
Shoreline Window Pros: Window, Door and Glass Replacement
Expert residential and commercial window services across north King County. Free written quotes with the flashing detail spelled out.
- Registered Washington specialty contractor
- Bonded and insured under RCW 18.27
- Free written scope before pricing
- Drainage detail on every quote
Our Window Services in Shoreline, WA

Energy-Efficient Windows
Ratings are the easy half of this job. Shoreline sits in the marine climate band, where the number printed on a sticker matters less than whether the opening beneath the window still moves water.

Vinyl Replacement Windows
Vinyl is the right default in this town, and we say so plainly rather than steering you up a price ladder. A welded multi-chamber frame suits a mild marine climate.

Fiberglass Window Systems
Fiberglass costs meaningfully more than vinyl and is worth it on a minority of openings. We would rather help you find that minority than quote a whole house in it.

Clad Wood Windows
Aluminum-clad wood gives you a painted or stained wood interior with a weather-resistant skin outside. It is the best-looking product we fit and the least forgiving of a wet wall.

Thermally Broken Aluminum Windows
Most Shoreline houses already have aluminum windows, and most of them should not be replaced with more aluminum. That is the shortest honest summary of this page.

Double-Hung Windows
The double-hung is not native to this housing stock, and knowing that changes the conversation. Shoreline's postwar plats were built with wood casements, awnings and fixed picture units, then re-fitted in the 1980s with horizontal sliders.

Casement and Awning Windows
The crank-out casement and the top-hinged awning are the native window types of this housing stock, and they are still the technically better choice on most Shoreline elevations. That is not nostalgia.

Horizontal Sliding Windows
Horizontal sliders are the most common replacement window in Shoreline and the one we inspect hardest. They are simple, cheap to make, easy to operate from a countertop, and they carry a design feature that a wet climate punishes: the sill is a track, and a track is a trough.

Bay and Bow Windows
A bay or bow that already exists can be rebuilt well. Adding one to a face-sealed postwar wall is a different proposition: it creates a roof, two return walls and a projecting floor where none existed, and each is a new way in for water.

Picture and Architectural Windows
Nothing performs better than fixed glass: no hardware, no moving seal, and the lowest air-leakage figure printed on any label. The trade is that it never opens, and in a house built before any ventilation requirement that trade has consequences.

Basement and Bedroom Egress Windows
Shoreline is a daylight-basement town. The lots slope, the postwar builders took advantage of it, and the result is thousands of lower levels that are half above grade and half below.

Impact and Security Glazing
We sell laminated glass, and the hurricane framing around this product does not apply in Shoreline. Washington has no wind-borne debris region here and no missile-impact requirement in our code.

Patio and Sliding Glass Doors
A sliding patio door is the largest hole in your wall, and it sits where water is most likely to collect. On a Shoreline house that means a door onto a deck off a face-sealed wall, which is the detail we spend most time on.

French and Hinged Patio Doors
A pair of hinged glass doors is the most attractive way out of a house and the hardest to weatherproof. Two leaves meeting with no fixed frame between them make a joint that has to seal against driven rain using a moving part.

Entry Doors and Sidelites
The front door of a Shoreline rambler is usually set into a shallow covered stoop, which is the least protected door position and the one where we find the most rot. Before any of the material conversation, we look at what is above the door and how the landing drains.

Window Screens and Rescreening
Screens are the cheapest thing we do and the item most often replaced when it should have been repaired. A bent aluminum frame can be straightened, torn mesh can be re-splined, and corner keys cost pennies.

Glass Repair and Sealed Unit Replacement
A fogged pane is not a failed window. It is a failed edge seal in one sealed glass unit, and on most frames built since about 1990 the unit lifts out and a replacement drops in without siding, trim or wall being touched.

