Gresham Siding Replacement Contractor That Fixes the Rot Before the New Siding Goes On
Most Gresham siding failures are not a siding problem — they are a moisture problem hiding behind failing siding for years.
VResh removes everything, finds the rot, fixes the structure, installs a proper drainage plane and correct 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 an owner-operated general contractor. Founder Vlad personally oversees every Gresham siding project — you know who is coming to your home and who is accountable for the outcome.
Why Gresham Homeowners Are Replacing Siding Now
Gresham's housing stock tells the siding story directly. With a median construction year of 1981, approximately 43% of Gresham homes were built during the era when three siding materials dominated the market — wood lap siding, Masonite hardboard, and early LP siding — all of which have reached or exceeded their practical lifespan. The wave of Gresham homes built between 1960 and 1990 is now hitting its first full siding replacement cycle. VResh replaces all three of these materials regularly throughout Gresham and East Multnomah County.
Masonite Hardboard — The Most Common Failed Material in Gresham
Masonite hardboard siding was installed on enormous numbers of Gresham homes built in the 1970s and 1980s. Masonite was a cost-effective material when installed, but it absorbs moisture at the edges and bottom courses, swells, cracks, and eventually crumbles from the outside in.
Once bottom-course Masonite begins to fail, the moisture that gets behind it reaches the framing — and dry rot at the bottom plates and mudsill follows. Homes with Masonite on the wall today need assessment: how far has the damage progressed? VResh inspects for substrate damage on every Masonite project before any new siding is specified.
Early LP Siding — A Recall Material Still on Many Gresham Walls
LP SmartSide is a well-performing contemporary product. But the original Louisiana-Pacific Inner-Seal siding installed in the late 1980s and 1990s is a different story — it was the subject of a class-action settlement and is known to fail in damp climates.
Gresham's rain profile is exactly the environment where original LP siding deteriorates fastest. If your home's siding has a heavily textured or striated face, is showing swelling and cracking at the edges, and was installed before 2000, it may be original LP Inner-Seal. VResh identifies and replaces original LP siding and assesses the substrate for moisture damage beneath it.
Gresham's Moisture Environment — What It Means for Siding Life
Gresham sits at the eastern edge of the Portland metro, where Johnson Creek runs westward and Columbia Gorge wind events reach from the northeast. The combination of Willamette Valley rain, Johnson Creek corridor moisture, and Gorge wind-driven rain events creates a moisture environment that accelerates exterior material failure on the east side.
Homes that face west or southwest are exposed to the prevailing storm track. Homes near the Sandy River or lower in the Gresham topography see higher ambient moisture year-round. VResh accounts for Gresham's specific exposure when making material recommendations and installation decisions.
What VResh Actually Does on a Gresham 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 will take to fix it properly. Here is what that looks like from start-to-finish on a Gresham home.
Full Removal and Substrate Inspection
Full siding removal — not installation over existing material. Once the old siding is off, we inspect every inch of the substrate: sheathing, perimeter framing, sill plates, and the framing behind every window and door. We document what we find in writing before any new material is ordered.
What We Find on Most Gresham Homes
- Bottom-course sheathing saturated from insufficient grade clearance or splash-back — extremely common on Gresham ranches from the 1970s and 1980s.
- Dry rot in the framing behind window corners — caused by missing or failed head flashing that has allowed water to run into the rough opening for years.
- Absent or degraded building paper — original kraft paper that has lost all moisture resistance.
- On pre-1978 homes: lead-based paint on siding and trim — requiring EPA RRP protocols from the first day of demo.
Structural Repair Before New Siding
All compromised material is removed back to sound wood before any new siding is installed. No patching, no fillers, no shortcuts. VResh builds this step into the project scope from the beginning — not as a surprise change order after demo.
Dry rot repair on Gresham homes most commonly involves replacing sheathing panels at lower courses, repairing or replacing window framing members, and occasionally addressing sill plate or mudsill damage caused by long-term moisture exposure.
Moisture Management System Installation
New siding is only as good as the system behind it. VResh installs a complete moisture management system so water drains outward instead of into the structure.
The Three Steps Most Gresham Siding Contractors Skip
- Weather-Resistant Barrier (WRB): full-house wrap installation properly lapped to direct water outward.
