From tub-to-shower conversions to luxury walk-in designs with frameless glass, rain showerheads, and built-in niches — we handle every detail from waterproofing to finish hardware.
Shower remodeling in Middleton is dominated by one project — converting a builder tub-shower combo or a failing old surround into a fully tiled walk-in — and shaped by conditions specific to this Canyon County town: hard water that scales glass and etches stone (harder still on the many private wells), a 10°F design winter that makes cold tile a real comfort issue, and a housing split between pre-1970 farm homes with mud-set tile over questionable substrate and a vast subdivision ring of builder pans installed to a budget. Middleton grew more than 70 percent between 2010 and 2020, and that growth produced thousands of builder-grade showers in Kestrel Estates, Bridgewater Creek, and Quail Haven that have aged out, plus a core of older homes whose original showers sit over substrate that has to be assessed before anything else. Iron Crest Remodel builds showers across that full range, and the value we bring is uncompromising waterproofing execution plus material and glass choices made for Middleton's actual water and climate — because the shower is the single least forgiving assembly in the house, and the failure mode here is hidden, expensive, and structural. This page is written to Middleton's real conditions, not a generic shower overview.
Design and build the shower you have always wanted — from custom tile work to barrier-free walk-ins.
A shower remodel transforms one of the most-used spaces in your home — from a basic, builder-grade enclosure into a custom-designed space that fits your daily routine, aesthetic preferences, and long-term needs. Shower remodeling involves demolition of the existing shower or tub, plumbing rough-in for new drain and supply locations, structural preparation, waterproofing membrane installation, tile or panel application, glass enclosure installation, and fixture mounting. In the Treasure Valley, many homes built in the 1990s and 2000s have small, dark, builder-grade showers with fiberglass surrounds, poor drainage, and inadequate waterproofing that leads to hidden water damage over time. A properly planned shower remodel addresses all of these issues while creating a space that is both beautiful and built to last. The most critical element of any shower build is waterproofing — every surface that receives water must be properly membraned, sealed, and sloped to prevent moisture from reaching the framing and subfloor behind the finished surface.
Middleton homeowners pursue shower remodeling for a variety of reasons. Here are the most common situations we see:
Not every shower remodel project is the same. Here are the most common project types we complete in Middleton:
Remove an existing bathtub and replace it with a custom walk-in shower. Includes new drain placement, curb or zero-threshold entry construction, waterproofing, tile installation, glass enclosure, and updated fixtures.
Redesign and rebuild an existing shower with new tile, fixtures, glass enclosure, niches, and lighting. May include expanding the shower footprint, adding a bench, or changing the layout.
Design and build a zero-threshold shower with curbless entry, linear drain, anti-slip tile flooring, grab bars, fold-down bench seating, and handheld showerhead for accessible daily use.
High-end shower build with premium tile, rain showerhead, body sprays, thermostatic valve system, LED lighting, large-format niches, and frameless glass enclosure. Designed for a spa-like daily experience.
Install grout-free solid surface shower panels for a clean, low-maintenance alternative to tile. Ideal for homeowners who want a fresh shower without the upkeep of grout cleaning and sealing.
A sharply bimodal stock: a hard core of pre-1970 farm and town homes (galvanized supply, cast-iron drains, minimal insulation, frequent single-bath, possible asbestos/lead) and a very large 2000s–2020s production-subdivision ring (sound systems, uniformly builder-grade finishes), plus higher-end foothill/acreage builds.
Original farm and town homes in the historic core; wood siding, plaster, single-bath, original or near-original systems.
Mid-century rural and town ranches; mud-set tile, galvanized/cast-iron plumbing, undersized electrical, minimal insulation.
Early subdivision and rural infill; some polybutylene-era plumbing risk, dated but sound builder finishes.
The dominant stock by volume — Kestrel Estates, Bridgewater Creek, Quail Haven, Hidden Mill, View Ridge, Middleton Lakes; modern systems, builder-grade finishes now aging out.
Material selection affects the look, durability, and cost of your shower remodel. Here are the most popular options we install in Middleton:
The most popular shower surface material. Dense, water-resistant, available in hundreds of styles including large-format, wood-look, stone-look, and mosaic options. Large-format tiles (12x24 and up) create a modern, seamless look.
Best for: Shower walls, floors, niches, and accent features
Premium tile option that delivers a luxurious, one-of-a-kind look. Marble hexagon floors, marble slab walls, and travertine accents create a spa-like atmosphere. Requires sealing and careful maintenance.
