Serving Duluth, Superior & nearby Minnesota and Wisconsin towns Mon–Sat 7am–6pm (715) 919-7956

Shower Remodeling & Tub-to-Shower Conversion in Duluth, MN & Superior, WI

Leaking showers traced and fixed, worn grout and dripping valves repaired, and new walk-in showers and tub-to-shower conversions built with real waterproofing behind the tile, all quoted flat before work starts.

Twin Ports Contracting & Repair repairs and remodels showers in Duluth, MN and Superior, WI, from leaks, grout and valves to tub-to-shower conversions and walk-in showers. National guides put shower repair at $100–$700 (Fixr) and a shower remodel at $2,000–$9,000 (HomeAdvisor). Those are national ranges, not our prices; your flat quote is the real number.

Updated by Twin Ports Contracting & Repair, Duluth, MN

Showers & Tubs

Find Where the Water Is Going First

Showers fail in a few predictable ways. Grout cracks and caulk pulls away, a valve starts dripping or can't hold a steady temperature, a tile breaks, or water works its way behind the tile where nobody sees it until a ceiling stains or a floor goes soft. For shower repair in Duluth, MN and Superior, WI, the first job is finding where the water is actually going: the grout and caulk, the valve and spout, the drain, or the pan beneath the floor tile. Then you'll know whether a repair will hold or the shower needs rebuilding.

When a shower needs replacing, we handle shower remodels, tub-to-shower conversions, walk-in and curbless-style showers, new doors, and tub or shower surround replacement. New tile goes over a waterproof layer, because grout alone doesn't keep water out of the walls. You approve a flat written quote before work starts, and our visit fee is waived when you approve the work. Plumbing work is done under the required permits. For the vanity, floor, fan and the rest of the room, see bathroom remodeling in Duluth.

What Our Shower Work Covers

  • Shower leak diagnosisTracing where the water actually escapes
  • RegroutingCracked or crumbling grout replaced
  • RecaulkingCorners and tub edges resealed
  • Cracked tile replacementBroken tiles cut out and replaced
  • Valve and cartridge repairDrips and temperature swings fixed
  • Shower valve replacementNew valve, trim and handle
  • Waterproofing behind tileMembrane over backer board before tiling
  • Tub-to-shower conversionsTub out, walk-in shower in
  • Walk-in showersLow curb, wide opening, glass panel
  • Curbless-style showersLevel or near-level entry where framing allows
  • Shower doorsHinged, sliding or fixed glass
  • Tub and shower surroundsTile or panel walls replaced

Common Shower Projects

Shower project examples: compare the work included and the details to confirm before booking.
ProjectWhat's includedGood to know
Regrout and recaulkFailed grout removed and replaced, corners and tub edge recaulked, tile cleanedOnly lasts if the tile is bonded and the wall behind it is solid and dry
Valve repairLeak traced, cartridge or seals replaced, trim and handle resetCartridge swaps are done from the front, without opening the wall
Tub-to-shower conversionTub out, drain and valve moved, new base, waterproofing, walls and glassNeeds a building permit and a plumbing permit in Duluth
Walk-in shower remodelOld shower torn out, new base or sloped tile floor, waterproofing, tile and glassA curbless entry may mean recessing the floor under the shower

The handyman cost guide shows what moves the price of shower work, and its estimator helps price a list. Your written quote depends on photos, measurements, access, materials and the finish you choose.

For local prices, see the shower remodel cost guide and the tub-to-shower conversion cost guide.

Waterproofing Behind the Tile

Tile and grout shed water, but neither one is waterproof. Grout is porous and develops hairline cracks over time, so a tiled shower relies on the layer behind it: a waterproof membrane over cement board, a foam board system with sealed seams, or, in older showers, a liner under a mortar bed. The floor has to slope to the drain, and the waterproofing has to tie into the drain so water that gets past the grout still ends up there. Niches, benches, inside corners and the valve opening are the weak spots, so they get extra attention.