- Window and door head flashing: prevents water from entering rough openings above windows and doors.
- Kickout flashing at roof-to-wall intersections: diverts roof runoff away from wall cavities at critical junctions.
Siding Installation and Final Finishing
Once the structure and moisture system are complete, siding is installed per manufacturer specifications. VResh installs fiber cement siding with correct clearances, fasteners, layout, and detailing to meet warranty requirements.
- Minimum 6-inch clearance from grade
- Hot-dip galvanized or stainless fasteners
- Proper exposure and fastening patterns
- Back-priming of all field cuts
Final steps include trim installation, proper caulking (not over-sealing), full site cleanup, permit inspection, and a final walkthrough. Written workmanship warranty is issued at completion.
Siding Materials — What Works in Gresham's Climate
Not every siding material performs equally in Gresham's moisture environment. Here is VResh's straightforward assessment of each material's suitability for East Multnomah County conditions.
James Hardie Fiber Cement — Recommended for Most Gresham Homes
James Hardie is the leading siding product for Pacific Northwest homes, and VResh recommends it on approximately 43% of Gresham 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 on Gresham's exposure conditions.
James Hardie's ColorPlus factory-finish option — a baked-on finish with a 15-year fade warranty — eliminates the need for field painting and is particularly well suited to Gresham homes that will be sold within the next decade, where the pre-finished appearance holds up better at listing than field-painted siding.
LP SmartSide — Strong Alternative for Wood Character
LP SmartSide (the contemporary product, not the recalled original LP Inner-Seal) is an engineered wood siding with a 50-year limited warranty that accepts paint readily and provides wood-grain character. It is generally priced between vinyl and James Hardie and is an excellent choice for Gresham homes where the homeowner wants the look of wood without the maintenance demands of cedar. VResh installs LP SmartSide with the same moisture management protocol as James Hardie.
Vinyl Siding — Cost-Effective for the Right Application
Vinyl is a cost-effective choice for Gresham rental properties, budget-constrained projects, and applications where long-term low-maintenance cost is the primary driver. Important: 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 Committed Homeowners
Clear western red cedar is visually distinctive and appropriate for Gresham homes where the owner is committed to regular maintenance — repainting or staining every 5–7 years. Cedar that lapses in maintenance in Gresham's damp 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 Gresham Homes
Lead Paint — What Gresham Homeowners Need to Know
With a median construction year of 1981, approximately 43% of Gresham's housing stock was built before 1978 — the federal threshold for lead-based paint regulation. Pre-1940 homes in Gresham's historic downtown core represent approximately 2.7% of the city's housing stock and have the highest lead paint concentration. Federal law — 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 Contractor in Gresham 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 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 Gresham
Siding replacement in Gresham requires a building permit. Permits are handled through the Gresham City Hall, Building Permits Division — 1333 NW Eastman Pkwy, Gresham, OR 97030; phone: 503–618-2845; hours: Monday–Friday, 8:00 am–4:00 pm. Gresham uses an online permit submission portal; one-stop permits for siding are typically processed within a few business days. Inspections are available Monday–Friday, submit online before midnight for next-day scheduling. VResh handles the Gresham permit process on your behalf.
What Siding Replacement Costs in Gresham, OR
Siding replacement cost depends on total wall area, material selection, trim complexity, and the extent of dry rot repair discovered after removal. General planning ranges:
| Siding Replacement — General Cost Ranges (Labor + Materials) | Estimated Cost |
|---|---|
| Vinyl siding — full home (standard Gresham ranch) | $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 siding replacement (one or two elevations) | priced per sq. ft. — request estimate |
| Dry rot structural repair (after removal) | $2,000–$12,000+ depending on extent |
| Seasonal offer | $500 off projects over $8,000 + free moisture & 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 — Gresham, 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.
Serving Areas
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 Estimate in Gresham
Whether it is a Masonite hardboard replacement on a 1970s Gresham ranch, James Hardie installation on a newer East County home, dry rot repair at the bottom courses, or a partial siding replacement on one elevation — VResh responds same-day or within 24 hours and provides a clear written estimate. Gresham is core territory: crews are on-site regularly and estimate visits are available within 2–4 business days.