Plumbing Repair for Faucets, Toilets & Sinks in Duluth, MN & Superior, WI
Twin Ports Contracting & Repair handles small plumbing fixture repairs in Duluth, MN and Superior, WI: faucets, toilets, sinks and under-sink leaks. Describe the fixture and the problem, and your written quote spells out the work and which trade does it before you book.
Twin Ports Contracting & Repair replaces faucets, toilets, sinks and garbage disposals and fixes everyday fixture leaks in Duluth, MN and Superior, WI. Our planning ranges are $130–$260 to replace a faucet and $150–$300 to install a toilet, plus the fixture itself. Every job gets a flat quote before work starts.
Updated by Twin Ports Contracting & Repair, Duluth, MN
Right-Sized Plumbing Help
Tell us what the fixture is doing: a faucet that drips, a toilet that keeps running, or a leak you can see under the sink. Say when it happens and whether you already have a replacement. Then the quote covers the fix the fixture actually needs, which is often a cartridge, a flapper or a supply line rather than a whole new faucet or toilet.
Some plumbing isn't ours to do. Gas lines, water heaters, main drains and emergencies go to a licensed plumber, and a home-repair booking is not an emergency plumbing service. For the rest, we check what your address needs, and who the office requires to pull the permit, before we quote, and the written quote says which trade does each part.
What Our Plumbing Work Covers
- Faucet repair & replacementKitchen, bath, laundry & outdoor spigots
- Toilet repair & replacementRunning, rocking, leaking, or brand new
- Garbage disposal serviceUnjammed, repaired, or replaced
- Leak repairUnder-sink, supply line & trap leaks stopped
- Sink installationKitchen, bath & utility sinks, drop-in or undermount
- Showerhead & fixture upgradesHeads, valve trims, handles & drains
- Supply line & shutoff replacementOld lines swapped before they burst
- P-trap & drain assembly repairSlow drains and leaky slip joints fixed
- Caulk & re-sealTubs, showers & sinks sealed against water damage
- Dishwasher & appliance hookupsWater, drain & mounting done right
- Washing machine connectionsHoses, valves & pans that prevent floods
- Other plumbing servicesBidet seats, water filters, pot fillers — just ask
Common Plumbing Projects
| Project | What's included | Good to know |
|---|---|---|
| Faucet swap | Remove old, install new, new supply lines, test | Bring your own fixture or we'll supply one |
| Running toilet rebuild | Fill valve, flapper, supply, seat as needed | Stops water running into the bowl around the clock |
| Disposal replacement | New unit wired & plumbed, leak-tested | We'll tell you if a reset button saves you the cost |
| Bath re-caulk | Strip old caulk, clean, mildew-resistant re-seal | Cheap insurance against rot and tile damage |
Budgeting for plumbing work? The cost guide and its estimator show planning ranges; the price you approve comes from photos, measurements, access, materials and the finish.
For local prices, see the toilet & faucet replacement cost guide.
Faucet, Toilet, Sink and Garbage Disposal Installation, Repair or Replacement
Most fixture problems start small. A dripping faucet usually needs a new cartridge or washer, a running toilet a fill valve or flapper, and a disposal that hums but won't spin is often jammed. We repair when the fixture is sound and parts are still made, and replace it when they aren't: a faucet whose cartridge is discontinued, a cracked tank or bowl, or a disposal leaking from its own housing. Our planning range for a disposal replacement is $180–$350, plus the unit. If the vanity, sink and toilet are all worn, pricing them together as a bathroom update can beat three separate visits.
Older Duluth and Superior houses add a few twists. Shutoff valves that haven't been turned in decades may not close fully or may start weeping once moved, so we test them first and tell you if one needs replacing. A toilet that rocks has often been leaking at the wax ring into the subfloor, and a ceiling stain below may need drywall repair once the leak is stopped. Replacing a sink faucet or a toilet without altering the piping needs no permit in Duluth or Superior; work that alters the supply, including replacing a sink in Duluth, is done under the required plumbing permit.
