Anacortes Siding Old Town Anacortes Puts Real Stress on Siding
Old Town Anacortes sits close to the water, and that proximity shapes everything about how siding ages here. Homes in this part of the city catch salt-laden air off Rosario Strait and Guemes Channel, take on driving rain that comes in sideways during winter storms, and sit under a moss season that can stretch from October well into spring. Add in the mature tree canopy common to older Anacortes neighborhoods, and you get siding that stays damp longer, dries slower, and faces more corrosive exposure than siding on a newer subdivision further inland.
None of that is a problem you can design around with paint alone. It's a problem you solve with the right material, the right installation details, and a contractor who has actually worked on homes in this specific part of Skagit County — not just read about coastal exposure in a training manual.
What Salt Air, Rain, and Moss Actually Do to Siding
Salt Air
Airborne salt is corrosive to exposed metal fasteners, flashing, and trim, and it accelerates the breakdown of finishes that weren't engineered for marine exposure. Over years, homes close to Anacortes's shoreline see faster fading, chalking, and finish failure than the same siding would show twenty miles inland.
Driving Rain
Wind-driven rain doesn't just wet the surface of a wall — it pushes moisture up and under laps, seams, and trim joints that aren't detailed correctly. On older homes, this is often where the real damage starts: not on the face of the siding, but behind it, at the sheathing and framing, where nobody sees it until there's a soft spot or a stain on an interior wall.
Moss Season
Anacortes's mild, wet winters are ideal moss and algae growth conditions, especially on north-facing walls and anywhere shaded by trees or neighboring structures. Moss holds moisture against the siding surface far longer than open sun-exposed walls, which is exactly the condition that rots wood-based siding and delaminates hardboard products from the inside out.
Put those three factors together — corrosion, wind-driven moisture intrusion, and prolonged surface dampness — and it's clear why siding that performs fine in a dry climate can fail early in Old Town Anacortes.
Why We Install Only James Hardie Fiber Cement Here
We install James Hardie fiber cement exclusively. We don't install vinyl, LP SmartSide, primed spruce, cedar, or other fiber cement brands, and on a site like this one it's worth explaining why, rather than just stating it.
- Non-combustible material: fiber cement doesn't feed a fire the way wood-based products can, which matters for insurance conversations and long-term peace of mind.
- Engineered for moisture, not just painted against it: Hardie's HZ5 product line is formulated for wetter, harsher climates like the Pacific Northwest coast, rather than a one-size-fits-all national spec.
- Factory-applied ColorPlus finish: the color and protective coating are baked on under controlled conditions, which holds up better against salt air fading and chalking than field-applied paint.
- Dimensionally stable: fiber cement doesn't swell, warp, or cup the way wood and some wood-composite sidings do when they take on repeated wet-dry cycles — a real issue given how long moisture sits on shaded walls here.
- Strong transferable warranty: backed by Hardie directly, which matters more in a marine climate where premature finish failure is a real risk with lesser-engineered products.
We're not saying every other product is worthless everywhere. We're saying that after years of doing exterior work in coastal Skagit County conditions, Hardie is the one system we're willing to put our name behind and warranty our labor against.
What a Correct Installation Involves
The siding material is only part of the job. Most siding failures we see on older Anacortes homes trace back to installation shortcuts, not the product itself. On a coastal, high-moisture site like Old Town, these details matter more than they would in a drier inland town.
Drainage Plane and Water-Resistive Barrier
Correct installation starts behind the siding, with a continuous water-resistive barrier and, where conditions call for it, a drainage gap that lets any moisture that does get past the siding find its way back out instead of sitting against the sheathing.
Flashing at Every Penetration
Windows, doors, deck ledgers, hose bibs, vents — every penetration through the wall plane is a potential entry point for wind-driven rain. Correct flashing detail at each one is non-negotiable, especially given how much sideways rain this part of the coast sees in winter storms.
Proper Clearances
Hardie's own installation guidelines specify minimum clearances from grade, roofing, and decks. Skipping these to save a little trim work is one of the most common ways we see moisture and rot problems start on older homes that were re-sided without attention to manufacturer spec.
Fastening and Joint Treatment
Fasteners, joint treatment, and caulking all need to match Hardie's specifications for the climate zone — done wrong, you get premature finish failure or moisture tracking at seams, which shows up years later as staining or soft trim.
Our Process for Old Town Anacortes Homes
| Step | What We Check or Do |
|---|---|
| Initial walk-through | Inspect existing siding, trim, flashing, and any moss or moisture staining, with attention to shaded and north-facing walls |
| Moisture and substrate check | Identify any soft sheathing or framing behind failing siding before it's covered back up |
| Detail plan | Map out flashing, clearances, and drainage plane approach specific to your home's exposure to wind and rain direction |
| Removal and prep | Strip old siding, address any substrate repairs, install water-resistive barrier correctly |
| Hardie installation | Install to manufacturer spec — fastening, clearances, joint treatment, flashing at every penetration |
| Final inspection | Walk the finished job against the original detail plan before we call it complete |
Cost Factors for Siding Installation in This Area
| Factor | Why It Affects Cost |
|---|---|
| Condition of existing sheathing | Older Old Town homes sometimes have hidden moisture damage that needs repair before new siding goes on |
| Home size and wall complexity | More corners, dormers, and trim details mean more flashing and cutting time |
| Siding profile and trim selection | Hardie offers multiple plank, shingle, and panel styles, plus trim options, at different price points |
| Access and site conditions | Narrow lots, mature landscaping, and older utility placement common in Old Town can affect staging and labor |
| Extent of moss or moisture remediation needed | Removing and treating affected sheathing adds time before installation can start |
We won't quote a number without seeing the home, but we're upfront about what's driving the estimate line by line — no vague allowances.
Living With Fiber Cement Siding in a Coastal Climate
One advantage of switching to correctly installed Hardie siding in this environment is how little ongoing maintenance it demands compared to wood or hardboard. It won't rot, and it resists the moisture absorption that lets moss and algae take hold the way they do on organic siding materials. That said, a few habits help any siding perform well long-term in Old Town Anacortes conditions:
- Rinse shaded, north-facing walls periodically to discourage moss and algae buildup
- Keep landscaping trimmed back from siding to improve airflow and drying time
- Inspect caulking at trim joints and penetrations every couple of years and have it renewed if it's cracking
- Clear gutters and downspouts before winter storm season so water isn't overflowing onto walls
- Address any small trim or flashing issues promptly rather than letting water find a way behind the siding
What to Ask Before Hiring a Siding Contractor Here
Old Town Anacortes has enough older housing stock, tree cover, and shoreline exposure that a contractor who only works newer, inland construction may not have hands-on experience with the moisture and salt-air issues specific to this area. Before hiring, it's reasonable to ask:
- Have they installed siding on homes with similar coastal exposure in Skagit County?
- Do they follow manufacturer-specified clearances and flashing details, or treat those as optional?
- Will they check for hidden moisture or sheathing damage before covering it with new siding?
- What warranty applies to both the material and their installation labor?
- Can they explain, in plain terms, why they're recommending one product or detail over another?
A contractor who can answer those clearly, without hedging, is one who's actually done this work in conditions like Old Town Anacortes's — not just siding in general.
Get a Straight Answer About Your Siding
If your Old Town Anacortes home has siding that's showing its age — moss buildup, soft trim, fading, or staining near seams — it's worth having someone look at it before those small signs turn into a bigger repair. We offer free, no-pressure estimates and will tell you honestly what we see, what it would take to do the job right, and why we'd recommend James Hardie fiber cement for a home in this location. Use the form below to get started.