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Arnold is Jefferson County's first city, a Meramec River valley community on the I-55 corridor just south of St. Louis.
River parks, Arnold City Park and a long commercial strip along Jeffco Boulevard sit beside mid-century ranches and newer hillside subdivisions above the valley.
For Arnold homeowners, Being Sauna arranges wet-area help: vetted local specialists, honest planning ranges published up front, and a free in-home assessment ending in a written quote.
In short: Bathroom remodeling in Arnold, MO covers the wet area — tub-to-shower conversions ($8,500–$17,000), shower replacement ($7,500–$15,000), walk-in showers ($9,000–$18,000) and tub replacement ($6,500–$13,000). Vetted local specialists serve Arnold and ZIP 63010. Call (833) 334-4470.
Six services, one specialty — the tub and shower. Each card links to its full guide, and the ranges below are what Arnold homeowners actually plan around.
Start with the guide that matches your room, then compare it with the cost table further down the page. For the full picture, see all our bathroom remodeling services.
The classic Arnold upgrade for a household that never soaks: a tub nobody uses becomes a low-entry shower the whole family actually steps into. Pan, valve and drain are renewed together in the same footprint.
For Arnold showers worn by hard water and daily use: grout that keeps darkening, a valve that sticks, or a pan tired after years of service. Pan, valve and walls are replaced together while the old unit is out.
A low-entry shower with a bench, anchored grab bars and controls within reach helps an Arnold home work for the long term. Blocking for bars goes into real structure behind the tile.
Many Arnold families still need a proper tub — for small children, for a long soak, or for a home where one full bath must do everything. A deeper modern tub usually fits inside two days.
A shower-only Arnold home can gain a tub again without moving walls. A tub-shower combination returns, with renewed plumbing underneath and waterproofing behind the walls, built for family use.
Whole-room reworks for Arnold baths where tub and shower both need reworking at once, or where a dated room needs a fresh start. One project, one written quote, wet area first — with ventilation and storage put right in the same pass.
A tub-to-shower conversion turns the hardest step in a busy Arnold household into a low-entry shower — pan, valve and drain renewed together.
Arnold sits in the St. Louis-area contractor market, with crews working the I-55 corridor toward Fenton, Imperial, Barnhart, Festus, Oakville and St. Louis.
Most jobs land in the middle of these ranges, and the spread comes from the house, not the ZIP. A simple alcove swap is an easier job than a river-valley bath whose moisture path must be traced or a hillside room with awkward access.
The upper half of a range is priced in the written quote before work begins. For the method behind every figure, see the 2026 bathroom remodeling cost guide.
| Project | Planning range |
|---|---|
| Tub-to-shower conversion | $8,500 – $17,000 |
| Shower replacement | $7,500 – $15,000 |
| Walk-in shower | $9,000 – $18,000 |
| Bathtub replacement | $6,500 – $13,000 |
| Shower-to-tub conversion | $7,500 – $14,000 |
| Full bathroom remodel | $15,000 – $35,000+ |
Planning ranges based on published national installer pricing (2026), for budgeting guidance — not quotes. Compare quotes on what they cover: pan, valve and drain together. The cheapest number often leaves a worn drain or tired valve behind new walls. Full methodology: the 2026 cost guide.
Arnold is a Meramec River valley city in Jefferson County, and its bathrooms reflect that setting: river-valley homes, mid-century ranches, and newer hillside subdivisions above the valley. Four local factors shape every wet-area project here.
The Arnold service area covers about 34,478 people in ZIP 63010, on the I-55 corridor between St. Louis and Festus.
Arnold housing runs from older river-valley homes to mid-century ranches and newer subdivisions on the hills above the Meramec. Ranch baths tend to be standard alcoves, while valley homes can carry older plumbing and damp-prone walls.
That mix shapes the job. A newer subdivision bath may need only a valve and pan renewal, while a valley home can hide tired plumbing behind older walls. Hillside homes add a third pattern: rooms where access and delivery both need planning.
The Meramec River shapes Arnold's low ground, and river-valley damp is a bathroom factor, not just a yard factor. Water moving through valley soil can find its way behind tile if seals and drainage are tired.
For owners of these homes, the assessment matters more than the catalog. A low-entry shower or a renewed tub must fit the room as it actually stands, with its moisture path understood. The written quote prices the real room, wall by wall.
Most Arnold households in town run on public water and sewer service, which keeps fixture choice straightforward. Outlying Jefferson County lots beyond the city can still sit on wells or septic systems, and those change the plan.
