
From James Hardie fiber cement to LP SmartSide engineered wood — we handle material selection, weather barrier installation, and precision siding application from foundation to soffit.
Boise homeowners face a siding challenge that few other western cities can match: a climate that swings from 15°F ice storms in January to 105°F heat domes in July, compounded by more than 300 days of intense high-desert ultraviolet radiation that degrades inferior materials at an accelerated rate. Whether you own a 1910 Craftsman bungalow in the North End, a mid-century ranch on the Bench, or a contemporary two-story in Harris Ranch, the siding you choose will either protect your investment for decades or leave you facing costly rot, fade, and failure within years. Iron Crest Remodel specializes in siding installation across Boise's diverse neighborhoods, matching the right product to each home's architectural heritage, exposure, and long-term ownership goals. From James Hardie fiber cement to LP SmartSide engineered wood, we bring the expertise Boise's climate demands.
Protect your home and transform its curb appeal with professionally installed siding built for Idaho weather.

Siding is your home's first line of defense against wind, rain, snow, UV exposure, and temperature extremes — and in the Treasure Valley, those conditions are intense. Boise homes experience summer temperatures exceeding 100 degrees, winter lows well below freezing, rapid temperature swings of 40-50 degrees in a single day, and occasional wind-driven rain and hail. Professional siding installation includes removal of old siding, inspection and repair of the underlying sheathing and framing, installation of a code-compliant weather-resistive barrier (house wrap), proper window and door flashing, precision siding application with manufacturer-specified fastening and gapping, trim and corner finishing, and caulking. The three dominant siding materials in the Boise market — James Hardie fiber cement, LP SmartSide engineered wood, and vinyl — each offer distinct performance characteristics, aesthetics, and price points that should be matched to the homeowner's priorities.
Boise homeowners pursue siding installation for a variety of reasons. Here are the most common situations we see:
Not every siding project is the same. Here are the most common project types we complete in Boise:

Installation of HardiePlank lap siding, HardieShingle, or HardiePanel vertical siding. Fiber cement is non-combustible, rot-proof, termite-proof, and available in ColorPlus factory-finished colors with a 15-year color warranty.

Installation of LP SmartSide treated engineered wood siding in lap, panel, or shake profiles. Offers authentic wood grain texture, impact resistance, and a 5/50 year limited warranty. Lighter weight and easier to cut than fiber cement.

Installation of insulated or standard vinyl siding. The most budget-friendly option with zero painting maintenance. Modern vinyl comes in a wide range of styles and colors including board-and-batten and shake profiles.

Replace siding on damaged sections, additions, or specific elevations while matching the existing siding profile and color. Includes weather barrier repair and flashing integration.

Complete siding replacement with coordinated trim — fascia, soffits, corner boards, window and door surrounds, and frieze boards. Creates a fully unified exterior appearance.

Boise has over a century of residential construction, from 1900s Craftsman homes in the North End to 2020s new construction in West Boise and Southeast Boise. This diversity means remodeling contractors encounter a wide range of structural systems, plumbing types, electrical standards, and finish materials.
Craftsman bungalows, Tudor revivals, and foursquare homes with plaster walls, old-growth fir floors, knob-and-tube wiring (in some), galvanized plumbing, and brick or stone foundations. Remodeling these homes requires sensitivity to historic character while updating systems.
Post-war ranch homes and split-levels with hardwood floors, original tile bathrooms, copper plumbing, and 100-amp electrical panels. These homes often need kitchen and bathroom updates, electrical upgrades, and insulation improvements.
Subdivision homes with drywall, builder-grade cabinets, laminate countertops, carpet throughout, and basic builder fixtures. Most plumbing is copper or early PEX. These are the most common candidates for kitchen and bathroom remodels.
Modern construction with PEX plumbing, 200-amp panels, energy-efficient windows, and open floor plans. Remodeling in these homes typically focuses on upgrading builder-grade finishes rather than updating systems.