Some showers were tiled straight over drywall or plaster with nothing waterproof behind them. They can look fine for years while the wall behind soaks up water, and by the time tiles loosen or the ceiling below stains, regrouting won't save them. The fix is taking the walls down to the studs, replacing rotted framing or subfloor, and rebuilding with proper backer board and a membrane before new tile goes up. It costs more than a patch, but it's the difference between a shower that lasts and one that fails again a few winters later.

Tub-to-Shower Remodel in Duluth: What a Conversion Involves

Converting a tub to a shower, or a full tub-to-shower renovation, is more than trading one fixture for another. The tub comes out, the floor under it gets checked for rot from old leaks, the drain usually moves to suit the new base, and the valve often moves up the wall to shower height. Then comes the base, either a molded pan or a tiled floor sloped to the drain, followed by waterproofing, walls and a door or glass panel. In Duluth, the job needs a building permit because a shower is replacing a tub, plus a plumbing permit because it alters the water supply.

Your choices set most of the price. This Old House's 2026 homeowner survey puts a custom tiled shower at $8,500–$10,000, a national figure, not our price. A molded base with panel walls sits toward the low end, and a tiled floor, tiled walls, a bench and frameless glass toward the high end. A low curb or curbless-style entry makes the shower easier to step into. If it's the only tub in the house, think about bathing small children before it goes.

Shower Installation and Shower Door Installation in Duluth and Superior

A bathtub-to-shower conversion is the common version of this job, and shower installation covers three different jobs: setting a new base and walls where a tub or old shower came out, tiling a custom shower over a proper waterproof layer, and hanging a glass door or curtain track once the walls are done. You choose and buy the shower kit, base, tile or door; we do the demolition, framing, waterproofing, tile and installation, and the matching licensed trade handles any change to the supply or drain lines.

The door goes in last, after the tile and grout have cured, because the frame has to be fitted to the finished walls, not the rough ones.

Repair, Replace or Call a Specialist? Shower Repair Decisions

Cracked grout is a repair; water behind the tile is a rebuild. Match what you see below to tell which one you have.

Shower repair and remodel decisions: common symptoms in Duluth and Superior homes, the usual fix, and who does the work.
What you're seeingLikely causeUsual fixWho handles it
Cracked or missing grout, caulk pulling away at the tubAged grout and movement at the jointsRemove and replace grout, recaulk corners and tub edgeUs
Loose or hollow-sounding tile, or soft spots in the wallWater has gotten behind the tileTear out to the studs, rebuild with backer board and membraneUs
Handle drips or the temperature swingsWorn cartridge or sealsReplace the cartridge from the front, without opening the wallUs; a plumber if the valve itself must move
Ceiling stain below the shower, or a soft floor beside itLeak at the pan, drain or supply behind the wallTrace the leak, then repair the pan or rebuild the showerUs for the shower; a licensed plumber for pipe repairs
You want a walk-in shower where the tub is nowTub-to-shower conversionRemove the tub, move drain and valve, build a new baseUs; Duluth requires building and plumbing permits
Rusty or leaking supply pipes behind the shower wallCorroded older supply plumbingReplace the pipe while the wall is openA licensed plumber under the required permits
Moisture keeps returning on a shower along an outside wallCondensation on a cold wall, or hidden moistureCheck insulation and ventilation, then fix the sourceUs

Older Tile, Outside Walls and Two Permit Lists

Showers in older Twin Ports homes come with their own quirks. Older tile was often set in a thick bed of mortar, which lasts but is hard to patch without a visible difference. A shower on an outside wall needs its waterproofing and insulation right, because moisture that gets into a cold wall condenses there, and a valve or supply line in that wall is at risk in a hard freeze.

Permits differ by city. In Duluth, replacing a tub with a shower needs a building permit (City of Duluth), and work that alters the water supply, including replacing or installing a shower, needs a plumbing permit (Duluth residential FAQ). Superior's Permits Not Required list covers wall tile, cement board and replacing a valve's internal parts; for anything more, check with Superior's building inspection office at (715) 395-7288.

