Why do older Old Town Anacortes homes so often have out-of-square window openings?

Homes in this neighborhood have had decades to settle, and framing shifts slightly as foundations and lumber move over time. Past repairs or additions weren't always brought back perfectly plumb either. It's normal to find an opening that varies by an inch or more from top to bottom, which is exactly why stock-size windows often don't fit well.

What should I ask a contractor before hiring them for custom window work on an older home?

Ask how they handle out-of-square openings, whether they inspect for hidden framing rot before installing, and what flashing and sill pan details they use. Ask to see how they'd match trim to your home's existing profile rather than just installing a generic casing. A contractor who can answer specifically, instead of generally, has likely done this kind of work before.

Do you install one specific window brand, or can I choose the manufacturer?

We work with a handful of manufacturers rather than locking clients into a single brand, since the right choice depends on the home's exposure, look, and budget. Our recommendation is based on what will hold up on that specific house, not on which product is easiest for us to sell. We'll walk through the honest trade-offs of each option before you decide.

What actually makes a window "custom" instead of a standard replacement?

A custom window is built or fitted to match the exact, often irregular dimensions of an existing opening, rather than assuming a standard factory size. It also means matching sash proportions, grille patterns, and trim details specific to the home instead of installing whatever's closest in the catalog. On older homes, that precision is usually the difference between a window that fits properly and one that gets shimmed and caulked into submission.

Does Anacortes' marine climate really shorten how long windows last compared to homes further inland?

It can, mainly through two paths — salt air corroding hardware and cheaper metal components over time, and sustained wind-driven rain finding weak points in flashing and seals. Windows and hardware chosen and installed with that exposure in mind hold up far better than the same products would inland. It's a big part of why material choice and installation detailing matter more here than in a drier, calmer climate.

Custom Windows for Old Town Anacortes Homes | Anacortes Siding Contractor

Windows in Old Town Anacortes: A Different Job Than a New Build

Old Town Anacortes is one of the older residential pockets on Fidalgo Island, and the housing stock reflects it. A lot of these homes were framed decades before modern window standards existed, which means the openings, the wall assemblies, and the trim details don't match what comes out of a big-box catalog. Installing windows here isn't a matter of ordering a standard size and screwing it into place. It's measuring what's actually there, understanding how the house was built, and fitting the window to the house instead of forcing the house to fit the window.

That's what "custom windows" means on a project like this. It's not a marketing term — it's the only approach that actually works once a house has settled, shifted, and been patched a few times over its life.

What Salt Air, Driving Rain, and Moss Season Do to a Window

Anacortes sits right on the water, and Skagit County's marine climate is part of what makes the area beautiful and part of what makes window work harder here than it would be inland. Three things matter most for a window's long-term performance in this part of Old Town.

Salt Air and Hardware

Salt-laden air moves off the water and settles on everything nearby, including window frames, screens, and hardware. Over years, that exposure corrodes cheap fasteners, pits untreated aluminum, and stiffens up hinges and locks that weren't built for a coastal environment. A window that would last decades in a dry inland climate can start showing hardware failure much sooner here if the materials weren't chosen with salt exposure in mind.

Driving Rain and Wind Exposure

Storms coming off the Salish Sea don't just drop rain straight down — wind pushes it sideways into the building envelope. Older single-pane and early double-pane windows, along with their original flashing details, were rarely designed to handle sustained wind-driven rain. Once water starts working past the sash or around the frame, it doesn't take long to reach the framing behind it, and that's where the real damage happens.

Moss Season and Trapped Moisture

The long, damp stretch of the year that keeps everything green in Skagit County is the same stretch that keeps moss and mildew established on north-facing walls, sills, and shaded trim. Moss holds moisture against wood longer than open air would, and if a sill or casing doesn't shed water and dry out between rains, rot sets in quietly behind paint that still looks fine from the sidewalk.

Why "Custom" Isn't Just a Sales Word for a House Like This

Out-of-Square Openings

Houses in Old Town have had a century or more to settle. Foundations shift a little, framing dries and moves, and additions or repairs over the decades rarely came back perfectly plumb. It's common to find an opening that's an inch or more different from top to bottom, or a jamb that isn't quite square to the sill. A stock window forced into an opening like that gets shimmed unevenly, seals poorly, and often binds when you try to open it. Custom sizing means the window is built — or the opening is properly prepped — to actually match what's there.

Matching the Original Proportions

A lot of the character in an older Old Town home comes from window proportions: narrower sashes, particular grille patterns, trim profiles that were common when the house was built. Swapping in an off-the-shelf window that's close enough in size but wrong in proportion is one of the fastest ways to make a house look remodeled instead of restored. Matching sightlines, sash width, and trim reveal takes more planning up front, but it's the difference between windows that belong on the house and windows that look bolted on.

