Lynden Kendall's Climate Is Harder on Siding Than It Looks
Kendall sits in the foothill country east of Lynden, close enough to the mountains that the weather behaves differently than it does a few miles away in town. Homes here see more standing moisture — heavier tree cover, cooler shaded exposures, and a longer wet season that keeps north- and west-facing walls damp well after a storm has passed. Add in the driving rain that comes off Whatcom County's marine air and the salt-tinged moisture that works its way inland from the Sound on windy fronts, and you've got a combination that punishes any siding material that isn't built to shed water and resist rot.
The visible result is almost always the same: moss and green-black staining that creeps up from the bottom courses, paint that blisters or peels years before it should, and — on wood or engineered wood products — soft spots where water finally found a seam. None of this is unusual for the area. It's just what happens to a house here over one to two decades if the siding system underneath isn't matched to the climate.
Signs a Kendall Home Needs Siding Replacement, Not Just Repair
Not every siding problem means a full tear-off. But a few signs tell us the material itself has reached the end of its useful life rather than just needing a patch or a repaint:
- Moss or algae that returns within months of being pressure-washed off
- Soft, spongy, or crumbling siding when you press on it, especially near the bottom edge or below windows
- Paint that won't hold — bubbling, flaking, or peeling within a year or two of a repaint
- Visible gaps, warping, or buckling panels, particularly on walls that get the most weather
- Rising energy bills with no other explanation, suggesting the water-resistive barrier behind the siding has failed
- Interior signs — musty smell, staining on interior drywall, or trim that's swelling near exterior walls
If you're seeing two or more of these, especially on a home more than 15-20 years old with the original siding still on it, it's worth a real inspection rather than another round of caulk and paint.
What a Correct Siding Replacement Job Actually Involves
Siding replacement isn't just pulling off old boards and nailing up new ones. In a climate like Kendall's, the parts you don't see matter more than the parts you do:
Tear-off and sheathing check
Every old panel comes off so we can see the sheathing underneath. This is where hidden rot usually shows up — often around window and door openings, at the base of walls, and anywhere the old siding was face-nailed without proper flashing. Damaged sheathing gets replaced before anything new goes up. Skipping this step is the single most common shortcut that leads to problems five years later.
Water-resistive barrier and flashing
A new weather-resistive barrier goes over the sheathing, lapped correctly so water is always directed outward and down, never trapped behind it. Flashing gets installed at every window, door, and horizontal trim transition — the spots where nearly all siding failures actually start. This layer does more to protect a Kendall home long-term than the siding material itself.
Fastening and clearances
Fiber cement siding has specific nailing patterns, fastener types, and minimum clearances from grade, roofing, and decks that are laid out in the manufacturer's installation manual. These aren't optional guidelines — get them wrong and you void the warranty and open the door to moisture problems, even with a premium material.
Trim, caulking, and finish details
Corner boards, trim, and caulking at penetrations are finished to shed water rather than collect it. On a home in a wetter, shadier microclimate like Kendall's, these details are what keep moss and staining from taking hold again in the first few years.
Why We Install Only James Hardie Fiber Cement
We don't offer vinyl, LP SmartSide, primed wood, or cedar as options — not because those products don't have a place in the market, but because we've made a professional call about what holds up on homes in this climate without becoming a maintenance burden for the owner. Vinyl can warp and fade, and it doesn't stop moisture from finding its way behind it. Engineered wood products and primed wood siding rely on paint and caulking staying perfect to keep moisture out, which is a hard standard to meet year after year in a place that stays wet as long as Whatcom County does. Cedar looks great new but demands ongoing refinishing to keep performing, and that upkeep schedule is exactly what most homeowners want to get away from when they replace siding in the first place.
James Hardie fiber cement is non-combustible, engineered specifically for high-moisture, high-UV climates through its HZ5 product line, and finished at the factory with ColorPlus technology — a baked-on finish that holds color far longer than field-applied paint and comes with its own finish warranty separate from the product warranty. It doesn't rot, it doesn't attract insects, and it holds up to the freeze-thaw and driving rain cycles that define a Kendall winter. That combination is why it's the only siding system we put our name on.