Repair, Replace or Call a Specialist? Plumbing Decisions
We handle fixtures and supply-line swaps, with small plumbing done under the required permits. Pipes inside walls and drain or sewer problems go to a licensed plumber.
| What you're seeing | Likely cause | Usual fix | Who handles it |
|---|---|---|---|
| Toilet keeps running | Worn flapper or fill valve | Replace the flapper and fill valve | Us |
| Drip under the sink or at the faucet | Worn cartridge, loose fitting or old supply line | Replace the faucet or supply lines and shutoffs | Us, under the required permits |
| Slow sink drain with gurgling | Clog or a loose or leaky trap | Clear and reseat the trap and drain assembly | Us |
| Wet drywall or ceiling below a bath | Leak behind a wall or in a drain | Locate and stop the leak, then repair the wall | A licensed plumber first, then us |
| Low pressure or rusty water throughout the house | Corroded supply pipe or service line | Replace the failing pipe | A licensed plumber |
| Slow drains in several fixtures or a sewer smell | Main line blockage or failing sewer line | Camera inspection and main-line repair | A licensed plumber or drain specialist |
Cold-Climate Plumbing Sense
Every Northland house has a plumbing winter story. We install frost-proof sillcocks, insulate vulnerable runs we find along the way, and make sure outdoor lines are ready for shutoff season — because a burst pipe in a Duluth January is nobody's idea of a surprise worth having.
Plumbing Repairs in Duluth, Superior and Nearby Towns
Swapping a faucet or resetting a toilet is the same job on either side of the bridge, but the rules around it are not. How much pipe can be replaced without a permit, which office issues plumbing permits, what the water service line is made of and whether the house drains to a sewer or a septic tank all depend on the address. Here is what changes from place to place, with the source for each rule. Wherever you live, we check what the address needs before we quote, and work that alters the piping is done under the required plumbing permit.
Plumbing Repairs in Duluth, MN
Duluth draws a clear line: reconnecting a faucet, toilet, dishwasher or icemaker needs no permit as long as the existing water supply is not altered, while replacing or installing fixtures such as sinks, showers and tubs, a water heater or gas piping does (City of Duluth). The same page says any plumbing that is touched generally has to be brought up to code, so opening an old drain to move a sink can grow the job. If the house has two units or an active rental license, the city notes that a licensed contractor may need to hold the plumbing permit (City of Duluth).
Duluth also has lead in the ground. The city used lead for most small water services until 1927 and is replacing lead and galvanized service lines across the city (City of Duluth). Its Lead Removal Program shows each address’s service-line material in an online Lead Inventory Tracking Tool (City of Duluth). Look yours up before a visit, and if the line into the house is lead, tell us before any work near the meter.
West Duluth, Fond du Lac and Gary–New Duluth
The city’s 2026 lead replacement projects include Denfeld, from 34th to 46th Avenue West, and Spirit Valley, from 46th to 59th Avenue West, plus scattered addresses in Fond du Lac and along Highway 23 in Gary–New Duluth (City of Duluth).
Denfeld and Spirit Valley are two of the seven neighborhoods of West Duluth, where a large share of homes, likely a majority, were built before 1939 (Wikipedia). In houses that age, a faucet swap usually starts with the shutoffs: valves that have not turned in decades may not close or may weep once moved, so we test them first and tell you before anything is cut.
Plumbing Repairs in Superior, WI
Superior’s Permits Not Required list is unusually specific: no permit to replace a sink faucet or reset a toilet when the piping is not altered, to replace the working parts inside a toilet, faucet or valve, or to repair damaged supply and drain pipe up to 10 feet or six fittings (City of Superior).
