How long does it typically take to build a custom deck?

Most custom decks take anywhere from a few days to a couple of weeks once construction starts, depending on size, material, and whether stairs or multiple levels are involved. Permitting and material lead times often add more to the calendar than the actual build. We'll give you a realistic timeline specific to your project during the consultation.

What should I ask a contractor before hiring them to build a deck?

Ask whether they pull permits and schedule inspections themselves, what fasteners and hardware they use, and whether they'll show you how footings and ledger connections are handled before they're covered up. A contractor who's vague about any of those is worth being cautious about. It's also fair to ask how long they've worked in your specific area and climate.

Is composite decking worth the extra cost over wood?

It depends on how much time you want to spend on maintenance versus how much you want to pay upfront. Composite costs more initially but skips the recurring sealing and staining that wood needs, which matters in a climate this wet. Shaded yards especially benefit from composite since damp wood in low-sun spots needs more upkeep to stay ahead of moss.

Does cedar decking really need yearly maintenance in this climate?

Cedar is naturally more rot- and insect-resistant than many woods, but "naturally resistant" doesn't mean maintenance-free, especially with the amount of rain this region gets. Without periodic sealing or oiling, cedar will gray and lose some of its water resistance faster here than in a drier climate. Staying on a sealing schedule is what actually gets you cedar's long lifespan.

Are building codes different for a deck in Aldergrove, BC versus Lynden, WA?

Yes — Whatcom County and the Township of Langley each have their own permitting process and code requirements, even though the two areas sit just minutes apart and share the same weather. Details like footing depth, guardrail specifications, and inspection steps can differ by jurisdiction. We confirm the specific requirements for your address before finalizing a design so the project isn't held up or reworked later.

Custom Deck Building for Aldergrove, BC Homes

A deck built for Aldergrove has to earn its keep year-round, not just look good the week it's finished. This community sits close enough to the border and the coast that homes take on the same weather Lynden and the rest of Whatcom County deal with — driving winter rain, salt-tinged air off the Sound, and long stretches of gray, damp months where moss and algae get a real foothold on any horizontal wood surface. A deck that isn't built with that climate in mind starts showing problems within a few seasons: soft boards, rusted fasteners, slick spots, and rot hiding where you can't see it. This page covers what a correctly built custom deck looks like for a home in this area, how we approach the job, and why it matters to hire a crew that already knows this ground.

Building a Deck That Holds Up in Aldergrove's Coastal Climate

Decks fail from the ground up and from the fasteners out, and both of those failure points get stressed harder here than in a dry inland climate.

Salt Air and Metal Fasteners

Even a few miles from open water, salt-laden air carries far enough inland to accelerate corrosion on cheap or mismatched hardware. Galvanized nails and coated deck screws that would last decades in a dry climate can start rusting and staining the wood around them within a few years here. We spec stainless or heavy hot-dip galvanized fasteners and hardware rated for coastal exposure, and we make sure the metal connectors — joist hangers, post bases, hurricane ties — are rated to match, not just the visible screws.

Driving Rain and Deck Drainage

Rain here doesn't just fall straight down — wind-driven rain gets pushed sideways into ledger connections, under railings, and into any gap where flashing was skipped. The single most common failure point on older decks we're called out to inspect is a ledger board attached to the house without proper flashing, which lets water track behind the siding and rot the rim joist from the inside. Every deck we attach to a house gets flashed correctly at the ledger, and every deck gets built with enough slope and gapping between boards to shed water instead of holding it.

Moss, Algae, and Surface Traction

Whatcom County's long wet season grows moss on anything that stays damp and shaded, and a deck surface is exactly that. Beyond the appearance issue, moss and algae make boards slick and dangerous on stairs and ramps. Board spacing, surface texture, and how much sun and airflow the deck gets all affect how fast moss takes hold — we factor that into the design rather than leaving it as a maintenance problem you inherit later.

What a Correctly Built Custom Deck Involves

A deck that lasts is built right below the surface, not just on top of it.

Footings and Frame

Footings need to be sized and set to the correct frost depth and bear on undisturbed, load-rated soil — not just poured into a hole that looked deep enough. The frame underneath determines everything else: joist spacing that matches the decking material, beams sized for the actual span and load, and a ledger connection (when the deck attaches to the house) that's flashed and bolted, never just nailed.

Decking Material Choices

What sits on top of that frame matters just as much in this climate as the frame itself. We'll walk through the honest tradeoffs of each option for your project rather than pushing whatever's easiest to install.

