Lynden Siding Siding in Custer
Custer sits in the northern stretch of Whatcom County, close enough to the coastline that salt-laden air is a regular part of the weather mix, and far enough into the Pacific Northwest rain belt that moss, mildew, and prolonged dampness are just part of owning a home here. If you've lived in or around Custer for more than a winter or two, you already know what the exterior of a house goes through in this part of the state. The question is whether your siding is actually built to handle it.
What Custer's Climate Does to Exterior Siding
Three things define the exterior environment in this part of Whatcom County, and each one wears down siding in a different way:
- Salt air: Proximity to the water means airborne salt settles on exterior surfaces over time. On untreated wood or certain composite products, that salt exposure accelerates surface breakdown and finish failure, especially on walls that face open exposure.
- Driving rain: Whatcom County storms rarely come straight down. Wind-driven rain gets pushed sideways into wall assemblies, seams, and butt joints — which is exactly where inferior siding materials and poor installation work show their weaknesses first.
- A long moss season: Between the moisture, the shade from mature trees common in this area, and mild temperatures that never really dry things out for long, moss and algae find plenty of time to take hold on north-facing and shaded walls. On the wrong material, that growth holds moisture against the surface and speeds up rot or paint failure underneath it.
None of this is unusual for Custer or the surrounding communities — it's just the reality of building and maintaining a home in this stretch of the Pacific Northwest. What matters is choosing an exterior material that's actually engineered for it.
Why We Only Install James Hardie Fiber Cement
We get asked fairly often why we don't offer vinyl, LP SmartSide, or other composite and engineered wood siding products. The honest answer is that after years of installing and repairing exteriors in this climate, we've seen how those materials perform over a full life cycle here — and we'd rather stand behind one product we trust completely than offer several we have reservations about.
James Hardie fiber cement is non-combustible, dimensionally stable, and doesn't absorb moisture the way wood-based or wood-composite siding can. That matters directly in a place like Custer:
- It doesn't swell, warp, or delaminate from repeated wet-dry cycles the way engineered wood products can when moisture gets behind or into the panel edges.
- The ColorPlus factory finish is baked on and warranted against fading and flaking, which holds up better under salt air exposure than field-applied paint.
- Hardie's HZ5 product line is specifically engineered for climates with higher moisture exposure — relevant for coastal-influenced areas like this one.
- Because it's fiber cement, it doesn't feed mold or fungal growth the way wood fiber can, which matters given how long moss and algae have to work on a shaded, damp wall here.
We're not going to tell you other siding products are junk — most of them do what they're designed to do, within their limits. But installing exteriors in Whatcom County for as long as we have, we've made a professional call to standardize on one material we're confident will hold up to salt air, wind-driven rain, and a moss season that doesn't take much of a break. That's James Hardie, and it's the only siding we put on homes.
Full Exterior Services for Custer Properties
Siding is our specialty, but the exterior of a home is a system, and we treat it that way. Alongside Hardie siding installation and replacement, we handle:
- Roofing — because a compromised roofline is one of the fastest ways water gets behind good siding
- Windows — proper flashing and integration at window openings is one of the most common failure points we find during siding tear-offs
- Decks — built to hold up to the same rain and moisture exposure as the rest of the exterior
When these components aren't installed or flashed correctly together, water finds the gaps — and in a climate like Custer's, it doesn't take long to find them. That's why we look at the whole exterior, not just the wall cladding.
Why a Local Crew Matters Here
A siding crew that mostly works drier inland regions or warmer climates isn't going to have the same instincts around flashing details, house wrap integration, and moisture management that a crew working Whatcom County's coastal-influenced weather develops over time. We work in this specific climate — salt air, driving rain, shaded moss-prone walls — day in and day out, and that shows up in the small installation decisions that determine whether a siding job holds up for twenty years or starts showing problems in five.
If you're in Custer and thinking about your home's exterior — whether it's siding nearing the end of its life, a roof that needs attention, or windows that aren't performing the way they should — we're happy to come take a look. We'll give you an honest read on where things stand and what we'd recommend, with no pressure to move forward. Reach out below for a free estimate.