Ferndale Siding Siding Built for Life on Lummi Island
Lummi Island sits right in the path of everything Puget Sound weather can throw at a house: salt-laden air off the water, wind-driven rain that finds every gap in a wall system, and a wet season long enough to turn north-facing siding green before summer ever shows up. Homes here don't get a break from moisture the way inland properties do, and the exterior products that hold up fine in a drier part of the state often struggle on the island. We've seen enough siding failures around Whatcom County to know which products are worth putting on a home near the water and which ones aren't.
What the Island Climate Does to Siding
Three things drive most of the exterior problems we see on island and near-shore homes:
- Salt air. Airborne salt accelerates corrosion on fasteners and trim, and it breaks down cheap coatings faster than inland exposure ever would.
- Driving rain. Wind off the water doesn't just fall on a wall, it drives sideways into laps, seams, and butt joints. Any siding product with weak moisture resistance at the seams will eventually take on water.
- Extended moss and mildew season. Shaded, north- and west-facing walls stay damp for months at a stretch. Wood-based products absorb that moisture; some organic-fiber composites do too. Over years, that's rot, swelling, and paint failure.
None of this is unique to Lummi Island, but the combination is more constant here than in a lot of the county. It's why we've been deliberate about which siding product we put our name behind.
Why We Install James Hardie Fiber Cement — and Nothing Else
Ferndale Siding Company installs James Hardie fiber cement siding exclusively. We don't install vinyl, LP SmartSide, Cemplank, Allura, or primed wood products like spruce or cedar. That's not a marketing position, it's a decision we made after years of doing tear-offs and repairs on homes where the original siding simply couldn't handle a marine climate long-term.
Fiber cement is non-combustible and dimensionally stable, meaning it doesn't expand, contract, or absorb moisture the way wood-based and some engineered wood products do. James Hardie's ColorPlus factory finish is baked on under controlled conditions, which gives it better fade and chip resistance than field-applied paint. And Hardie builds climate-specific HZ product lines engineered for exactly the kind of wet, coastal conditions Lummi Island deals with. The warranty is transferable, which matters to a lot of island buyers thinking about resale down the road.
We're not saying every other product is worthless — vinyl and engineered wood siding both have a place and can perform fine in the right setting. But we stopped installing them because we didn't want to keep coming back to fix problems that fiber cement, installed correctly, simply doesn't have. Correct installation matters as much as the material: proper flashing, fastener placement, and clearances are what actually keep water out over the long run.
Full Exterior Work, Not Just Siding
Siding is our specialty, but a home's exterior works as one system. We also handle:
- Roofing — the first line of defense against the same driving rain that stresses siding
- Windows — proper flashing and integration with new siding is where a lot of leaks actually start
- Decks — built to hold up to sun, salt spray, and constant damp exposure
Handling all four means we're not pointing fingers between trades when something needs attention. One crew, one standard, one point of accountability for how the whole exterior performs.
Why a Local Crew Matters Here
Working on Lummi Island takes planning that a lot of contractors from outside Whatcom County aren't set up for. Materials, crews, and equipment all have to be staged and scheduled around ferry access, which means the project timeline has to be built differently than a mainland job. A crew that already knows how to plan around that logistics reality will get your project done with a lot less friction than one learning it for the first time on your house.
We're based in Ferndale and work throughout Whatcom County, so we already understand what island and near-shore properties are up against — not just in terms of weather, but in terms of getting the right materials to the right place on schedule.
What to Expect From an Estimate
When we come out to look at a Lummi Island property, we're checking more than the visible siding. We look at trim condition, existing moisture damage, roof-to-wall transitions, and window flashing, since all of it affects how new siding will perform. You'll get a straight answer about what your home actually needs, not an upsell.
If your siding is showing moss, chalking, soft spots, or just isn't keeping up with the weather anymore, we're happy to take a look. Reach out for a free, no-pressure estimate and we'll walk the property with you and talk through what makes sense for your home.