Best for: Feature walls, luxury shower floors, accent strips, and niche interiors
Bonded waterproofing membrane system applied to every shower surface. Available as sheet membrane, liquid-applied membrane, or foam board panels. The single most critical material in any shower build — it prevents water from reaching the structure.
Best for: Every shower floor, wall, curb, niche, and bench surface — no exceptions
Custom-measured and fabricated clear tempered glass panels and door with minimal hardware for a clean, modern look. Available in 3/8-inch and 1/2-inch glass thicknesses with various hardware finishes.
Best for: Walk-in showers where visual openness and modern design are priorities
Pressure-balancing or thermostatic shower valve with trim, showerhead, and optional handheld sprayer. Quality fixtures from Moen, Delta, Kohler, or Grohe provide reliable temperature control and water delivery.
Best for: Every shower — the valve is the functional heart of the shower system
Here is how a typical shower remodel project works from first contact to final walkthrough:
We visit your bathroom, evaluate the existing shower or tub space, discuss your daily routine and wish list, and review layout options, material choices, and fixture selections. You receive a design concept and detailed estimate.
We finalize the shower layout, tile design, niche locations, fixture selections, glass enclosure style, and any accessibility features. Materials are ordered and lead times are confirmed. A fixed-price contract is prepared.
The existing shower or tub is demolished, and we inspect the framing, subfloor, and drain condition. New plumbing rough-in is completed for the reconfigured drain location, supply lines, and valve placement. Framing modifications for niches, benches, and shower size are completed.
This is the most critical phase. We apply a bonded waterproofing membrane system (Schluter Kerdi, Laticrete Hydro Ban, or equivalent) to every shower surface — floor, walls, curb, niches, and bench. The shower pan is sloped to the drain and tested for leak-proof integrity before tile begins.
Floor tile is installed first with proper slope to drain, followed by wall tile, niche tile, bench tile, and any accent or feature tile. Grout is applied, cleaned, and sealed. Large-format tiles, mosaics, and accent patterns are laid out precisely per the design plan.
The glass enclosure (frameless, semi-frameless, or framed) is measured, fabricated, and installed. Showerhead, valve trim, diverter, handheld sprayer, grab bars, towel hooks, and all hardware are mounted and tested.
We run the shower for an extended test to verify drainage, water pressure, valve operation, and leak-free performance. Grout sealant is applied, and a final walkthrough ensures every detail meets expectations.
Here is what to expect for project duration when planning a shower remodel in Middleton:
| Phase | Duration | Details |
|---|---|---|
| Design and Material Selection | 1–3 weeks | Consultation, design development, tile and fixture selection, and contract finalization. Material lead times for specialty tile and glass can add 2-4 weeks. |
| Demolition and Plumbing Rough-In | 2–3 days | Remove existing shower or tub, inspect framing and subfloor, complete plumbing rough-in for new drain and supply locations, and frame any niches or benches. |
| Waterproofing | 1–2 days | Apply waterproofing membrane to all shower surfaces. Test the shower pan for leak-proof performance. This phase must be completed and verified before tile begins. |
| Tile Installation | 3–6 days | Floor tile, wall tile, niche tile, and accent tile installation. Grouting and sealing. This is typically the longest phase of active construction. Complex designs take longer. |
| Glass and Fixture Installation | 1–2 days | Glass enclosure measurement, fabrication (if not pre-ordered), and installation. Showerhead, valve trim, hardware, and accessories are mounted and connected. |
| Final Testing and Walkthrough | 1 day | Extended shower test, drainage verification, grout sealing, and homeowner walkthrough to confirm quality and function. |
Middleton range: $9,000–$16,000 – $30,000–$55,000
Most Middleton projects: $15,000–$28,000
Middleton shower costs are driven by size, tile and glass selection, whether the project is a straightforward conversion or a gut over compromised substrate, and the era of the home. The low range covers a contained tub-combo-to-walk-in conversion in a subdivision home with sound substrate and a standard tiled surround and glass. The average range reflects the most common Middleton project: a full primary-shower build — curbed or curbless walk-in, fully waterproofed tiled enclosure, frameless hard-water-resistant glass, niche and bench, quality fixtures. The high range applies to large primary-suite showers, curbless linear-drain builds with multiple water outlets and radiant floors, and gut renovations of older showers requiring subfloor and framing repair plus possible asbestos handling of associated materials. Two Middleton-specific cost factors recur: first, the waterproofing system is not where to economize — a code-compliant membrane assembly is mandatory and inspected, and the cost of skipping it is structural; second, hard-water-appropriate glass (coated) and the frequently warranted softener, plus radiant floor heat for the 10°F winter, are locally driven additions that materially improve the result. We assess substrate and price waterproofing and repair work transparently rather than under-quoting it, because in a shower the hidden execution determines whether it lasts a decade or fails into the structure in three years.
