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Bellingham Window Replacement

Every Window Service We Offer in Bellingham, WA

One team for every window job in Bellingham — from energy-efficient windows and air sealing to commercial storefront and taproom glass.

Bellingham Window Replacement handles residential and commercial window projects across Bellingham and Whatcom County and northern Skagit. From energy-efficient windows and air sealing to commercial storefront and taproom glass, every service below is handled by our own team and backed by our workmanship guarantee.

Start on the Bellingham Window Replacement homepage, read what people in Bellingham say on our about page, or call (844) 511-2320 and describe what you need in your own words.

Our Window Services in Bellingham, WA

Energy-Efficient Windows and Air Sealing in Bellingham, WA

Energy-Efficient Windows and Air Sealing

Bellingham runs about 5,559 heating degree days a year, so nearly all the energy your house loses goes out as heat rather than in as sun. The number that decides your bill is whole-unit U-factor.

Welded Vinyl Replacement Windows in Bellingham, WA

Welded Vinyl Replacement Windows

Vinyl is the correct answer for most houses in this market, and we will say so out loud even when a pricier frame is sitting open in the same brochure. In a mild marine climate its one genuine weakness, thermal movement, barely gets a chance to show up.

Pultruded Fiberglass Windows in Bellingham, WA

Pultruded Fiberglass Windows

Pultruded fiberglass costs real money, and in this climate the usual sales pitch for it does not apply. Nobody in Bellingham is buying fiberglass because their vinyl was about to warp.

Clad-Wood Windows and Interior Wood Trim in Bellingham, WA

Clad-Wood Windows and Interior Wood Trim

Clad-wood is the right product for a fair number of houses here, particularly in the older neighborhoods where a plain vinyl frame in a period opening looks like a mistake from the sidewalk. It is also the product most reliably destroyed by a humidity problem nobody diagnosed.

Aluminum Windows and 1970s Slider Swaps in Bellingham, WA

Aluminum Windows and 1970s Slider Swaps

A very large share of the houses between here and Sedro-Woolley went up between 1965 and 1985 with single-glazed aluminum sliders. Whatcom County's median home dates to 1988.

Double-Hung Windows That Vent From the Top in Bellingham, WA

Double-Hung Windows That Vent From the Top

Almost every window article on the internet will tell you that a casement seals better than a double-hung, and that is entirely true. On this site we still recommend double-hungs for bedrooms in a great many Bellingham houses, and the reason is the top sash.

Casements, Awnings and Wet-Room Venting in Bellingham, WA

Casements, Awnings and Wet-Room Venting

Casements seal tighter than anything else you can buy. The sash pulls inward against compression weatherstrip, and the harder the wind pushes on it, the tighter that seal becomes.

Sliding Windows and Trickle Venting in Bellingham, WA

Sliding Windows and Trickle Venting

Sliders have a poor reputation and most of it is earned. Two sashes riding on rollers past one another will never seal the way a casement does, and a worn slider leaks air continuously.

Bay and Bow Windows and Their Cold Seats in Bellingham, WA

Bay and Bow Windows and Their Cold Seats

A bay or bow window is a small addition to your house that happens to be made mostly of glass. It has a floor, a roof and two or three walls, and every one of those surfaces is somewhere a builder can leave out insulation without anyone ever seeing it.

Picture Windows and Fixed Architectural Glass in Bellingham, WA

Picture Windows and Fixed Architectural Glass

A picture window is the tightest unit in any catalog, because it has no moving parts and nothing that has to seal against anything else. It is also the only unit you can never open.

Egress Windows for Daylight Basements in Bellingham, WA

Egress Windows for Daylight Basements

Bellingham is built on hills, so daylight basements are everywhere: Sehome, Columbia, the South Hill and most of the newer subdivisions out toward Barkley. Turning that lower floor into a legal bedroom means an egress opening, and there is no talking your way around the numbers.

Impact-Rated Laminated and Security Glass in Bellingham, WA

Impact-Rated Laminated and Security Glass

Let us be straight about this page. Washington is not a hurricane-prone region under the building code, nowhere in Whatcom County is a debris zone, and nobody here is required to buy impact-rated glass.

