What's actually different between new-construction and replacement windows?

New-construction windows install into a bare, framed opening before the siding goes on, so the window becomes part of the wall's water-management system — flashing, weather-resistive barrier, and siding all layer together around it. Replacement windows go into an existing, already-clad opening with less of that assembly exposed. New construction gives you the chance to get the water management right from the start rather than working around what's already there.

How do I vet a contractor for a new-construction window job instead of just picking the cheapest bid?

Ask specifically about their flashing sequence, whether they use a sloped sill pan with back and end dams, and how they coordinate timing with your framer or siding crew. A contractor who can walk you through those details without hesitating has actually done the work before; one who talks only about the window brand usually hasn't thought past the product itself.

Do you install a specific window brand, or can homeowners choose their own?

We work with several manufacturers rather than pushing one brand, and we'll walk you through which lines hold up best for coastal exposure. If you or your builder already have a product preference, we're glad to install it as long as it's rated for the exposure your specific opening will see.

Is vinyl, fiberglass, or aluminum the better choice for a house exposed to salt air?

Fiberglass tends to hold up best under sustained salt-air and temperature-swing exposure because it doesn't expand and contract the way vinyl does, though it costs more upfront. Vinyl is a solid mid-range choice as long as it's a coastal-rated formulation, and standard aluminum needs a marine-grade finish and thermal break to avoid corrosion and condensation issues over time.

Does Point Roberts being an exclave actually affect a window installation timeline?

Yes — the only road access to Point Roberts runs through Canada with two border crossings each way, which affects how materials and crews get scheduled onto a jobsite. Contractors who haven't worked the peninsula before often don't plan around that, which can cost a build days of delay; we build it into our scheduling from the start.

New-Construction Windows in Point Roberts, WA

Building New in Point Roberts Means Building for the Water Around You

Point Roberts sits out on its own peninsula, with saltwater on three sides and weather that comes straight off open water with nothing to slow it down. If you're framing a new home or outbuilding out there, the windows aren't just a finish item picked from a catalog — they're one of the first weatherproofing decisions that gets locked into the wall assembly before the siding ever goes on. Get that stage right and the house stays dry for decades. Get it wrong and the mistake is buried behind trim, waiting.

Whatcom County's marine climate means salt-laden air, driving rain that hits window walls at an angle instead of falling straight down, and a damp season that runs long enough to grow moss on anything that stays wet. New-construction windows in Point Roberts have to handle all three at once — corrosion resistance, water-shedding at the rough opening, and materials that don't hold moisture against the building.

New Construction Is Not the Same Job as a Window Replacement

A lot of homeowners assume "installing windows" is the same task whether it's a remodel or a new build. It isn't. Replacement windows go into an existing, already-clad opening — the installer is working with what's there. New-construction windows go into a bare, framed opening before the weather-resistive barrier (WRB) and siding are complete, which means the window itself becomes part of the wall's water-management system rather than something added to it later.

That's actually the advantage of building new: you get to build the drainage plane correctly from the outside in, instead of trying to retrofit it around an existing wall. The window flange, the flashing tape, the WRB, and the siding all have to be layered in the right order — each one lapping over the layer below it — so that any water that gets past the glass and frame drains back out instead of working its way into the wall cavity. On a site exposed to wind-driven rain like Point Roberts, that sequencing isn't optional detail work. It's the difference between a window that performs for 30 years and one that starts showing staining or soft trim within a decade.

Choosing a Frame Material That Can Handle Salt Air

Frame material matters more here than it does further inland. Salt air accelerates corrosion on unprotected metal, degrades lower-grade finishes faster, and puts more stress on seals and weatherstripping over time. We walk every new-construction client through the real trade-offs rather than pushing one product line.

Vinyl

Vinyl is the most common choice for good reason — it doesn't rust, it's low-maintenance, and it's the most budget-friendly option for a full new-construction window package. The trade-off is that not all vinyl is built the same; frame quality, corner-weld strength, and UV/salt-resistant formulations vary a lot between manufacturers. We only install lines that are rated for coastal exposure, not the lowest-grade product on the shelf.

Fiberglass

Fiberglass frames are dimensionally stable — they don't expand and contract with temperature swings the way vinyl can, which keeps seals tighter over the long run. It costs more up front, but for a home that's going to take direct salt air and rain for its whole life, that stability is worth real money in reduced callback and re-caulk work down the line.

Aluminum

Standard aluminum frames are a tougher sell for this specific site. Bare aluminum is prone to pitting and corrosion in a salt-air environment unless it has a marine-grade anodized or powder-coat finish and a proper thermal break, and even then it conducts cold more than vinyl or fiberglass, which can lead to interior condensation in our wet winters. We'll still install it when a client wants the narrow sightlines aluminum offers, but we spec the coastal-rated version and set expectations on maintenance up front — it's a professional standard we hold to, not a knock on the product itself.

Wood and Clad-Wood

Wood frames look great and perform well when they're well-maintained, but bare wood in a wet marine climate needs more upkeep than most new-construction budgets plan for. Clad options — an aluminum or fiberglass exterior skin over a wood interior — give you the interior warmth of wood with a weather-resistant exterior shell, as long as the cladding seams and sealant joints are maintained.

