An aluminum window typically costs $400-$1,200 installed, with an average near $700 for a standard replacement; large, custom, or thermally improved models can cost more. A useful estimate depends on window dimensions, glass package, labor, removal, and local installation rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Standard aluminum window installed | $400 | $700 | $1,200 | Per window, replacement installation |
| Window unit only | $200 | $450 | $850 | Standard sizes and glass options |
| Installation labor | $150 | $300 | $500 | Per opening, normal access |
| Installed price by area | $40/sq. ft. | $65/sq. ft. | $100/sq. ft. | Custom sizes can exceed this range |
What Does an Aluminum Window Cost Installed?
For a common 36-by-48-inch aluminum replacement window, a planning range is $400-$1,200 per opening, including the window, standard installation, and basic cleanup. A typical project using midrange double-pane units averages about $700 per window. A 10-window home might therefore budget $4,000-$12,000, before repairs to damaged frames or unusual exterior trim.
Prices generally assume a standard rectangular opening, ground-level or accessible work, and no major structural changes. Basic non-thermally broken frames sit toward the low end; insulated aluminum frames, custom colors, and upgraded glass move estimates upward. Assumptions: U.S. standard sizes, ordinary access, midrange products, and no concealed water damage.
For initial budgeting, use roughly $700 per standard installed window, then adjust for size and glass specifications.
How Frame, Glass, and Installation Charges Add Up
Window quotes divide into the product and the work needed to fit it. The table below reflects common charges for one standard opening; providers may bundle labor, disposal, and trim instead of listing them separately.
| Quote component | Low | Average | High |
|---|---|---|---|
| Aluminum frame and sash | $200 | $350 | $650 |
| Double-pane glass package | $50 | $125 | $250 |
| Removal and installation labor | $150 | $300 | $500 |
| Disposal and basic trim materials | $25 | $75 | $175 |
| Permit or inspection allowance | $0 | $50 | $200 |
Ask whether the labor line includes old-window removal, flashing, interior trim, exterior sealing, and disposal. These inclusions can explain why two quotes for apparently similar windows differ by several hundred dollars.
Which Window Sizes and Glass Specs Raise the Estimate?
Dimensions are a major calculator input: a 24-by-36-inch window uses less material and often installs faster than a 48-by-60-inch unit. Windows wider than about 48 inches, taller than 60 inches, or assembled as multi-panel units may require custom fabrication, added handling, or a second installer. Arched, shaped, and oversized openings need individual pricing rather than a simple per-square-foot estimate.
Glass also changes the total. Standard double-pane glass is usually the economical replacement choice; low-E coatings, gas fill, laminated safety glass, and triple-pane construction add cost. A thermally broken frame, which uses an insulating barrier through the aluminum, commonly costs more than a basic aluminum frame but can reduce heat transfer. Local energy codes may require specific glazing performance.
Measure the rough opening and record glass features before using a per-window calculator. Use the area-based result as a cross-check, not a final quote, since labor and custom fabrication do not scale perfectly with area.
Can Aluminum Frame Repairs Cost Less Than Replacement?
Repair may be worthwhile when the frame is sound and the problem is limited to a latch, screen, weatherstripping, or isolated seal. Typical service calls run $100-$250, while hardware or weatherstrip repairs often total $75-$300. Replacing an insulated glass unit can cost about $150-$450, depending on dimensions and glazing, and may preserve the existing frame.
Replacement becomes more compelling when several frames are corroded, warped, leaking, or difficult to operate. A failed seal in one sash does not automatically mean the whole window must be removed. Have the quote distinguish glass replacement from full-frame replacement, which removes the existing frame and can require extra interior and exterior finish work.
Compare the repair price with the full installed replacement price for the same opening before approving a broader scope.
What Three Aluminum Window Quotes Might Include
These examples show how size and scope affect a practical estimate. Actual pricing varies by product line, market, and contractor; totals include ordinary installation but exclude extensive wall repairs.
| Project | Approximate scope | Estimated total |
|---|---|---|
| Small replacement | 4 windows, 24-by-36 inches; $450 each installed | $1,800 |
| Typical room update | 6 windows, 36-by-48 inches; $700 each installed | $4,200 |
| Large custom opening | 3 windows, 48-by-60 inches; $1,150 each installed | $3,450 |
A custom opening may cost more per window even when the project has fewer units. When comparing estimates, check frame type, glass rating, removal, finish work, and warranty rather than comparing the total alone.
How Regional Labor Rates Change the Window Budget
Installed prices often run 10%-25% above national planning ranges in high-cost metros, including parts of the Northeast and West Coast, where labor and disposal fees are higher. Smaller cities and rural markets may come in 5%-15% below those metro rates, although delivery charges can offset the difference if suppliers are far away.
Regional weather and building requirements can also affect specifications. Wind exposure, coastal corrosion, energy codes, and historic-district rules may call for stronger hardware, different finishes, or approved glass. Request a local quote that identifies any required product upgrades instead of assuming a national per-window price applies unchanged.
Use a regional adjustment of roughly 10%-25% for early planning, then replace it with local written bids.
How Many Labor Hours Should Installation Take?
A straightforward replacement generally takes about 1-2 hours per standard window for a two-person crew, including removal and setting the new unit. Difficult access, brittle trim, masonry openings, or custom fitting can extend the work to 3-5 hours per window. Labor pricing commonly falls around $75-$125 per worker-hour, though contractors may quote per opening or by the project.
For six standard openings, a crew completing the work in one day may charge roughly $900-$2,400 for labor, depending on crew size, region, and scope. Confirm whether the stated rate covers sealing, insulation, cleanup, and disposal.
Installation time is most predictable when measurements are confirmed and replacement units are on site before the crew arrives.
Which Choices Can Lower an Aluminum Window Estimate?
Keeping standard rectangular dimensions and choosing a common frame color can avoid custom-fabrication charges. Compare double-pane packages with premium glazing line by line; pay for coatings or specialty glass when they address a real climate, noise, or safety need. If the existing frame is structurally sound, ask whether a sash or glass-unit replacement is possible instead of full-frame removal.
Get at least three itemized bids using the same measurements and specifications. A multi-window project may reduce per-opening labor, but confirm that the contractor is not substituting lower-grade frames or omitting trim work. Scheduling outside peak replacement periods can help when installers have more availability, though urgency and local demand affect any discount.
The clearest savings usually come from controlling custom dimensions, unnecessary upgrades, and duplicate labor or disposal charges.