Shower Remodeling in the East End / Warm Springs
Walk-in shower conversions, period-appropriate tile, Schluter Kerdi waterproofing — for 1900–1925 East End bungalows and Warm Springs estates.
Shower remodeling in the East End and Warm Springs Avenue addresses pre-1925 home conditions: original tub-shower combos with claw-foot tubs and pipe-mounted showerheads, plaster-and-lath walls that require careful demolition, original cast iron drains that need replacement, lead paint requiring EPA RRP work practices, sometimes asbestos in pre-1980 mastic or sheet flooring, and period-appropriate finish-tier expectations matching $550K–$3M+ home values. Iron Crest's East End shower work emphasizes Schluter Kerdi sheet membrane waterproofing on every shower (no exceptions, lifetime warranty), period-appropriate tile patterns (hex mosaic floor, subway wall, basket weave accent), classic plumbing fixtures (Kohler Memoirs, House of Rohl, Newport Brass), heated floor coordination with geothermal where applicable, and respectful integration of new walk-in showers with original architectural language.
Shower strategy in the East End depends on era, original fixture significance, and renovation ambition.
Pre-1900 Warm Springs Avenue mansions
Original showers if any were primitive. Most owners want walk-in shower addition or full primary bath renovation including new walk-in shower. Period-appropriate design essential.
1900–1925 East End bungalows
Original 5'×7' bathrooms with claw-foot or built-in cast iron tub. Owner usually wants walk-in shower conversion. Sometimes preserves claw-foot tub elsewhere in bath; sometimes full conversion.
1925–1940 transitional homes
Larger bathrooms with built-in tub-shower combos. Sometimes preserves original tile aesthetic; sometimes full replacement.
Post-1940 East End infill
Smaller post-war bathrooms. Modern renovation appropriate. EPA RRP applies for pre-1978.
East End shower projects cluster into recognizable shapes by era and ambition.
1. The Walk-In Shower Conversion
Conversion of original tub-shower combo to walk-in shower. Often involves footprint reorientation. Classic period-appropriate tile patterns. Schluter Kerdi waterproofing. Frameless glass enclosure.
Target homes: 1900–1925 East End bungalows wanting modern walk-in shower in original bath. Permit: standard plumbing/electrical permits.
2. The Period-Appropriate Walk-In
Walk-in shower with extensive period-appropriate detailing — hex mosaic floor, subway wall tile, basket weave accent, period-style plumbing fixtures (Kohler Memoirs, House of Rohl), classic chrome or polished nickel finishes. Premium tier integration with original architecture.
Target homes: East End homes wanting period-respectful primary shower. Permit: standard plumbing/electrical.
3. The Premium Spa Shower with Period Details
Larger 4'×6' or 4'×7' walk-in shower with multi-function fixtures (rain head ceiling-mount, handheld on slide bar, body sprays), heated bench and floor, premium tile (honed marble or large-format porcelain in marble look), period-appropriate fixtures throughout. Frameless low-iron glass enclosure.
Target homes: Premium East End and Warm Springs primary baths. Permit: standard plumbing/electrical.
4. The Claw-Foot Tub Preservation with Walk-In Addition
Bathroom retains restored claw-foot tub as centerpiece while adding new walk-in shower in adjacent space. Often involves footprint expansion. Period-appropriate tile patterns. Schluter Kerdi waterproofing for new shower.
Target homes: East End primary baths wanting both original character and modern function. Permit: standard plumbing/electrical permits; possibly building permit if structural changes.
5. The Secondary Bath Shower
Secondary bath shower renovation — guest, kids, hall. Period-appropriate but slightly less elaborate than primary. Walk-in shower with Schluter Kerdi, classic tile patterns, mid-premium fixtures.
Target homes: East End secondary baths. Permit: standard plumbing/electrical permits.
The East End / Warm Springs spans roughly two square miles with distinct sub-neighborhoods, each with its own remodeling personality.
Warm Springs Avenue Historic District
The premier residential corridor along Warm Springs Avenue from approximately Broadway Avenue to Walnut Street, listed on the National Register of Historic Places. Magnificent turn-of-century homes including Queen Anne Victorians, Colonial Revivals, Tudor Revivals, and grand Craftsman estates from 1890–1925. Many homes use geothermal heating drawn from the underlying hot-water aquifer (one of the largest geothermal districts in the United States). Lots typically 0.25–0.75 acre. Home values $1.2M–$5M+.