Railings and Code Compliance

Any deck raised above a certain height needs a code-compliant guardrail — proper height, baluster spacing that won't allow a small child to pass through, and posts anchored to actually resist a lateral load, not just decorative fasteners. Building codes differ between jurisdictions on the Washington side and the BC side of the line, and we make sure whichever side your home falls on, the rail system meets what's actually required, not just what looks right.

Choosing the Right Decking Material for This Climate

There's no single "best" decking material — there's the right material for your budget, your maintenance appetite, and how much sun or shade the deck gets. Here's how the common options actually perform in a wet, mossy, salt-influenced climate:

Material	Upfront Cost	Maintenance	How It Handles This Climate
Pressure-treated fir/hem-fir	Lowest	Re-stain/seal every 1-2 years	Good rot resistance if sealed regularly; needs upkeep to fight moss and graying
Cedar	Mid	Oil or seal every 1-2 years	Naturally rot- and insect-resistant, ages well, but still needs sealing against constant damp
Composite decking	Higher	Occasional wash, no sealing	Won't rot or splinter, but can grow surface algae in shaded, damp spots and needs periodic cleaning
Tropical hardwood	Highest	Oil annually for color, otherwise low	Very dense and rot-resistant, holds up well to wet weather; premium price

Shaded, low-airflow deck locations — common on lots with mature trees or tight setbacks, which describes plenty of yards around here — push us toward composite or a well-sealed hardwood, since those spots stay damp longer after every rain. Open, sunnier decks give pressure-treated or cedar a fair shot at performing well with routine care.

Our Process, Start to Finish

Every custom deck we build follows the same sequence, whether the home is in Lynden proper or just across the line in Aldergrove:

On-site consultation — we look at your yard's drainage, sun exposure, grade, and how the deck will connect to the house before talking materials or layout.
Design and material selection — we lay out size, shape, railing style, and decking material based on your budget and how you'll actually use the space.
Permitting — we handle the permit application and make sure the design meets the requirements for your specific jurisdiction.
Footings and framing — footings are dug to proper frost depth, the frame is built to span and load requirements, and the ledger (if applicable) is flashed correctly.
Decking, railing, and finish work — boards, stairs, and railings go on with corrosion-resistant fasteners, followed by any sealing or finishing the material calls for.
Final walkthrough and inspection — we go over the finished deck with you and make sure any required inspections are scheduled and passed.

Permits and Working Across the Border

Aldergrove sits just across the border from Lynden, and while the climate on both sides of that line is the same, the permitting and code requirements are not. Whatcom County and the Township of Langley each have their own permit process, inspection schedule, and code details covering things like footing depth, guardrail specs, and setback rules. We don't guess on this — we confirm what's actually required for your specific address before design work locks in, so you're not stuck redoing framing to satisfy an inspector after the fact. If you're near the line and unsure which rules apply to your property, that's a conversation worth having before any lumber gets ordered.

Why Hire a Crew That Already Works This Area

A deck contractor who's only ever worked in a dry climate will make different assumptions than one who's replaced ledger boards rotted out from wind-driven rain, or re-set footings that heaved because they weren't dug deep enough for local frost depth. Working regularly in Lynden, greater Whatcom County, and communities just across the border like Aldergrove means we're not learning the local weather and code quirks on your project — we already know where decks around here tend to fail and we build to avoid those exact problems from day one.

Common Deck Problems We're Called Out to Fix in This Area

Soft or spongy decking boards from years of standing moisture
Rust streaks and loosening connections from non-coastal-rated fasteners
Rot at the ledger board where flashing was missing or installed wrong
Slick, moss-covered stairs and walking surfaces in shaded areas
Railings that wobble because posts weren't anchored to resist real load
Footings that have shifted or heaved from inadequate depth or poor soil bearing

If any of that sounds like your current deck, it's often more practical — and cheaper long-term — to rebuild correctly than to keep patching a structure with a bad foundation underneath it.

A Maintenance Checklist Worth Following

Even a well-built deck needs a bit of seasonal attention in this climate. A short annual routine keeps small issues from becoming structural ones:

Sweep debris out of board gaps each fall so water and organic matter don't sit and hold moisture
Check and clean gutters and downspouts near the deck so runoff isn't dumping onto or under it
Inspect fasteners and connectors once a year for rust staining or loosening
Re-seal or oil wood decking on the schedule your material calls for — don't wait until it's visibly gray or dry
Scrub or treat shaded, moss-prone areas before they get slick, especially before winter
Look under the deck once a year at the ledger connection and footings for signs of water intrusion or movement

If you're weighing a new custom deck for your home in Aldergrove or anywhere nearby, we're happy to walk your property, talk through material and layout options, and give you a straightforward, no-pressure estimate — just fill out the form below to get started.