Ferndale Siding Siding Replacement for Custer Homes
Custer sits in the quieter, more rural stretch of Whatcom County between Ferndale and Blaine, close enough to the coast that salt air is a real factor in how exterior materials age, and far enough out that many homes sit on larger lots with more tree cover, more shade, and more standing moisture than you'd find closer to town. That combination shapes what we look for when we inspect siding out here, and it shapes what we recommend homeowners put back up when the old siding has run its course.
We're a local exterior contractor working siding, roofing, windows, and decks across Ferndale and the surrounding Whatcom County communities, including Custer. We don't cover every siding brand on the market — we install James Hardie fiber cement exclusively, for reasons we'll get into below. This page is about what that looks like specifically for a Custer property.
What the Climate Does to Siding Out Here
Salt Air and Coastal Exposure
Custer's proximity to the Strait of Georgia and Puget Sound means airborne salt is part of daily life for exterior materials, even a few miles inland. Salt accelerates corrosion on fasteners and metal trim, and it can work into porous or poorly sealed siding materials over years of exposure. It's a slow process, but it's a constant one, and it's part of why we're picky about what goes on a wall out here — not just the siding panel itself, but the fasteners, flashing, and trim details behind it.
Driving Rain
Whatcom County gets a lot of rain, and a good share of it doesn't fall straight down — wind off the water pushes it sideways into walls, especially on the west and south-facing sides of a house. That kind of driving rain finds every gap, seam, and undersized lap in a siding system. Materials that swell, wick moisture, or rely on paint film alone to stay sealed tend to show problems first in this kind of exposure: cupping, soft spots, and paint failure along butt joints and bottom edges.
Moss Season
Between the shade from mature trees on many Custer lots and the long stretch of wet months from fall through spring, moss and algae growth on siding, trim, and roofing is a near-constant maintenance issue. It's mostly cosmetic on siding, but it holds moisture against the surface longer than a clean, dry wall would, and over time that matters for anything underneath that isn't fully sealed.
Why We Only Install James Hardie
Homeowners in Custer ask us about vinyl, LP SmartSide, and other fiber cement brands fairly often, usually because they're comparing quotes or because a previous contractor offered something else. We're upfront that we don't install those products, and we think the reasoning is worth explaining rather than just stating.
- Vinyl is inexpensive and low-maintenance in mild climates, but it's a thin material that can warp in temperature swings, crack in impacts, and it relies on overlapping panels rather than a sealed, monolithic surface — not ideal against sustained driving rain and salt exposure.
- LP SmartSide and similar engineered wood products perform well when installation and maintenance are perfect, but they're wood-based, and wood-based siding depends heavily on caulking, paint maintenance, and cut-edge sealing staying intact year after year. In a climate with this much sustained moisture, that's a maintenance burden we're not willing to put on a homeowner's shoulders.
- Other fiber cement brands (Cemplank, Allura) are chemically similar to Hardie, but we've standardized on one product line so we know exactly how it performs, exactly how it should be installed, and exactly what its warranty covers — rather than juggling installation specs and product behavior across multiple brands.
James Hardie fiber cement is non-combustible, dimensionally stable in wet-dry cycling, and comes with a factory-applied ColorPlus finish that's baked on under controlled conditions rather than field-painted — which matters a lot in a place where field-applied paint is fighting rain and humidity for weeks at a time during application season. Hardie's HZ5 product line is engineered specifically for climates with sustained moisture and freeze-thaw cycling, which fits Whatcom County's weather pattern well.
James Hardie Product Lines We Install
| Product | Best For | Notes |
|---|---|---|
| HardiePlank Lap Siding | Most Custer homes, traditional or farmhouse styles | Available in smooth or cedar-grain textures |
| HardiePanel Vertical Siding | Modern builds, accent walls, gable ends | Often paired with lap siding for a mixed look |
| HardieTrim | Corner boards, window and door trim, fascia | Matches the same durability profile as the field siding |
| HardieShingle | Accent gables, dormers | Staggered or straight-edge panel options |
What Siding Replacement Looks Like on a Custer Property
Inspection and Assessment
We start by walking the exterior and checking for the signs that actually matter: soft or spongy spots when pressed, paint failure concentrated on specific elevations, staining below window sills and trim joints, and any moss or algae buildup that's holding moisture against the wall longer than it should. On properties with more tree cover, we also pay attention to how much sun different walls get, since shaded, damp walls age differently than sun-exposed ones.
Removal and Sheathing Check
Once old siding comes off, we check the sheathing and house wrap underneath before anything new goes up. This is the step that catches hidden water damage — and on rural or older Custer properties, it's not unusual to find some. Any compromised sheathing gets addressed before new siding goes on; installing over a bad substrate just hides a problem rather than fixing it.
Installation Details That Matter Here
- Correct fastener type and spacing to handle wind-driven rain without loosening over time
- Proper flashing and weather barrier integration at windows, doors, and roof-wall intersections
- Minimum clearance between siding and grade, decks, and roof lines to keep splash-back and standing moisture away from the bottom edge
- Correct caulking at butt joints, following Hardie's published installation specs rather than shortcuts
Fiber cement siding is less forgiving of installation shortcuts than some materials, but also less punishing over time when it's installed correctly — which is part of why installation quality matters as much as the product choice itself.
Roofing, Windows, and Decks
Siding rarely fails in isolation. On a lot of the inspections we do in Custer, the siding damage we're called out for traces back to a roofing issue — a failing gutter, a missing kick-out flashing, or an aging roof that's letting water run down behind the wall rather than off it. We handle roofing, windows, and decks alongside siding so we can address the actual source of a moisture problem, not just the visible symptom. Old, poorly sealed windows are a similar story — they're one of the more common paths for water to get behind a wall assembly, especially on the weather-facing sides of a house.
What Affects Cost
| Factor | Why It Matters |
|---|---|
| Home size and wall complexity | More corners, gables, and dormers mean more cutting, trim, and labor time |
| Extent of hidden damage | Sheathing repair or replacement adds cost beyond the siding itself |
| Siding profile and texture | Lap width, vertical panel accents, and shingle details vary in material and install time |
| Trim and accessory scope | Full trim replacement costs more than reusing sound existing trim |
| Access and site conditions | Tree cover, slope, and setback on larger rural lots can affect staging and labor |
We give every Custer homeowner a specific, itemized estimate after an in-person inspection — broad ranges without seeing the house aren't useful, and we'd rather walk your property than guess.
Signs It's Time to Replace, Not Patch
- Soft, spongy, or crumbling siding when pressed
- Paint that keeps failing in the same spots within a year or two of repainting
- Visible cracking, warping, or separation at panel joints
- Persistent moss or algae staining that returns quickly after cleaning
- Rising energy bills alongside visible drafts near exterior walls
- Siding that's original to a home more than 25-30 years old
Why a Local Crew Matters
Whatcom County's weather doesn't behave the same way statewide advice assumes it does, and a rural property near Custer doesn't get treated by hidden moisture the same way a tightly packed subdivision closer to Ferndale does. A crew that works this area regularly knows which elevations tend to take the worst of the driving rain, which lots hold onto moss longer because of tree cover, and what correct flashing and sheathing looks like once salt air and years of wet-dry cycling have had their say. That local pattern recognition is part of what a homeowner is paying for when they hire a contractor who actually works the area, not just one passing through on a regional route.
If your Custer home's siding is showing its age, we're happy to come take a look and give you a straightforward, no-pressure estimate — just fill out the form below.