Shower Remodeling in Duluth, Superior and Nearby Towns

Whether a shower job needs a permit comes down to two things that change by address: whether the work alters the piping or swaps a tub for a shower, and where the local office draws the line. Duluth, Superior, Proctor and the townships around them each draw it differently, and the house matters too, from old tile over plaster to concrete walls in Morgan Park. Here is what changes by place, with the source for each rule; we check what your address needs before we quote.

Shower Remodeling in Duluth, MN

In Duluth, replacing a tub with a shower needs a building permit (City of Duluth), and any plumbing that alters the water supply, including replacing or installing a shower or tub, needs a plumbing permit (City of Duluth FAQ). Regrouting and recaulking touch no plumbing at all. When a building permit applies, the city asks for a fully dimensioned plan to confirm code-required clearances, which matters when a larger shower or a hinged glass door has to fit beside the toilet and vanity. An owner occupant can do the work on their own single-family home, but the permits still apply.

A shower in a basement bathroom has its own Minnesota number: when an existing basement is altered, the ceiling has to be at least 6 feet 4 inches above a 30-by-30-inch area at the wall where the showerhead goes, where a new house needs 6 feet 8 inches (Minn. R. 1309.0305). Under low basement beams, that measurement decides where the shower can go before anything else is drawn.

Showers in West Duluth's Older Homes and Morgan Park

In West Duluth, likely a majority of homes were built before 1939 (Wikipedia). A tiled shower in a house that age may sit on a thick mortar bed, with old galvanized supply pipes feeding the valve, so a job that starts as regrouting can become a rebuild once the first tiles come off. Painted plaster around the tub brings in the lead rule as well: in homes built before 1978, firms paid to do renovation that disturbs lead-based paint must be EPA- or state-certified and follow lead-safe work practices (EPA).

Morgan Park was built by U.S. Steel as a planned company town and named in 1914 (Wikipedia), and it's known for its concrete houses (Duluth News Tribune). Where the walls or floor are concrete, moving a drain or raising a valve for a tub-to-shower conversion may mean cutting concrete rather than notching wood, and a glass door's hinge side or a grab bar anchors with masonry fasteners instead of into a stud. Send photos of the walls around the tub.

Shower Remodeling in Superior, WI

Superior's Permits Not Required list covers wall tile and the cement board under it, replacing the internal working parts of existing valves, and repairing or replacing up to 10 feet or six fittings of damaged supply and drain piping (City of Superior). A cartridge swap or a regrout fits on that list.

Moving the drain for a tub-to-shower conversion or raising the valve alters the piping, so it goes beyond it, and the city requires building permits for alterations, with 10 business days for review (City of Superior). Wisconsin's Uniform Dwelling Code governs alterations to homes begun on or after June 1, 1980 (SPS 320.03 and 320.04); for an older house, ask the building inspection office which standard it applies.

Shower and Tub-to-Shower Remodeling in Hermantown, Proctor and Rice Lake

In Hermantown, the median home was built in 1993, against 1951 in Duluth (Census Reporter), so the shower may be a one-piece molded unit set before the walls were finished. A one-piece unit usually won't fit back out through the bathroom door, so replacing one means cutting it out and choosing a multi-piece unit or a tiled shower. Hermantown sends all electrical permits and inspections through the state Department of Labor and Industry (City of Hermantown), which covers a new light over the shower, wired by a licensed electrician.

In Proctor, ceramic tile needs no building permit, but shower plumbing takes a plumbing permit whether the owner does it in a building they occupy or a licensed plumber does it (City of Proctor). Rice Lake, organized as a city in 2015 (Wikipedia), issues its own permits, so confirm a Rice Lake shower job with the City of Rice Lake rather than with Duluth. For Hermantown, see the tub-to-shower remodel in Hermantown, MN section.

