Siding Built for Ferndale's Weather
Ferndale sits close enough to the water and the marine air that comes with it that siding choices matter more here than in drier inland climates. Between salt-laden air rolling in off the coast, long stretches of driving rain through the fall and winter, and a moss season that can run most of the year in shaded, north-facing spots, exterior materials on Ferndale homes take a steady beating. We're a Bellingham-based crew that works throughout Whatcom County, and Ferndale is a regular part of our service area — we know what this climate does to a house over time.
What Whatcom County Weather Does to Siding
Salt air is corrosive to fasteners and hard on any siding material that isn't engineered to handle sustained moisture exposure. Combine that with the region's rainfall totals and the humidity that lingers under tree cover or in low-lying yards, and you get conditions that favor moss, algae, and mildew growth on anything porous. Wood-based products — cedar, primed spruce, and engineered wood siding like LP SmartSide — are especially vulnerable to swelling, delamination, and rot at seams and cut edges when they stay damp for extended periods. Vinyl siding holds up better against moisture itself, but it can warp in temperature swings and doesn't offer much protection against impact or the freeze-thaw cycles that show up in colder snaps.
This is exactly why we standardized on James Hardie fiber cement siding for every home we side, including Ferndale. It's a non-combustible product engineered specifically for demanding climates, and Hardie's HZ5 product line is built with Pacific Northwest conditions in mind — resisting moisture intrusion, holding paint and color far longer than wood, and standing up to the freeze-thaw and rain cycles that define our winters here.
Why We Only Install James Hardie
We get asked fairly often why we don't offer vinyl, LP SmartSide, Cemplank, Allura, or traditional wood siding. The honest answer is that we've seen how each of those products performs over a decade or two in this specific climate, and we'd rather stand behind one system we trust completely than offer options we'd have reservations about.
- Vinyl is affordable and low-maintenance in mild climates, but it can crack in cold snaps, fade over time, and doesn't offer the same fire resistance or impact durability as fiber cement.
- LP SmartSide and other engineered wood products perform reasonably well when installation and caulking are perfect and stay perfect for the life of the product — but any gap at a seam or fastener becomes a moisture entry point, and repairs get expensive fast in a wet climate.
- Cedar and primed spruce look great initially but require ongoing maintenance — recaulking, repainting, and monitoring for rot — that most homeowners don't want to keep up with for 20-plus years.
James Hardie's ColorPlus factory finish holds up to UV and moisture better than field-applied paint, the fiber cement core doesn't feed mold or attract insects, and the manufacturer backs it with a strong transferable warranty. When it's installed to spec — proper flashing, correct fastening, and the right clearances — it's a system that's genuinely built for a climate like ours.
Our Services in Ferndale
We handle full siding installation and replacement using James Hardie products exclusively, along with the flashing, moisture barrier, and trim detail work that determines whether siding actually performs the way it's supposed to. Beyond siding, we also handle roofing, window replacement, and deck construction — all of which face the same moss, moisture, and salt-air exposure that siding does in this part of Whatcom County. Handling all four means we're looking at the whole exterior envelope together, not just one piece of it, which matters when moisture problems in one area (a leaking gutter, a failing roof valley) end up affecting the siding below it.
Why a Local Crew Matters
Every coastal town in this region has its own quirks — how the wind hits a given street, which yards stay shaded and damp longer, where moss tends to build up fastest. A crew that works Bellingham and the surrounding Whatcom County communities regularly, rather than one that's unfamiliar with the area, is going to catch those details during an estimate and account for them in the install. We're not traveling in from out of the region — this is the climate we work in every week, and Ferndale homes get the benefit of that familiarity.
Getting Started
If your siding is showing moss buildup, soft spots, fading, or you're just planning ahead for a home in a demanding climate, we're happy to take a look. We offer free, no-pressure estimates — walk the exterior with you, point out what we see, and explain what a James Hardie installation would involve for your specific home. Reach out using the form below to schedule a visit.

Bellingham