Material selection affects the look, durability, and cost of your siding. Here are the most popular options we install in Boise:

The gold standard in fiber cement siding. Made from cement, sand, and cellulose fibers. Non-combustible, rot-proof, termite-proof, and dimensionally stable. ColorPlus factory-applied finish provides superior color consistency and a 15-year color warranty.
Best for: Homeowners who want maximum durability, fire resistance, and long-term value

Treated engineered wood siding with authentic wood grain texture. Made from wood strands bonded with resins and treated with SmartGuard process for moisture, fungal, and termite resistance. Lighter than fiber cement and easier to install.
Best for: Homeowners who want wood-grain appearance with engineered durability and lower cost than fiber cement

PVC-based siding that requires no painting, does not rot, and is immune to insect damage. Modern vinyl comes in many styles and colors with improved fade resistance. Insulated vinyl adds R-value and rigidity.
Best for: Budget-conscious projects, rental properties, and homeowners who want zero exterior painting maintenance

Tyvek, Henry Blueskin, or equivalent moisture barrier that wraps the exterior sheathing. Allows interior moisture to escape while blocking exterior water and wind. Critical component of a proper siding installation.
Best for: Required component beneath all siding installations for moisture and air management

Rot-proof trim boards for window surrounds, corner boards, fascia, and decorative elements. PVC (Azek, Versatex) and fiber cement trim will not rot, warp, or require replacement due to moisture damage.
Best for: All exterior trim applications — especially in areas prone to moisture exposure

