Hillsboro’s Go-To Siding Replacement Contractor — Honest Assessment, Correct Installation
Most Hillsboro siding failures follow a predictable timeline: LP siding installed during the city's 1990s construction boom absorbs moisture at the edges, swells, cracks, and eventually allows sustained moisture into the sheathing behind it.
VResh removes everything, finds the rot, repairs the structure, installs a proper drainage plane and flashing at every opening, then puts the new siding on top. Not the other way around. James Hardie fiber cement, LP SmartSide, cedar, and vinyl — all installed correctly. EPA Lead-Safe Certified. Licensed OR #241979 | WA #VRESHCL776ND. Free written estimates. (503) 272–6436.
VResh is owner-operated. Vlad personally oversees every Hillsboro siding project — you know who is accountable for the outcome.
Why Hillsboro Homeowners Are Replacing Siding Now
Hillsboro's housing stock has a median construction year of 1997 — and the city's major residential build-out happened across the late 1980s through 2000s, exactly the period when two problematic siding materials were being installed at scale across the Pacific Northwest. The wave of Hillsboro homes built during this era is now hitting its first full siding replacement cycle.
Original LP Inner-Seal Siding — The Dominant Failed Material in Hillsboro
Louisiana-Pacific's original Inner-Seal siding, installed widely from the late 1980s through approximately 2000, was the subject of a class-action settlement and is known to fail in damp Pacific Northwest conditions. It was installed on an enormous number of Hillsboro tract homes built during the city's 1990s growth surge. LP Inner-Seal swells at the edges, develops surface cracking and checking, and eventually allows sustained moisture through to the sheathing behind it. If your home's siding has a heavily striated or textured face, shows swelling and cracking at the board edges, and was installed before 2000 — it may be original LP Inner-Seal. VResh identifies and replaces it and assesses the substrate for moisture damage beneath it.
Original 1990s Vinyl — Brittled and at End of Life
Builder-grade vinyl siding from Hillsboro's 1990s construction boom has now been in service for 25–35 years. Original vinyl from this era becomes brittle with age and UV exposure, develops cracks and impact damage that cannot be individually repaired without visible mismatching, and loses its ability to hold its profile at the lock joint. VResh replaces original 1990s vinyl with the same moisture management protocol as any other material — proper WRB, correct flashing at all openings, and correct grade clearance.
Hillsboro's Tualatin Valley Moisture — What It Means for Siding Life
Hillsboro lies in the Tualatin Valley, a location that receives approximately 38 inches of precipitation annually — sustained, wind-driven Pacific rain from November through March. The city's position on the west side of the Portland metro means sustained wet-season exposure with relatively low UV in winter. Siding materials that fail — LP siding and degraded vinyl in particular — allow moisture to reach the sheathing and sit there through long overcast periods. The combination of sustained rain and slow drying is what makes Hillsboro's moisture management requirements similar to the rest of the Pacific Northwest.
What VResh Actually Does on a Hillsboro Siding Project
Walk-in siding contractors give you a number and schedule a crew. VResh gives you an honest assessment of what is on your wall, what is behind it, and what it takes to fix it properly. Here is what that looks like on a Hillsboro home.
Full Removal and Substrate Inspection
Complete removal of existing siding — no installation over existing material. Once the old siding comes off, we inspect every inch of the substrate: sheathing, perimeter framing, and the framing behind every window and door. We document findings before any new material is ordered.
What VResh Finds on Most Hillsboro Siding Projects
- Sheathing moisture damage beneath original LP siding — LP Inner-Seal that has been swelling and cracking for years has been directing moisture into the sheathing behind it. Bottom-course and window-corner sheathing damage is the most common finding.
- Absent or degraded Weather-Resistant Barrier — many Hillsboro homes from the 1990s were built without proper WRB installation or with building paper that has long since degraded. Without this layer, moisture from behind failed siding goes directly into the sheathing.
- Missing window head flashing — the single most commonly skipped step in 1990s-era installation. Water running down from the wall above the window enters the rough opening, saturates the sill plate, and creates the interior water staining homeowners eventually see.
- Missing kickout flashing at roof-to-wall intersections — where a roof surface meets a sidewall at a dormer, addition, or garage-to-house connection. Without kickout, every rain event sends runoff directly into the wall cavity.
Structural Repair Before Any New Siding Goes On
If the substrate assessment found rot, VResh removes all compromised material back to sound wood — no epoxy filler, no working around it. Dry rot on Hillsboro LP siding projects most commonly involves replacing sheathing panels at the bottom two or three courses and sistering or replacing jack studs at window rough openings where water has entered through missing head flashing.
Building the Moisture Management System Correctly
New siding on a wall without a proper drainage plane and flashing is the same problem with a better appearance on top of it.
The Three Steps Most Hillsboro Siding Contractors Skip
- Weather-Resistant Barrier (WRB): New housewrap installed over the full wall, lapped correctly so any moisture that gets behind the siding drains outward. Most Hillsboro LP siding replacements require a full WRB replacement — the original building paper has degraded under the LP.
- Window and door head flashing: A kickout piece above every window and door opening that directs water from the wall surface away from the rough opening. Missing on the majority of 1990s Hillsboro installations and the source of interior water staining above windows.
- Kickout flashing at roof-to-wall intersections: Where a sloped roof surface meets a sidewall. Without kickout diverters, every rain event sends runoff directly into the wall cavity at dormers and additions.