Commercial Storefront and Curtain Wall Glass
Commercial work here runs up the highway corridor and clusters around North City, Ridgecrest and the newer blocks near the light rail stations. The stock is mostly 1950s and 1960s masonry retail with aluminum frontage.
Shoreline Window Pros fits replacement windows, patio doors and entry doors right across this city, from the Richmond Beach bluff to the Ballinger edge of town. We install vinyl, fiberglass, aluminum-clad wood and thermally broken aluminum units, and we swap failed insulated glass on frames that are still worth keeping.
Most of this town went up between 1940 and 1969, and those walls were built face-sealed: lapped cedar or panel siding nailed straight to the sheathing with no drainage cavity behind it. That is still legal here. It also means the window opening is doing water management on its own, so the pan, the back dam and the head flashing are the product, not an accessory to it.
So our quotes read differently. You get the frame material, the NFRC numbers, the install type, and a written description of how water that gets past the cladding is going to leave the wall again. Then you decide. Where a repair is the better buy, or where a full replacement would simply be a waste of money, you hear about it from us before any deposit is taken rather than afterwards.
What Shoreline Customers Say
They pulled one board off the back of the house before quoting and showed me the drip cap had rusted through above the kitchen window. Nobody else who came out looked. The quote came in mid-range and the trim lines are dead straight.
I asked for triple glazing and got talked down to a good double unit plus fixing the bathroom fan. Saved about four thousand dollars. The condensation problem I had been chasing for two winters is gone, which was the actual point.
Two fogged panes in a 1998 vinyl frame. They swapped the sealed units in one morning for a fraction of what two replacement windows would have cost, and told me the rest of the frames had years left in them.
Full-frame job on eleven openings in a 1956 rambler, every one a different size. They ordered to the measured opening, dried in each one the same day it was opened, and left the NFRC labels in a folder on the counter.
Why Shoreline Chooses Shoreline Window Pros
- ✓We open one representative wall before quoting. Finding rusted drip caps or bare sheathing costs an hour up front and prevents the change order that otherwise lands halfway through the job.
- ✓Every opening gets a pan that slopes outward, dams at its interior edge and turns up at both jambs, in flexible flashing or formed metal. In a wall with no drainage cavity, that pan is the last line of defense and we do not skip it to hit a number.
- ✓Our quotes name the NFRC certified numbers, not marketing terms. Heat loss, solar gain, light transmission and air leakage are all printed on the sticker, and those four figures are what one bid should be compared against another on.
- ✓We stock and fit both flush-fin and full nail-fin units. That choice is made by what the wall can survive, not by which one our supplier is running a promotion on this month.
- ✓Sequencing advice comes free and sometimes costs us the job. If siding, a deck or a roof edge is coming, we will tell you where the window belongs in that order.
- ✓Failed sealed glass units get replaced as glass. We keep an insulated glass supplier relationship precisely so the small repair stays available instead of quietly turning into a whole-house quote.
About Shoreline Window Pros in Shoreline, WA
Shoreline Window Pros works one city and its immediate neighbors, which means our crews see the same four or five wall assemblies over and over: 1940s shiplap, 1950s bevel cedar, 1960s panel siding and the 1980s vinyl that got nailed over the top of all three. Knowing what is behind the trim before we open it is most of what makes a window job go quietly.
We quote residential and commercial work: houses in Richmond Beach, Innis Arden, North City, Ridgecrest, Briarcrest and Parkwood, plus storefront and curtain-wall glass along the Aurora Avenue corridor. Every quote carries the unit line, the glass package, the install method and the drainage detail. We do not run a rotating discount, and we do not price a job from a photograph.
There are jobs we turn down. If your siding is already scheduled, if the failure is a seal rather than a frame, or if what you actually want is a warmer room and the windows are the least of the reason it is cold, hire someone else or hire nobody. Losing the sale costs us less than selling you the same job twice inside four years.
How It Works
- 1
We measure the opening, not the window
Every unit gets checked at three heights and three widths, plus a level read on the sill and a probe at the bottom corners of the trim. Postwar Shoreline openings drift out of square by a half inch as often as not, and that drift decides whether a pocket unit or a full-frame unit is honest here.
- 2
We look behind one piece of siding
With your permission we pull a single course of siding or a trim leg at one representative opening. That tells us whether there is building paper, a housewrap, a rusted drip cap or nothing at all. One hour of looking beats a whole job of guessing at what the wall is hiding.
- 3
You get a scope in writing before pricing
The scope names the unit line, the glass package, the install method, the pan material and where the water exits. Options are priced separately so you can drop one without renegotiating the rest. Nothing in it depends on a decision you have to make while somebody is standing in your kitchen.
- 4
We install, flash, and hand you the labels
Openings are prepped and dried in the same day they are opened. You keep the NFRC stickers, the pan detail photos and the manufacturer paperwork in one folder. If a unit shows up bowed or with a scratched lite, it goes back on the truck rather than into your wall.

