Siding Built for Lynden's Climate
Lynden sits inland from Blaine and the Strait of Georgia, but that doesn't spare it from the same weather pattern that wears down siding across Whatcom County: long stretches of wet, overcast days, driving rain that comes in sideways off the water, and a moss and mildew season that can run most of the year in shaded, north-facing spots. Add in the salt-tinged air that carries inland from the coast on a west wind, and you've got a combination that's tough on the wrong siding material. We see it on a lot of the homes we visit in Lynden — paint failing early, trim swelling at the joints, and moss creeping up from the foundation line where sprinklers or shade keep the wall damp longer than it should be.

Why Material Choice Matters Here
A lot of Lynden's housing stock includes older wood and engineered-wood siding that was never really matched to this climate. Wood-based products absorb moisture at cut edges and seams, and once that moisture gets in, it doesn't dry out fast in a Whatcom County winter. That's the root of most of the swelling, delamination, and rot calls we get. It's also why we standardized on James Hardie fiber cement siding for every job we do, including here in Lynden. Hardie board is cement-based, not wood-based — it doesn't absorb water the same way, it won't feed moss and mildew growth like an organic material can, and it holds up to driving rain and salt air without the maintenance cycle that wood and wood-composite products demand.
James Hardie's HZ product lines are engineered specifically for climate zones like ours, and the factory-applied ColorPlus finish means the color coat is baked on before the boards ever reach the jobsite — it resists fading and chipping far better than field-applied paint, which matters a lot when your painting season is short and your rainy season is long. We only install Hardie. We don't do vinyl, LP SmartSide, Cemplank, Allura, primed spruce, or cedar, because we've seen how those products perform over time in this specific climate, and we'd rather stand behind one system we trust completely than offer a menu of options with different maintenance headaches attached.
What a Siding Job Looks Like for a Lynden Home
Every project starts with a look at the existing wall assembly, not just the siding itself. In this climate, what's behind the siding matters as much as what's in front of it — proper water-resistive barrier, correctly lapped flashing at windows and doors, and rainscreen or drainage gap detailing where it's called for. A lot of moisture problems we find aren't caused by the siding material at all; they're caused by water getting trapped behind it with nowhere to go. We address that during install, not after.
- Removal of failing siding and inspection of sheathing for hidden rot or moisture damage
- Correction of flashing and moisture barrier details before new siding goes on
- Installation of James Hardie fiber cement panels or lap siding to manufacturer spec, including proper fastening and clearances
- Trim, corner, and joint detailing built to shed water rather than trap it
- A finished exterior backed by Hardie's product warranty and our own workmanship warranty
Roofing, Windows, and Decks Too
Siding rarely fails in isolation. A leaking roof or a failed window seal will find its way into a wall assembly no matter how good the siding is, so we handle roofing, windows, and decks as well — either alongside a siding project or as standalone work. In a climate that gets as much sustained rain as Lynden does, it's worth having one crew look at the whole envelope rather than patching one system while another keeps feeding moisture into the house.
Why a Local Crew Matters
Whatcom County weather isn't generic Pacific Northwest weather — the mix of coastal salt exposure, valley fog, and heavy seasonal rain around Lynden has its own rhythm, and it shows up in how buildings age here. A crew that works this specific area regularly knows which details tend to fail first, which sides of a house take the worst weather, and how to sequence a job around the wet season instead of fighting it. That local knowledge is part of what goes into every estimate we write, not just the material list.
Get a Straight Answer on Your Siding
If you're noticing moss buildup, paint failure, or soft spots on your home's exterior, it's worth having someone take a real look before those small problems turn into structural ones. We're happy to walk your property, point out what we see, and give you an honest assessment of what your home actually needs. Reach out for a free, no-pressure estimate — there's a form right below this page to get started.
Blaine Siding