The Installation Details That Actually Stop Water — Not Just the Window Itself

The window unit itself is only part of the system. Most leaks we get called out to fix in coastal new builds don't come from a bad window — they come from a rough opening that wasn't flashed correctly before the window ever went in. For every new-construction opening, our install includes:

A sloped sill pan with back and end dams, so any water that reaches the sill drains outward instead of pooling against the framing
Self-adhered flashing tape applied in the correct shingle-lap order — sill first, then jambs, then head — so each layer sheds onto the one below it
Proper integration with the weather-resistive barrier, lapping the WRB over the head flashing rather than tucking it behind, so water is directed out of the wall, not into it
Shimming and fastening to keep the unit square, level, and plumb — a racked frame stresses seals and sash operation from day one
Low-expansion foam or backer rod and sealant at the perimeter for air sealing, without over-filling the space and bowing the frame
A head flashing or drip cap that extends beyond the trim width, so wind-driven rain can't ride sideways behind the casing

None of these steps are visible once the siding goes on. That's exactly why they matter — they're the parts of the job nobody checks unless something goes wrong years later.

Designing Around Moss, Algae, and a Long Wet Season

Moss and algae growth in Whatcom County isn't really a window problem on its own — it's a whole-building moisture problem that shows up wherever surfaces stay damp and shaded. But window details play a real role in whether trim and sills stay dry or become one more surface holding moisture against the house. A few things we build into every new-construction window package out here:

Sills and sill trim are set with a slight outward pitch so water sheds off rather than sitting flat. We avoid horizontal trim ledges wide enough to collect standing water and organic debris, since that's exactly where moss and algae get a foothold. Exterior caulking is chosen for flexibility in cold, damp conditions rather than a product that hardens and cracks after one wet winter. And where trim material is involved, we favor options that don't absorb moisture the way untreated wood does, so the window surround isn't feeding the same growth problem you'll eventually be pressure-washing off the roof.

How We Handle New-Construction Window Jobs in Point Roberts

Plan review during framing. We look at the build plans and, ideally, the framed openings themselves before ordering anything — window sizing, orientation to prevailing wind and rain, and which elevations take the most direct weather exposure all factor into product selection.
Product selection by exposure, not by wall. A window on the water-facing side of a Point Roberts build takes a different beating than one tucked on a sheltered elevation. We spec frame material and glazing package accordingly instead of using one spec for the whole house.
Coordinated scheduling. Windows go in after the house is dried in but before siding closes up the wall, so timing has to line up with your framer and siding crew. We coordinate directly with your builder or general contractor to hit that window.
Opening-by-opening quality control. Every rough opening gets flashed and checked before the unit goes in — not just installed and moved past. This is the step that gets skipped when a crew is trying to move fast.
Final walkthrough and documentation. You get a walkthrough of what was installed, how it was flashed, and the manufacturer warranty paperwork for your records.

Cost Factors to Weigh for a New-Construction Window Package

Every new build is different, but these are the main variables that move the price and performance of a new-construction window package on a coastal Whatcom County site:

Factor	Lower Cost, More Upkeep	Higher Cost, Less Upkeep
Frame material	Standard-grade vinyl	Fiberglass or marine-rated aluminum
Glazing package	Standard double-pane	Upgraded low-E, argon-filled double or triple-pane
Flashing detail	Basic tape-and-caulk	Full sill pan with back dam, sequenced flashing
Sill/trim design	Flat horizontal trim	Pitched sill with drip edge
Exposure planning	Same spec on every elevation	Upgraded spec on water-facing walls only

There's no single right answer for every budget — plenty of well-built homes mix a standard-grade window on sheltered walls with an upgraded spec on the side that takes the worst of the weather. What matters is that the choice is made deliberately, not by default.

Why It Matters to Hire a Crew That Already Works in Point Roberts

Point Roberts is geographically cut off from the rest of Whatcom County — the only road access runs through Canada, crossing two border checkpoints each way, and materials, equipment, and crews all have to account for that when scheduling a build. A crew that hasn't worked the peninsula before often underestimates how much that logistics reality affects delivery timing and coordination with other trades on site. We've built and installed on Point Roberts enough to plan around it rather than get surprised by it, which keeps your build schedule on track instead of losing days to a missed crossing or a delayed material delivery.

Local familiarity also means knowing which elevations on a given lot actually take the worst of the wind-driven rain, since exposure on a small peninsula can vary a lot from one side of a property to the other. It means understanding that Point Roberts falls under Whatcom County's building jurisdiction, so permitting and inspection expectations are handled the same way they would be for the rest of the county. And it means we're not learning the site's climate behavior on your project — we already know what a marine-exposed rough opening needs before we cut the first piece of flashing tape.

What to Ask Before You Hire for New-Construction Windows

If you're vetting contractors for a new build in Point Roberts, these are worth asking directly:

Do you install a sloped sill pan with back and end dams on every opening, or just caulk and go?
What's your flashing sequence, and how does it integrate with the WRB our framer or siding crew is using?
Which frame materials do you recommend for a water-facing wall versus a sheltered one, and why?
Can you coordinate install timing directly with our builder or GC around the dry-in schedule?
Have you worked on Point Roberts before, and how do you plan around the border-crossing logistics for materials and crew?
What warranty documentation do we receive at the end of the job, and who do we call if an issue shows up later?

A contractor who can answer these clearly, without hedging, is one who's actually done this work on a site like yours before.

If you're planning a new build in Point Roberts and want a straight answer on window selection and installation for your specific site, we're happy to take a look at your plans and walk the openings once they're framed. Reach out for a free, no-pressure estimate — the form below gets you started.