Bellingham Window Replacement provides professional aluminum windows and 1970s slider swaps in Bellingham, WA for residential and commercial properties across Whatcom County and northern Skagit. 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.
An untreated aluminum frame is on the order of a thousand times more conductive than the vinyl sitting next to it. The frame ends up being the coldest surface in the entire room, colder than the glass sitting in it, which is exactly why the water on an old aluminum window pools along the track rather than running down the face of the pane.
Homeowners have usually been living with that for fifteen years and have quietly adapted around it. A towel on the sill every morning. A window cracked in the bathroom permanently, in all weather. The tracks weeping into the sill and draining out through the little holes at the front, which is exactly where a designed system would have put the water.
Now swap thirty of those for welded vinyl in a single week. This is the largest air-tightening event most of these houses will ever experience, and it usually happens in November, because November is when people finally get around to it. The complaint arrives about six weeks later, in the first properly cold stretch. November installs and January phone calls go together in this county.
It is the same water it always was. It used to leave the building through thirty leaky aluminum frames and out the weep holes without anyone thinking about it, and now it has nowhere at all to go, so it appears on the coldest remaining surface and the brand-new windows take the blame. We have had that conversation often enough now that we start it before the deposit rather than after.
That is why on a whole-house aluminum swap we insist on the ventilation conversation before we take a deposit, not after. Washington already requires every dwelling unit to have a ventilation system under section M1505 of the residential code. Plenty of these houses have one on paper and a painted-over grille in reality.
Aluminum is not a bad material and we are not against it on principle. With a polyamide strut running through the frame it becomes a perfectly legitimate residential choice, and for wide commercial openings it remains the only sensible one on the market. What we will not do is put an unbroken residential aluminum frame back into a heated room.
If your aluminum windows are structurally sound and the actual complaint is drafts, ask us about new weatherstrip and rollers before you ask about replacement. On several of the common 1970s lines the parts still exist, and a few hundred dollars of hardware honestly buys you another decade of service. Ask us to price that first and we will.
Our licensed and insured team brings the right materials and equipment to every job — trickle vents let into the head of a replacement sash, a heat-recovery ventilator ducted to the bedrooms, six-mil black polyethylene ground cover across a crawl space floor, an insulated bath fan duct run short and straight to a wall cap, a backdraft damper that actually closes when the fan shuts off, a two-week humidity log taken before anything gets ordered — and backs the work with a written workmanship warranty. We serve Bellingham and nearby communities including Ferndale, Lynden, Blaine, Birch Bay.
What We Handle
Everything our aluminum windows and 1970s slider swaps in Bellingham covers
One crew, one point of contact, and the full range of aluminum windows and 1970s slider swaps work in Bellingham, WA. If it is on this list we do it in house rather than handing it to a subcontractor:
- aluminum windows Bellingham WA
- thermally broken aluminum windows Washington
- replace old aluminum windows Bellingham
- 1970s aluminum slider replacement
- polyamide thermal break windows
- aluminum window condensation Bellingham
- aluminum frame windows Whatcom County
- single pane aluminum window replacement
- aluminum windows Sedro-Woolley
- metal window frames replacement Bellingham
- aluminum window repair Whatcom County
- commercial aluminum windows Bellingham
- aluminum window sill drainage
- cold aluminum frames sweating
- aluminum to vinyl window conversion Bellingham
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Bellingham services.
Materials, equipment and how we do aluminum windows and 1970s slider swaps
The difference between aluminum windows and 1970s slider swaps that lasts and aluminum windows and 1970s slider swaps that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with trickle vents let into the head of a replacement sash, a heat-recovery ventilator ducted to the bedrooms, six-mil black polyethylene ground cover across a crawl space floor, an insulated bath fan duct run short and straight to a wall cap, spec them to the job instead of to the invoice, and write the material grades into the free estimate so you know exactly what you are buying.
Every Bellingham job runs the same way: site walk and measurements, written scope and fixed price, protection of the surrounding area, then the work itself with a daily clean-up. Years of window work in Whatcom County and northern Skagit means we have already met whatever your property is going to throw at us — awkward access, older construction, an HOA with opinions.
Where we do aluminum windows and 1970s slider swaps outside Bellingham
Bellingham Window Replacement covers Bellingham and the surrounding communities of Whatcom County and northern Skagit. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Aluminum Windows and 1970s Slider Swaps in Ferndale, WA — Whatcom County, population 15,048 at the 2020 census
- Aluminum Windows and 1970s Slider Swaps in Lynden, WA — Whatcom County, population 15,749 at the 2020 census
- Aluminum Windows and 1970s Slider Swaps in Blaine, WA — Whatcom County, population 5,884 at the 2020 census
- Aluminum Windows and 1970s Slider Swaps in Birch Bay, WA — Whatcom County, population 10,115 at the 2020 census
- Aluminum Windows and 1970s Slider Swaps in Everson, WA — Whatcom County, population 2,888 at the 2020 census
- Aluminum Windows and 1970s Slider Swaps in Nooksack, WA — Whatcom County, population 1,471 at the 2020 census
Start on the Bellingham Window Replacement homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Bellingham Chooses Bellingham Window Replacement
- ✓We take a relative humidity reading in the house before we price a single window, because the complaint that brought you to us is often not about glass at all
- ✓If your bath fans are the problem we say so and leave without an order, and we tell you roughly what the fan should cost you
- ✓We quote the sealed unit before the whole window, since a fogged pane in sound sash with sound hardware is a glass job and gets priced like one
- ✓Every replacement quote names the ventilation the house will need once it is tight, in writing, next to the window price
The standards behind aluminum windows and 1970s slider swaps
Quality here is not a matter of opinion — it is written down. The aluminum windows and 1970s slider swaps work we do in Bellingham follows published industry standards: NFRC sets the U-factor and SHGC ratings on every window label, and ENERGY STAR defines the efficiency thresholds by climate zone. If a contractor cannot tell you which standard a detail comes from, that is worth asking about before you sign.
Every aluminum windows and 1970s slider swaps project in Bellingham gets the same attention, whether it is a single room or a full commercial job. We show up on schedule, keep the site clean, and stand behind the work — the estimate is free and there is no pressure.
Ready to get started? Call (844) 511-2320 for a free aluminum windows and 1970s slider swaps free estimate in Bellingham, or request a quote and we'll get right back to you.