Choosing Frame Materials for a Marine Climate

There isn't one "best" window material for every house — it depends on exposure, budget, and how much upkeep an owner wants to take on. Here's how the common options generally hold up in a salt-air, high-rain environment like Old Town Anacortes.

Frame Material	Salt Air / Corrosion	Moisture & Rot Resistance	Maintenance	General Cost Tier
Vinyl	Good — won't corrode, but hardware quality varies by manufacturer	Very good, doesn't absorb moisture	Low	Lower to mid
Fiberglass	Very good — dimensionally stable, resists pitting	Very good	Low	Mid to higher
Aluminum-clad wood	Fair to good depending on cladding quality and seams	Good on exterior face; interior wood still needs protection	Moderate	Higher
Solid wood	Poor without diligent upkeep — most exposed to salt corrosion on hardware	Requires consistent maintenance to prevent rot	High	Higher

For most Old Town homes within a few blocks of the water, we steer clients toward vinyl or fiberglass for the exposed elevations, with stainless or marine-grade hardware regardless of frame material. Where the original character of the home calls for a wood look, aluminum-clad or wood-look composite options can hit that target without the same maintenance burden as solid wood — that's a professional trade-off we'll walk through honestly rather than push whatever's easiest to sell.

What a Correct Installation Actually Involves

The window unit itself is only part of the job. Most window failures we get called out to inspect in this area trace back to installation shortcuts, not a bad product. A correct install includes:

Removing the old unit and inspecting the rough opening and sill framing for hidden rot before anything new goes in
Repairing or rebuilding any compromised framing rather than installing over it
Setting a proper sloped sill pan so any water that gets past the sash drains outward, not into the wall
Integrating new flashing with the existing weather-resistive barrier in the correct shingle-lap order, so water sheds down and out
Shimming the unit plumb, level, and square regardless of how far out of square the opening has drifted
Sealing with backer rod and quality exterior sealant at the right joints — not caulk smeared over gaps as a substitute for proper flashing
Confirming weep holes and drainage paths are clear and functional before trim goes back on
Matching or rebuilding exterior casing and trim to the home's existing profile
Testing operation, locking hardware, and weather seal before calling the job finished

Skip any one of these steps and a window can look fine for a year or two while moisture works its way into the wall behind it — which is exactly the kind of slow, hidden damage that Old Town's damp climate is good at hiding.

How We Work in Old Town Anacortes

Because so many homes in this neighborhood have their own quirks, our process starts with a real look at the house, not a phone quote.

On-site assessment of each opening, including a check for soft framing, existing flashing condition, and how the walls have historically handled rain and moss exposure
Honest recommendation on materials and sizing based on that specific home's exposure and the owner's priorities — matching the original look, cutting maintenance, or both
Precise measurement and ordering, accounting for out-of-square conditions rather than assuming standard dimensions
Installation with proper flashing, sill pans, and sealing detailed above
Final walkthrough covering operation, seals, and basic care so the owner knows what to expect from the new windows in this climate

Living With New Windows in a Moss-Prone Climate

New windows reduce a lot of the maintenance burden compared to older single-pane units, but no window is entirely maintenance-free in a place like Anacortes. A few habits go a long way:

Rinse pollen, salt residue, and grime off frames and glass a couple times a year, especially on elevations facing the water
Keep gutters and downspouts clear so runoff isn't sheeting directly down onto window heads
Check caulking and sealant lines annually, particularly after the wetter winter months, and touch up before gaps widen
Trim back shrubs or trees that keep a window shaded and damp longer than the rest of the house
Wipe down and lightly lubricate hardware on operable windows once a year to keep salt air from seizing hinges and locks

Why Hire a Crew That Already Works This Neighborhood

A contractor who mostly works newer construction inland doesn't run into out-of-square Old Town openings, historic trim profiles, or salt-air hardware failure very often — and it shows in how they bid and install a job like this. Working in and around Anacortes and Skagit County regularly means we've seen how these specific houses age, where they tend to leak, and what actually holds up against the driving rain and long wet season this part of the county gets. That familiarity shortens the guesswork and reduces the odds of a callback for a problem that should've been caught during the walkthrough.

If you're weighing custom window replacement for a home in Old Town Anacortes, we're happy to take a look and give you a straightforward, no-pressure estimate — no invented urgency, just an honest read on what your windows and openings actually need.

Custom Windows for Old Town Anacortes Homes