"What do aluminum windows cost?" is a fair question that almost never gets a straight answer, because the honest reply is a range, and the range is wide. But wide is not the same as unknowable. After pricing a lot of these packages, I can tell you what actually moves the number and where premium European aluminum tends to land - so you can sanity-check a quote instead of squinting at it.
The short answer, per square foot
For premium thermally broken European aluminum windows, supplied and landed in the US, plan on roughly $55 to $95 per square foot of window. That's the supply number - the windows themselves, delivered - not installation, which is a separate local labor line I'll come back to.
The spread inside that range is not random. A large fixed picture window sits near the bottom; a small operable tilt-turn unit sits near the top; a glazed entrance door sits above both. If someone quotes you a single "$X per square foot" for a whole mixed package, that's a blended average, and it's only meaningful once you know the mix. For a broader look across materials, our guide on how much European windows cost puts these aluminum numbers next to uPVC.
What actually drives the number
Six things explain almost all of the variation in an aluminum window quote:
1. Size. This is the biggest and most counterintuitive driver. Cost per square foot drops as the unit gets bigger, because a lot of the cost is in the frame perimeter, hardware, and handling - not the glass field. A small 5-square-foot window can run more than double the per-square-foot rate of a large 30-square-foot one. When you compare quotes, compare like sizes.
2. Operation type. A fixed window is the cheapest thing you can buy per square foot - no hardware, no seals, no moving parts. A tilt-turn operable unit costs meaningfully more because it carries multi-point hardware and compression seals all the way around. A glazed door costs the most - typically a couple of times the per-square-foot rate of a fixed window of the same size - because of the hardware, the multi-point lock, and the heavier profiles.
3. Glass package. Double versus triple glazing, standard versus tempered (ESG), and any acoustic or solar-control coatings all move the price. On a slim aluminum frame, going from double to triple glazing typically adds somewhere in the mid-single digits to low-double digits percent, because on a thin frame the glass is a bigger share of the total cost. Tempered glass adds a few percent and is effectively mandatory on large panes anyway.
4. Muntins and bars. Simulated divided lites (SDL) or bars between the panes add roughly 15 to 19 percent over a clean, no-bar unit. If the design has a lot of grid, that's a real line item, not a rounding error.
5. Finish and color. Standard RAL colors and anodized finishes are close in price; specialty finishes, dual-color (different inside and out), or wood-look laminates carry a modest surcharge. For the full menu, see our piece on European window colors and finishes.
6. Certification and US-spec details. An NFRC energy label adds a small per-unit fee. A nailing flange for US-style installation adds a bit on framed windows. Neither is large individually, but they belong in the quote.
Duty is part of the landed price
European aluminum windows imported into the US currently carry a duty in the neighborhood of 26 percent on aluminum (uPVC sits lower, around 20 percent). A properly quoted landed price already has that baked in - it should not appear as a surprise later. If you're comparing an import quote to a domestic one, make sure you're comparing the all-in landed number, and ask whether duty and freight are included or bolted on afterward. Tariff and duty rates move, so it's worth confirming the current figure at the time you order.
How European aluminum compares
Against domestic US aluminum, premium European systems usually cost more per square foot on supply - but the comparison is rarely apples to apples. Most US aluminum residential windows are single-operation and use a simpler thermal break; European systems bring tilt-turn operation, multi-point hardware, and a deeper thermal break as standard. You're buying a different level of performance and sightline, not the same window from a different port. Our American vs European aluminum benchmark lays the specs side by side.
Against uPVC, aluminum costs roughly two to three times as much per square foot. uPVC premium European windows land closer to $20 to $30 per square foot; aluminum's $55 to $95 reflects the slimmer sightlines, the structural spans it can achieve, and the finish durability. The aluminum vs PVC guide walks through when each one is the right call - it's a genuine design decision, not just a budget one.
What the number does not include
The per-square-foot supply range above is windows delivered to your site. It does not include:
- Installation labor, which is local and varies widely by market, opening type, and how the windows mount (flange, bracket, or into a prepared buck).
- Site conditions - openings that need rework, structural headers for big glass, or waterproofing details.
- Doors priced as windows. Glazed entrance and lift-and-slide doors are their own line and run higher; don't average them into the window rate.
I always break these out separately in a quote, because burying installation inside a per-square-foot number is how two bids that look different turn out identical - or vice versa.
Getting a real number for your project
A per-square-foot range is useful for a gut check, but your actual number depends on your specific mix of sizes, operations, glass, and finish. The fastest way to a grounded figure is running your window schedule through the project estimator - it uses the real system pricing behind the ranges in this article, factors in duty, and gives you an all-in supply figure rather than a marketing average. From there, add your local installation quote and you have a budget you can actually plan around.
FAQ
How much do aluminum windows cost per square foot in the US? For premium thermally broken European aluminum, supplied and landed, plan on roughly $55 to $95 per square foot. Fixed windows sit near the bottom, operable tilt-turn units higher, and glazed doors above both. Installation is separate and local.
Why are aluminum windows more expensive than vinyl? Aluminum runs roughly two to three times uPVC per square foot because of slimmer sightlines, larger structural spans, a deeper thermal break, and finish durability. Premium European uPVC lands closer to $20 to $30 per square foot.
Does the price include import duty? A properly quoted landed price includes duty (currently around 26 percent on aluminum) and freight. Always confirm whether a quote is all-in landed or whether duty and shipping are added afterward, since rates change.
What makes one aluminum window cost more than another the same size? Operation type (fixed vs tilt-turn vs door), glass package (double vs triple, tempered, coatings), divided-lite bars, finish, and US-spec details like an NFRC label and nailing flange. Size matters too - larger units cost less per square foot.