What's the real difference between a new-construction and a replacement window installer?

New-construction installers work with an open rough opening and full access to framing and the weather barrier, building the water management system from scratch. Replacement installers work within an existing finished wall and can't touch the underlying flashing layers. The two jobs use different techniques, and a crew that mainly does replacements may not have current experience sequencing a new-construction install correctly.

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

Ask how they sequence the sill pan, flashing, and weather barrier, and ask them to walk you through it step by step rather than just naming products. Ask how they handle fastener and hardware corrosion resistance for a marine site, and ask for a realistic timeline that accounts for ferry delivery. A contractor who can answer specifically, rather than generally, has likely done this exact job before.

Do I have to use a specific window brand, or can I choose my own?

We work with several manufacturers rather than pushing one brand, since the right choice depends on your budget, the frame material you want, and how exposed the opening is. What matters more than the brand name is the frame material and how the window is installed. We'll give you our honest recommendation and explain why, but the final call is yours.

What frame material actually holds up best on the water side of Orcas Island?

For openings facing open water or heavy wind-driven rain, we generally recommend vinyl or fiberglass because neither corrodes or needs refinishing in salt air. Aluminum-clad wood and bare wood are still viable, especially on sheltered elevations, but they carry more upkeep in this climate. We'll go over the trade-offs for your specific site rather than default to one answer.

Does San Juan County's permitting or the ferry schedule actually change how a window project runs here?

Yes — San Juan County inspections and the ferry-dependent delivery of materials both affect scheduling in ways that mainland projects don't deal with. We build both into the estimate and timeline up front, including lead time for reorders if plans change mid-build. A crew already working on Orcas Island has this baked into how they plan every job, which avoids the delays an off-island contractor often runs into.

New-Construction Windows for Obstruction Pass Homes

Why New-Construction Windows Are Different on Obstruction Pass

Obstruction Pass sits on the water side of Orcas Island, and that location shapes everything about how a window should be installed here. A new-construction window isn't just dropped into a finished wall — it's installed into an open rough opening before siding, trim, and sometimes even the weather barrier are fully in place. That means the crew putting it in is also responsible for how water, air, and moisture move around that opening for the next 30-plus years. Get it right during framing and you never think about it again. Get it wrong and the first sign of trouble is usually a stain on interior drywall two or three winters later, long after the crew is gone.

The Obstruction Pass Setting

Homes close to the water at Obstruction Pass take a different beating than homes tucked into the island's interior. Wind-driven rain off the water hits windows at an angle, not straight down, which pushes water into gaps that a face-sealed or poorly flashed window would never notice inland. Salt in the air off the pass accelerates corrosion on anything metal — fasteners, hardware, weep systems — faster than most manufacturers' standard warranties assume. And wooded, shaded lots common around the pass hold moisture and grow moss on siding, trim, and window sills for much of the year. New-construction windows here need to be installed with all three of those realities in mind from day one, not corrected for later.

What "New-Construction" Windows Actually Means

New-construction windows have a nailing flange (or fin) around the perimeter of the frame that gets fastened directly to the wall sheathing and integrated with the weather-resistive barrier (WRB) before siding goes on. This is different from a replacement or retrofit window, which is fitted into an existing finished opening without access to the framing. New-construction installation gives us full control over the water management layers — sill pan, flashing tape, WRB laps, and sealant joints — which is exactly the control you want on a site exposed to driving rain off the pass. It's also less forgiving of shortcuts, because every layer is meant to be built in a specific order, and skipping or reversing a step defeats the whole system even if the window itself looks fine from outside.

What Local Homes Need From a Window Installation

San Juan County building code sets the baseline, but code minimums don't account for site-specific exposure the way an experienced local crew does. On a property near Obstruction Pass, we're building in margin beyond the minimum in three areas:

Water management: Sill pans and flashing sized and lapped for wind-driven rain, not just vertical rainfall
Corrosion resistance: Fasteners, hardware, and flashing metals chosen to hold up to salt-laden air rather than rust or pit within a few seasons
Drainage and airflow: Sill and trim details that keep moss, needles, and debris from damming water against the frame during the wet months

None of this shows up in a spec sheet — it comes from having installed windows on this island long enough to see what actually fails and why.

Getting the Water Management Right

Sill Pan and Flashing Sequencing

Every new-construction window we install gets a sloped sill pan under the rough opening before the window ever goes in. The pan gives any water that gets past the window a way out, instead of a place to sit against the framing. Flashing at the jambs and head is layered in shingle fashion — each piece overlapping the one below it — so water is always directed outward and downward, never trapped behind a lap that runs the wrong way. This sequencing matters more here than in a drier inland climate, because Obstruction Pass homes see more total hours of wind-driven rain pressure against the wall each year.