Shower Remodeling in Esko and the Townships

Thomson Township, which covers Esko and Harney, issues building, plumbing and HVAC permits through an online portal, while electrical permits go to the State of Minnesota's inspector (Town of Thomson). So the plumbing side of a tub-to-shower conversion goes to the township, and a new fan or light over the shower adds the state electrical permit, with the wiring done by a licensed electrician.

In county-zoned townships such as Grand Lake, around Twig, and the townships around Canyon and Cotton farther up Highway 53, St. Louis County does not administer the Minnesota State Building Code, and its land use permits are for building, adding to or reshaping structures (St. Louis County). A shower remodel inside the house isn't on that list. Wiring for a light or fan still needs an electrical permit, and the state's directory shows whether the state or a local office inspects your address (Minnesota DLI).

Showers in Oliver, the Village of Superior and Nearby Towns

Several governments around the city answer shower permit questions for themselves. The Village of Superior lists its own building code inspector (Douglas County), and Oliver is a separate incorporated village (Wikipedia), so confirm its inspector with the village. The Town of Parkland, around South Range and Cutter, adopted the Uniform Dwelling Code and took over inspections in 2005 (Wisconsin DSPS). Douglas County's land use permit is required before construction of any structure (Douglas County); for work inside an existing house, the town or village inspector is the office to ask.

Before a shower job starts, it helps to know the office for your address. The Minnesota and Wisconsin lists give the name, phone number and exemptions for each town.

Getting a Shower Quote and How the Job Runs

What to Send for a Shower Repair or Remodel Quote

Photos tell us most of what we need. Send a wide shot of the whole shower or tub, close-ups of cracked grout, loose tile or failing caulk, and the handle and trim plate so we can identify the valve. If water is showing up somewhere it shouldn't, photograph that spot too, including any stain on the ceiling below. Tell us roughly how old the shower is, whether it's tile or a molded unit, and whether you're hoping to repair it or replace it.

Before requesting a quote, include: A wide photo plus close-ups of the problem; The handle, trim plate and any brand name; Where water shows up outside the shower. For a way to sort and prioritize the details, see the repair-list planning guide.

How a Shower Job Works

  1. Send the details. Send a few photos and a note on the shower work you want done, by form or by text to (715) 919-7956.
  2. Get a flat written quote. You approve one flat price in writing before work starts, and the $95 visit fee, if a visit is needed, is waived when you approve the work.
  3. Pick a day. Choose a date that works for your household and the job is scheduled for it.
  4. Work done, then a walkthrough. When the shower work is done we clean up and walk it through with you, and a written guarantee says we will redo failed workmanship at no charge.

Shower Questions

How can you tell if a shower is leaking behind the tile?

Look outside the shower for the clues. Loose or hollow-sounding tiles, grout that keeps cracking in one spot, peeling paint or soft drywall beside the shower, a musty smell and a stain on the ceiling below all point to water getting past the surface. To find the source, we test one path at a time: drain, valve and supply lines, then walls and floor. A leak that never stops points to the supply side; one that appears only during showers points to the drain, pan or walls.

Is regrouting enough to stop a shower leak?

Only if the tile is still firmly bonded and the wall behind it is solid and dry. Grout fills the joints but isn't waterproof, so a tiled shower depends on the waterproof layer behind it, and new grout over loose tiles or a soaked wall just hides a growing leak. Before regrouting, we press and tap the tiles and check the wall and floor around the shower. Inside corners and the tub or pan joint get caulk, not grout, because those joints move.

Why does my shower keep switching between hot and cold?

Usually the valve. Many single-handle valves have a pressure-balancing part that holds the temperature steady when someone flushes a toilet or runs a sink; when it sticks or wears, the water swings. Older two-handle valves have no such part, so the lasting fix there is a new valve. National guides put a cartridge replacement at $100–$300 (Fixr) or $200–$400 (This Old House), not our prices. Superior's no-permit list includes replacing an existing valve's internal parts.

Can a dripping shower valve be fixed without tearing out tile?

