, and a bead of sealant at the base.
Toilet Repair FAQ for Mukilteo
Will a toilet leaking at the base in a Harbour Pointe condo show up in the unit below?
Often, yes, and usually before you see anything at the base. A failed wax ring lets each flush push a little water under the toilet and into the floor, and in a stacked building that floor is your neighbor’s ceiling. Call as soon as a stain is mentioned, because a pull-and-reset is a short visit and drywall repair is not.
There is a stain on my garage ceiling under the bathroom. Is it the toilet?
Usually, if the stain sits directly below the toilet. At one Mukilteo house near Goat Trail we opened a small square of the garage ceiling and watched water appear above the subfloor with each flush, which settled it. A stain that grows only when the shower runs points at the tub drain or the valve instead.
The floor feels soft around the toilet in my Mukilteo house. Will you still reset it?
Not onto a rotten subfloor, because a new wax ring cannot seal against wood that crumbles. When Connor and Logan pulled a Harbour Pointe toilet whose linoleum was stained a foot around, the plywood came apart in their hands, so they set the toilet aside and recommended a flooring contractor replace that section first.
I bought my own toilets. Will they sit right on my tile floor?
Yes, if they are set for the floor you actually have. Tile is rarely dead flat, so a one-piece toilet often needs shimming before it stops rocking, then a bead of sealant at the base. At a house in the Smugglers Cove area Chase shimmed two customer-supplied one-piece toilets, flushed each ten times, and left them solid.
Why would you rebuild my toilet and then tell me to replace it?
Because the dye test comes after the rebuild, and sometimes it fails anyway. New fill and flush parts cure a tank that will not fill or stop running, but a worn canister seat or a hairline crack can keep dye bleeding into the bowl. When that happens we say so, price the next step, and let you decide.
Serving Mukilteo From 5th Street
Our shop is in Old Town, so a toilet call in Mukilteo is the shortest drive we make. Harbour Pointe, the Speedway corridor, Goat Trail and Smugglers Cove are all a few minutes apart, and a running toilet can usually be seen the same day. Only the ferry line on the Speedway stretches an arrival, and we build it into the window we give you.
Why Mukilteo Homeowners Choose Us
Licensed Plumbers, Not Contractors
Every person we send is a licensed plumber on our own crew, which matters when the job involves opening a ceiling or judging a subfloor.
Dye Tested Before We Leave
A rebuild is finished when the dye test passes and the water level is set, not when the new parts are in the tank.
A One-Year Guarantee
Our workmanship is guaranteed for a full year on every job, toilets included.
A Toilet That Runs, Rocks or Leaks
Call the office and tell us what the toilet is doing. Most of the time we can tell you whether it is a rebuild, a reset or a replacement before we arrive.