East End — Bungalow Belt
The dense bungalow neighborhoods between Broadway Avenue and the Foothills, north of Front Street. Predominantly 1908–1928 Craftsman bungalows on smaller lots (50' × 125' typical). Architectural cohesion is strong — built-in cabinetry, exposed rafter tails, low-pitched gable roofs, deep front porches. Locally designated East End Historic District requires Historic Preservation Commission review. Home values $550K–$1.4M.
Old Penitentiary Historic District
The historic neighborhood surrounding the Old Idaho Penitentiary museum, including portions of Old Penitentiary Road and adjacent streets. Mix of late-1800s ranchhand and early-20th-century working-class cottages, plus newer infill from the 1950s–80s. Locally designated historic district with Historic Preservation Commission review. Home values $475K–$950K.
Reserve Street / Park Center area
The corridor along Reserve Street and the Park Center development north of the river. Mix of pre-1925 Craftsman, 1950s-60s ranches, and newer 1990s-2010s infill. No Historic District constraint for most of this area. Home values $475K–$925K.
East Boise — Highlands transitional
The transitional zone between East End and the Foothills, climbing from Warm Springs Avenue up toward Table Rock and the Boise Foothills. Mix of 1920s-30s homes built on the original lower elevations of the Foothills and 1960s-80s ranches and contemporaries. Some properties have geothermal heat extending from the Warm Springs district. Home values $650K–$1.8M.
Reserve / Eastland infill streets
Smaller streets and infill developments throughout the broader East End. Mix of original pre-1925 homes interspersed with 1940s-50s post-war housing and 1960s-80s ranches. Lots vary widely. Sometimes outside formal Historic District boundaries. Home values $475K–$885K.
East End shower pricing reflects period-appropriate materials, Schluter Kerdi waterproofing, plaster-and-lath demolition, lead-safe protocols, and finish-tier matching property values.
East End / Warm Springs shower remodeling ranges
Secondary bath shower (Walk-in shower with period-appropriate tile and mid-premium fixtures): $22,000–$35,000 / 3–5 weeks
Walk-in shower conversion (Convert original tub-shower combo to walk-in): $28,000–$45,000 / 4–6 weeks
Period-appropriate walk-in (Walk-in with extensive period-appropriate detailing): $32,000–$48,000 / 5–7 weeks
Claw-foot preservation with walk-in addition (Preserve claw-foot tub and add new walk-in shower): $35,000–$55,000 / 5–8 weeks
Premium spa shower with period details (Multi-function spa shower with period aesthetic): $38,000–$58,000 / 5–8 weeks
Pricing assumes Iron Crest's standard scope: full City of Boise permits, EPA RRP lead-safe practices, asbestos testing during demolition, plaster-and-lath demolition and repair, Schluter Kerdi waterproofing on all wet areas, period-appropriate tile and fixtures, heated floor where applicable, and a 5-year workmanship warranty + manufacturer materials warranties.
The Warm Springs Avenue Historic District is listed on the National Register of Historic Places (since 1980). National Register listing primarily affects federal tax credits and federal-funded projects rather than imposing local design review, but the listing reflects the district's architectural significance and the community expectation that significant homes be preserved respectfully.
The East End Historic District is locally designated and requires City of Boise Historic Preservation Commission (HPC) review for any exterior modification visible from the public right-of-way — siding type and color, window replacement, roof material, porch modifications, additions, accessory structures, fencing. Iron Crest handles HPC submittals as part of standard project management. HPC review timelines: 4–8 weeks.
The Old Penitentiary Historic District is also locally designated with HPC review for visible exterior modifications. Same process as East End District.
EPA Lead Renovation, Repair and Painting (RRP) Program applies to virtually every East End project given the 1900–1928 construction wave. Iron Crest carries RRP certification and follows lead-safe work practices including HEPA containment, wet-paste paint scraping, lead-safe disposal, and final clearance testing where required.
Many East End and Warm Springs Avenue homes use geothermal heating from the City of Boise Geothermal District — heat exchanged from naturally hot underground water (174°F at the source). Geothermal heat affects HVAC scope: existing radiant baseboards, hydronic radiators, or fan-coil units must be properly integrated or replaced with appropriate systems. Iron Crest has experience with the Boise geothermal system specifically.
