Anacortes Siding Homeowners in Anacortes ask us a version of the same question almost every week: "Do you do vinyl?" or "What about LP SmartSide, we got a bid for that too." The honest answer is no — we install James Hardie fiber cement siding, exclusively, on every job we take on. That's not a marketing gimmick or a manufacturer kickback. It's a standard we set after years of tear-offs, warranty claims, and repair calls on siding that simply wasn't built for this corner of Skagit County.
Fidalgo Island sits where salt air off Rosario Strait meets some of the wettest weather in the Pacific Northwest. Add a moss season that can run eight months out of the year on north-facing walls, and you have a climate that punishes any siding product with a weak point. This page explains what that means in practice, and why we've narrowed our installs down to one system.
What Anacortes Weather Actually Does to Siding
It helps to separate the three stresses that do most of the damage here, because they attack siding in different ways.
Salt Air
Anacortes' waterfront and near-waterfront properties get a steady drift of salt-laden air off the Strait. Salt is corrosive to fasteners, aggressive toward unprotected wood fiber, and it accelerates the breakdown of lower-grade paint films. Siding that isn't factory-finished for coastal exposure tends to chalk, fade, and lose its seal years ahead of schedule.
Driving Rain
Wind-driven rain off the Strait doesn't fall straight down — it gets pushed sideways into laps, joints, and butt seams. Any siding product with a seam that isn't detailed correctly, or a material that wicks moisture instead of shedding it, becomes a slow leak. On a lot of the older homes we've reworked, the sheathing damage traced straight back to a siding joint that let water in for years before anyone noticed.
Moss Season
Shaded, north- and west-facing walls around Anacortes stay damp for long stretches, especially under mature evergreens — common on Fidalgo Island lots. Moss and algae need sustained moisture to establish, and once they take hold on a porous or absorbent surface, they hold that moisture against the siding, which is exactly the wrong thing for wood-based products.
Why We Stopped Installing Everything Else
We used to install a broader mix of products, like most contractors do when they're building a business. Over time, the callbacks and warranty conversations pointed at the same handful of products, again and again, in this specific climate. We're not saying these are bad products everywhere — we're saying they're not the right fit for what Anacortes throws at a house.
LP SmartSide
LP SmartSide is an engineered wood product, and it depends entirely on an intact factory coating and correctly caulked, painted cut edges to keep moisture out. That's a maintenance-dependent system — every cut edge, nail penetration, and butt joint has to be sealed and stay sealed. In a market with this much driving rain, we found that expecting every homeowner to keep up with that maintenance schedule for the life of the siding wasn't realistic, and the failures we saw traced back almost exclusively to edges that weren't resealed in time.
Vinyl Siding
Vinyl is inexpensive and low-maintenance in the sense that it doesn't need painting, but it's a thin plastic product that expands and contracts with temperature and can crack or become brittle over time, especially with UV and salt exposure. It also doesn't hold up well to impact, and it has no real fire resistance. For a coastal, moisture-heavy market, we didn't feel it gave homeowners the long-term durability or resale value that a heavier, engineered material does.
Cemplank and Allura
These are both legitimate fiber cement competitors to James Hardie, and the underlying material science is similar. Where we draw the line is on the finish system, the product engineering for specific climate zones, and the warranty structure — points we cover below. We standardized on one manufacturer so we can guarantee installation specs, finish performance, and warranty terms without having to caveat every answer with "it depends which product line."
Primed Spruce and Cedar
Real wood siding has a genuine appeal, and we understand why homeowners want it. But raw or primed wood is the most maintenance-intensive option on this list — it needs a maintained paint film to survive, it's a food source for moss and mildew when damp, and in a climate with this much sustained moisture, the maintenance interval to keep it protected is short. We install it when a homeowner insists on it for a historic or architectural reason, but we don't recommend it, and it's not part of our standard offering.
What James Hardie Gets Right for This Climate
James Hardie fiber cement is a cement, sand, and cellulose fiber composite. It's non-combustible, dimensionally stable across temperature swings, and it doesn't rot, and it isn't a food source for moss the way raw wood is. Those properties line up directly with the three stresses we listed above.
