Old Town Anacortes Puts Real Demands on Siding
Old Town Anacortes sits close to the water, which means every wall on these homes deals with salt-laden air, wind-driven rain off the Sound, and a moss and mildew season that runs longer here than it does even a few miles inland. Add in the age of a lot of the housing stock in this part of town — many homes were built well before modern weather-resistive barriers and rainscreen details were standard practice — and you get a neighborhood where siding failure shows up earlier and more visibly than in newer subdivisions. We've replaced enough siding on these blocks to know the pattern: it's rarely the middle of a wall that fails first. It's the bottom courses near grade, the corners that catch prevailing wind, and the north- and west-facing elevations that stay damp longest after a storm.
None of that means Old Town homes are doomed to short-lived siding. It means the replacement has to be planned around the actual exposure these houses get, not treated as a generic re-side.

What Salt Air, Driving Rain, and Moss Actually Do to Siding
Salt Air
Airborne salt is corrosive to fasteners and metal flashing long before it does visible damage to the siding material itself. On older homes we frequently find rusted or failing nails and corroded flashing well ahead of any obvious problem with the siding face — which is exactly why the fastening and flashing details matter as much as the product choice.
Driving Rain
Wind off the water doesn't just wet a wall — it drives water sideways and upward, which stresses lap joints, butt seams, and anything installed without proper overlap or gapping. A siding system that isn't detailed for wind-driven rain will eventually let moisture behind the cladding, even if the surface material itself is holding up fine.
Moss and Sustained Dampness
Skagit County's wet season runs long, and shaded, north-facing walls in Old Town can stay damp for days after a storm clears elsewhere in town. Moss and algae growth on siding isn't just cosmetic — sustained moisture at the surface accelerates the breakdown of anything that isn't inherently water-resistant, and it's a strong early sign that a wall isn't drying properly between rain events.
What's Usually Underneath the Old Siding
On older Old Town homes, tearing off the existing siding is often the first time anyone gets an honest look at the wall assembly in decades. It's common to find outdated or missing weather-resistive barrier, undersized or rusted flashing at windows and penetrations, and sheathing that has taken on moisture damage in the areas most exposed to wind-driven rain — usually lower courses and corners. This isn't a reason to panic; it's the reason a proper tear-off and inspection matters more here than it would on a newer build. A re-side that skips this step and just layers new siding over old problems is setting the next owner up for the same failure, faster.
Why We Only Install James Hardie Fiber Cement
We don't install vinyl, LP SmartSide, Cemplank, Allura, primed spruce, or cedar. That's a deliberate standard, not a lack of options. Vinyl expands and contracts with temperature swings and can warp or crack in cold snaps; it also isn't rated to stop fire the way fiber cement is. Engineered wood products like LP SmartSide perform reasonably when installation is flawless, but they're more sensitive to the exact conditions that define Old Town Anacortes — sustained moisture exposure and imperfect field installation add up to real risk over time. Cedar and primed spruce are beautiful but demand a maintenance schedule most homeowners can't keep up with in a climate this wet, and both are more vulnerable to the rot and pest pressure that comes with year-round dampness.
James Hardie fiber cement is non-combustible, dimensionally stable, and manufactured with a factory-applied ColorPlus finish that's engineered to hold color and resist the fading and cracking that plagues field-painted products in salt air. Hardie also builds climate-specific HZ formulations, which matters directly in a marine environment like Fidalgo Bay. It's the product we're willing to put our name behind on these blocks, and it's backed by a strong transferable warranty when installed to manufacturer spec — which is the part most homeowners never get told is a condition of that warranty, not a given.
What a Correct Siding Replacement Involves
The siding product is maybe a third of what determines how a wall performs in this climate. The rest is in the details most homeowners never see:
- Full tear-off to sound sheathing, with any moisture-damaged sections identified and repaired before anything new goes up
- A continuous, properly lapped weather-resistive barrier installed shingle-fashion so water sheds outward, not behind the siding
- Correct flashing at every window, door, and penetration — the single most common failure point we find on older Old Town homes
- A rainscreen gap or drainage plane where conditions call for it, so walls can actually dry after wind-driven rain
- Fasteners and flashing rated for coastal, salt-air exposure — not standard-grade hardware that corrodes early
- Hardie siding installed to the manufacturer's fastening pattern, clearances, and caulking specification, which is what keeps the transferable warranty intact
Skip any one of these and the new siding can still fail early, even though the material itself is rated for exactly this kind of exposure.
Matching the Character of Older Anacortes Homes
A lot of Old Town's charm is in its older architectural detailing — narrow lap reveals, trim proportions, and a general scale that newer construction doesn't replicate. James Hardie's lineup gives us room to match that character instead of flattening it: lap siding in a range of reveal widths, shingle-style panels where a home originally had a shingled look, and trim boards sized to keep window and corner details proportional to the house. The ColorPlus finish comes in a range of factory colors, and Hardie products can also be field-painted later if a homeowner wants a custom match — though the factory finish is the more durable option in salt air over the long run.
Our Process for Old Town Anacortes Jobs
- Walk-through and assessment — we look at exposure by elevation, existing moisture or moss patterns, and the condition of trim, flashing, and sheathing where visible.
- Written scope and estimate — what's being torn off, what's being replaced underneath if needed, product and color selection, and a realistic timeline.
- Tear-off and inspection — this is when hidden sheathing or flashing issues get found and addressed, before anything new goes up.
- Weather barrier and flashing detail — installed to shed water outward at every seam, window, and penetration.
- Hardie installation to spec — fastening pattern, clearances, and joint treatment done to manufacturer requirements so the warranty is valid.
- Final walk-through — we go over the finished work with the homeowner before calling the job done.
What Drives Cost on an Old Town Job
| Factor | Why It Matters Here |
|---|---|
| Condition of sheathing under old siding | Older Old Town homes more often need sheathing repair or replacement, especially at grade and corners |
| Amount of trim and detail work | Older architectural detailing takes more time to match than a plain modern elevation |
| Number of stories and access | Many Old Town lots and homes have tighter access than newer construction, affecting scaffolding and staging |
| Flashing and window count | Every window and penetration is a flashing detail that has to be done correctly for the warranty to hold |
| Siding profile and finish chosen | Reveal width, shingle-style panels, and custom colors carry different material costs |
Why a Crew That Already Works Old Town Anacortes Matters
A contractor who's never worked this specific stretch of Skagit County waterfront can still do competent general siding work — but they're guessing at exposure patterns a crew that's already been on these blocks simply knows. Which elevations stay damp longest, where moss shows up first, how far wind-driven rain travels up a wall on a corner lot near the water — that's the kind of judgment that comes from repetition, not a product catalog. It shows up in small decisions: where we add extra flashing attention even when it's not strictly required, which walls we flag for a rainscreen detail, and how we sequence a job around this area's rain patterns so the wall isn't sitting open longer than it needs to be.
Signs It's Time to Replace, Not Patch
- Soft or spongy spots when you press on the siding near grade or at corners
- Persistent moss or algae staining that comes back within weeks of cleaning
- Visible warping, cracking, or separation at lap joints and seams
- Paint that won't hold, even after prep and a fresh coat
- Rust staining below nail heads or flashing
- Musty smell or visible staining on interior walls that back onto exterior siding
If you're seeing more than one of these, patching individual boards usually isn't a lasting fix — the underlying moisture problem is bigger than the visible symptom.
If you're weighing a siding replacement for a home in Old Town Anacortes, we're glad to take a look and walk you through what we'd actually recommend for your specific exposure — no pressure, no sales script. Use the form below to request a free estimate.
Anacortes Siding