Installation Per Manufacturer Specification
The new siding goes on after the substrate is repaired and the moisture management system is in place. VResh installs James Hardie per Hardie's published requirements: correct grade clearance (minimum 6 inches), correct fastener type (hot-dip galvanized or stainless), correct nailing pattern, correct back-priming of all field cuts. Deviations void the 30-year manufacturer warranty. Corner trim, window and door trim, frieze board, caulking per the manufacturer guide, walkthrough with the homeowner, permit inspection scheduled. Written workmanship warranty at project completion.
Siding Materials for Hillsboro Homes
Not every siding material performs equally in Hillsboro's Tualatin Valley climate. VResh's honest assessment for each option:
James Hardie Fiber Cement — Recommended for Most Hillsboro Homes
James Hardie is the leading siding product for Pacific Northwest homes, and VResh recommends it on the majority of Hillsboro projects. Fiber cement does not rot, does not warp, resists insects, resists fire, and holds paint for 10–15 years. The 30-year limited manufacturer's warranty, when installed by a certified installer, covers the product in Hillsboro's climate. James Hardie's ColorPlus factory-finish option provides a baked-on finish with a 15-year fade warranty — particularly relevant for Intel and Nike employees who plan to hold their home for 10+ years.
LP SmartSide — The Right Replacement for the Right Reasons
LP SmartSide is the contemporary LP product — not the recalled Inner-Seal. The current SmartSide is an engineered wood siding with a 50-year limited warranty, zinc borate treatment that resists moisture and insects, and a wood-grain appearance that accepts paint readily. For Hillsboro homeowners who are specifically replacing original LP Inner-Seal and want to understand the difference: the current SmartSide is a fundamentally different product from the original failure. VResh installs it with the same WRB and flashing standard as James Hardie.
Vinyl Siding — Cost-Effective for the Right Application
Vinyl is a practical choice for Hillsboro rental properties, budget-constrained projects, or applications where low-maintenance cost is the primary driver. Critical: vinyl does not rot, but the sheathing behind improperly installed vinyl does. VResh installs vinyl with a proper WRB and correct flashing — the same standard as fiber cement.
Cedar Siding — For Hillsboro Homeowners Committed to Maintenance
Clear western red cedar is appropriate for Hillsboro homes where the owner is committed to repainting or restaining every 5–7 years. Cedar that lapses in maintenance in Hillsboro's wet Pacific climate deteriorates faster than in drier regions. VResh installs cedar with the same substrate preparation and moisture management as any other material.
Siding Replacement Requirements for Hillsboro Homes
Lead Paint — What Hillsboro Homeowners Need to Know
Approximately 22% of Hillsboro's housing stock was built before 1978 — the federal threshold for lead-based paint regulation — concentrated in the city's older neighborhoods downtown and in the pre-1980 west-side residential areas. The EPA's Lead Renovation, Repair, and Painting (RRP) Rule requires contractors who disturb painted surfaces on pre-1978 homes to hold EPA Lead-Safe Certification, follow specific containment and work practice protocols, and provide written documentation. Violations reach $37,500 per day per violation.
Before Hiring Any Siding Replacement Contractor in Hillsboro for a Pre-1978 Home
Ask directly: "Are you currently EPA Lead-Safe Certified under the RRP Rule?" Then ask to see the certificate.
A contractor without current certification cannot legally disturb painted surfaces on a pre-1978 home, cannot provide the required compliance documentation, and exposes your family to lead dust contamination.
VResh Construction holds current EPA Lead-Safe Certification and provides written documentation at project completion.
Building Permits for Siding Replacement in Hillsboro
Siding replacement in Hillsboro requires a building permit. Building permits in Hillsboro are handled through the Hillsboro Civic Center — 150 E Main Street, Fourth Floor, Hillsboro, OR 97123; phone: 503–681-6153; email: Permits@Hillsboro-Oregon.gov; hours: Monday–Friday, 8:00 am–5:00 pm. Applications can be submitted in person or by email. Inspections are available Monday–Friday, with same-day service when scheduled before 6:00 AM. VResh handles the Hillsboro permit process on your behalf.
What Siding Replacement Costs in Hillsboro, OR
Siding replacement cost in Hillsboro is driven by the home's size (total siding area), material selected, extent of dry rot and structural repair required, and roofline complexity. General planning ranges for a Hillsboro home:
| Siding Replacement — General Cost Ranges (Labor + Materials) | Estimated Cost |
|---|---|
| Vinyl, full home (standard Hillsboro ranch or two-story) | $12,000–$22,000 |
| LP SmartSide, full home | $16,000–$28,000 |
| James Hardie HardiePlank, primed, full home | $18,000–$35,000 |
| James Hardie ColorPlus (factory finish), full home | $22,000–$45,000+ |
| Partial replacement (one or two elevations) | priced per square foot — request estimate |
| Dry rot structural repair | add $2,000–$12,000 depending on extent (highly variable) |
| Spring Special | $500 off siding projects over $8,000 with free moisture and dry rot inspection |
(503) 272-6436 — Call or Text, Available 24/7
We answer calls and texts at any hour. For storm damage, active leaks, or structural emergencies, calling directly is the fastest path to a response.
Siding Replacement FAQs — Hillsboro, OR
Client's Talk
We have a wealth of experience working as main building contractors on all kinds of projects, big and small, from home maintenance and improvements to extensions, refurbishments and new builds.
Areas We Serve
VResh Construction provides window replacement, siding installation, roofing, dry rot repair and full exterior renovation services throughout the Portland metro area and Southwest Washington.
Portland Metro — Oregon
Southwest Washington
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Request Your Free Siding Replacement Estimate in Hillsboro
Whether it is original LP siding replacement on a 1994 Hillsboro two-story, James Hardie installation on a 1990s tract home, dry rot repair at the bottom courses and window corners, or partial siding replacement on one elevation — VResh responds same-day or within 24 hours.