Siding Installation in the East End / Warm Springs
HPC-compliant siding for East End historic homes — period-appropriate profiles, cedar restoration, James Hardie matching, original detail preservation.
Quick answer
Sometimes — it depends on HPC review of your specific elevation. Iron Crest verifies HPC scope at consultation and prepares the submittal, but the substitution of fibre cement for cedar is a Commission decision, so confirm it with Boise PDS and the HPC before ordering material.
Siding installation in the East End and Warm Springs Avenue is shaped by City of Boise Historic Preservation Commission requirements. HPC reviews exterior siding work in the East End and Warm Springs Avenue Historic Districts and typically requires preservation of original siding where condition allows or replacement with materials matching original profile and aesthetic. Cedar lap or shake siding is original to most pre-1928 East End homes — HPC strongly prefers cedar restoration over wholesale replacement, and where replacement is justified, real cedar matching is often required. In some cases James Hardie fiber cement is HPC-acceptable when profile, exposure, and texture closely replicate cedar. Iron Crest's East End siding work emphasizes restoration of original cedar where condition allows (spot replacement, spot rot repair, comprehensive prep before paint), HPC-acceptable replacement only where restoration isn't viable, period-appropriate detailing for any new work including correct exposure, butt joints, corner detailing, and trim profiles. We work across the East End bungalow belt and Warm Springs Avenue.
Siding strategy in the East End depends heavily on era and what's currently on the home.
Pre-1900 Warm Springs Avenue mansions
Original siding typically wood lap (cedar, fir, or pine) or wood shake. Significant architectural detailing — corner boards, water tables, frieze boards, decorative trim. Restoration strongly preferred. Where replacement is justified, wood-matching essential.
1900–1925 Craftsman estates and bungalows
Cedar lap or wood shake universal. Original siding when intact often refinishable with proper preparation. Sometimes top one or two clapboards along ground are rotted requiring spot replacement. Premium scope often includes complete cedar restoration with new oil-based primer and paint.
1925–1940 transitional homes
Cedar lap, wood shake, sometimes brick, sometimes stucco. Style-specific siding decisions. Restoration preferred where viable.
Post-1940 East End infill
Sometimes outside Historic District boundaries. Various sidings — fiber cement, vinyl (older), engineered wood. Modern restoration practice appropriate.
East End siding projects cluster into recognizable shapes by era and condition.
1. The Cedar Restoration
Comprehensive restoration of original cedar lap or shake siding. Spot replacement of rotted areas with matching profile and exposure. Surface prep including failing paint scrape, oil-based stain blocker primer. Premium two-coat paint application. Result is preserved original character with renewed protection.
Target homes: 1900–1928 East End homes with original cedar siding in restorable condition. Permit: typically not required for cedar restoration; HPC review for any visible changes.
2. The Selective Replacement
Mostly intact cedar siding with sections that need replacement (often ground-contact lower clapboards or sections with severe weathering). Replacement uses matching cedar profile and exposure. Other areas restored with prep and paint.
Target homes: East End homes with mixed-condition cedar siding. Permit: building permit; HPC review.
3. The HPC-Acceptable Hardie Replacement
Full siding replacement with James Hardie fiber cement matching original cedar lap profile. Used where original cedar is beyond restoration. HPC review and approval required. Whether fibre cement is accepted in place of cedar on a given elevation is a Commission decision — confirm it with Boise PDS and the HPC before ordering material.
Target homes: East End homes with cedar beyond restoration. Permit: building permit; HPC review with approval contingencies.
4. The Cedar Replacement
Full siding replacement with real cedar matching original profile and exposure. Used where HPC requires wood matching. More expensive than Hardie replacement. Periodic maintenance painting required.
Target homes: East End homes where HPC requires cedar matching. Permit: building permit; HPC review.
5. The Trim Restoration
Restoration of original architectural trim — corner boards, water tables, frieze boards, decorative trim. Sometimes carved or millwork details. Wood replacement and refinishing. Often combined with cedar restoration or partial siding work.
Target homes: East End homes with substantial original trim worth restoring.
The East End / Warm Springs is made up of distinct sub-neighborhoods, each with its own remodeling personality.