Patio Sliding Doors and Sill Drainage in Bellingham, WA

Patio Sliding Doors and Sill Drainage

Your patio slider is almost certainly the biggest single pane in the house and the largest air path in the wall. Replace one and you change two things at once: the heat loss through that wall drops sharply, and so does the air moving through the room behind it.

French Doors and Astragal Sealing in Bellingham, WA

French Doors and Astragal Sealing

French doors are the hardest opening in the house to keep sealed, and most people find that out in their second winter, not in the showroom. Two leaves meeting in the middle with no fixed frame between them is a joint that has to be manufactured, not one that exists.

Entry Doors, Thresholds and Sweeps in Bellingham, WA

Entry Doors, Thresholds and Sweeps

Before anything else on this page: if your existing door is fiberglass, the slab is straight and the frame is sound, you may not need a door. You may need a sweep, a threshold adjustment and new corner pads.

Window Screens as Ventilation Hardware in Bellingham, WA

Window Screens as Ventilation Hardware

Most window companies treat screens as an accessory ticked at the end of the order. Here they are ventilation hardware, and we mean it literally.

Glass Repair and Failed Insulated Units in Bellingham, WA

Glass Repair and Failed Insulated Units

This is the page where we talk ourselves out of work, so let us get straight to it. If water is running down the inside of your windows and you can wipe it off with a towel, your seals have not failed and we will not sell you new glass.

Commercial Storefront and Taproom Glass in Bellingham, WA

Commercial Storefront and Taproom Glass

Commercial work here means downtown storefronts, the buildings along the waterfront, the industrial frontages out toward the airport, and a surprising number of taprooms and food businesses. Every one of those carries a moisture load a house never approaches, and it lands squarely on the glass.

What each of our services covers in Bellingham

Open any service to see exactly what is included before you call.

Energy-Efficient Windows and Air Sealing

Bellingham runs about 5,559 heating degree days a year, so nearly all the energy your house loses goes out as heat rather than in as sun. The number that decides your bill is whole-unit U-factor. It is rarely the number a salesperson leads with.

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Welded Vinyl Replacement Windows

Vinyl is the correct answer for most houses in this market, and we will say so out loud even when a pricier frame is sitting open in the same brochure. In a mild marine climate its one genuine weakness, thermal movement, barely gets a chance to show up. Vinyl expands and contracts considerably more than wood or fiberglass does.

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Pultruded Fiberglass Windows

Pultruded fiberglass costs real money, and in this climate the usual sales pitch for it does not apply. Nobody in Bellingham is buying fiberglass because their vinyl was about to warp. They should be buying it for sightlines, for paint, and for how it ages in constant wet.

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Clad-Wood Windows and Interior Wood Trim

Clad-wood is the right product for a fair number of houses here, particularly in the older neighborhoods where a plain vinyl frame in a period opening looks like a mistake from the sidewalk. It is also the product most reliably destroyed by a humidity problem nobody diagnosed. The cladding is extruded or roll-formed aluminum on the outside, and it handles the rain perfectly well.

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Aluminum Windows and 1970s Slider Swaps

A very large share of the houses between here and Sedro-Woolley went up between 1965 and 1985 with single-glazed aluminum sliders. Whatcom County's median home dates to 1988. Those frames are why a lot of people call us, and replacing them is a bigger event than it looks.

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Double-Hung Windows That Vent From the Top

Almost every window article on the internet will tell you that a casement seals better than a double-hung, and that is entirely true. On this site we still recommend double-hungs for bedrooms in a great many Bellingham houses, and the reason is the top sash. Warm, wet air collects at the ceiling, which is basic physics and also why upstairs rooms feel stuffy first.

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Casements, Awnings and Wet-Room Venting

Casements seal tighter than anything else you can buy. The sash pulls inward against compression weatherstrip, and the harder the wind pushes on it, the tighter that seal becomes. That is the standard argument for specifying casements everywhere, and in this market we deliberately do not follow it.

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Sliding Windows and Trickle Venting

Sliders have a poor reputation and most of it is earned. Two sashes riding on rollers past one another will never seal the way a casement does, and a worn slider leaks air continuously. In a windy market that is a serious argument.

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Bay and Bow Windows and Their Cold Seats

A bay or bow window is a small addition to your house that happens to be made mostly of glass. It has a floor, a roof and two or three walls, and every one of those surfaces is somewhere a builder can leave out insulation without anyone ever seeing it. In this climate that omission has an entirely predictable ending.

