Aluminum Windows Cost (2026)
Slim, strong frames popular for modern and large openings. Inexpensive, but a poor insulator without a thermal break.
$397 – $846
per window installed (US). Typical mid-range: $620. Canada: $450–$1,000 CAD.
Where to buy
| Tier | Where to buy | US price / window |
|---|---|---|
| Budget | Big-box stock aluminum, regional extruders | ~$397 |
| Mid-range | Milgard aluminum, thermally-broken lines | ~$620 |
| Premium | Architectural thermally-broken systems | ~$846 |
Top brands & quality notes
Milgard, regional aluminum extruders; architectural thermally-broken systems at the high end.
Only buy thermally-broken aluminum for any heating/cooling climate. Untreated aluminum is best left to mild regions or sunrooms.
Pros & cons
Pros
- Very strong; supports large glass with slim sightlines
- Low cost and low maintenance
- Ideal for modern designs and big openings
Cons
- Conducts heat/cold; poor insulator without thermal break
- Can cause condensation in cold climates
- Often needs upgrades to hit ENERGY STAR
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