Warm Springs Avenue Historic District
The premier residential corridor along Warm Springs Avenue. The City of Boise records it as listed on the National Register of Historic Places in 1979 and designated a local historic district by Boise City in 1996, with a period of significance of 1910–1940 and predominant styles of Queen Anne, Colonial Revival, Mission Revival, Tudor Revival and Bungalow. The City describes the lots on the south side of the avenue as more than an acre, with the north-side parcels more uniform and served by rear alleys. Many homes use geothermal heating drawn from the underlying hot-water aquifer; the City of Boise describes its system as "one of the oldest and largest geothermal systems in the world".
East End — Bungalow Belt
The dense bungalow neighborhoods between Broadway Avenue and the Foothills. The City of Boise designated the East End Historic District a local historic district in 2004, describes it as a thirty-nine-block residential neighbourhood developed through subdivisions beginning in 1890, gives it a period of significance of the 1910s–1940s, and records Craftsman Bungalow as its largest single style at 29 percent, alongside Queen Anne, American Foursquare, Mission Revival and Spanish Eclectic. The City records the district's parcels as small — typically 25 feet wide and 122 feet deep, with corner lots 30 feet wide. Local designation means Historic Preservation Commission review applies to exterior work.
Reserve Street area
The corridor along Reserve Street north of the river. A mix of older homes, post-war ranches and later infill. Much of this area sits outside a designated historic district — confirm your specific address with Boise Planning & Development Services.
East Boise — Table Rock transitional
The transitional zone between the East End and the Foothills, climbing from Warm Springs Avenue up toward Table Rock. Some properties have geothermal heat extending from the Warm Springs district.
Reserve / Eastland infill streets
Smaller streets and infill developments throughout the broader East End. Lots vary widely, and parts of this area sit outside the formal historic district boundaries — confirm your specific address with Boise Planning & Development Services.
Most Boise siding projects run $8,500 to $32,000 — the band published on our Boise siding page. The ranges below run higher than that band because of the East End's pre-1928 housing stock, Historic Preservation Commission review on any change visible from the street, and EPA RRP lead-safe practice on effectively every address. East End siding pricing reflects HPC requirements, period-appropriate detailing, EPA RRP lead-safe protocols, and the cost difference between cedar matching and Hardie alternative.
East End / Warm Springs siding installation ranges
Trim restoration (Original architectural trim restoration): $8,500–$22,000 / 2–4 weeks end to end
Cedar restoration (Comprehensive restoration of original cedar with prep and paint): $35,000–$65,000 / 3–5 weeks end to end
Selective replacement (Spot replacement of failed sections with cedar matching): $45,000–$85,000 / 5–8 weeks end to end
HPC-acceptable Hardie replacement (Full replacement with James Hardie matching cedar profile): $85,000–$145,000 / 10–14 weeks end to end
Cedar replacement (Full replacement with real cedar matching original): $95,000–$145,000 / 10–14 weeks end to end
Pricing assumes Iron Crest's standard scope: HPC submittal where applicable, EPA RRP lead-safe practices throughout pre-1978 work, comprehensive WRB and flashing detailing, period-appropriate trim profiles and detailing, and a 3-year workmanship warranty + manufacturer materials warranties (typically 30 years on James Hardie, lifetime on cedar with proper maintenance).
The City of Boise designates ten historic districts. Two of them cover this area: the Warm Springs Avenue Historic District (National Register 1979, local designation 1996) and the East End Historic District (local designation 2004). Both are locally designated, so Historic Preservation Commission review applies to visible exterior changes in both — a National Register listing alone would not create local design review, but Warm Springs Avenue carries the local designation as well. Confirm the current boundaries and review requirements with Boise Planning & Development Services before an exterior scope is priced.
HPC review is required for any exterior modification visible from the public right-of-way — siding type and colour, window replacement, roof material, porch modifications, additions, accessory structures, fencing. Interior work is exempt from HPC review. Iron Crest handles HPC submittals as part of standard project management. HPC review happens at the Commission's monthly meeting and can add several weeks; confirm current timelines with Boise PDS. Building Division: (208) 608-7070. Planning & Zoning: (208) 608-7100.
Note that the 20 percent federal historic rehabilitation tax credit applies only to income-producing property under National Park Service rules. It does not reach an owner-occupied house, whatever district the house sits in.