Here is how a typical siding project works from first contact to final walkthrough:
We inspect your existing siding, sheathing, flashing, and trim. We identify areas of damage, moisture intrusion, rot, and insulation deficiencies. We discuss material options, styles, and colors, and provide a detailed written estimate.
You select your siding material (fiber cement, engineered wood, or vinyl), profile style, color, and trim details. We create an exterior design plan showing siding layout, trim placement, and color coordination with your roof, windows, and other fixed elements.
We pull any required building permits and order siding, trim, weather barrier, flashing, and fasteners. Lead times for factory-finished James Hardie products can run 4-8 weeks; LP SmartSide and vinyl are typically faster.
Existing siding is carefully removed and disposed of. We inspect the underlying sheathing, framing, and insulation for damage, rot, pest activity, and moisture issues. Any damaged sheathing or framing is repaired before new siding goes on.
A code-compliant weather-resistive barrier (house wrap) is installed over the sheathing. All windows, doors, penetrations, and transitions receive proper flashing with manufacturer-approved materials and techniques to prevent water intrusion.
Siding is installed from the bottom up with manufacturer-specified fastening, gapping, and overlap. Corner boards, window and door trim, frieze boards, and soffit panels are installed. All cuts, joints, and transitions are sealed and finished.
All joints, penetrations, and trim connections are caulked with premium exterior sealant. Touch-up paint is applied where needed. A final walkthrough verifies installation quality, flashing integrity, and overall appearance.
Here is what to expect for project duration when planning a siding in Boise:
| Phase | Duration | Details |
|---|---|---|
| Assessment and Material Selection | 1–2 weeks | Exterior inspection, material consultation, color selection, and detailed estimate. Factory-finished color samples are available for review. |
| Material Ordering and Permitting | 2–6 weeks | Material ordering (factory-finished James Hardie can take 4-8 weeks), permit application and approval, and trade scheduling. |
| Old Siding Removal and Sheathing Repair | 2–5 days | Removal and disposal of existing siding, inspection and repair of sheathing and framing, and preparation for weather barrier installation. |
| Weather Barrier and Flashing | 1–2 days | House wrap installation, window and door flashing, and sealing of all penetrations and transitions. |
| Siding and Trim Installation | 5–12 days | Siding installation from foundation to soffit, trim and corner board installation, and detail finishing. Duration depends on home size, material, and architectural complexity. |
| Caulking, Touch-Up, and Inspection | 1–2 days | Final caulking, touch-up painting, cleanup, and walkthrough inspection with the homeowner. |
Boise range: $8,500 – $32,000
Most Boise projects: $16,500
Boise siding costs reflect a combination of regional material pricing, local labor demand, and project complexity specific to Ada County's housing stock. Fiber cement siding (James Hardie) typically runs $12–$18 per square foot installed, while LP SmartSide engineered wood comes in at $10–$16 per square foot. Standard vinyl is available at $6–$10 per square foot but is less commonly recommended given Boise's UV and temperature conditions. The wide range reflects home size (Boise's housing stock spans from 900-square-foot Bench cottages to 3,500-square-foot Harris Ranch estates), story count (second-story scaffolding adds $1,500–$3,000), and the complexity of trim work on historic North End Craftsmans, where accurate reproduction of period details in fiber cement adds 15–25% to material costs. Permitting through the City of Boise typically adds $200–$600 depending on project valuation.
The final cost of your siding in Boise depends on several factors. Here are the biggest cost drivers:
The material choice is the largest cost variable. Vinyl is the least expensive at $5-10/sq ft installed, LP SmartSide is mid-range at $8-13/sq ft, and James Hardie fiber cement is the premium option at $10-16/sq ft installed.
The total square footage of siding surface — determined by the home's footprint, number of stories, and architectural complexity — is the primary quantity driver. A two-story home has significantly more surface area than a single-story.
Removing existing siding, especially multiple layers or materials with asbestos content in older homes, adds labor and disposal costs. Single-layer vinyl removal is fast; multi-layer or cement-asbestos removal is slower and more costly.
Damaged or rotted sheathing and framing discovered after old siding removal must be repaired before new siding goes on. The extent of hidden damage is often unknown until the old siding comes off.
Homes with many windows, doors, corners, gables, and decorative trim elements require more cutting, fitting, and finish work. Simpler facades with fewer interruptions install faster and cost less.