Beyond that, plumbing work needs a city permit (City of Superior). Wisconsin law says no one may work at plumbing without a state license, with an exception for an owner working in the one-family home they own and live in (Wis. Stat. 145.06), so we confirm who handles any piping change before we quote.
The water side is different too. Superior is the only community in Wisconsin with a privately owned water utility (WPR), and Superior Water, Light & Power posts a service line inventory map showing the pipe material at each home (SWL&P). The city and the utility begin replacing customer-owned lead lines in 2026 in Midtown, between Belknap and North 34th Street and Hammond and Elmira avenues, with every replacement due by 2037 (Superior Lead Service Line Replacement Project). In the Village of Superior, permits go through the village office instead (Village of Superior).
Proctor, Hermantown and Rice Lake
Proctor’s permit rules cover installing, altering, repairing or replacing any plumbing system, with the State of Minnesota as the electrical inspector (City of Proctor), and its FAQ adds that owners may do their own plumbing only in a building they occupy; otherwise a licensed plumber does it, with a plumbing permit either way (City of Proctor).
A Proctor rental owner can’t take that work on personally, and we confirm what the city needs before quoting. Hermantown homes are younger, with a median build year of 1993 against 1951 in Duluth (Census Reporter), so decades-old seized shutoffs are less likely there. Rice Lake is its own city with its own permit office.
Septic Homes in the Townships Around Duluth
Past the city sewer lines, a house drains to its own septic system, and St. Louis County’s Onsite Wastewater Division administers those systems throughout the county (St. Louis County). On septic, the fixture advice changes: the University of Minnesota’s septic program says not to use a garbage disposal, to repair leaky faucets and fixtures immediately, and that excess water entering the system is the most common cause of failure (UMN Onsite Sewage Treatment Program).
So if your home in Lakewood, Pike Lake, Saginaw, Fredenberg or Eldes Corner is on septic, a running toilet is a drain-field problem, not just a water bill, and we talk through a disposal before installing one.
Cloquet and Esko
The Town of Thomson, which covers Esko and Harney, issues its own building, plumbing and HVAC, septic and zoning permits, with electrical permits through the state inspector, so a plumbing change there goes to the township rather than the county. In Cloquet, Carlton and Scanlon, the city handles permits while septic permits still go through Carlton County. In rural Carlton County around Mahtowa, any structure with pressurized water must be connected to a compliant septic system (Carlton County), which matters if you want a sink in a garage or shop.
Town of Superior and Parkland
Outside the city, Town of Superior communities such as Riverview, Boylston and Dewey, and Town of Parkland places like South Range and Cutter, fall under Douglas County, which requires a county septic permit for a new home unless it is on sewer (Douglas County). On a septic home there, the same disposal and leak advice applies. Sunnyside straddles the Towns of Superior and Parkland (Wikipedia), so the town follows the address, and Oliver is an incorporated village with its own government (Wikipedia); confirm the inspector with the village before any piping changes.
Unsure who issues permits where you live? The Minnesota and Wisconsin office lists cover each town's office, its phone number and what it exempts from a permit.
Getting a Plumbing Quote and How the Job Runs
What to Send for a Faucet, Toilet or Sink Quote
A few phone photos cover most of what a fixture quote needs. Take one of the faucet, toilet or disposal, then open the cabinet doors and photograph the shutoff valves, supply lines and drain underneath. Send the brand if you can find it; toilets often have it stamped inside the tank. If you've already bought the replacement, include the model or a link. Tell us when the problem shows up: a steady drip, a leak only while the water runs, or a toilet that refills on its own.
Before requesting a quote, include: Photos of the fixture and the cabinet under it; Brand, or the model you've already bought; When it drips, leaks or runs. The repair-list planning guide has a simple method for gathering these details.
How a Plumbing Job Works
- Send the details. Use the quote form, or call or text (715) 919-7956, and include photos and rough measurements for the plumbing job.
- Get a flat written quote. The quote is one flat price in writing, and a visit, if the job needs one, costs $95 and is waived once you approve the work.
