What's actually different about installing windows in new construction versus a remodel?

New-construction windows go into a bare rough opening before the weather-resistive barrier and siding are finished, so the install is as much about flashing and drainage sequencing as it is about the window itself. A remodel or replacement window goes into an opening that already has siding and trim around it, so the work is more contained to the window unit. Getting the flashing order wrong in new construction gets buried behind siding for decades, which is why the sequence matters so much on a new build.

What should I ask a contractor before they install windows on my March Point build?

Ask them to walk you through their flashing sequence specifically — sill pan, jamb lap, head lap order — and how they handle fastener and hardware selection for coastal exposure. Ask whether they coordinate directly with your GC's framing schedule and whether they'll walk the install with you before siding closes it in. A contractor who can answer these in plain, specific terms without hedging is usually one who does this work regularly rather than occasionally.

Do you install a specific window brand for new construction?

We work with several manufacturers rather than pushing one brand, because the right frame material and glass package depend on the wall's exposure, the budget, and what the builder's plans call for. What matters more than brand name is verifying reinforced corners, proper hardware grade, and a manufacturer-specified fastening schedule for the nailing flange. We're happy to go through specific product options once we know your plans and site exposure.

What is a nailing flange window and why does it matter here?

A nailing flange, or nailing fin, is the flat lip around a new-construction window frame that gets fastened directly to the wall sheathing and then integrated into the weather-resistive barrier and flashing. It's what makes new-construction windows different from replacement units, which typically don't have this flange since they install into an already-finished wall. Fastening it correctly, with the right pattern and corrosion-resistant fasteners, is often a manufacturer warranty requirement, not just a best practice.

Does March Point's waterfront exposure actually change how windows should be installed?

Yes — proximity to Fidalgo and Padilla Bay means more airborne salt reaching hardware and fasteners, plus wind-driven rain that hits walls harder than a sheltered inland lot would see. That pushes us toward corrosion-resistant fasteners, careful frame material selection, and extra attention to sill pan flashing so wind-driven rain that gets past the window still has somewhere to drain. It's the same core install method used across Skagit County, just with less margin for error on the details.

New-Construction Windows in March Point, Anacortes

Building New in March Point Means Building for the Water

March Point sits right up against Fidalgo Bay and Padilla Bay, which means homes going up out here take a different kind of weather than a house a few miles inland in Anacortes. Salt-laden air off the water, wind-driven rain that comes at the wall sideways instead of straight down, and a moss season that runs most of the year all put stress on a building envelope before it's even lived in. New-construction windows are your first and best chance to get the water management right, because once the siding and trim go on, you're not getting a second shot without tearing things back open.

This page is specifically about installing windows during new construction in March Point — not replacing old windows in an existing wall. The two jobs share a product category but almost nothing else in terms of technique, sequencing, and what's actually protecting the house long-term.

Why New-Construction Install Is a Different Job Than Replacement

A replacement window gets set into an opening that's already got siding, trim, and old flashing around it — the work is largely about the window itself. A new-construction window gets installed into a bare rough opening, before the weather-resistive barrier (WRB) and siding are finished. That means the window install is really a flashing and drainage plane job with a window in the middle of it. Get the layering wrong here and every rainstorm for the next 30 years sends water somewhere it shouldn't go.

New-construction windows typically use a nailing flange (also called a nailing fin) around the frame that gets fastened directly to the sheathing, then integrated into the WRB and flashing system in a specific shingle-lap order. Skip a step, tape the wrong lap direction, or forget the sill pan, and the mistake gets buried behind siding — invisible until there's a stain on drywall or rot in the framing years down the road.

What Correct Sequencing Looks Like

Sill pan flashing installed first, sloped or with end dams so any water that gets past the window has somewhere to go besides the framing
Window set, leveled, and shimmed so the frame isn't racked (a racked frame binds hardware and stresses seals early)
Nailing flange fastened per the manufacturer's pattern — skipping fasteners voids warranty coverage on wind load in a lot of cases
Jamb flashing lapped over the sill pan, head flashing lapped over the jamb flashing and over the WRB above it — always shingle-style, water always moving down and out
Backer rod and sealant at the interior and exterior perimeter, sized correctly rather than just caulked over gaps
WRB integration completed before siding goes on, with no exposed fastener heads or unsealed penetrations left in the drainage plane

What March Point's Climate Actually Demands

Three things define the exposure out here, and each one changes a decision on the job:

Salt Air and Corrosion

Proximity to the bay means airborne salt reaches hardware, fasteners, and frame components faster than it would a few miles inland. Standard steel fasteners and lower-grade hardware corrode faster in this environment. We spec corrosion-resistant fasteners and hardware for anything in a March Point install, and we're selective about frame materials for the same reason — more on that below.