Proper flashing around every window, door, and penetration is essential for preventing water intrusion. The number and size of openings directly affects flashing material and labor costs.
These are the real-world projects we see most often from Boise homeowners:
One of the most common siding projects Iron Crest handles in Boise involves North End Craftsman homes built between 1905 and 1940. These homes typically feature original fir or cedar lap siding, wide corner boards, decorative frieze boards at the roofline, and porch columns that have been painted numerous times over their lifetimes. By the time a homeowner calls us, the paint is failing, the wood is soft in multiple spots, and moisture has often reached the sheathing behind the siding in isolated areas. The project involves careful removal of existing siding, inspection and remediation of any sheathing damage, installation of a modern housewrap moisture barrier, and re-siding with James Hardie HardiePlank lap siding in a profile and width that matches the home's original detailing. Trim boards, corner boards, and frieze details are reproduced in HardieTrim to maintain the architectural character that makes North End homes so desirable. The result looks period-appropriate from the street while delivering modern moisture protection and a 30-year warranty on the fiber cement substrate.
Bench-area ranch homes built in the 1950s through 1970s were frequently resided in the 1990s with the vinyl products popular at that time. Three decades of Boise's UV and heat have left these vinyl installations faded, brittle, and in some cases actively pulling away from the wall framing at the top course. These projects involve removing the aged vinyl (and often the original wood siding underneath, which acts as a time capsule of deferred moisture issues), addressing any sheathing damage, and installing LP SmartSide lap siding or panel siding depending on the home's original profile. LP SmartSide's engineered wood substrate handles Boise's thermal cycling significantly better than vinyl while offering a more natural aesthetic that suits the horizontal Ranch style. The borate treatment in LP SmartSide also provides protection against the occasional carpenter ant pressure that Boise Bench properties near the greenbelt experience.
West Boise subdivisions built in the 1990s and 2000s frequently used T1-11 plywood siding on gable ends and standard vinyl lap siding on the main body of the home. Hail events — more common in Boise's spring transition season when cold air masses collide with warming desert air — can crack vinyl siding and dent T1-11 at points of impact. Insurance-covered partial replacements are a meaningful segment of our West Boise work. These projects typically involve replacing the damaged sections or elevations with a compatible product, navigating the color-match challenge of finding a current product that approximates discontinued 20-year-old colors, and coordinating with insurance adjusters on scope. When color matching is impractical, we often recommend a whole-home upgrade to a fiber cement product at the homeowner's cost delta — the insurance payout covers the base scope while the homeowner invests the difference in a material upgrade.
Harris Ranch and the broader SE Boise growth corridor contain many homes built after 2005 that were originally sided with builder-grade products — thin vinyl lap, T1-11 gable accents, and minimal trim detailing. As these homes enter their second decade, owners looking to differentiate their property in a competitive resale market increasingly invest in a full siding upgrade that brings the home's exterior to a higher standard. These projects typically combine James Hardie lap siding on the main body with Hardie panel or board-and-batten accents on gable ends, creating the mixed-texture look that dominates current design trends in the Treasure Valley. Dark color palettes — Hardie's Iron Gray, Cobblestone, and Boothbay Blue — are particularly popular in the SE Boise market and photograph exceptionally well for listing photos.
A subset of Boise homes — particularly those built in the late 1970s and early 1980s — feature cedar shake siding that was fashionable at the time. After 40+ years, cedar shake in Boise's climate shows cupping, splitting, and moss growth in north-facing exposures. Fire risk is also a consideration in a region where wildfire advisories have become a routine part of summer. Replacing cedar shake with James Hardie's HardieShingle product delivers the same visual texture with Class A fire resistance, zero organic content to feed mold or insects, and a product that will not cup, split, or require the annual pressure washing that keeps cedar shake presentable. These projects are technically detailed because shake removal and proper flashing integration at penetrations and corners requires experience with the original installation patterns.

