Bellingham Siding One Product, One Standard
We get asked about this a lot: why does a siding contractor in Bellingham only install one brand? It's a fair question, and the answer isn't marketing talk — it's twenty-plus years of watching what actually holds up on homes from Fairhaven to Birch Bay, and what doesn't. We install James Hardie fiber cement siding exclusively. We don't install vinyl, LP SmartSide, Cemplank, Allura, primed spruce, or raw cedar. This page explains the reasoning.
What Bellingham's Climate Does to Siding
Whatcom County isn't a harsh climate in the sense of extreme heat or hard freezes, but it's a relentless one. We get long stretches of driving rain off the Sound, salt-laden air near Chuckanut and the bay, and a moss and algae season that can run eight or nine months out of the year in shaded, north-facing lots. Add in the humidity that never fully lets up between October and May, and you've got conditions that punish any siding product with a weak moisture strategy or an unstable substrate. Wood swells and checks. Vinyl can't stop water from getting behind it. Engineered wood products rely entirely on an intact factory seal to keep moisture out of the wood fiber core.
Why We Standardized on James Hardie
James Hardie siding is fiber cement — a mix of cellulose fiber, sand, and Portland cement, cured into a dense, stable plank or panel. It doesn't rot, it doesn't feed insects, and it's non-combustible, which matters more every year as wildfire smoke and ember exposure become a bigger part of Pacific Northwest summers. But the bigger reason we standardized on it is consistency. When we show up to a job, we know exactly how the product will behave, how it takes fasteners, how it handles our rain, and how it'll look in fifteen years — because we've installed it long enough to know.
HZ5 Engineering for Our Region
James Hardie makes climate-specific product lines, and that matters here. Their HZ5 formulation is engineered for regions with more moisture cycling and freeze-thaw exposure, which fits Whatcom County's weather pattern better than a generic all-climate product. It's a small detail most homeowners never hear about, but it's part of why we don't treat siding as a one-size-fits-all install.
ColorPlus Factory Finish
Most of what we install uses Hardie's ColorPlus finish — a color baked on at the factory under controlled conditions, not brushed on at the job site. In a market where field-applied paint has to fight moss, mildew, and near-constant moisture just to cure properly, a factory finish is a real advantage. It resists fading and chalking better than site-applied paint, and it comes backed by its own finish warranty separate from the substrate warranty.
A Warranty That Actually Transfers
James Hardie backs its siding with a strong, transferable limited warranty — a real consideration for resale in a market like Bellingham's, where buyers and their inspectors are increasingly asking what's under the paint. A transferable warranty on the substrate and finish gives a homeowner something concrete to point to, not just a verbal assurance from whoever installed it.
What Correct Installation Involves
Fiber cement is only as good as its installation. Hardie is unforgiving of shortcuts, and that's intentional on our part — we'd rather install a product where doing it right actually matters than one that's forgiving of a rushed crew. Correct installation means:
- Proper rainscreen or drainage plane behind the siding, critical given how much wind-driven rain this region sees
- Correct fastener spacing and placement per Hardie's published specs, not shortcuts to save labor
- Factory-cut and factory-primed edges wherever possible, with field cuts sealed per manufacturer instructions
- Flashing and kick-out details at every roof line, window, and penetration — the actual place most siding failures start, regardless of brand
- Correct clearance from grade, decks, and roof lines to keep the bottom edge out of standing moisture
What We're Saying No To, and Why
We're not going to tell you vinyl, LP SmartSide, or cedar are bad products — each has a place, and each has tradeoffs we've detailed on other pages. What we will say is that we made a business decision to stop installing products that ask a homeowner to accept more maintenance, more moisture risk, or more uncertainty about long-term performance than we're comfortable standing behind in this climate. Standardizing on one product also means our crews aren't relearning installation quirks project to project — they know Hardie cold, which reduces the installation-sensitivity that causes most siding problems in the field.
Is Hardie Right for Every Home?
Almost always, yes — Hardie's lineup includes lap siding, panel siding, and shingle profiles that can match craftsman, farmhouse, and traditional Bellingham home styles without looking like a retrofit. It costs more upfront than vinyl and comparable to higher-grade wood or engineered products, but the combination of non-combustibility, factory finish, and long-term stability in wet marine climates is why it's the only thing we put our name on.
If you're planning a siding project anywhere in Whatcom County and want a straight answer about whether Hardie makes sense for your home, we're happy to take a look. Reach out for a free, no-pressure estimate — we'll walk the exterior with you and explain exactly what we'd recommend and why.