Old Town Anacortes sits close enough to the water that its houses live a different life than siding fifty miles inland. Between the salt-laden air off Fidalgo Bay, the sideways rain that blows in off the Sound, and a moss season that seems to stretch longer every year, the exterior skin of a home here is under near-constant low-grade attack. Siding replacement in this neighborhood isn't just a cosmetic project — it's a chance to put a product and an installation method on the house that actually matches what the site throws at it.
What Old Town Homes Are Up Against
A lot of the housing stock in and around Old Town Anacortes is older, with additions, re-sides, and repairs layered on over the decades. That history matters when planning a replacement, because it usually means multiple generations of house wrap, flashing, and trim details hiding under the current siding — some done to code, some done as a quick patch at some point along the way.
The climate does its own kind of damage on top of that history:
- Salt air: Airborne salt accelerates corrosion on fasteners, hardware, and any metal flashing that isn't properly protected, and it can degrade paint films faster than the same product would wear inland.
- Driving rain: Wind-driven rain off the water doesn't just fall on siding — it gets pushed sideways into laps, joints, and penetrations, which is exactly where a lot of siding failures start.
- Moss and prolonged damp: Skagit County's wet season runs long, and shaded north- and west-facing walls in Old Town can stay damp for weeks at a stretch, which is ideal territory for moss, algae, and the moisture retention that leads to rot in vulnerable materials.

Why Product Choice Matters More Here Than Elsewhere
Every siding material handles this combination of salt, rain, and moss differently, and the differences show up faster on a marine-influenced lot than they would on a dry inland property.
Wood and Wood-Based Products
Traditional wood siding and engineered wood products depend on an intact factory or field-applied coating to keep moisture out. Once that coating is compromised — by a nail pop, a scuff, or just years of UV and moisture cycling — the substrate underneath is organic material that can absorb water and support rot. In a neighborhood with this much sustained dampness, that's a maintenance commitment homeowners need to go in with eyes open about.
Vinyl Siding
Vinyl handles rain fine as a shedding surface, but it's a thin plastic product that expands and contracts with temperature swings, can become brittle over time, and isn't repairable in the way a fiber cement plank is — a damaged panel usually means a full replacement of that section. It also does nothing to address the moss and mildew staining that shows up on shaded walls; the color is molded in, but the surface still collects the same organic growth as anything else.
Fiber Cement
Fiber cement siding is dimensionally stable, doesn't feed rot the way wood does, and holds a factory-applied finish far more durably than field-painted wood. That combination is why it's become the standard choice for homes sitting this close to the water.
Our Position: James Hardie Only
We install James Hardie fiber cement exclusively. We don't install vinyl, LP SmartSide, Cemplank, Allura, primed spruce, or cedar — not because those products don't have a place in the industry, but because after years of doing exterior work in this specific climate, Hardie's combination of non-combustible fiber cement, factory-cured ColorPlus finishes, and climate-engineered HZ product lines gives Old Town homes the best odds of a siding job that still looks and performs well after a decade of salt air and wet winters.
Hardie's HZ5 product line in particular is engineered for cold, wet, freeze-thaw climates — which describes Skagit County's marine-influenced weather closely enough that it's the correct choice for essentially every home we work on in this area. The ColorPlus finish is baked on at the factory under controlled conditions, which gives it better adhesion and color retention than field-applied paint, and it comes with its own finish warranty separate from the substrate warranty on the board itself.
What a Correct Replacement Involves
Ripping off old siding and nailing up new boards is the easy part. The work that actually determines whether the new siding lasts is underneath it.
Sheathing and Structural Inspection
Once the old siding is off, we inspect the sheathing for soft spots, rot, or prior water damage — common in Old Town's older homes where a leak may have gone unnoticed for years under a previous layer of siding. Any compromised sheathing gets replaced before anything new goes back on; covering damaged wood with new siding just hides the problem for the next owner to find.
Weather-Resistive Barrier
A new, continuous house wrap goes on over the sheathing, lapped correctly so water is directed outward and down rather than trapped behind the siding. This layer is what actually stops driving rain that gets past the siding face from reaching the framing.
Flashing at Every Penetration
Windows, doors, hose bibs, vents, and any other penetration through the wall plane get properly flashed and integrated with the house wrap. This is one of the most common places we find shortcuts in older installs, and it's usually where water intrusion starts.
Correct Fastening and Clearances
Hardie specifies fastener types, spacing, and minimum clearances from grade, roof lines, and other surfaces for a reason — get those wrong and you create the exact conditions (trapped moisture, wicking) that cause premature failure, no matter how good the siding itself is. We install to those specifications, not to whatever's fastest.
Caulking and Sealant Details
Joints and butt seams get sealed with sealants rated for the exposure, not just whatever tube is on the truck. In a location that gets this much wind-driven rain, a poorly sealed joint is a guaranteed future leak point.
Cost Factors for Old Town Anacortes Siding Replacement
Every house is different, but the main variables that move the price on a project like this are fairly consistent across the neighborhood.
| Factor | Why It Matters |
|---|---|
| Sheathing condition underneath old siding | Hidden rot or water damage found during tear-off adds repair scope that can't be quoted until the walls are opened up |
| Home age and number of prior re-sides | Older homes may have multiple layers or non-standard framing details that take extra time to work around correctly |
| Wall complexity and trim detail | Dormers, bump-outs, and decorative trim common on older Anacortes homes add labor beyond a simple flat wall |
| Siding profile chosen | Lap width, shingle-style panels, and trim board selections all carry different material and labor costs |
| Access and site conditions | Narrow lots, mature landscaping, and tight setbacks common in an established neighborhood can slow staging and tear-off |
Our Process
- On-site assessment: We walk the exterior, check current siding condition, and look for visible signs of moisture problems before quoting anything.
- Detailed proposal: You get a clear scope covering tear-off, any sheathing repair allowance, weather barrier, flashing, and the specific Hardie products and colors proposed.
- Tear-off and inspection: Old siding comes off and we inspect sheathing before anything new is installed.
- Weather barrier and flashing: New house wrap and flashing go in at every penetration and transition.
- Hardie installation: Boards, panels, or shingles installed to manufacturer fastening and clearance specifications.
- Final detailing: Caulking, trim, and paint touch-up on any field-cut edges, followed by a walkthrough with you.
Why a Crew That Already Works This Area Matters
A contractor who works Old Town Anacortes regularly already knows what the salt exposure, the rain angles off the water, and the shaded north walls tend to do to a house over time. That's not something you can fully substitute with a checklist — it comes from having pulled siding off enough homes in this specific location to know which details get skipped and which ones matter most here. It also means service after the install isn't a long drive for us; if a question comes up down the road, we're not starting from scratch on your house or your neighborhood.
Signs It's Time to Replace, Not Repair
- Soft or spongy spots when you press on the siding, especially near the bottom courses or under windows
- Persistent moss or algae staining that returns quickly after cleaning
- Visible warping, buckling, or gaps opening up at seams and corners
- Paint that's failing across large areas rather than in isolated spots
- Multiple past patch repairs that are starting to show their age themselves
- Rising energy bills that suggest the wall assembly is no longer performing as it should
If your Old Town Anacortes home is showing any of these signs, or you're simply planning ahead for a siding replacement, we're glad to walk the exterior with you and give you a straightforward, no-pressure estimate — no obligation, just an honest look at what your house needs.
Anacortes Siding