2026 Cost Guide · St. Charles County
How Much Does a Bathroom Remodel Cost in St. Charles, MO?
Real price ranges from our recent bathroom estimates in St. Charles County, from a shower update to a full primary bath.
Quick Answer
Most bathroom projects we price in St. Charles County fall between $5,000 and $25,000. A shower or tub-surround update with new fixtures sits at the low end. A full gut remodel of a standard bathroom usually lands in the middle. Large primary baths with custom tile, glass and a freestanding tub can run well beyond that.
For comparison, 2026 St. Louis-area data puts the average bathroom remodel at about $11,000, with full remodels ranging from about $23,500 to $75,000.
Typical Bathroom Costs in St. Charles County
| Project type | Typical cost* |
|---|---|
| Bathroom refresh (new vanity, toilet, fixtures, flooring and paint, same layout) | $5,000 – $9,000 |
| Shower or tub-surround replacement with solid-surface (onyx) panels, new valve and glass | $6,000 – $10,000 |
| Leaking tile shower: rebuild the pan with new waterproofing, per shower (plus repairs for any water damage found) | $7,000 – $9,000 |
| Leaking shower with full wall retile to the ceiling | add $5,000 – $7,000 |
| Full gut remodel of a standard bathroom (new tub or shower, walls, floor, vanity, fixtures) | $12,000 – $25,000 |
| Primary bath with custom tile shower, freestanding tub and double vanity | $25,000 – $45,000+ |
| New basement bathroom, no existing rough-in (includes cutting the slab for new drain lines) | $15,000 – $22,000 |
*Ranges are based on recent Hanson Design and Build estimates and 2026 St. Louis-area cost data. They’re for planning only. Your price depends on your home, layout and selections. Updated October 2026.
What Drives the Cost
- Tile vs. panels: custom tile walls take more labor than solid-surface (onyx) or acrylic panels.
- Moving plumbing: relocating a toilet or shower, especially through a concrete slab, adds cost.
- Waterproofing: a properly waterproofed tile shower costs more up front and saves you a leak later.
- Glass: frameless glass is a big line item, and framed or sliding doors cost less.
- Fixtures and vanities: brand and finish can swing the total by thousands.
- Hidden damage: failed shower pans often mean wet subfloor or framing.
Ways to Save Without Cutting Corners
- Keep the toilet, tub and shower in the same spots.
- Choose solid-surface (onyx) or acrylic shower walls instead of tile.
- Buy your own finishes from our recommended supplier list, and we install them.
- Pick an in-stock vanity rather than a custom one.
- Fix a leaking shower early, before water damage spreads to the framing.
How We Price
Clear Estimates, No Surprises
Every Hanson Design and Build estimate is written and itemized. Labor and the work we’re responsible for are priced as fixed line items. Finishes you pick, like tile, vanities, faucets, lighting and glass, are listed as allowances, which are a budget for each item.
If your selection costs more than the allowance, the difference is added by change order. If it costs less, you get a credit. You can also buy your own finishes from our recommended list, and we’ll install them.
When hidden conditions are possible, like water damage behind a leaking shower, we tell you up front and price the likely fixes ahead of time, so you can approve them before any extra work starts.
FAQ
Cost Questions
How much does a small bathroom remodel cost in St. Charles?
A small bathroom refresh that keeps the layout usually runs $5,000 to $9,000. A full gut remodel of a standard bathroom is typically $12,000 to $25,000.
How much does it cost to replace a shower?
Replacing a shower with solid-surface panels, a new valve and glass typically costs $6,000 to $10,000. Rebuilding a leaking tile shower pan is usually $7,000 to $9,000 per shower, plus more if the walls need to be redone.
Is a tile shower or a panel shower cheaper?
Panel showers (onyx or acrylic) are usually cheaper and faster to install. Tile costs more but offers more design options. Both last when installed correctly.
Do I need a permit for a bathroom remodel?
Usually, when plumbing or electrical work is involved. We pull the permit and schedule inspections.
How long does a bathroom remodel take?
Most take two to four weeks once materials are on site. Special-order items like solid-surface panels can have a lead time of several weeks.