Housewrap and Sealant Integration

The WRB has to be cut, folded, and taped into the opening in the correct order relative to the sill pan and flashing — not just wrapped around the window afterward. We use sealants and flashing tapes rated for the temperature swings and near-constant dampness of the marine climate here, since some general-purpose products lose adhesion in prolonged wet, cool conditions. A window that looks properly sealed on installation day but was assembled out of sequence can still leak; the order of operations is what actually keeps water out.

A correct new-construction window installation, at minimum, includes:

Rough opening checked for square, level, and correct size before the window arrives
Sloped sill pan flashing installed and tested for drainage
WRB integrated with the flashing in proper shingle-lap order
Window set, shimmed plumb and square, and fastened per the manufacturer's schedule
Corrosion-resistant fasteners appropriate for a marine environment
Head flashing installed last, lapping over the WRB above the opening
Backer rod and exterior-grade sealant at the trim joint, not sealant alone
Interior gap insulated and air-sealed without over-packing, which can bow the frame
Sill and trim detail that lets water and debris drain rather than collect

Choosing a Frame Material for a Marine Climate

Frame material matters more on the water side of Orcas Island than it does further inland. Salt air and near-constant moisture reward materials that don't corrode or need frequent refinishing, and penalize ones that do. We'll walk through the trade-offs honestly rather than push whatever's easiest to install.

Frame Material	Salt Air / Moisture Behavior	Maintenance	Best Fit
Vinyl	Doesn't corrode; performs consistently in salt air	Low — occasional cleaning	Budget-conscious builds, secondary structures
Fiberglass	Very stable in moisture and temperature swings; no corrosion	Low	Homes wanting long-term durability without upkeep
Aluminum-clad wood	Good exterior protection, but cladding seams and hardware need attention near salt air	Moderate — exterior low, interior wood needs periodic care	Homes prioritizing a wood interior look with exterior durability
Bare wood	Most vulnerable to moss, rot, and moisture in this climate without diligent upkeep	High — regular refinishing required	Interior-facing or sheltered openings only, by owner preference

Our standard recommendation for anything facing open water or heavy wind-driven rain at Obstruction Pass is vinyl or fiberglass, specifically because they don't give salt air or moss season anything to work on. That's a maintenance-and-durability call, not a knock on wood or clad-wood windows — they're a legitimate choice for a sheltered elevation or an owner who wants that look and is willing to keep up with it. We'll lay out the real trade-offs for your specific site rather than default to one answer for every opening.

How We Coordinate With Your Build

Timing With Framing and Siding

New-construction windows have to go in at a specific point in the build sequence — after the WRB is on but before siding closes in around the openings. We work directly with your general contractor or builder to hit that window in the schedule, since installing too early or too late creates rework for every trade that follows, including us when it comes time to tie in siding.

Working Around Ferry Logistics

Windows and specialty flashing materials for an Orcas Island build have to come over on the ferry, and lead times need to account for that — both for the initial order and for anything that needs to be reordered if a measurement or a design detail changes. We build ferry scheduling into our project timeline from the estimate stage, not as an afterthought once materials are already late.

Our Process, Start to Finish

On-site visit to review the rough openings, plans, and site exposure (water side, tree cover, prevailing wind and rain direction)
Frame material and product recommendation based on that specific site, with honest trade-offs explained
Order placed with ferry lead times built into the schedule
Installation coordinated with your builder's framing and WRB timeline
Sill pan, flashing, and sealant work done in the correct sequence, documented as we go
Final check of every opening for plumb, square, operation, and drainage before siding closes in around it

We don't consider the job finished until we've confirmed each window drains and seals the way it's supposed to — not just that it looks good and opens smoothly.

Why a Crew That Already Works Obstruction Pass Matters

A contractor who hasn't worked this part of Orcas Island before is learning the site conditions on your project — how the wind comes off the water at this particular exposure, how much shade and moss pressure a given lot actually sees, what San Juan County inspectors expect to see on a water management detail. A crew that already works Obstruction Pass regularly has already made those adjustments on other builds nearby. That translates into fewer surprises, fewer change orders once framing is open, and installation details that are set correctly the first time instead of corrected after a wet-season callback. It also means realistic scheduling — we're not estimating ferry and travel time from scratch, because it's already part of how we run every project on this island.

If you're planning new construction or an addition near Obstruction Pass, we're glad to walk the site, look at your plans, and put together a straightforward, no-pressure estimate — use the form below to get started.