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Picture Windows and Fixed Architectural Glass

A picture window is the tightest unit in any catalog, because it has no moving parts and nothing that has to seal against anything else. It is also the only unit you can never open. Both of those facts matter considerably more here than they do almost anywhere else.

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Egress Windows for Daylight Basements

Bellingham is built on hills, so daylight basements are everywhere: Sehome, Columbia, the South Hill and most of the newer subdivisions out toward Barkley. Turning that lower floor into a legal bedroom means an egress opening, and there is no talking your way around the numbers. The numbers are fixed and there is no arguing your way around any of them.

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Impact-Rated Laminated and Security Glass

Let us be straight about this page. Washington is not a hurricane-prone region under the building code, nowhere in Whatcom County is a debris zone, and nobody here is required to buy impact-rated glass. If someone told you otherwise, they were reading a Florida script.

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Patio Sliding Doors and Sill Drainage

Your patio slider is almost certainly the biggest single pane in the house and the largest air path in the wall. Replace one and you change two things at once: the heat loss through that wall drops sharply, and so does the air moving through the room behind it. The failure we see most often around here is not the glass and it is not the rollers.

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French Doors and Astragal Sealing

French doors are the hardest opening in the house to keep sealed, and most people find that out in their second winter, not in the showroom. Two leaves meeting in the middle with no fixed frame between them is a joint that has to be manufactured, not one that exists. That joint is the astragal, a vertical member fixed to one leaf that the other closes against.

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Entry Doors, Thresholds and Sweeps

Before anything else on this page: if your existing door is fiberglass, the slab is straight and the frame is sound, you may not need a door. You may need a sweep, a threshold adjustment and new corner pads. That is a couple of hundred dollars, not several thousand.

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Window Screens as Ventilation Hardware

Most window companies treat screens as an accessory ticked at the end of the order. Here they are ventilation hardware, and we mean it literally. A torn screen is the commonest reason a Bellingham household stops opening a window, and that shows up later as water on the glass.

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Glass Repair and Failed Insulated Units

This is the page where we talk ourselves out of work, so let us get straight to it. If water is running down the inside of your windows and you can wipe it off with a towel, your seals have not failed and we will not sell you new glass. The test takes five seconds and you can do it right now.

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Commercial Storefront and Taproom Glass

Commercial work here means downtown storefronts, the buildings along the waterfront, the industrial frontages out toward the airport, and a surprising number of taprooms and food businesses. Every one of those carries a moisture load a house never approaches, and it lands squarely on the glass.

A dish machine, a brew kettle, a bank of espresso equipment or forty people in one room on a wet Friday evening will put more water into the air than a family does in a week.

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What Bellingham property owners ask us

Which window services does Bellingham Window Replacement handle?

Everything listed on this page, residential and commercial, across Bellingham and Whatcom County and northern Skagit. Work is done by our own crews rather than handed to whoever is cheapest that week, which is the only way the workmanship warranty means anything.

Can I combine more than one service in a single job?

Yes, and it is usually cheaper. Bundling window work into one mobilization saves setup, disposal and travel, and it means one crew, one schedule and one written free estimate instead of three contractors blaming each other.

Do you give free estimates for every service?

Every one. We come out, measure, look at the real condition of the work area, and put an itemized free estimate in writing with materials and scope spelled out. No charge, no deposit, and no obligation to book.

What Bellingham Customers Say

★★★★★
They took a humidity reading in three rooms before they would quote anything, which nobody else did. Turned out our kitchen hood was recirculating straight back into the room. We fixed that first and did the windows in spring.
Dana R. · Ferndale
★★★★★
Wanted clad-wood in the front rooms. They told me the bedrooms were sitting at 58 percent in December and the wood stools would go black. We sorted the fans, waited a month, then they built exactly what I asked for.
Marcus T. · Lynden
★★★★★
Two fogged units in the dining room. They replaced just the glass and left the sash alone, about a fifth of what the last quote said. Told me the rest of the house was fine and did not try to sell me anything else.
Ingrid S. · Anacortes
★★★★★
Whole house of 1970s aluminum sliders. They warned me before we started that the place would feel damp afterwards and priced a fan into the job. It did, the fan handled it, and nobody had to argue about it in January.
Cody B. · Sedro-Woolley
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