Exterior Work Built for Ferndale Homes
Ferndale sits in the heart of Whatcom County, close enough to the Salish Sea that salt-laden air, driving rain off the water, and long gray stretches of moss-friendly weather are just part of owning a home here. We've worked on houses throughout this corner of northwest Washington long enough to know that what protects a home in a drier inland climate often doesn't hold up the same way this close to the coast. That's why we pay close attention to the exterior systems we put on Ferndale homes, not just the materials themselves.
What Ferndale's Climate Does to a Home's Exterior
A few things show up again and again on homes in this area:
- Moisture that lingers. Long wet seasons mean siding, trim, and roofing don't get much of a chance to fully dry out between rain events. Anything that absorbs water or traps it behind the surface is working against itself for months at a time.
- Moss and organic growth. Shaded north-facing walls, roof valleys, and anywhere airflow is limited tend to grow moss and algae faster here than in drier parts of the state. Left alone, that growth holds moisture against the surface and accelerates wear.
- Salt air exposure. Being near the Salish Sea means airborne salt is a real factor for paint, fasteners, and any material sensitive to corrosion or moisture wicking, even at a distance from open water.
- Wind-driven rain. Storms coming off the water don't just fall straight down — they get pushed sideways into walls, seams, and trim joints, which is exactly where poor installation shows up first.
None of this is unique to any one street or neighborhood in Ferndale — it's the nature of Whatcom County's marine climate, and it's the baseline we design every installation around.

Why We Only Install James Hardie Fiber Cement
We made a decision as a company to install James Hardie siding exclusively — not vinyl, not LP SmartSide, not cedar, not other fiber cement brands. That's not a marketing angle, it's a standard we hold ourselves to because of what we've seen these products do (or fail to do) in exactly the kind of weather Ferndale gets.
Vinyl siding can work fine in mild, dry climates, but it softens and warps in direct heat and gets brittle in cold snaps, and it relies heavily on the wall assembly behind it to manage moisture, since the panels themselves aren't doing much of that work. Wood products like cedar or primed spruce look great initially but require a real maintenance commitment — recaulking, repainting, and staying ahead of rot — that most homeowners don't have the time or budget for over a 20-30 year span in a wet climate. Engineered wood siding like LP SmartSide performs reasonably well when detailed and maintained correctly, but any breach in its protective coating opens the door to moisture absorption and swelling, and that margin for error is thin in a climate that stays wet for months at a stretch.
James Hardie fiber cement is non-combustible, doesn't swell or rot when it gets wet, and holds paint and color far longer than wood-based alternatives because the ColorPlus factory finish is baked on rather than field-applied. Hardie also engineers specific product lines (their HZ5 designation, for example) around regional climate zones, which matters in a place that deals with sustained damp weather rather than occasional rain. Add in a strong transferable warranty and a material that simply isn't a food source for the moss and mildew this area is known for, and it's a straightforward call for us.
More Than Siding: Roofing, Windows, and Decks
Siding is only one piece of how a home's exterior handles Ferndale's weather. We also handle roofing, window replacement, and deck construction, because these systems all have to work together. A roof with poor drainage or aging flashing will send water straight into a wall assembly no matter how good the siding is. Windows that aren't properly flashed and sealed become the weak point wind-driven rain finds first. And decks built without the right material and fastener choices for a wet coastal climate age fast, both structurally and cosmetically.
When we look at a Ferndale home, we're looking at the whole exterior envelope — how the roof sheds water, how the siding and trim manage what gets past that, how windows are integrated into the wall, and how a deck holds up to sun, rain, and moss over the years. Fixing one piece in isolation rarely solves the underlying problem.
Why a Local Crew Matters
A crew that works Whatcom County regularly knows what to expect before they show up. That means understanding which sides of a house take the worst of the weather, how much lead time moss and algae growth needs before it becomes a real maintenance issue, and how local wind patterns off the water affect where water actually ends up on a wall. It also means being available if a question comes up after the job is done, rather than being a name from a one-time out-of-area crew.
We're not trying to sell every Ferndale homeowner on a full siding replacement. Sometimes the right call is roof repair, window upgrades, or addressing a moisture issue before it becomes bigger. But when siding is the right conversation to have, James Hardie is what we recommend and what we install, because it's what we trust to hold up to this specific climate over the long run.
If you're dealing with aging siding, a roof that's due for attention, drafty windows, or a deck that's seen better days, we're happy to take a look and give you an honest, no-pressure estimate — just fill out the form below to get started.
Birch Bay Siding