The final cost of your shower remodel in Middleton depends on several factors. Here are the biggest cost drivers:
A standard 3x4 foot shower costs significantly less than a 4x6 or 5x8 foot walk-in. Larger showers require more tile, more waterproofing, larger glass enclosures, and more labor.
Standard subway tile on walls with mosaic floor tile is the most affordable option. Large-format tiles, natural stone, intricate mosaic patterns, accent bands, and niche detailing increase material and labor costs significantly.
Keeping the drain and supply lines in their existing locations is the most affordable approach. Moving the drain, adding supply lines for multiple showerheads, or converting from a tub configuration adds plumbing labor and material cost.
A shower curtain is the least expensive enclosure. Semi-frameless glass doors run $800-1,500. Frameless glass enclosures with custom panels range from $1,200-3,500+ depending on size and configuration.
Zero-threshold entries with linear drains, built-in bench seating, grab bar blocking, and anti-slip flooring add cost but provide essential function for aging-in-place planning.
Builder-grade showerheads and valves start around $150-300. Mid-range fixtures from Delta, Moen, or Kohler run $400-800. Premium thermostatic systems with rain heads and body sprays can exceed $2,000.
These are the real-world projects we see most often from Middleton homeowners:
The single most-requested Middleton shower project. A 2000s–2010s production home with a builder fiberglass or acrylic tub-shower combo, or a mastic-set tile pan, in the primary bath. The unit is demolished, the subfloor inspected, and a new curbed or curbless walk-in shower is framed and fully waterproofed with a Schluter KERDI or Laticrete Hydro Ban membrane system, then tiled in large-format porcelain. A frameless glass enclosure with a factory hard-water coating, a niche, and a bench complete it. Modern substrate keeps the work predictable; the transformation from builder combo to tiled walk-in is decisive for both daily use and resale against newer inventory.
A historic-core or rural home with an original mud-set tile shower over a cast-iron or steel pan and minimal waterproofing. Scope includes environmental testing where pre-1980 associated flooring/adhesive is disturbed, full demo, inspection and repair of the subfloor and framing routinely found water-damaged beneath these old showers, a complete modern waterproofing membrane assembly, new tiled enclosure, glass, and fixtures, and exterior-vented ventilation. The substrate repair and waterproofing rebuild are the core of the project — the finish is the easy part once the assembly beneath it is sound.
Middleton's roughly four-in-five ownership rate and long tenures drive strong demand for zero-threshold curbless showers built for staying in the home. Scope includes a fully waterproofed curbless enclosure with a linear drain, slip-resistant large-format tile, blocked walls for current or future grab bars, a bench, a handheld on a slide bar, and a comfort-height layout — with radiant floor heat frequently added given Middleton's cold winters. Built into a planned remodel it is a quality-of-life upgrade; retrofitted under necessity it is far harder, so doing it deliberately is the better path.
On Middleton's foothill and acreage properties toward the Star border, a primary shower matching a home well above the city median: large curbless enclosure, large-format porcelain throughout, linear drain, multiple water outlets (rain head, hand shower, body sprays) on pressure-balanced valves, bench, multiple niches, frameless low-iron coated glass, and radiant floor heat. Nearly all these homes are on private wells, so a softener is part of the design conversation to protect the glass and fixtures from the harder well water — not an afterthought.
Converting a cramped or dated tub or stall in a guest/hall bath to an efficient tiled walk-in, common when the household retains a tub elsewhere and wants the secondary bath modernized for daily use and resale presentation. Scope is a properly waterproofed compact tiled enclosure, durable hard-water-tolerant glass or a clean half-wall, and fixtures in a brushed finish that hides Canyon County mineral spotting. Cost-controlled and high-impact for the space.
Solution: We demolish to studs, inspect and repair all water-damaged framing and subfloor, and rebuild with a proper waterproofing membrane system that prevents future moisture intrusion.
Solution: We expand the shower footprint where possible, use light-colored large-format tile to open up the space, install a frameless glass enclosure for visual openness, and add recessed LED lighting for a bright, spacious feel.
Solution: We remove the old surround, inspect the substrate, install proper waterproofing, and build a custom tile shower that transforms both the look and feel of the space.