EPA Lead Renovation, Repair and Painting (RRP) Program applies to virtually every East End project given the pre-1978 construction. Iron Crest follows EPA RRP 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. 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 is recommended 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. Older East End homes often have plaster-and-lath walls with horsehair binder rather than later drywall — different demolition and repair practices apply.
Siding material specification for East End homes prioritizes preservation of original character, period-appropriate detailing, and HPC compliance.
Real cedar — restoration or replacement
Original East End siding is universally cedar. Real cedar replacement matches original profile, exposure, butt joints, and corner details. More expensive than fibre cement; we quote it per project rather than publishing a per-square-foot rate, because profile matching and milling drive the number. It is HPC-preferred when restoration isn't viable.
James Hardie fiber cement matching cedar
HardiePlank lap siding (5.25-inch or 7.25-inch exposure) with cedar woodgrain texture replicates original cedar. HardieShingle for shake aesthetic. Acceptable only when the Commission judges the match sufficient — confirm with Boise PDS and the HPC before ordering. $10–$16 per square foot installed, the rate published on our Boise siding page.
Period-appropriate trim profiles
Corner boards, water tables, frieze boards, window/door casings, sometimes decorative trim. Iron Crest fabricates or sources matching profiles. Cedar trim sometimes preferred over fiber cement for visual continuity. Cost: $25–$95 per linear foot for premium trim work.
WRB and flashing — comprehensive details
Tyvek HomeWrap or premium WRB. Proper flashing tape at all transitions, window/door rough openings, and penetrations. Z-flashing at horizontal transitions. Pan flashing at all rough openings.
Color and aesthetic strategy
HPC-compliant colors — Victorian/Colonial Revival mansions on Warm Springs may have rich saturated multi-color palettes. Craftsman bungalows in East End belt typically warm earthtones. ColorPlus pre-finished James Hardie offers stocking colors with 15-year fade warranty. Field-painted cedar with premium acrylic paint and proper primer.
EPA RRP lead-safe demolition
Universal in pre-1978 East End siding work. HEPA containment, wet-paste paint scraping, lead-safe disposal. Cost addition: $4,500–$15,500 depending on scope.
Period-appropriate butt joints and details
Original cedar lap typically had specific butt joint patterns and corner board treatments. Iron Crest replicates original detailing in any replacement work for visual continuity.
Underlayment — period-appropriate
Where appropriate (especially behind cedar restoration), traditional building paper is sometimes specified by HPC. Modern WRB more common but Iron Crest accommodates HPC preferences.
East End siding projects surface specific issues during pre-construction.
- •Universal pre-1978 lead-based paint requiring EPA RRP protocols. Cost addition: $4,500–$15,500.
- •Asbestos in pre-1980 building paper or roofing felt. Sometimes asbestos-containing materials in original construction. Testing $300–$700 per sample. Abatement: $4,500–$15,500.
- •Failed sheathing requiring replacement. Original plywood or board sheathing sometimes shows water damage. Replacement: $8–$15 per square foot.
- •Window and door integration issues. Original window flashing often inadequate. Sometimes warrants window replacement during siding work for proper integration. Window replacement: $1,800–$3,800 per window for HPC-acceptable.
- •Termite or wood-destroying organism damage. Less common in Boise but occasional. Repair: $2,500–$15,000 depending on extent.
- •Foundation transition and capillary break. Original construction sometimes lacks proper capillary break at foundation-to-wall transition. Detailing addition: $1,800–$4,500.
- •HPC review for siding type or profile change. Mandatory for visible exterior changes. Plan revisions: $2,500–$8,500. Confirm the current review timeline with Boise PDS.
- •Original architectural trim worth preserving. Corner boards, water tables, frieze boards often have substantial period character. Restoration preferred: $25–$95 per linear foot.
- •Cedar shake roof transitions where applicable. Some original East End homes have cedar shake roofs that integrate with siding aesthetic. Coordination: $3,500–$8,500.
Discovery and design (Weeks 1–3)
On-site walkthrough including substrate condition assessment. Lead and asbestos pre-screening. HPC scope verification. Material direction.
