Bellingham Siding One Product, No Exceptions
We get asked fairly often why we don't offer vinyl, LP SmartSide, Cemplank, Allura, or cedar as options alongside James Hardie. The honest answer is that we stopped installing anything else years ago and haven't looked back. This isn't a sales pitch dressed up as education — it's an explanation of what we've learned putting siding on homes throughout Whatcom County, from the Fairhaven waterfront to the flats out toward Ferndale, and why one product consistently holds up to what this climate does to a house.
What Bellingham's Climate Actually Does to Siding
Bellingham doesn't get hurricanes or wildfires most years, but it grinds on siding in quieter ways. Salt air off Bellingham Bay and the Strait accelerates corrosion on fasteners and finishes. Driving rain off the water finds every gap in flashing and caulk. And our moss season isn't really a season here — it's most of the year. Damp, shaded north walls under fir and cedar trees stay wet longer than they dry, which is exactly the condition that punishes wood-based products and anything with a paper or particle-based core.
Fiber cement doesn't rot, doesn't swell, and doesn't feed moss and mildew the way organic materials do. That's the starting point for why we standardized on it.
Why James Hardie Specifically
Fiber cement is a category, not a brand, but we don't treat all fiber cement as equal. James Hardie is the manufacturer we trust for a few concrete reasons:
- Non-combustible core. Hardie board is manufactured from cement, sand, and cellulose fiber — it doesn't burn, which matters for insurance conversations and for peace of mind, even in a wet coastal county.
- ColorPlus factory finish. Rather than field-painting siding after installation, Hardie's ColorPlus technology bakes a multi-coat finish onto the board at the factory under controlled conditions. That finish resists fading and chipping far longer than a job-site paint job exposed to our rain within days of application.
- HZ5 and HZ10 climate-engineered formulations. Hardie makes different product formulations for different climate zones, tuned for moisture exposure and freeze-thaw behavior. We install the version engineered for our region, not a generic national product.
- A warranty that's actually structured to transfer. Hardie backs its boards with a long non-prorated limited warranty, and the ColorPlus finish carries its own separate coverage. If you sell the house, that protection is designed to follow it, which matters to buyers and their inspectors.
The Product Lines We Install
HardiePlank Lap Siding
The most common choice for Bellingham homes — available in several textures (smooth, cedarmill, beaded) and widths, giving you the classic lap-siding look without the wood.
HardiePanel Vertical Siding
Used for board-and-batten style accents or full vertical applications, common on more modern builds we see going up around Whatcom County.
HardieTrim
Matches the siding system for window and door trim, corners, and fascia so the whole exterior reads as one coordinated system rather than mismatched materials.
HardieShingle
A shingle-style option for homes that want a Craftsman or cottage look without the maintenance burden of real cedar shingles in a climate that keeps them wet half the year.
What Correct Installation Actually Requires
Hardie's warranty and performance depend on installation matching the manufacturer's published specs — this is not a product where "close enough" holds up over time. That means correct nailing patterns and fastener type, proper clearance from grade and roof lines, correctly lapped and sealed joints, and a compliant weather-resistive barrier and flashing behind the board, not just caulk covering gaps. We install to those specs as a baseline, not an upsell, because in a region with this much sustained rainfall, the water management behind the siding matters as much as the siding itself.
Color and Maintenance Reality
ColorPlus finishes come in a curated palette designed to hold color in real weather, and Hardie backs the finish separately from the board. You'll still want to keep gutters clean and address any moss buildup on shaded walls, but you're not looking at repainting on the same cycle you would with wood or a field-applied finish.
Why We Don't Hedge on This
We could offer three or four siding products and let homeowners pick based on price alone. We don't, because we'd rather stand behind fewer callbacks and a warranty that means something than sell a cheaper option we know struggles with moss, moisture, or coastal salt exposure over a Bellingham winter. When we say Hardie is what we install, it's because it's what we'd put on our own homes.
If you're weighing siding options for a home in Bellingham or elsewhere in Whatcom County, we're happy to walk your property, look at your exposure and existing siding condition, and talk through what a Hardie system would look like — no pressure, no obligation. Reach out for a free estimate.