Solution: We remove old siding, repair damaged sheathing and framing, install a proper weather-resistive barrier with correct lapping and sealing, and flash all openings to create a watertight exterior shell.
Solution: We replace failed siding with modern materials rated for Idaho's UV and temperature extremes. Fiber cement and engineered wood hold their color and shape far longer than older vinyl or untreated wood.
Solution: We install siding with manufacturer-specified gapping, use backer rod and premium caulk at all joints and penetrations, and ensure every seam and transition is properly sealed.
Solution: We replace damaged sections and install fiber cement or other pest-resistant materials. James Hardie siding is immune to woodpecker damage, termites, and rot.
Solution: Many older Treasure Valley homes have siding installed directly over sheathing without house wrap or proper flashing. Our complete re-side includes a full weather barrier and flashing system as a standard component.

Boise has a semi-arid, four-season climate with hot, dry summers (90-105°F), cold winters (15-35°F), and low annual precipitation. This climate directly affects material choices, construction scheduling, and long-term durability of remodeling work.
Exterior materials must handle dramatic temperature swings. Windows need strong thermal performance. Interior comfort depends on insulation quality and HVAC sizing.
Wood materials can dry, shrink, and crack. Hardwood floors may develop gaps in winter. Bathroom ventilation is still critical because bathrooms create localized high-humidity environments.
Exterior tile, concrete, and masonry must handle freezing and thawing without cracking. Foundation work has specific frost-depth requirements in the Boise area.
Exterior paint, siding, and stain fade faster under constant UV. South-facing and west-facing surfaces require UV-resistant materials and more frequent maintenance.
Foundation and exterior work is best scheduled March through November. Interior remodeling can happen year-round. Winter concrete pours require special cold-weather precautions.
Boise's most historic and walkable neighborhood, with tree-lined streets, Craftsman bungalows, Tudor revivals, and mid-century homes dating from 1900 to 1960. The North End Historic District adds design review requirements for exterior work.
Common projects in North End:
A mix of established 1970s-1990s homes and newer master-planned developments like Harris Ranch. Homes range from mid-century ranch-style to modern custom builds with foothills views.
Common projects in Southeast Boise / Harris Ranch:
An elevated neighborhood south of downtown with a mix of post-war homes from the 1940s-1970s and newer infill construction. Known for its views and access to the Greenbelt.
Common projects in Boise Bench:
A large area with subdivisions spanning from the 1980s through the 2010s. Many homes are builder-grade with standard finishes that homeowners upgrade as the homes age.
Common projects in West Boise:
Every Boise neighborhood has different housing stock, homeowner priorities, and project considerations. Here is what siding looks like in each area:
Permit authority: City of Boise Planning and Development Services
Online portal: https://pds.cityofboise.org
Here are the design trends we see most often in Boise siding projects:
Boise's housing market has appreciated significantly over the past decade, with median home values rising from approximately $180,000 in 2015 to over $450,000 in recent years. This appreciation makes remodeling an increasingly attractive investment — homeowners can invest $30,000-80,000 in a kitchen or bathroom remodel and see it reflected in their property value. The competitive market also means that updated, well-maintained homes sell faster and for higher prices than comparable homes with outdated finishes.