Usually, yes. Most drips come from a worn cartridge or seals, and those come out from the front once the handle and trim plate are off. Replacing the whole valve is bigger, since the valve body is joined to the pipes in the wall; it's reached through the tile opening or from the back of the wall. Nationally, a valve repair runs $75–$250 and a full replacement $200–$650, according to Fixr, not our prices. Valve replacement is plumbing work done under the required permit.

How much does it cost to convert a tub to a shower?

National cost guides disagree: HomeAdvisor puts most tub-to-shower conversions at $1,500–$8,000, while This Old House puts them at $2,000–$12,000. Those are national ranges, not our prices. The spread comes from the choices: a molded base and panel walls cost far less than a tiled floor, tiled walls and frameless glass, and moving the drain, raising the valve or repairing rot under the old tub adds to any of them. In Duluth, plan on a building permit and a plumbing permit. Your quote in writing is the real number.

Can an older house have a curbless walk-in shower?

Often, but the floor framing decides. A true curbless shower needs the floor under it recessed so it can slope to the drain with no lip at the entry, which means lowering the subfloor between or around the joists. Some older floors allow that; in others, cutting into the joists isn't an option, and a low curb or a very low threshold gets you most of the benefit. A linear drain and well-placed glass keep the water in either way. For accessibility planning, see safety and mobility.

Can a tub surround be replaced without replacing the tub?

Yes, if the tub itself is in good shape. The old tile or panels come off down to the studs, the tub is protected during demolition, and the walls are rebuilt with backer board and waterproofing that overlap the tub's flange, so water runs into the tub instead of behind it. Then new tile or panels go on, usually multi-piece panels or tile, since a one-piece unit rarely fits through a doorway. If the tub is chipped, stained or leaking, replace it now, while the walls are open.

Can a new glass door go on an existing shower?

Usually, as long as the shower itself is sound. We measure the opening at the top, middle and bottom, because walls in older homes are often out of plumb and a tub edge or curb may not be level. Hinged doors need room to swing clear of the toilet and vanity, while sliding doors and fixed panels suit tighter bathrooms, and a hinge side gets anchored into a stud or blocking, not just tile. A new door won't fix a leak, so failed grout or caulk gets fixed first.

Which steps hold up a tub-to-shower conversion in Duluth?

A typical sequence runs design and ordering, permit review, tear-out, plumbing changes, inspection, backer board and waterproofing, tile, then grout cure and glass. The City of Duluth requires a building permit to replace a tub with a shower, so review comes before demolition. The waiting is usually in the permit, tile and glass orders, and cure times. Your written quote lists the schedule.

How long does a shower remodel take?

Longer than the tiling alone, because several steps have to wait on the one before. A shower remodel runs in phases: tear-out, repairs to framing or subfloor, plumbing changes and their inspection where a permit applies, backer board and waterproofing, tile, then grout and caulk curing before the glass goes on. Waterproofing membranes, thinset and grout each have cure times set by their makers, and custom glass is usually measured once the tile is done. Ask for those phases to be marked on your schedule.

Where can you shower while your bathroom is being remodeled?

Plan it before demolition, because the shower is out of service from tear-out until the grout and caulk have cured. A second bathroom is the easy answer. In a one-bath house, the usual options are a gym or community center, family or a neighbor nearby, or a shower at work. We mark the days the shower can't be used on the schedule, so you can line up a backup for exactly those days instead of finding out partway through the job.

How much does a walk-in shower remodel cost?

It falls within the national shower-remodel ranges: HomeAdvisor puts a typical shower remodel at $2,000–$9,000, and This Old House puts a custom shower remodel at $8,500–$10,000. Those are national ranges, not our prices. A walk-in's price climbs with a curbless entry, which can mean recessing the floor, plus a linear drain, a large fixed glass panel, and a bench or niche. Replacing a tub with a walk-in shower is priced as a tub-to-shower conversion, which has its own question on this page.

Can I put a remodel plate on a shower valve?