Asbestos testing required for pre-1980 demolition work — common locations include sheet flooring, mastic, popcorn ceilings, pipe insulation, vinyl asbestos tile, and sometimes roofing felt or building paper. East End homes pre-1925 often have plaster-and-lath walls with horsehair binder rather than later drywall — different demolition and repair practices apply.
East End shower materials emphasize period-appropriate aesthetic, durable waterproofing, and finish details matching original architectural language.
Waterproofing — Schluter Kerdi system on every shower
Schluter Kerdi sheet membrane on all shower walls, floors, and curbs. Lifetime warranty when installed by certified installer. Iron Crest is Schluter-certified.
Tile — period-appropriate patterns and materials
Hex mosaic 1-inch or 2-inch tile in white, cream, or black for floor (period-appropriate). Subway tile (3×6 or 4×8 inch) in handmade finish for walls. Basket weave or octagon-and-dot for elevated period detail. Honed marble or quartzite for premium primary applications.
Plumbing fixtures — period-appropriate premium
Kohler Memoirs Stately, House of Rohl Perrin & Rowe Edwardian, Newport Brass Astor for period-appropriate aesthetic. Classic chrome or polished nickel finishes. Pressure-balanced and thermostatic mixing valves.
Glass — frameless low-iron premium
Frameless tempered low-iron glass with period-style hardware (polished nickel or chrome matching plumbing fixtures). Hinged door or sliding bypass.
Heated floor — radiant electric or hydronic geothermal
Schluter Ditra-Heat for typical applications. Where home has geothermal, sometimes hydronic in-floor heating integrated with geothermal system.
Multi-function for premium primary
Rain head ceiling-mount, handheld on slide bar, 2–4 body sprays. Pressure-balanced thermostatic valve. Steam capability optional (premium upgrade).
Plaster restoration around shower
Where shower abuts plaster walls, careful demolition and proper transition to new substrate. Plaster patching where walls remain.
Drain — linear or central with period-style grate
Linear drain (Schluter-Kerdi-Line) for curbless layouts. Central drain (Schluter-Kerdi-Drain) for traditional curb formats. Period-style polished chrome or polished nickel grate finishes.
East End shower remodeling surfaces specific issues during demolition.
- •EPA RRP lead-paint compliance. Universal in pre-1978 East End homes. Cost addition: $1,500–$5,500 for shower scope.
- •Asbestos in pre-1980 mastic or sheet flooring. Common in pre-1980 East End homes. Testing $300–$700. Abatement: $2,500–$6,500.
- •Cast iron drains and galvanized supply lines. Universal in pre-1940 East End homes. Replacement: $1,800–$6,500 for shower-specific.
- •Plaster-and-lath wall demolition. Different practices than drywall. Plaster patching where walls remain: $35–$85 per square foot.
- •Inadequate framing or substrate. Reinforcement: $1,200–$3,500.
- •Outdated electrical including knob-and-tube. GFCI required by code. Bathroom rewire: $2,500–$5,500.
- •Inadequate ventilation. Older bathrooms often have no fan or undersized fan. New high-CFM humidity-sensing fan: $850–$1,800.
- •Failed waterproofing or hidden mold from original assemblies. Universal in pre-1990 showers. Mold remediation: $1,500–$5,500.
- •Geothermal coordination for Warm Springs Avenue. Some homes on geothermal. Coordination for in-floor heating integration: $2,500–$8,500.
Discovery and design (Weeks 1–2)
On-site walkthrough. Lead and asbestos pre-screen. Material direction and fixture selection.
Design finalization and ordering (Weeks 2–4)
Detailed layout drawings. Tile and fixture selections finalized. Plumbing fixture orders placed.
Permitting (Weeks 3–5)
Plumbing and electrical permits.
Demolition (Days 1–4 of work)
EPA RRP lead-safe containment. Asbestos containment as needed. Plaster-and-lath demolition. Discovery walk after demo.
Plumbing and electrical rough-in (Days 4–8)
Plumbing rough-in. Electrical rough-in for heated floor, lighting, fan. Inspection.
Substrate and waterproofing (Days 8–14)
Cement board or Schluter-Kerdi-Board substrate install. Schluter Kerdi membrane install. Heated floor mat install.