Driving Rain

Wind off the water pushes rain sideways into wall assemblies, which is exactly the condition that exposes a weak flashing lap or a missed sealant joint. A window that would perform fine in a sheltered inland lot can leak in a March Point exposure if the drainage detailing isn't tight. This is why sill pan flashing isn't optional out here — it's the backstop when wind-driven rain gets past the window itself.

Moss and Sustained Moisture

Skagit County's long wet season keeps surfaces damp for extended stretches, which is what drives moss growth on roofs and siding — and it also means any window detail that traps moisture instead of shedding it stays wet longer than it would in a drier climate. Sill pans, weep paths, and sealant joints all need to actually drain, not just look sealed.

Choosing Frame Materials for a Coastal New Build

Frame material matters more in a March Point install than it would inland, because the exposure amplifies weaknesses in lower-grade products. Here's how the common options stack up for this specific environment:

Frame Material	Salt Air / Moisture Behavior	Maintenance	Typical Fit
Vinyl	Good corrosion resistance since there's no exposed metal frame; quality varies widely by manufacturer	Low — no painting, occasional cleaning	Most new-construction budgets; verify reinforced corners and hardware grade
Fiberglass	Excellent — dimensionally stable, doesn't corrode, holds up well to salt exposure	Low	Higher-exposure walls facing the bay or prevailing wind
Aluminum-clad wood	Good exterior protection but relies on unbroken cladding and sealed joints; wood core still needs the water managed	Moderate — exterior low-maintenance, interior wood may need attention over time	Homeowners wanting a wood interior look with exterior protection
Bare aluminum	Prone to corrosion and pitting in salt air without a protective finish	Higher — finish needs monitoring	We generally steer new-construction clients away from unclad aluminum this close to the water

None of these are wrong choices in every case — it depends on budget, wall exposure, and the look the homeowner or builder wants. What matters is making the choice with the actual exposure in mind rather than defaulting to whatever's cheapest on the plan set.

How We Work on a March Point New-Construction Job

Most of our new-construction work comes through a general contractor or builder, and coordinating cleanly with that schedule is half the job. Here's the sequence we follow:

Plan review and product selection — we look at the window schedule, elevations, and wall exposure to confirm frame material and glass package fit the site, especially on walls facing the bay or prevailing weather
Site coordination — we work off the GC's framing schedule so windows go in at the right point in the sequence, not rushed ahead of a dry-in deadline or delayed past it
Rough opening check — verifying openings are square, plumb, and sized correctly before a single flashing piece goes up; catching a framing error here is far cheaper than after siding
Flashing and install — sill pan, window set and shimmed, flange fastened, jamb and head flashing lapped correctly, all tied into the WRB
Interior and exterior sealant — proper backer rod sizing and sealant at both faces of the frame
Documentation and walkthrough — we go over the install with the builder or homeowner before siding closes it in, since this is the last point anyone can visually confirm the flashing

Checklist: What a Homeowner or Builder Should Confirm Before Siding Goes On

Sill pan flashing is present under every window, not just the ones facing the water
Flashing laps run shingle-style — head over jamb, jamb over sill pan, never reversed
All nailing flange fasteners are installed per the manufacturer's schedule, not just a few per side
WRB is lapped over the top flashing with no exposed fastener heads left in the field
Hardware and fasteners are rated for coastal/corrosive exposure, not standard interior-grade
Sealant joints are tooled and continuous, not just dabbed at the corners

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

Flashing details that work fine in a sheltered inland subdivision aren't automatically enough for a lot exposed to Fidalgo or Padilla Bay wind. A crew that's done this work around March Point knows which elevations take the worst of the driving rain, which fastener and hardware grades hold up instead of corroding early, and how local building department inspectors expect flashing documented and sequenced. That local track record also means fewer surprises for the GC — we know how to slot into a framing schedule without becoming the reason dry-in gets delayed.

New-construction windows are largely invisible once the house is finished — the visible part is the trim and the glass, but the part that actually protects the home for the next several decades is buried behind the siding. That's exactly why it's worth getting it right the first time, with a crew that treats the flashing sequence as seriously as the window itself.

If you're building in March Point and want a straight answer on window selection or install approach for your specific lot and exposure, we're glad to walk the plans with you. Reach out for a free, no-pressure estimate — there's a form right below this page.