- Pick a day. The schedule follows your calendar, not ours.
- Work done, then a walkthrough. The last step is a walkthrough of the finished plumbing work; the workmanship is guaranteed in writing, and if it fails we return and redo it at no charge.
Plumbing Questions
When do I need a licensed plumber instead of you?
When the job goes past the fixture. Gas lines, water heaters, main drains, sewer lines and pipe inside the walls go to a licensed plumber, and some fixture work needs one too, depending on your town's rules and whether the piping changes. For fixture work, we check what your address needs, and who the office requires to pull the permit, before we quote. Our licensing guide covers the background.
Can you fix a leak under my kitchen sink today?
Call (715) 919-7956 to describe the leak and ask what's open; we don't promise same-day or emergency plumbing service. Until it's fixed, close the shutoff valves under the sink and set a pan under the drip. If water is running and the shutoffs won't close, shut the main and call an emergency plumber rather than waiting on a quote.
Should I buy the faucet or do you?
Either works. If you buy it, keep the box and receipt until it's installed and tested, in case the faucet turns out to be defective. If we supply it, the receipt goes on your bill, and we pick a model whose replacement cartridges and parts are easy to find, not an off-brand faucet that's hard to repair later.
How long does a faucet or toilet repair take in Duluth?
A typical sequence runs finding the cause, shutting off the supply, replacing the worn part or fixture, then testing for leaks. The waiting is usually in parts, since an older fixture may need a part that has to be ordered, and in any permit review when the work alters the water supply. Reconnecting a faucet or toilet without altering the supply needs no plumbing permit under the City of Duluth. The written quote spells out the schedule.
Can I replace my own toilet?
Yes, if you're comfortable lifting a heavy, fragile fixture and setting it on a new wax ring without rocking. A straight swap needs no permit in Duluth if the water supply isn't altered, or in Superior if the piping isn't altered (permit guide). The trouble spots are a shutoff valve that won't close, a broken flange and a soft floor under the old toilet. If you'd rather hand it off, our toilet installation price includes hauling the old one away, and the flat written quote lists any flange or floor repair separately.
Do I need a plumber to change a faucet?
Not for a like-for-like swap on the existing supply lines; neither Duluth nor Superior requires a permit for it. It is a manageable DIY job with a basin wrench and some patience. It stops being a simple swap when the shutoffs are seized, the new faucet needs a different number of sink holes, or the supply piping has to change, and that work is done under the required plumbing permit. Our planning range for a faucet replacement is $130–$260, plus the faucet.
Is it cheaper to hire a handyman or a plumber to replace a toilet or faucet?
For a straight swap, compare flat quotes rather than titles. Our planning ranges are $150–$300 for a toilet and $130–$260 for a faucet, fixture not included, and bundling both with other small jobs in one visit spreads the trip. Anything that alters the piping is done under the required plumbing permit, and water heaters, gas lines, main drains and emergencies belong with a licensed plumber from the start. Our licensing guide explains the rules.
Does water at the base of the toilet mean the toilet needs replacing?
Usually not. Water at the base usually comes from a failed wax ring, loose floor bolts that let the toilet rock, a dripping supply connection, or a tank that sweats in humid summer weather. Those are repairs: we pull the toilet, check the flange and floor, and reset it on a new seal. Replacement makes sense when the tank or bowl itself is cracked. Don't wait on it, since a slow leak at the base rots the subfloor and stains the ceiling below.
What does it cost to replace a broken toilet flange?
It's quoted as a line on the toilet job, because nobody can see the flange until the toilet comes up. A cracked flange ring can often take a metal repair ring or a bolt-down repair flange without cutting into the drain pipe. If the drain itself needs cutting or replacing, that part is done under the required plumbing permit, and a subfloor rotted by an old leak is carpentry. Our toilet installation planning range is $150–$300, with flange work priced on top.
