Is deck building part of the roofing trade, or something separate?

They're related but distinct trades that share a lot of the same skills — framing, flashing, weatherproofing, and working with exterior materials. Many exterior contractors, including us, handle both because the underlying knowledge of how water moves and how materials hold up outdoors carries over directly. A crew that understands roof flashing generally understands deck ledger flashing too, since the failure mode is the same.

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

Ask what hardware and fastener grade they use, and why — coastal-rated hardware should be a deliberate choice, not something they haven't thought about. Ask how they handle ledger flashing, whether they pull the required permits, and whether they've built decks in similarly exposed locations before. A contractor who can answer those specifically, rather than generically, is a good sign.

What's the real difference between capped composite and traditional wood decking?

Capped composite has a protective outer layer bonded over a wood-plastic core, which resists staining and moisture absorption better than solid wood. Wood is generally less expensive upfront and has a natural look many homeowners prefer, but it needs more regular cleaning and resealing to perform well in a damp, salt-air environment. Neither is wrong — it comes down to how much maintenance you want to take on.

Do stainless steel fasteners actually make a noticeable difference on a coastal deck?

Yes — standard galvanized fasteners are rated for general outdoor use, not sustained salt air exposure, and they'll typically show corrosion and rust staining well before stainless or coastal-rated hardware does. The cost difference is real but modest relative to the whole project, and it directly affects how long the structural connections last. It's one of the cheapest ways to add years to a deck's life.

How long does a custom deck project usually take, given how much it rains here?

Timelines depend on size and permitting, but weather is a real factor in Whatcom County — framing and decking work slows down or pauses during heavy, sustained rain to protect the work and the crew. We build weather into the schedule rather than rushing through wet conditions, since cutting corners during a downpour is exactly how flashing and fastening mistakes happen.

Custom Decks for Sandy Point Homes: Built for the Coast

Why Sandy Point's Coastal Climate Is Hard on Decks

Sandy Point sits close enough to the water that its homes deal with a different set of conditions than a deck a few miles inland in Ferndale. Salt-laden air moves through year-round, wind-driven rain hits siding and decking at angles that don't give lumber much chance to dry out, and the long, damp Whatcom County winter turns into an extended moss season on anything that stays shaded or holds moisture. None of this makes building a deck out here impossible — it just means the deck has to be built for these specific conditions, not built the same way you'd build one twenty miles inland and hope for the best.

We see the results of decks that weren't built with this environment in mind: corroded fasteners bleeding rust streaks into the boards, soft spots where a ledger board never got proper flashing, and moss creeping into gaps that never had a chance to shed water. Most of these problems trace back to the same root cause — a design or material choice that worked fine somewhere drier and calmer, but wasn't suited to a waterfront lot.

What a Correctly Built Deck Needs Out Here

Ledger Board and Flashing

The ledger board — where the deck attaches to the house — is the single most common failure point on any deck, and salt air and driving rain make the stakes higher. Without proper flashing, water works its way behind the ledger and into the house's band board and framing, and once that starts it's hidden until the damage is significant. A correct installation uses flashing that sheds water away from the house structure, not just a bead of caulk and a hope that it holds.

Fasteners, Connectors, and Hardware

Standard galvanized hardware is built for general outdoor exposure, not for salt air sitting on it day after day. On a Sandy Point deck we spec fasteners and structural connectors rated for coastal or corrosive environments — typically stainless steel or a coating rated well above standard galvanized — and we're deliberate about not mixing incompatible metals, which can cause galvanic corrosion between the fastener and the connector it's driven into. It costs more upfront than hardware-store galvanized screws. It's also the difference between hardware that's still sound in fifteen years and hardware that's staining the decking and losing grip in five.

Choosing a Decking Material for Salt Air and Moss

There's no single "best" decking material for every home — the right choice depends on how much maintenance you want to take on, your budget, and how exposed the deck is to wind, rain, and shade. Here's how the common options actually compare in a coastal, moss-prone environment like this one:

Material	Salt Air & Moisture Behavior	Moss & Mildew Resistance	Maintenance
Pressure-treated wood	Performs well if sealed and maintained; end grain and fasteners are the weak points	Needs regular cleaning and resealing to resist moss and staining	Highest — annual cleaning and periodic resealing
Capped composite	Handles moisture and salt exposure well; the cap resists staining	Won't rot, but moss and algae can still grow on the surface in shaded, damp spots	Low — occasional washing
PVC decking	Fully synthetic, no wood fibers to absorb moisture	Best resistance to moss and mildew of the common options	Lowest — periodic washing

Composite and PVC cost more per square foot than wood upfront, but on a coastal lot where wood needs more frequent attention just to hold its own, a lot of Sandy Point homeowners find the lower maintenance load is worth it over the life of the deck. Others prefer the look and feel of real wood and are willing to keep up with the maintenance — that's a legitimate choice too, as long as it's made with the upkeep in mind going in.