Solution: We evaluate your water supply capacity and install a pressure-balancing or thermostatic valve system with options for rain showerheads, handheld sprayers, and body jets — significantly improving the shower experience.
Solution: We use mold-resistant grout, properly sealed tile joints, and premium silicone caulk at all change-of-plane transitions. A properly waterproofed shower with adequate ventilation prevents mold from developing behind the finished surface.
High-desert river valley at ~2,400 ft, IECC Climate Zone 5B: cold winters (≈10°F winter design temperature), intense high-elevation summer UV, dry heat, hard freeze-thaw cycling, and pervasive wind-driven agricultural dust. The City's official adopted criteria classify weathering as 'severe.'
Drives envelope and window specification, frost-depth footings, and high demand for radiant floor heat.
All footings (deck, addition, ADU) must bear below 24" — or deeper per geotechnical report on variable rural/foothill soils.
Economy siding/paint/decking fail on an accelerated, visible schedule; premium UV- and freeze-rated systems required.
Scales glass and fixtures, etches stone; drives coated glass, porcelain, brushed fixtures, and softeners.
Pervasive field dust loads tile grout and seams and demands heavier surface prep for paint adhesion.
City maintains adopted FIRM maps (Ord. 531, 4-2-2014); river-/channel-proximate work requires flood-zone verification.
The original town grid around Main Street and the historic mill site — Canyon County's oldest neighborhood, with pre-1970 farm and town homes on smaller, tighter-setback lots.
Common projects in Old Middleton / Historic Core & Mill Site:
Planned 2010s-and-later production-home subdivisions along the Middleton Road / Hwy 44 growth corridors, generally on city water and sewer, with builder-grade finishes now aging out.
Common projects in Kestrel Estates & Bridgewater Creek:
Newer growth-wave and amenity/water-feature subdivisions with strict HOA architectural review; some lots near the lower Boise River floodplain.
Common projects in Quail Haven, Hidden Mill & Middleton Lakes:
Higher-end foothill and acreage properties toward the Star border with larger lots, views, and private well/septic; finish expectations well above the city median.
Common projects in Foothill / Sage Canyon Edge & View Ridge:
Agricultural acreage outside the city sewer envelope, predominantly on private well and septic, with the highest dust and wind exposure and the most outdoor-living space.
Common projects in Rural Middleton Road Acreage:
Every Middleton neighborhood has different housing stock, homeowner priorities, and project considerations. Here is what shower remodel looks like in each area:
Permit authority: City of Middleton Building Department (1103 West Main Street, Middleton, ID 83644; (208) 585-3133) for properties inside city limits; Canyon County Building Department for unincorporated properties. Septic for rural/ADU work via Southwest District Health.
Online portal: middleton.id.gov/Departments/Building
Here are the design trends we see most often in Middleton shower remodel projects:
Middleton's median home value climbed toward and past roughly $380,000 by early-to-mid 2024, with a homeownership rate near 83% and a market rising on sustained, rapid in-migration. Because buyers entering the growth market compare resales directly against the new construction still being built in the same subdivisions, dated finishes (and, in older stock, deferred systems) act as active discounts rather than neutral features — making coherent, code-correct remodeling unusually well-rewarded here.
Avoid these common pitfalls Middleton homeowners encounter with shower remodel projects:
Better approach: A continuous ANSI A118.10-compliant membrane system over cement board is mandatory under Middleton's adopted code and inspected. Tile over drywall or unmembraned board fails invisibly, and in Middleton's tightly sealed 5B homes the resulting hidden mold and structural rot are severe and expensive. This is the single least negotiable execution detail in the house; a few hundred dollars of membrane prevents a five-figure structural remediation.
Better approach: Uncoated clear glass scales permanently within weeks and natural stone etches in Middleton's hard water — worse on private wells. Specify factory-coated frameless glass and large-format porcelain over stone, and strongly consider a softener, especially on well systems. Decide this in design, not after the homeowner is living with permanent scale and etching.
Better approach: Middleton's adopted code requires exterior-vented mechanical ventilation for enclosed showers, and a 5B-climate home traps moisture. An attic-dumped fan is a code violation and a direct moisture-damage pathway. Duct ventilation to the building exterior with a proper terminating cap and damper, and correct any improper existing termination during the remodel.
Better approach: Pre-1970 Middleton showers commonly sit over water-damaged subfloor and framing from years of slow leakage past minimal original waterproofing. Tiling over it without inspection and repair guarantees the new shower fails into the same compromised structure. Gut, assess, repair the substrate, and rebuild the waterproofing assembly before any new tile.
