Dual Pane Windows Cost Calculator

Our dual pane windows cost calculators can help you find industry standard pricing for an array of different double pane window options and price points. We recommend that consumers spend some time putting in different options into our calculators in order to see how they will affect the price that you will pay for your next double pane window.

Our first calculator is more of a project pricing calculator in which you can enter as many windows as you would like. Our second calculator is more specific to a single window and includes the many different options and upgrades that homeowners can choose from when they are shopping for replacement windows.

Dual Pane Basics

Dual pane windows account for roughly 85% of all windows sold today. The reason is for their much improved energy efficiency over older single pane windows. The other category of windows still sold today that does not use two panes of glass is called a window insert, sometimes called a storm window, which are typically single pane frames that work with your existing windows.

More or less all remaining new construction and replacement windows sold today have two panes of glass as part of the insulated glazing unit or IGU. The IGU plays a huge role in the energy efficiency of modern windows sold in the past two decades.





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How Dual Pane Windows Work

Dual pane windows are part of the insulated glazing unit. Along with the two panes of glass, an IGU consists of a spacer, argon or krypton fills and seals that help keep the unit airtight. All of these parts work together to create a much more energy efficient window that blocks heat and/or cold from passing through the IGU.

The most important component of the dual pane window structure is the low E glass that reflects certain UV rays from entering the home. Similarly, the low E glass on the inside of the window traps the heat during the cold winter months and helps create a more comfortable and energy efficient environment.

Vinyl Dual Pane Window Costs

Double pane vinyl window costs range from $10 - $40 per square foot fully installed. This means that a window opening that is 48" x 60' will run anywhere from $200 to $800 fully installed. This is a big price range that will depend on a number of factors that includes the specific manufacturer, the number of upgrades and add-ons that you opt for, as well as the type of installation that you require.

Here are several examples of vinyl window models and the price range that consumers will most likely pay.

Alside Mezzo Series: $20 psf fully installed
Great Lakes Uniframe: $30 psf fully installed
Okna 800 Window: $40 psf fully installed

Fiberglass Dual Pane Window Costs

Fiberglass double pane windows costs range from $25 to $55 per square foot fully installed. This means that a window opening that is 48" x 60" will run anywhere from $500 - $1,100 fully installed. This price range will also depend on a number of factors that includes the manufacture that you buy from, the upgrades and add-ons that you select, as well as the installation that the project requires.

Here are several examples of manufacturers and window series and the price range that homebuyers can expect to pay.

Milgard Ultra Series: $25 psf fully installed

Marvin Infinity Series: $40 psf fully installed

Alpen 925 Series: $55 psf fully installed

Wood Dual Pane Window Costs

Wood double pane window costs will typically range from $35 - $75 per square foot fully installed. So for example, an opening that is 48" x 60" will run $700 to $1,500 fully installed. Just as with fiberglass and vinyl windows, the main factors that drive the price of wood windows include the actual window company, the model you select, the number of upgrades and glass package, as well as the installation requirements.

Here are some examples of real life window models and the price range that consumers will most likely pay.


Kolbe Classic Window: $35 psf fully installed

Andersen 400 Series: $50 psf fully installed

Marvin Ultimate Window: $70 psf fully installed





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Aluminum Dual Pane Prices

Aluminum double pane prices will typically range from $20 to $40 per square foot fully installed. An opening that is 48" x 60" will run $400 to $800 fully installed - the same basic price range as a fiberglass window.

Here are several examples of aluminum window models and the price range that consumers will most likely pay.


Milgard Aluminum: $25 psf fully installed

Don Young: $35 psf fully installed