Tile install (Days 14–25)
Floor tile (period-appropriate hex mosaic). Wall tile (subway pattern typical). Bench or accent tile. Grout. Caulk.
Glass templating and fabrication (Days 25–35)
Glass templated after tile fully set. Fabrication 5–10 business days.
Fixtures and glass install (Days 35–45)
Period-appropriate plumbing fixture install. Glass install. Lighting trim. Final caulking.
Walkthrough (Days 45–55)
Final inspections. Owner walkthrough. Punch resolution. Tile sealing. 5-year workmanship warranty begins.
East End shower remodeling requires Schluter-certified waterproofing, plaster-and-lath demolition expertise, EPA RRP lead-safe practices, period-appropriate tile and fixture installation, and respectful integration with original architecture.
- City of Boise Historic Preservation Commission — HPC review process, application requirements, design guidelines for East End and Old Penitentiary Historic Districts.
- Idaho State Historic Preservation Office (SHPO) — State-level historic preservation guidance and federal Section 106 review for federally-funded projects.
- City of Boise Geothermal Heating District — Information on the city geothermal heating system that serves Warm Springs Avenue and parts of East End — service connection, system specifications, billing.
- EPA Lead Renovation, Repair and Painting (RRP) Program — Required certification and work practices for renovation in pre-1978 homes — applies to virtually every East End project.
- Idaho DEQ Air Quality (Asbestos) — Testing and abatement guidance for pre-1980 East End homes.
- Idaho Division of Building Safety — Contractor Search — Verify any contractor's RCE license, bonding, and insurance through the official Idaho database.
- City of Boise Planning & Development Services — Building, electrical, plumbing, mechanical permits.
How much does an East End shower remodel cost?
$22,000–$35,000 for secondary bath shower; $28,000–$45,000 for walk-in conversion; $32,000–$48,000 for period-appropriate walk-in; $35,000–$55,000 for claw-foot preservation with walk-in addition; $38,000–$58,000 for premium spa shower with period details.
Will Schluter Kerdi waterproofing be used?
Yes, on every shower without exception. Schluter Kerdi is the industry-standard sheet membrane system. Iron Crest is Schluter-certified — installations carry the manufacturer's lifetime warranty.
Can I keep the original claw-foot tub?
Yes — preservation is encouraged where the tub is in good condition. Iron Crest can refinish the interior surface, clean and refinish the exterior if painted, replace claw feet hardware, and add a new freestanding tub filler. Result is a centerpiece period-correct primary bath element. Combined with new walk-in shower in adjacent space.
What tile patterns are appropriate for the East End?
Hex mosaic floor tile (1-inch or 2-inch in white, cream, or black) is period-appropriate. Subway tile (3×6 or 4×8 inch) for shower walls. Basket weave or octagon-and-dot for elevated period detail. Penny round for accent. Iron Crest provides specific recommendations during design.
What fixtures evoke the period without being literal reproductions?
Kohler Memoirs Stately, House of Rohl Perrin & Rowe Edwardian, Newport Brass Astor — all evoke turn-of-century aesthetic with modern function. Classic chrome or polished nickel finishes typical. Iron Crest specifies period-appropriate fixtures throughout.
How long does an East End shower remodel take?
3–5 weeks for secondary bath shower; 4–6 weeks for walk-in conversion; 5–7 weeks for period-appropriate walk-in; 5–8 weeks for claw-foot preservation with walk-in or premium spa shower.
What about heated floors with geothermal heat?
Where home has City of Boise geothermal connection, sometimes hydronic in-floor heating integrated with geothermal system rather than electric radiant. More efficient operation. Iron Crest coordinates with City system.
Will plaster walls be a problem during demolition?
Iron Crest has specific plaster-and-lath demolition expertise. Different practices than drywall — careful saw-cut for clean transitions, proper backing and patching where walls remain, transition to new substrate where shower modifies walls. Cost: $35–$85 per square foot of plaster repair.
Ready to start your East End / Warm Springs shower remodeling project?
Free in-home consultation, honest contingency-based budgeting, and the experience these older Boise homes require. Iron Crest Remodel — Idaho RCE #6681702, EPA RRP lead-safe certified, $2M general liability, 5-year workmanship warranty.
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