Storefront and commercial glass along Aurora Avenue
Shoreline's commercial stock runs up State Route 99 in a strip of 1950s and 1960s masonry retail, with newer mixed-use blocks filling in around the light rail stations.
Masonry changes the rules: the residential code does not require a weather-resistant envelope over concrete or masonry walls that are properly flashed, and a storefront system drains internally through its own gutter and weep path. So the questions become sealant joints, thermal breaks, anchor spacing and safety glazing, not housewrap.
We handle tenant improvements, single-lite emergency board-up and replacement, and full frontage rebuilds.
- ✓Aluminum storefront framing repaired or replaced, including thermally broken systems where the tenant is paying to heat the space.
- ✓Safety glazing, tempered or laminated, for doors, sidelites and every lite the code places in a hazardous location.
- ✓Emergency board-up the same day, with the glass measured and ordered before we leave the site.
- ✓Sealed unit replacement in existing storefront pockets, which keeps the frontage intact and the tenant open for business.
- ✓Automatic and manual entrance doors, closers, pivots, thresholds and panic hardware serviced as part of the glass scope.
- ✓Sealant joint renewal at masonry perimeters, with the old joint cut out rather than skinned over with fresh caulk.
- ✓Spandrel and back-painted glass matched to existing panels so a partial replacement does not read as a patch.
- ✓Wind-driven rain performance backed by a tested assembly rather than a promise, where the wall detail warrants it.
Service Areas
Shoreline Window Pros serves Shoreline, WA and surrounding communities including:
Recent Projects Across north King County




Frequently Asked Questions
Do I need a permit to replace windows in Shoreline?
A like-for-like replacement in an existing opening generally does not, but cutting a new opening, widening one, or altering a header does, and that permit comes from the City of Shoreline. Worth knowing: the city only incorporated in 1995, so the original permit card for a 1953 house sits in King County's records, not the city's. If you need to prove what was approved, that is where to start looking.
Is a Washington window contractor licensed by the state?
No. Washington registers contractors under RCW 18.27 instead of licensing them, and there is no separate state glazing trade license. A specialty contractor registration requires a $15,000 bond, raised from $12,000 on July 1, 2024, and liability cover of at least $50,000 for property damage and $100,000 per person under RCW 18.27.050. Ask for the registration number and check it against the L&I lookup before anybody starts.
Should I do windows before or after new siding?
After, almost always. A re-side is when the water-resistive barrier gets replaced and the window can be integrated into a plane that actually drains. Doing windows first means paying a crew to flash into paper that comes off eighteen months later, then paying again to re-flash into the new one. If siding is anywhere on your five-year list, tell us and we will price a repair to hold you over.
Why is nothing in my 1950s house a standard window size?
Because the openings were framed around the sash rather than the other way around. Shoreline's postwar plats went up before catalog sizing settled, so we routinely find rough openings an inch or two off any stock dimension, and often out of square on top of it. Every unit gets ordered to the measured opening. It is slower at the ordering stage, and it is why the trim lines up when we finish.
Is triple glazing worth it here?
Rarely, and we will usually argue you out of it. Shoreline's marine climate is mild and gray rather than brutally cold, so the gap between a good double-glazed unit and a triple runs to a few dollars a month on a heating bill while adding real weight, cost and lead time. The exceptions are a bedroom facing the interstate and a room where condensation has already stained the drywall.
My glass is fogged. Does the whole window have to go?
Usually not. A fogged pane is a failed edge seal in the sealed glass unit, and on most frames made after about 1990 the glass comes out and a new unit goes back in without touching the wall, the siding or the trim. It costs a fraction of a replacement. We only recommend replacing the whole window when the frame itself is racked, rotted or welded shut by corrosion.