Ferndale Siding Siding Built for Custer's Coastal Whatcom County Climate
Custer sits in the northern reaches of Whatcom County, close enough to Birch Bay and the Strait of Georgia that salt-laden air is a fact of life for homes out here, not an occasional nuisance. Add in the driving rain that blows through on winter storm systems and the deep shade many properties get from mature evergreens, and you've got a recipe for siding that has to work hard year-round. We've replaced and repaired siding across this stretch of the county long enough to know exactly what holds up here and what doesn't.
What Custer Homes Are Up Against
A few things show up again and again when we inspect homes in and around Custer:
- Salt air corrosion and staining. Proximity to the water means airborne salt settles on exterior surfaces, accelerating the breakdown of fasteners, paint, and lower-grade siding materials over time.
- Wind-driven rain. Storms coming off the water don't just fall straight down — they push moisture sideways into seams, laps, and trim joints. Siding that isn't installed with the right flashing and gapping details will eventually let water in.
- Persistent moss and algae growth. Shaded north-facing walls, tree cover, and the region's long damp season create ideal conditions for moss and mildew to take hold on siding, especially wood-based products that hold moisture.
- Freeze-thaw swings. Whatcom County doesn't get brutal winters, but the repeated cycle of damp, cold, and occasional freezes stresses any siding that's already absorbing water.
None of this is unique to any one house — it's the baseline for the area. The difference between a siding job that lasts and one that fails early usually comes down to material choice and installation quality, not luck.
Why We Only Install James Hardie Fiber Cement
We made the decision years ago to stop installing vinyl, LP SmartSide, and other engineered wood products, and we don't install cedar or primed spruce siding either. Each of those has legitimate uses in the right setting, but in a coastal, high-moisture climate like Custer's, they carry trade-offs we're not willing to put our name behind:
- Wood-based and engineered wood siding relies on a protective coating that has to be maintained. Once it's compromised — from a scratch, a poorly sealed cut edge, or just age — moisture gets into the substrate and swelling or rot can follow, especially in shaded, damp-prone spots.
- Vinyl is low-maintenance but it's also a thin, flexible plastic. It can warp in sustained heat, crack in cold impacts, and it simply doesn't have the mass or rigidity to compete visually or structurally with fiber cement.
- Salt air and constant moisture are exactly the conditions that expose the weak points in these materials fastest.
James Hardie fiber cement siding is non-combustible, dimensionally stable, and engineered specifically for demanding climates through its HZ product lines. The factory-applied ColorPlus finish resists fading and holds up against the kind of moss, mildew, and salt exposure we see out here far better than a field-applied paint job ever could. It's backed by a strong transferable warranty, and when it's installed correctly — proper clearances, correct fastening, flashing detail at every joint — it's built to perform for decades in exactly the conditions Custer throws at it.
How Our Process Works for This Area
Every property is different, even within a small area like Custer. Before we quote anything, we walk the exterior and look specifically at:
- Sun and shade exposure on each wall, since north-facing and tree-shaded sides need extra attention to moss and moisture management
- Existing water damage, soft trim, or failed caulking around windows and doors
- Current siding material and whether the underlying sheathing and house wrap need attention before new siding goes on
- Drainage around the foundation and roofline, since siding failures often start with water being directed the wrong way off the roof
From there we install James Hardie plank, shingle, or panel siding to spec — proper gaps, factory-sealed cut edges where needed, and flashing detail at every penetration and joint. We also handle roofing, windows, and decks, so if your siding project surfaces a related issue — a roof edge that's letting water behind the wall, a window that's no longer sealing, a deck ledger that needs attention — we can address it as part of the same conversation instead of sending you to find another contractor.
Why a Local Crew Matters Here
Custer isn't a big market, and it doesn't get the attention that Bellingham or the bigger cities down the interstate do. That's part of why we make a point of knowing this specific stretch of Whatcom County — the salt exposure near the water, the tree cover further inland, the way storms move through in winter. A crew that works this area regularly catches the details that get missed by an out-of-town outfit doing a one-off job. We're not guessing at what your house needs; we've seen the same conditions on the house down the road.
Get a Free, No-Pressure Estimate
If your siding is showing moss buildup, staining, soft spots, or you're just planning ahead for a replacement, we're happy to come take a look. There's no cost and no pressure — just an honest assessment of what your home needs and what James Hardie siding would look like on it. Reach out below to schedule a free estimate.