Our Process for a Kendall Siding Replacement
- Walk-through and assessment — we look at your current siding, sheathing condition where visible, drainage around the foundation, and the specific exposures on your lot (shade, tree cover, prevailing wind) that affect how the new siding will perform.
- Written estimate — a clear scope of work, product and color selection from the Hardie lineup, and a straightforward price, with no vague allowances buried in the fine print.
- Tear-off and sheathing repair — old siding removed, sheathing inspected and repaired as needed before anything new is installed.
- Barrier, flashing, and installation — water-resistive barrier, flashing at all openings, and Hardie panels installed to manufacturer specification for fastening, clearances, and joint treatment.
- Trim, caulking, and final finish — details finished to shed water, not collect it.
- Final walk-through — we go over the finished job with you before we call it done.
Cost Factors for Siding Replacement in Kendall
Every home is different, and a real number only comes from an on-site look. But these are the factors that move the price up or down on most projects in this area:
| Factor | Why It Matters |
|---|---|
| Sheathing condition | Hidden rot found during tear-off means added repair before new siding can go on |
| Home size and wall complexity | More corners, gables, and trim details mean more labor and material |
| Siding profile and color | Lap width, shingle-style panels, and custom ColorPlus colors vary in material cost |
| Number of stories | Multi-story homes and steep sites require more scaffolding and staging time |
| Trim and accessory work | Replacing trim, fascia, or soffit alongside siding adds scope but often saves a second mobilization later |
| Access and site conditions | Tree cover, slope, and driveway access around Kendall properties can affect staging and timeline |
A Quick Comparison: How Materials Hold Up Here
| Material | Typical Behavior in This Climate |
|---|---|
| Vinyl siding | Low upfront cost, but can warp in heat and doesn't stop moisture reaching the wall assembly behind it |
| Primed wood / cedar | Needs ongoing repainting and sealing to keep moisture out; upkeep schedule is demanding in a wet climate |
| Engineered wood (LP SmartSide-type products) | Improved over older wood products, but still relies on field-applied finish and sealed edges staying intact |
| James Hardie fiber cement | Non-combustible, factory-finished, engineered for moisture and UV exposure, backed by a strong transferable warranty |
Why a Crew That Already Works Kendall Matters
A siding job done by a crew unfamiliar with this specific area tends to treat every home the same way — same barrier detailing, same assumptions about drainage, regardless of whether the house sits in full sun near town or in a shaded, damp pocket further out toward the foothills. A crew that already works in Kendall knows which walls typically hold moisture longest, which sites need extra attention to drainage and clearance from grade, and how the moss and staining patterns on a given exposure usually play out over time. That's not guesswork — it's the accumulated pattern recognition of doing this work repeatedly in the same conditions, and it shows up in fewer callbacks and a job that still looks right five and ten years out.
It also means straightforward logistics — scheduling, permitting through Whatcom County where required, and material delivery — without the delays that come from a crew learning the area for the first time on your project.
Keeping New Siding Looking Right
Even the best siding system benefits from basic upkeep, especially in a climate that stays damp as long as this one does:
- Rinse siding annually, especially shaded or north-facing walls where moss tends to establish first
- Keep gutters clear so overflow doesn't run down the face of the siding
- Trim back vegetation and tree limbs that keep walls shaded and damp longer than necessary
- Recaulk trim joints if you ever notice gaps, rather than waiting for a bigger problem
- Watch for any soft spots or staining after major storms and address them early
With Hardie's factory finish, you're not repainting every few years the way you would with wood — but a little seasonal attention goes a long way toward keeping a Kendall home looking the way it did the day the job finished.
Get a Straight Answer for Your Home
If your siding is showing its age, staining faster than it used to, or you're just planning ahead, we're happy to take a look and give you an honest read on what your home actually needs. Reach out for a free, no-pressure estimate — no hard sell, just a clear picture of your options and what a correct job costs.