Old Town Anacortes: A Tough Climate for Siding
Old Town Anacortes sits close enough to the water that its homes take a different kind of weather beating than houses further inland in Skagit County. Salt-laden air off Fidalgo Island's shoreline works on fasteners, trim, and paint film year-round. Driving rain, pushed sideways by wind off the water, finds every gap in a siding system that a calm-weather install would never expose. And the long stretch of overcast, damp months here means moss and algae get a real head start on any surface that stays wet and shaded, which is most north- and west-facing walls in this neighborhood.
None of that is unusual for western Washington. What's different in Old Town is the combination and the duration — homes here are exposed to salt air and wind-driven rain more consistently than siding on the same street types just a few miles inland. A siding replacement done without accounting for that combination tends to show problems years sooner than it should.

Signs Your Old Town Anacortes Home's Siding Has Reached the End
Siding failure in this climate is rarely sudden. It shows up gradually, and homeowners often live with early warning signs for a year or two before calling anyone. Worth checking for:
- Soft or spongy spots when you press on a panel, especially near the bottom courses or under windows
- Persistent green or black staining that comes back within months of being cleaned
- Paint that bubbles, peels, or fails again within a year or two of repainting
- Visible cracking, buckling, or panels that have pulled away from the wall at seams or corners
- Gaps opening up around trim, window casings, or where siding meets the foundation
- Rot or discoloration at the base of exterior walls, particularly on sides that face prevailing wind and rain
- A noticeable jump in heating costs, which can point to moisture-compromised insulation behind failing siding
Any one of these on its own might be a spot repair. Several together, especially on an older home, usually means the siding system as a whole — not just the visible panels — has been letting moisture in for a while.
What a Correct Siding Replacement Actually Involves
Tear-Off and Inspection
Replacing siding correctly starts with removing the old material entirely, not covering over it. That's the only way to actually see the sheathing underneath. Older Old Town homes can have a range of original wall construction, and it's common to find soft sheathing, old fastener corrosion, or moisture trapped behind siding that looked fine from the street. Skipping this step and re-siding over a compromised wall just locks the problem in.
Weather-Resistive Barrier and Flashing
Once the wall is open, the weather-resistive barrier (the layer between sheathing and siding) needs to be intact, correctly lapped, and free of tears. This is also where flashing gets addressed — around windows, doors, and any place two roof or wall planes meet. In a climate with this much wind-driven rain, flashing details are what actually keep water out; the siding itself is the second line of defense, not the first. Kickout flashing where a roofline meets a sidewall is a small detail that gets skipped constantly and causes a disproportionate amount of hidden rot when it is.
Fastening and Installation to Manufacturer Spec
Fiber cement siding has specific installation requirements — fastener type and spacing, gapping at butt joints, clearance from grade, caulking at penetrations — and those specs exist because manufacturers have tested what actually holds up. Installing to spec is what keeps the manufacturer's warranty valid, and it's also just what keeps the wall dry. Corner-cutting on fastening and gapping is the most common cause of premature siding failure we see, more than the material choice itself.
Why We Install Only James Hardie Fiber Cement
We standardized on James Hardie fiber cement siding and don't install vinyl, LP SmartSide, or other alternatives. That's a deliberate call, not a brand preference. Fiber cement is non-combustible, holds paint and factory finish far longer than vinyl in direct salt air, and doesn't have the seasonal expansion and contraction that causes vinyl panels to buckle or pull loose in temperature swings. Hardie's ColorPlus factory finish is baked on under controlled conditions, which gives it more consistent, longer-lasting color performance than field-applied paint on wood or engineered wood products.
Hardie also builds climate-specific product lines — including formulations engineered for wetter, freeze-prone regions — which matters directly for a location like Old Town Anacortes where the siding is dealing with sustained moisture exposure most of the year. Combined with a strong transferable warranty, it's the material we're willing to put our name behind here.