Footings and Framing for Sandy, Exposed Lots

Sandy, low-lying soil close to the water behaves differently than the denser inland soils around Ferndale, and footings need to be sized and set with that in mind. We still dig to the frost depth and bearing requirements the local code calls for, and on lots with looser or sandier soil we don't cut corners on footing diameter or depth just because the ground is easier to dig — a footing that's undersized for the soil it's in will settle unevenly over time.

Wind is the other factor that inland decks don't have to plan around as much. A deck that's exposed to open wind off the water needs solid blocking, properly braced posts, and connections engineered to resist uplift and lateral movement — not just enough structure to hold the deck's own weight.

Designing to Shed Water and Resist Moss

Moss doesn't grow because a material is defective — it grows wherever water sits and light doesn't reach. A deck design can either fight that tendency or make it worse. We build in a slight slope away from the house so water runs off instead of pooling, use proper board spacing so water and debris drain through instead of collecting in the gaps, and keep the structure ventilated underneath so the framing can dry out between rain events instead of staying damp for weeks at a time.

We also pay attention to how close vegetation and structures sit to the deck. A deck tucked into constant shade with poor airflow will grow moss no matter what it's built from — that's a site condition, not a material failure, and it's worth planning for during design rather than fighting after the fact.

Permits, Setbacks, and Local Requirements

Most deck projects in Whatcom County need a permit, and elevated decks in particular get reviewed for guardrail height, stair requirements, and structural connections back to the house. If a property sits close to the water, it may also fall under shoreline-related review, which can affect setbacks and what's allowed close to the water's edge — this varies by parcel, so it's worth checking early rather than after a deck is designed. We handle the permitting process as part of the job, including working through footing inspections, so it's not something the homeowner has to chase down separately.

Our Process for a Sandy Point Deck Build

On-site assessment — we look at sun exposure, wind direction, drainage, soil, and how the deck will tie into the house before we design anything.
Design and material selection — sizing, layout, and material choice based on how the deck will actually be used and how exposed the site is.
Permitting — we prepare and submit what the county requires and schedule the necessary inspections.
Footings and framing — footings sized for the soil and load, framing set with corrosion-resistant hardware and proper ledger flashing from the start.
Decking, fascia, and guardrails — installed to the spacing and fastening details the chosen material actually requires.
Final walkthrough — we go over the finished deck and what it needs from you going forward, if anything.

Why Hiring a Crew That Already Works This Area Matters

A contractor who mostly builds decks inland — away from salt air, wind, and standing moisture — can do solid work and still make choices that don't hold up on a Sandy Point lot: standard galvanized hardware instead of a coastal-rated fastener, a ledger detail that's fine in a drier location but not here, or a footing plan that doesn't account for sandier soil. These aren't dramatic mistakes on day one. They show up two, five, or ten years later as corrosion, soft framing, or a deck that needs work well before it should.

We build and repair decks across this part of Whatcom County, including homes right on the water, so the coastal-rated hardware, the flashing detail, and the footing sizing aren't an upcharge or an afterthought — they're just how we build a deck out here.

Keeping Your New Deck Looking Good Through Moss Season

A well-built deck still needs some basic upkeep to stay in good shape through repeated wet winters. A few habits go a long way:

Clear leaves and debris out of the board gaps before wet weather sets in, so water and moss don't have a place to collect
Wash the deck surface at least once a year to remove early moss and algae growth before it spreads
Check visible fasteners and connectors periodically for rust staining or looseness
Reseal wood decking on the schedule the finish product calls for — don't wait until it's visibly gray and worn
Keep nearby vegetation trimmed back so air can move under and around the deck
Confirm the ledger flashing and the area where the deck meets the house stay sealed and intact

If you're planning a new deck for a Sandy Point home, or want a second opinion on one that's already showing its age, we're happy to take a look and put together a free, no-pressure estimate. There's a form below — reach out and we'll walk the site with you.