What should I measure before buying a replacement toilet?
Measure the rough-in: the distance from the finished wall behind the toilet to the center of the floor bolts. American Standard says most of its toilets are built for a 12-inch rough-in, with 10-inch models for when the wall is too close and 14-inch models for a wide gap (sizing guide); older Duluth and Superior homes turn up both. The wrong size either won't fit or sits far off the wall. Also check the space to a vanity or side wall, the bowl shape you want, and seat height.
How high should a toilet be after hip or knee replacement?
Follow your surgeon or occupational therapist first; they may prescribe a raised seat or a toilet safety frame for the first weeks. For a permanent change, a comfort-height toilet puts the seat in the 17- to 19-inch range the U.S. Access Board uses for accessible toilets (Access Board toilet guide), which is a reference point for a home, not a requirement. A grab bar beside it helps too; see safety and mobility.
Can you replace just the tank on a toilet?
Yes, if a matching tank is still available for your bowl. American Standard says a tank or bowl can be replaced on its own when the specific or a compatible model is available (American Standard), but most of its tanks and bowls are built as a set, and a mismatched pair may not flush at all; a 3.5-gallon tank won't work on a 1.6-gallon bowl (American Standard). Have your tank and bowl model numbers in hand before shopping. If no matching tank exists, the whole toilet gets replaced.
What tools do you need to replace a faucet?
Moen's list is a flashlight, screwdrivers, an adjustable wrench, channel locks or pliers, safety glasses and a basin wrench, plus new flexible supply lines, plumber's putty, silicone sealant and thread seal tape, and it says to check your faucet's box for anything that model needs (Moen). The basin wrench is the specialty tool here: it reaches the mounting nuts behind the sink bowl. Test the shutoff valves before you start; if they won't close, they get replaced first.
Will a faucet cover keep an outdoor faucet from freezing?
It helps, but it isn't the main protection. The Red Cross lists outdoor hose bibs among the pipes that freeze most often and says to remove and drain hoses, close the inside valve that feeds each outdoor faucet, and open the outside faucet so the line can drain (American Red Cross). A foam cover then insulates the part outside the wall. For an old faucet that keeps freezing through a Duluth winter, Illinois Extension suggests swapping in a frost-proof spigot (Illinois Extension).
How do I know what size replacement toilet seat to buy?
Measure from the midpoint between the two seat bolts to the outside front edge of the bowl rim. Bemis, the seat maker, says a round bowl measures about 16½ inches and an elongated bowl about 18½, and that the bolts are usually 5½ inches apart (Bemis). Buy the shape that matches, since a round seat on an elongated bowl leaves the front of the rim exposed. For someone with limited mobility, a raised seat or a comfort-height toilet can help; see safety and mobility.
Why does my toilet keep running after I replaced the flapper?
Usually the water level is set too high or the new flapper isn't sealing. If water trickles into the overflow tube, lower the fill valve's float until the water sits at the marked line, or about an inch below the top of the tube. If it doesn't, give the chain a little slack and check that the flapper matches your flush valve, since 2-inch and 3-inch valves take different sizes. A pitted valve seat will leak past any flapper; then the flush valve needs replacing.
These answers also sit in the Plumbing section of our FAQ, alongside questions on pricing, scheduling and coverage.
Our Service Area: Towns and Neighborhoods
The same plumbing service covers every town listed here, from the Twin Ports out to the small communities beyond.
Duluth neighborhoods:
Superior neighborhoods:
Outside these cities? The surrounding town notes list the other communities we serve for plumbing work, and the Minnesota and Wisconsin town guides have a project checklist for each. The cost guide and pricing page cover budget and the quote process.
Town checklists for plumbing projects
Project notes for towns across the service area:
Services That Pair With Plumbing Work
Hear a Drip? Stop Feeding It Money.
Leaks and runs only get more expensive. Get a quote — or call now if water is actively going where it shouldn't.