ColorPlus Factory Finish
Most Hardie siding we install uses the ColorPlus finish — a factory-applied, baked-on finish that's more consistent and more resistant to fading and chipping than a field-applied paint job. It comes with its own finish warranty, and because it's cured under controlled conditions rather than painted on-site in variable weather, it holds up better against salt air and UV than a site-painted coat.
Climate-Engineered HZ Product Lines
James Hardie engineers its HZ5 product line specifically for regions with damp, marine-influenced climates like ours, calibrating the material for moisture and humidity exposure rather than shipping one generic formulation nationwide. That's a meaningful difference from a product built primarily for dry or hot climates and installed here as a one-size-fits-all fix.
Installed Correctly, It's a System
Hardie siding's performance depends heavily on correct installation — proper clearances, correct fastening, sealed joints, and a functioning water-resistive barrier behind it. We are strict about installing to Hardie's published specifications, because a great product installed wrong will still fail. That's part of why we don't spread ourselves across five product lines — we'd rather be genuinely expert installers of one system than adequate installers of several.
Comparing the Options Side by Side
| Product | Moisture Behavior | Maintenance Burden | Fire Resistance | Typical Warranty |
|---|---|---|---|---|
| James Hardie fiber cement | Sheds water, dimensionally stable, engineered HZ lines for marine climates | Low — factory finish, no repainting cycle needed for most installs | Non-combustible | Long-term, transferable product warranty; separate finish warranty |
| LP SmartSide | Depends on intact coating and sealed cut edges | High — edges and joints must stay caulked and painted | Treated wood strand, not non-combustible | Manufacturer warranty, often contingent on maintenance compliance |
| Vinyl | Sheds water but can warp, crack with age/UV | Low, but limited lifespan in coastal UV/salt exposure | Low — melts/deforms under heat | Varies widely by manufacturer and grade |
| Cemplank / Allura | Similar fiber cement properties to Hardie | Low to moderate, depends on finish system used | Non-combustible | Varies by manufacturer and finish |
| Primed spruce / cedar | Absorbs moisture, prone to moss/mildew if damp | High — regular repainting and sealing required | Combustible | Typically limited or none on the wood itself |
Cost Factors Homeowners Should Understand
Hardie siding usually costs more upfront than vinyl and is comparable to or somewhat more than engineered wood, depending on the product line and finish chosen. Where the math changes is over the life of the siding:
- Repainting cycles: A ColorPlus finish is engineered to go far longer between repaints than a site-applied paint job on wood siding.
- Repair frequency: Non-combustible, moisture-stable material means fewer callbacks for swelling, cracking, or moss-driven rot.
- Resale perception: Fiber cement is broadly recognized by appraisers and buyers as a premium, durable exterior — that can matter when a home in this market goes up for sale.
- Warranty value: A transferable, long-term product warranty has real value to a future buyer, not just the current owner.
What Correct Installation Looks Like
Because we only install one system, we can hold ourselves to one exacting standard on every job. A few things we won't skip, regardless of the timeline or budget pressure on a project:
- Correct fastener type, spacing, and penetration depth per Hardie's published specs
- Proper clearance between siding and grade, roofline, decks, and other trim details
- A continuous, correctly lapped water-resistive barrier behind the siding
- Sealed and properly flashed joints, especially around windows, doors, and penetrations
- Factory-cut and factory-primed edges wherever possible, to preserve the ColorPlus warranty
- Ventilation detailing appropriate for shaded, moss-prone wall sections
When Homeowners Ask Us to Install Something Else
We turn down some jobs because of this policy, and we're upfront about that from the first conversation. If a homeowner wants vinyl or LP SmartSide, we'll say so plainly and point them toward contractors who specialize in those products rather than installing something we don't stand behind long-term. We'd rather lose a bid than install a product on an Anacortes home that we don't believe will hold up to the salt air, driving rain, and moss season this area gets year after year.
Is Hardie Right for Every House?
Almost always, yes, for the climate reasons above — but there are project-specific factors worth a real conversation: historic district requirements, matching an existing profile on an addition, or a homeowner's specific aesthetic goals. That's a conversation we're glad to have on-site, where we can look at your actual walls, exposure, and existing detailing rather than guessing from a photo.
If you're weighing a full re-side or a repair-versus-replace decision on your Anacortes home, we're happy to walk the property with you and give you a straight answer — including whether Hardie is genuinely the right call for your specific situation. Reach out for a free, no-pressure estimate using the form below.