Avoid these common pitfalls Boise homeowners encounter with siding projects:
Better approach: Request samples of the specific vinyl product being considered and research its UV inhibitor rating and warranty terms. Compare the 10-year and 20-year total cost of ownership — including anticipated repainting or replacement — against the higher upfront cost of fiber cement with a ColorPlus factory finish. On south and west elevations in particular, the performance gap between vinyl and fiber cement in Boise's UV environment is significant enough that most homeowners who run the numbers choose the upgrade.
Better approach: Any siding installation that goes over existing siding without full removal and substrate inspection is a liability. The original siding may be concealing moisture damage, rot, or pest activity that will continue to progress underneath the new installation. Removal and inspection adds cost and time, but it eliminates the possibility of discovering (too late, and at much greater expense) that the wall framing behind the beautiful new siding has been deteriorating for years.
Better approach: Boise's high-desert light is more intense and slightly different in quality than coastal or Midwest environments. Colors that look rich and saturated on a small chip in an interior space often read as washed-out or harsh on large exterior wall surfaces in direct sunlight. Order large-format sample boards from your siding manufacturer or request to see the color installed on a completed home in your neighborhood before committing. Many of Hardie's ColorPlus colors are specifically designed to perform well in high-UV western environments — your contractor should be able to show you local installed examples.
Better approach: The most expensive siding failures in Boise are not siding substrate failures — they are moisture intrusion events at window and door penetrations where inadequate flashing allowed water to enter the wall cavity over years or decades. Self-adhered flashing membrane at window heads and proper step-flashing integration at roofline transitions are non-negotiable details. Any contractor who treats these as optional upgrades rather than standard practice is creating future liability that will fall on the homeowner.
Better approach: North End homeowners in or near the historic district should verify their property's contributing status and any applicable design guidelines before selecting siding profiles and colors. The City of Boise's Historic Preservation staff is accessible and helpful — a pre-application conversation can clarify what's permitted under staff-level approval versus what requires full commission review. Working within the guidelines is not onerous for most siding replacements, but discovering mid-project that a profile or color choice requires commission approval creates delays and potential contract changes that are entirely avoidable with early due diligence.
Yes — and it's specifically why we recommend it as the primary product for Boise's climate. James Hardie manufactures its HZ5 product line for climates characterized by freeze-thaw cycling and significant temperature range, which describes Boise precisely. The fiber cement substrate is inorganic, so it does not swell, shrink, or degrade in response to moisture or UV in the way that wood or vinyl does. The ColorPlus factory finish system applies a primer and four topcoats in a factory oven process that produces paint adhesion and UV resistance far superior to any field-applied system. The 15-year fade and peel warranty on ColorPlus products is backed by Hardie and is meaningful in our market, where standard field-painted products on south and west elevations typically need attention within 7–10 years.
Sometimes, but the decision should be based on a thorough inspection rather than optimism about what's original. Original fir siding on North End homes was high-quality material — old-growth fir is denser and more rot-resistant than the second-growth available today — and sections in protected locations (north-facing walls under deep eaves, for example) can still be structurally sound after 80-plus years. However, the siding on south and west elevations, around windows, and at the base course is almost always compromised after a century of Boise weather. Our standard approach is to remove all siding, inspect 100% of the substrate, remediate any soft or damaged areas, and then make a project-by-project decision. We document all findings in writing and present the homeowner with options before proceeding. Keeping original siding under new siding is not a practice we recommend — it traps moisture and masks ongoing deterioration.
Most full re-sides on Boise homes take between one and three weeks of active work depending on home size, story count, substrate remediation scope, and product type. The schedule in the estimate includes all phases from removal through final caulking and cleanup. As for timing, spring and fall are the sweet spots in Boise — temperatures are moderate, crews work comfortably, and caulk and paint (if applicable) cure properly. Summer siding installation is entirely feasible and is when we do much of our volume, but extremely high temperatures affect caulk application and working conditions on south exposures. We avoid fiber cement installation during the coldest winter weeks when overnight temperatures drop below 20°F, as the caulk systems used at trim joints require minimum temperature thresholds to cure properly. Winter project booking is common — the installation simply schedules into the early spring window.
Pure re-side projects — removing existing siding and installing new siding without structural modifications — generally do not require a City of Boise building permit. However, if your project includes window replacements, structural repairs to wall framing, or changes to the building envelope that affect egress or fire separation, permits may be required. Properties within the North End Historic District may require a Certificate of Appropriateness from the City of Boise Historic Preservation staff or Commission depending on the scope and the property's contributing status. We verify permitting requirements as part of our pre-contract scope process and include any required permit fees and administrative coordination in our project proposals.
Not universally bad, but significantly outperformed by fiber cement and engineered wood in Boise's specific climate. The core issue is that vinyl's UV degradation timeline is meaningfully compressed at Boise's elevation and sun intensity. On south and west elevations, standard vinyl begins to show color fade and surface chalking within 8–12 years under Boise conditions, and thermal expansion at 100°F-plus summer temperatures causes the characteristic wave and buckle pattern in improperly installed or aging vinyl. Premium vinyl products with thicker walls and enhanced UV inhibitor packages perform better and extend this timeline, but they approach the installed cost of LP SmartSide without matching its longevity. We install vinyl when clients request it and when budget constraints make it the only practical option, but we present the full performance comparison so homeowners can make an informed decision.
James Hardie fiber cement siding is the top choice for durability, fire resistance, and long-term value in the Boise climate. LP SmartSide offers similar performance at a lower cost with a more wood-like texture. Vinyl is the most budget-friendly but offers less impact resistance and aesthetic quality.
James Hardie fiber cement siding lasts 40-50+ years. LP SmartSide engineered wood lasts 30-40 years. Quality vinyl siding lasts 20-30 years. Factory-applied color finishes on fiber cement and engineered wood extend the interval between repainting.
In most Treasure Valley jurisdictions, full siding replacement requires a building permit — especially if the project involves sheathing repair or weather barrier installation. We handle all permit applications and inspections.
Full siding replacement for a typical single-story home in the Boise area runs $12,000-25,000 for vinyl, $18,000-35,000 for LP SmartSide, and $22,000-45,000+ for James Hardie fiber cement. Costs depend on home size, material, trim scope, and repair needs.
In some cases, new siding can be installed over existing siding — but we generally recommend removing old siding so we can inspect and repair the sheathing, install a proper weather barrier, and ensure a flat, secure substrate for the new material.
A typical full re-side of a single-story home takes 2-3 weeks of on-site work. Two-story homes and complex projects take 3-4 weeks. Material lead times (especially factory-finished colors) add 2-6 weeks before construction starts.
For most Boise homeowners, yes. Hardie siding offers superior fire resistance, impact resistance, color retention, and lifespan compared to alternatives. The higher upfront cost is offset by lower maintenance, fewer repairs, and longer intervals between repainting.
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