Homeowners in Lynden almost always ask a version of the same question before they sign anything: how long is this actually going to take, and what does the crew do day to day? For a typical 1,800 to 2,800 square foot farmhouse, rambler, or two-story home in Lynden or the surrounding Whatcom County countryside, the hands-on installation work — from tear-off through final trim — usually runs five to ten working days once a crew is on site full time. The full project, however, from signed contract to the day Alpine Exteriors hands you a broom-clean yard, typically spans six to twelve weeks. Most of that window isn't spent on your wall; it's spent ordering material, waiting on any required permit review, and working around the weather.
Lynden sits inland along the Nooksack River lowlands, but wind-driven rain off Bellingham Bay and the Strait of Georgia still reaches this far into the county, and persistent fall-through-spring rain is the single biggest scheduling factor for siding work here. Crews will not install house wrap or new siding over wet or actively-drying sheathing, so a run of soaked days can push a project a week or more past the original estimate. Late spring through early fall is the most predictable window for scheduling; jobs booked November through March need built-in weather buffer from the start, and we tell homeowners that up front rather than promising a date we can't control.
Before a single piece of old siding comes off, a few things need to be settled. Whether your project needs a permit depends on scope and jurisdiction. Inside Lynden city limits, a straightforward like-for-like re-side — same footprint, no structural changes — is often handled without a full building permit. But if the scope includes replacing damaged sheathing, altering the water-resistive barrier assembly, or adding exterior insulation thick enough to change wall thickness or window/door trim depth, the City of Lynden building department typically wants the work reviewed against the Washington State Energy Code before it starts. If your property sits in unincorporated Whatcom County rather than inside city limits — which is common for the farms and acreage properties around Lynden — that review runs through Whatcom County Planning and Development Services instead, on a separate intake process and queue. Alpine Exteriors confirms which jurisdiction applies before filing anything, so you're not caught between two departments mid-project.
HOA and architectural review matters less in Lynden proper, which is mostly agricultural and single-family land without dense covenant structure, but it comes up often elsewhere in our service area — Sudden Valley is the clearest example, where an architectural control committee has to approve siding color and material before an order goes in. If you live in any covenanted community, get that approval in writing before we order product; a color change requested after material has shipped can add real weeks to the schedule.
Material lead time is where projects most often slip, and it's worth planning around rather than being surprised by. Standard-color fiber cement siding is usually stocked regionally and can move quickly, but factory-finished custom colors add genuine lead time, often several weeks. Engineered wood siding runs on a similar cycle. Vinyl siding in common colors is typically the fastest to source, while insulated vinyl, steel panel, or specialty trim profiles can take longer since much of that material ships in from outside the immediate Pacific Northwest supply chain. We place material orders as soon as the contract and any required approvals are final, because Whatcom County's relatively thin local inventory means popular colors and profiles can back up during the busy summer install season.
Once material is on hand and any needed permit is issued, the physical work follows the same sequence on nearly every project:
A little preparation on your end keeps the schedule moving. Before crews arrive, it helps to:
If a permit was pulled, the relevant jurisdiction — City of Lynden or Whatcom County — performs its own inspection at the appropriate stage, typically before the wall is closed and again at final. Separately, Alpine Exteriors runs its own quality check on every elevation: reveal consistency, fastener pattern, flashing laps, and caulk lines. Crews do a magnetic sweep of the yard and driveway for stray nails and staples, and all old siding, house wrap, and packaging debris is bagged or bin-loaded and hauled off. The last step is a walkthrough with you, comparing finished work against the original scope of work line by line, noting any punch-list items — a touch-up spot, a trim reveal, a downspout reattachment — and getting those closed out before the job is considered complete.
New siding is close to maintenance-free compared to what it replaced, but it isn't zero-maintenance in this climate. Whatcom County's damp, shaded conditions — especially on north- and west-facing walls that catch less sun and more wind-driven rain — grow moss and green algae film over time on almost any siding material. A soft wash with a garden hose and mild cleaner once a year keeps that from building up and staining; a pressure washer used incorrectly can force water behind panels or damage caulk lines, so we walk homeowners through the safe way to clean their specific material. It's also worth a yearly walk-around to check caulking at trim and window returns, since UV and temperature swings — including the sharper freeze-thaw cycling that shows up in the foothills toward Mount Baker on colder winter mornings — can work sealant loose over several years. Keep gutters clear; a clogged gutter sheeting water down a wall defeats even a well-installed rainscreen and WRB system.
Warranty coverage on a siding job has two separate parts, and it's worth knowing the difference. The manufacturer's product warranty covers material defects and is set by the siding maker, with terms that vary by product line and finish. Separately, Alpine Exteriors provides a workmanship warranty covering the installation itself — the part that's under our control. We hold Washington contractor license ALPINI751OW, and we go over both warranty documents with you at project close so you know exactly what's covered by whom and for how long.
Hands-on installation for a typical single-family home usually takes five to ten working days once a crew is on site, but the entire project — including permitting, material ordering, and weather buffer — commonly runs six to twelve weeks from signed contract to final walkthrough. Winter jobs run longer because of Whatcom County's persistent rain; summer jobs are the most predictable.
It depends on scope and jurisdiction. A simple like-for-like re-side inside Lynden city limits often doesn't require a full building permit, but work that touches sheathing, the water-resistive barrier, or adds exterior insulation usually triggers review against the Washington State Energy Code. Properties outside city limits go through Whatcom County Planning and Development Services instead of the city, and Alpine Exteriors confirms which office applies before filing.
Sometimes, and it's more common on older homes with wood or hardboard siding that's spent years exposed to this region's persistent rain. Rot most often turns up around window sills, deck ledgers, and low wall sections near grade. We photograph any damage and discuss repair costs with you before closing the wall back up — it's handled as a change order because it genuinely can't be predicted until the old siding is off.
There isn't one universal answer, since it depends on your budget, the home's exposure, and your maintenance preferences. Fiber cement resists moisture and moss buildup well and holds paint a long time. Engineered wood is lighter and often more budget-friendly but needs careful flashing and sealed cut edges to perform well in a wet climate. Vinyl is low-maintenance and cost-effective but can look dated on some home styles. We walk through the tradeoffs for your specific house and exposure rather than recommending one product for every home.
If you're weighing a siding replacement in Lynden, Ferndale, Bellingham, Blaine, Birch Bay, Sudden Valley, or the islands, the most useful next step is an on-site look at your walls, not a guess over the phone. Alpine Exteriors will walk the exterior with you, talk through what's likely under your existing siding, and lay out a realistic timeline and cost range before anything is ordered. Reach out to schedule a walkthrough and get a written scope you can actually plan around.