Better approach: Middleton's 10°F design winter makes an unheated tile shower floor genuinely cold for roughly five months. Electric radiant heat is a modest add at remodel time and effectively impossible to retrofit later without redoing the floor. For most Middleton owners it is among the highest-satisfaction elements of the project — build it in now rather than wishing for it every winter.
For most Middleton subdivision primary baths, yes. The builder fiberglass or acrylic tub-combo is one of the first things a buyer marks against a home in a market comparing resales to new construction, and most households use the primary shower daily and the tub rarely. The standard advice is to retain a tub in a secondary or hall bath for resale breadth while converting the primary to a tiled walk-in. If the home has only one full bath — common in older core homes — weigh the resale tradeoff before removing the only tub. In multi-bath homes the primary walk-in conversion is both the better daily experience and the stronger listing.
Several specific choices. Use large-format porcelain rather than natural stone, which etches and stains in Canyon County water. Specify frameless glass with a factory hydrophobic coating, or the calcium scale becomes permanent within weeks. Choose brushed nickel or matte black valves and trim over polished chrome, which broadcasts spotting. And strongly consider a water softener — especially on a private well, where the water runs harder and the softener protects the new glass, fixtures, and the whole home at once. We build this into the design, not after the glass is in.
Because the shower is the least forgiving assembly in the house, and Middleton's tightly sealed 5B-climate homes turn a waterproofing shortcut into hidden structural rot rather than a visible leak. The adopted building code requires a continuous ANSI A118.10-compliant membrane system over cement board — never tile over drywall — and inspectors verify it. A shower tiled without a proper membrane fails invisibly into the wall and subfloor within a few years, and the remediation costs many times what the membrane would have. It is the single most important thing to get right, and we never compromise it.
For most owners here, yes. Middleton's 10°F winter design temperature means an unheated tile shower and bathroom floor is genuinely cold underfoot for roughly five months a year. Electric radiant heat under the tile adds a modest amount to the project and changes the daily experience of the space through the entire heating season. It is consistently one of the most "worth every dollar" upgrades we install in Middleton showers and baths, particularly for the town's long-tenure owners.
Pre-1970 Middleton showers typically have original mud-set tile over minimal waterproofing, and slow leakage has often damaged the subfloor and framing beneath. The project is a gut: demolition, environmental testing where pre-1980 associated flooring or adhesive is disturbed, inspection and repair of the water-damaged substrate, a complete modern membrane waterproofing assembly, then the new tiled enclosure and glass. The substrate repair and waterproofing rebuild are the real scope; the visible finish is the straightforward part once the assembly beneath it is sound.
If it involves plumbing changes, yes — a plumbing permit at minimum, plus electrical for radiant heat or ventilation and a building permit where framing is altered. In-city projects go through the City of Middleton (1103 West Main Street; (208) 585-3133, CitizenServe portal); properties outside city limits go through Canyon County. Inspections include rough-in and final, and inspectors specifically verify the waterproofing system. We confirm jurisdiction at your address and handle the permitting and inspections.
A shower remodel in the Boise area typically costs $6,000-12,000 for a standard tub-to-shower conversion with tile, $10,000-18,000 for a mid-range custom walk-in shower, and $18,000-30,000+ for a luxury shower with premium tile, frameless glass, and multi-head fixtures.
A typical shower remodel takes 2-3 weeks from demolition to completion. Simple tub-to-shower conversions with panel systems can be faster. Complex custom tile showers with specialty glass take longer. Design and material ordering before construction adds 2-4 weeks.
Walk-in showers are preferred for daily use, accessibility, and modern design. However, having at least one bathtub in the home is recommended for families with young children and for resale value. Many homeowners convert a secondary tub to a shower while keeping one tub elsewhere.
Waterproofing. Every square inch of the shower — floor, walls, curb, niches, and bench — must be properly membraned to prevent water from reaching the framing and subfloor. Proper waterproofing prevents leaks, mold, rot, and structural damage that are extremely costly to repair.
Absolutely. Modern accessible shower design uses curbless entries with linear drains, decorative grab bars in matching finishes, teak fold-down benches, and the same premium tile and glass as any custom shower. The result is a beautiful shower that happens to be accessible.
Small mosaic tiles (2x2 or penny rounds) are the traditional choice because they conform to the shower pan slope and provide grip with many grout lines. Large-format tiles with linear drains are increasingly popular for a modern, seamless look but require precise slope and installation.
Get a free, no-obligation estimate for shower remodeling in Middleton, ID. We handle design, permits, and every detail of construction.
Get Your Free Estimate