Arnold water is hard, so scale builds on valves and showerheads over time. Fixtures are chosen to resist buildup and stay easy to clean. Where a well or septic system is present, the assessment confirms it on the day.
Arnold has humid summers and cold winters, with spring storm season in between. Work is sequenced around freeze forecasts, and deliveries are confirmed before demolition starts, so a half-open bathroom never waits on a truck.
Summer humidity tests the fan and the seal, not just the tile. A bathroom that cannot clear its own steam will grow problems behind new walls, so the duct path is checked to make sure damp air leaves the house.
An illustrative wet-area remodel of the kind served around Arnold — shown as a design example, not a completed project photo in Arnold.
Nothing fancy — just four things that help the specialist price your Arnold bath on the first visit. Know the home type: river-valley home, mid-century ranch, or newer hillside subdivision home. Note the water setup and any history of slow drains, temperature swings, or damp around the tub.
Bring a rough footprint measurement and note whether a second bath exists, so the household keeps a wash-up option during the work. Settle which outcome matters most first — safer step-in shower, deeper tub, or full-room rework — so the quote prices the right job.
Our Arnold coverage centers on the community and ZIP 63010, with specialists travelling the I-55 corridor routes toward Fenton, Imperial, Barnhart, Festus, Oakville and St. Louis — typical directions:
Coverage centers on Arnold and the 63010 ZIP in Jefferson County, with specialists travelling the I-55 corridor routes to Fenton, Imperial, Barnhart, Festus, Oakville and St. Louis.
We publish planning ranges on every page. No “call for price”, no games — you budget before anyone visits.
The price you sign is the price you pay. Quotes are written, itemised and valid beyond the day of the visit — take your time deciding.
Installers are independent local contractors checked for licensing, insurance and wet-area specialisation before they take a single Being Sauna job — including experience with hard water, freeze-thaw winters, and river-valley moisture.
The biggest complaint in this industry is the same-day pressure close. Our specialists are instructed the opposite way: measure, explain, quote in writing, and leave the decision to you.
Call (833) 334-4470 or send the assessment form. Tell us the neighborhood, the bath, and whether the home is a river-valley home, mid-century ranch or hillside subdivision home — that is all the booking needs.
A vetted local specialist measures the room, checks the valves, drain, ventilation and water setup, and explains the options in plain language. No charge, no obligation.
Most wet-area projects finish in one to three days, with the house left clean and the new shower or tub demonstrated before the crew leaves.
Most wet-area projects in Arnold follow the planning ranges on this page: tub-to-shower conversions $8,500–$17,000, shower replacements $7,500–$15,000, walk-in showers $9,000–$18,000, bathtub replacements $6,500–$13,000, shower-to-tub conversions $7,500–$14,000 and full remodels $15,000–$35,000+. Your exact price is confirmed in writing after a free in-home assessment.
It can. Low-lying Arnold homes near the Meramec River need a moisture and drainage check before walls are closed up, since river-valley damp finds its way behind tile. Hillside subdivisions above the valley add a different check, for access and delivery. The assessment maps the pan, valve and drain before anything is priced, so the quote reflects the real room.
Hard water leaves scale on valves and showerheads, so fixtures are chosen to resist buildup and stay easy to clean. Freeze-thaw winters test exterior-wall plumbing and seals, so pipes and penetrations are checked while the walls are open. The fan path is also checked, because humid Missouri summers need a bathroom that clears its own steam.
Usually not. Most Arnold ranches have standard alcove tubs, so a tub-to-shower conversion fits in the same footprint with pan, valve and drain renewed together. The job typically takes one to three days. If the assessment finds older plumbing or a tired drain, that work is priced in the written quote before demolition starts.
A vetted local specialist measures the room, checks the pan, valve, drain, ventilation and water setup, and explains the options in plain language. You receive a written, itemised quote that stays valid beyond the day of the visit. There is no charge, no obligation, and no pressure to sign on the day.
How Being Sauna works (transparency note): Being Sauna is a free homeowner service that connects you with independent, vetted local bathroom remodeling contractors — we do not install bathrooms ourselves.
Cost figures are planning ranges from published national installer pricing; see our cost guide methodology. This page was last reviewed in October 2026. Questions: beingsauna@gmail.com or (833) 334-4470. Hours: Mon–Sat 9 AM–8 PM CT.
Free in-home assessment in Arnold · No pressure · No obligation
Call (833) 334-4470