Siding installation in Portland, OR.
James Hardie fiber cement siding installed for the wettest climate in the country, by a crew trained by the people who make it.
What's included in a Cornerstone siding job?
Siding is the difference between a home that looks great for ten years and one that looks great for fifty. In the Pacific Northwest, the wall behind the siding matters as much as the siding itself, so we build the whole assembly, not just the surface.
- →Removal and disposal of existing siding
- →Sheathing inspection and repair where needed
- →Weather-resistive barrier and flashing at every opening
- →James Hardie fiber cement installed to spec, with proper clearances
- →Trim, corners, and soffit finished to match
- →Full site cleanup, every day of the job
Why James Hardie for the Pacific Northwest?
As members of the James Hardie™ ALLIANCE, we install Hardie® fiber cement siding the way it was designed for the wet PNW. It resists moisture, rot, fire, and pests, and it holds paint years longer than wood or vinyl ever will.
The result is curb appeal that holds its value through every Oregon winter, backed by Hardie's 30-year substrate warranty and our own workmanship guarantee.
Preview it in SidingVision →Get an instant ballpark →What warranty do I get?
Every Cornerstone siding project is backed by manufacturer warranties on materials plus our own written workmanship guarantee. We walk you through exactly what's covered before you sign anything.
All services →Common siding questions
How much does James Hardie siding cost in Portland?
In the Portland metro, Hardie fiber cement siding typically runs $15 to $25 per square foot of wall area, installed, including removal and disposal of your old siding. Where you land in that range depends on the product line, the trim and detail work on the house, and what we find in the wall assembly once the old siding comes off.
Can I put new siding over my old siding?
We do not recommend it in the Pacific Northwest. Overlaying hides the condition of the sheathing and the weather barrier underneath, which is exactly where moisture damage hides on a Portland home. A proper job removes the old siding, inspects and repairs the wall, and rebuilds the assembly from the sheathing out.
What is the most durable siding for the Pacific Northwest?
James Hardie fiber cement. It does not rot, does not swell, holds paint far longer than wood, and carries a 30-year substrate warranty. In a climate with forty-plus inches of annual rain, that combination is hard to beat, and it is what we recommend for most Portland homes.
What warranty do I get on new siding?
Hardie's 30-year substrate warranty on the material, plus our own written workmanship guarantee on the install. We walk you through exactly what is covered before you sign anything, so there are no surprises later.
Related reading.
Cost GuidesHow Much Does James Hardie Siding Cost in Portland?James Hardie siding cost in Portland: 2026 per-square-foot ranges, what a square means, HardiePlank vs. Panel vs. Shingle pricing, and the 30-year warranty.August 4, 2026SidingFiber Cement vs LP SmartSide vs Cedar: PNW Siding GuideFiber cement vs LP SmartSide vs cedar vs vinyl: which siding actually survives Portland rain? Real cost ranges, upkeep cycles, and our honest pick.August 4, 2026Ready to talk about your siding project?
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