Often, yes. A remodel plate, also sold as a cover plate or oversized escutcheon, is a larger trim plate that hides the bigger opening left in the tile when an old valve or trim comes out, so you don't have to retile around it. It has to fit the valve and trim behind it, so the valve's brand and model decide what works; photograph the old handle and trim plate before you shop. If the valve itself is being replaced, plan the plate in from the start.

Does old caulk need to be removed before recaulking a tub?

Yes, all of it. Fresh caulk doesn't bond well to old caulk, soap film or mildew, so a new bead laid over the old one tends to peel away, often with water already trapped behind it. The old caulk gets cut and scraped out, the joint is cleaned and left to dry completely, and a new bead of caulk made for tubs and showers goes in and cures before anyone showers. We recaulk tubs and showers in Duluth and Superior as a repair on its own.

Do plumbers do tub-to-shower conversions?

A plumber does the plumbing part; the rest is carpentry, waterproofing and tile. In a conversion the drain usually moves and the valve goes up the wall, and that work is done under a plumbing permit, while Duluth also requires a building permit to replace a tub with a shower (City of Duluth). Removing the tub, repairing the floor, building the base and walls, waterproofing, tile and glass are remodeling work. We run the whole job and schedule the plumbing under its permit, so you have one contact.

Does Medicare cover a tub-to-shower conversion?

No, not Original Medicare. It pays for durable medical equipment, not for changes to the house, and its coverage list denies grab bars and bathtub seats as self-help or convenience items (Medicare coverage database). A Medicare Advantage plan may offer extra benefits, listed in its Evidence of Coverage (Medicare.gov). For eligible veterans, the VA's HISA benefit pays for medically necessary home changes, including roll-in showers; apply before work starts, since the application needs a prescription, a cost estimate and a before photo.

Can I remodel my shower myself?

Often, yes. In Duluth, an owner occupant of a single-family home can do most building, plumbing, electrical and mechanical work, but plumbing that alters the water supply, including replacing a shower, still needs a permit (City of Duluth). The hard part of a DIY shower is the wall behind the tile: the IRC requires listed backer boards, such as cement or glass-mat panels, in tub and shower areas, installed to the maker's instructions (IRC R702.4.2). A missed waterproofing detail shows up months later as a leak.

Can you finance a shower remodel?

Yes, through a lender you choose. Besides savings or a home equity loan, HUD insures renovation and repair loans through its Title I and 203(k) programs and says to work only with a HUD-approved lender (HUD). Title I loans are made by private lenders and can cover alterations and repairs on single-family homes (HUD Title I). The FTC lists a contractor suggesting you borrow from a lender they know as a scam warning sign (FTC), so shop the loan yourself and bring the lender your written quote.

How much does it cost to have a shower redone?

It depends whether the shower needs a repair or a full remodel. If the tile, pan and walls are sound, regrouting, recaulking or a new valve part may be enough; if water has gotten behind the tile, it becomes a remodel, and the national ranges at the top of this page apply. In an older house, the swing factor is what's behind the old tile, since rotted framing or subfloor adds carpentry. Send photos of the shower and any stains below it for a flat written quote.

Is it safe to keep using a leaking shower until it's repaired?

For a cosmetic problem like stained grout or a showerhead that drips into the drain, usually yes. Stop using it if water is showing up outside the shower: a stained or sagging ceiling below, soft drywall beside it, or tiles that move when you press them. Every shower then sends more water into the wall or floor, and rot and mold spread while you wait. If there's another bathroom in the house, use it until the leak is found.

These answers also sit in the Shower section of our FAQ, alongside questions on pricing, scheduling and coverage.

Where We Work: Our Service Area

Find your town below for notes on shower work where you live.

Duluth neighborhoods:

Superior neighborhoods:

Smaller towns are covered too: see the surrounding town notes, then the Minnesota or Wisconsin town guide for a checklist to send with your shower request.

Town checklists for shower projects

Project notes for towns across the service area:

Stop the Leak Before It Spreads

Call or text a few photos of the shower and anywhere water is showing up, and we'll send a written quote for the repair or the remodel.

Call Text Get a Quote