HPC submittal and permitting (Weeks 3–8)
HPC submittal with material samples. City of Boise building permit submittal where structural changes. Plan revisions per HPC and City feedback. Permit issued.
Materials ordering (Weeks 6–10)
Cedar or James Hardie ordering 4–8 weeks lead time on premium materials.
Site preparation (Day 1 of work)
Plant and outdoor space protection. Site logistics. Owner property access protocols.
Demolition or restoration prep (Days 1–7)
EPA RRP lead-safe containment. For restoration: pressure wash, scraping with HEPA collection, sanding. For replacement: existing siding removal. Substrate inspection.
WRB and flashing (Days 7–14)
WRB installation. Flashing detail at all penetrations, transitions, and rough openings. Inspection.
Siding install (Days 14–55)
Cedar or James Hardie installation per material requirements. Period-appropriate detailing throughout. Trim install. Sometimes cedar takes longer due to acclimation.
Trim, painting, and finishing (Days 55–75)
Trim installation. Caulking. Field painting (if not factory-pre-finished or for cedar restoration). Final flashing details.
Punch and walkthrough (Days 75–95)
Final inspection. Owner walkthrough. Punch list resolution. Site cleanup. 3-year workmanship warranty begins.
East End siding installation requires HPC compliance fluency, period-appropriate detailing expertise, EPA RRP lead-safe work practices, cedar restoration skill, and original character preservation.
- City of Boise Historic Preservation Commission — HPC review process, application requirements, design guidelines for the East End and Warm Springs Avenue 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 DOPL — Contractor Search — Verify any contractor's RCE registration through the official Idaho DOPL license search.
- City of Boise Planning & Development Services — Building, electrical, plumbing, mechanical permits.
Can I replace cedar siding with James Hardie in the East End?
Sometimes — it depends on HPC review of your specific elevation. Iron Crest verifies HPC scope at consultation and prepares the submittal, but the substitution of fibre cement for cedar is a Commission decision, so confirm it with Boise PDS and the HPC before ordering material. Cost: Hardie ($85,000–$145,000) versus real cedar ($95,000–$145,000) for typical East End home.
How much does cedar restoration cost?
$35,000–$65,000 for typical East End bungalow. Includes spot replacement of rotted areas, surface preparation including failing paint scrape with HEPA collection, oil-based stain blocker primer, and premium two-coat acrylic paint. EPA RRP lead-safe protocols throughout.
How long does cedar last with proper restoration?
12–15+ years between repaints with proper preparation and premium products. Cedar is durable when properly maintained — original Boise cedar has often lasted 100+ years. The key is regular paint maintenance and spot repair before damage progresses.
What about HPC review for siding work?
HPC reviews exterior siding work in the East End and Warm Springs Avenue Historic Districts. Material samples, profile drawings, and color samples typically required. Iron Crest prepares HPC submittal as part of standard project management. Plan revisions: $2,500–$8,500. Confirm the current review timeline with Boise PDS.
What if asbestos is found in original building paper?
Some pre-1980 East End homes have asbestos in roofing felt or building paper. Testing first ($300–$700 per sample). Abatement before siding work: $4,500–$15,500. Iron Crest tests pre-1980 substrates before demolition.
How do you preserve original architectural trim?
Original corner boards, water tables, frieze boards, window/door casings often have substantial period character. Iron Crest assesses condition during walkthrough — restoration preferred where viable, sometimes selective replacement of damaged sections. Cost: $25–$95 per linear foot for trim work.
Can you match the original cedar profile?
Yes for both real cedar replacement and James Hardie matching. Iron Crest sources or fabricates matching profiles. Original cedar lap exposure and butt joint patterns replicated in any replacement work.
What about windows during siding replacement?
Sometimes logical to combine siding replacement with window replacement to ensure proper flashing and window upgrade. HPC strongly prefers original window restoration; where replacement is justified, HPC-acceptable simulated divided light replacement: $1,800–$3,800 per window.
Ready to start your East End / Warm Springs siding installation project?
Free in-home consultation, honest contingency-based budgeting, and the experience Boise homes require. Iron Crest Remodel — Idaho RCE #6681702, EPA RRP lead-safe work practices, $2M general liability, 3-year workmanship warranty.
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