How Hardie Compares to Other Siding Options in This Climate
| Material | Moisture / Salt Air Behavior | Moss & Algae Growth | Maintenance Burden |
|---|---|---|---|
| James Hardie fiber cement | Engineered to resist moisture damage; won't rot | Can grow surface algae like any exterior surface, but doesn't feed decay | Occasional wash; factory finish holds up for years |
| Vinyl siding | Doesn't rot, but can warp, crack, or fade in sustained coastal sun and salt exposure | Similar surface growth potential; grooved profile can hold moisture and grime | Low, but replacement of cracked/warped sections is common over time |
| Cedar or primed wood | Absorbs moisture; prone to rot and swelling in sustained damp climates without diligent upkeep | Highly prone to moss and algae in shaded, damp areas | High — regular sealing, painting, and moisture monitoring |
| LP SmartSide (engineered wood) | Treated to resist moisture, but remains a wood-based product sensitive to installation quality and sustained wetting | Can develop surface growth similar to other wood-based products | Moderate — relies heavily on correct installation and ongoing caulk/paint upkeep |
Every material on that list has legitimate installations that hold up fine. Our decision to install only Hardie comes down to wanting one system we can install to spec every time, back with a strong warranty, and stand behind for a climate that doesn't give siding much of a break.
Our Process for Old Town Anacortes Siding Replacement
- On-site assessment — we walk the home, check current siding condition, and look at trouble spots like wall-roof intersections, window flashing, and grade clearance
- Tear-off and sheathing inspection — old siding comes off, sheathing is checked and any damaged sections are addressed before anything new goes up
- Weather-resistive barrier and flashing repair — barrier is replaced or repaired, and flashing details are corrected at every penetration and transition
- Hardie installation to manufacturer spec — correct fastening, gapping, and clearances, using the HZ product line suited to this climate
- Trim, caulking, and finish detail — joints sealed, trim fitted, and touch-up work completed to a clean finish
- Site cleanup and walkthrough — old material hauled off, site cleared, and a final walkthrough before we consider the job done
What Affects the Cost of a Siding Replacement Here
| Factor | Why It Matters |
|---|---|
| Home size and wall complexity | More square footage and more corners, gables, and dormers mean more material and labor time |
| Number of stories and access | Older two-story homes on tighter Old Town lots can require more scaffolding or staging |
| Condition of the sheathing underneath | Rot or moisture damage found during tear-off adds repair scope that's hard to know before opening the wall |
| Trim and architectural detail | Original trim profiles and detail work on older homes take more time to match and finish correctly |
| Tear-off and disposal volume | Full removal of old siding, especially multiple layers, adds labor and haul-away cost |
We don't publish flat pricing because these factors genuinely change the scope from house to house — an accurate number comes from actually looking at the walls, not a square-footage formula.
Why a Crew That Already Works Old Town Anacortes Matters
Old Town's housing stock skews older than newer developments elsewhere in Skagit County, and that means more variation in original wall construction, sheathing type, and how previous owners may have already re-sided or patched the exterior. A crew that regularly works this specific neighborhood has already seen the common surprises behind these walls and knows what to look for during tear-off instead of discovering it for the first time on your job.
There's also a practical side: familiarity with the City of Anacortes permitting process, realistic expectations about weather windows for exterior work in a marine climate, and an understanding of site access on some of the tighter, older lots in this part of town. None of that shows up on an estimate line item, but it affects how smoothly the actual work goes.
Caring for New Siding in a Salt Air, High-Moss Climate
Hardie siding installed correctly needs relatively little upkeep, but a few habits extend its life further in this specific environment:
- Rinse the exterior periodically, particularly north- and west-facing walls, to slow surface algae buildup before it sets in
- Keep gutters clear so overflow isn't running down the siding face during heavy rain
- Trim back vegetation that keeps walls shaded and damp longer than they need to be
- Have caulking at trim and penetrations checked every few years and touched up as needed
If you're seeing early signs of siding trouble on an Old Town Anacortes home, or you're just planning ahead for a home nearing the end of its current siding's life, we're glad to take a look. The estimate is free, there's no pressure, and you'll get a straight answer about what your walls actually need.
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