How Much Do Double-Pane Windows Cost? [2025 Data]
Installing double-pane windows costs about $1,000 per window on average, with most homeowners paying between $300 and $2,100, depending on installation costs and window size, material, and style.
It costs an average of $1,000 per window to install a double-pane window, but you might pay anywhere from $300 and $2,100 for materials and labor. Double-pane windows help insulate and soundproof your home using their two-pane construction, often with argon or krypton glass between the panes. Our guide explores the various factors that can affect how much you’ll pay for double-pane windows.
Double-Pane Windows Cost Factors
Double-pane windows can cost anywhere between $150 and $7,000, and where in that range your total falls depends on a few key factors.
Frame Material
The window frame material you choose will have the greatest impact on the cost per window. Aluminum will usually be the most affordable frame material, averaging around $440 per window, while fiberglass window frames with double-pane glass are the most expensive at around $1,200 per window.
The cost table below includes average prices for double-pane windows with different frame materials.
| Frame Material | Window Cost |
|---|---|
| Aluminum | $200–$700 |
| Composite | $400–$1,500 |
| Fiberglass | $600–$2,500 |
| Steel | $400–$1,500 |
| Vinyl | $300–$1,500 |
| Wood | $400–$1,800 |
Frame materials vary quite a lot in price but also deliver different levels of curb appeal, longevity, durability, and insulation from outdoor temperatures and sound. As such, you should consider its up-front cost, lifespan, energy efficiency, and the need for ongoing window repairs. Since choosing the best frame material is complicated, we recommend speaking with a local window company for help.
Style
The style of your window determines how much you’ll spend as well, with prices fluctuating depending on the size and shape of the window, how complex the opening and locking mechanisms are, and how bulky or difficult to lift into place the window is. The larger and more complex your double-pane window is, the more expensive you can expect it to be. A good rule of thumb to remember is that windows with operable sashes tend to cost more, given their complexity.
| Window Style | Window Cost |
|---|---|
| Single-hung | $200–$900 |
| Double-hung | $250–$1,100 |
| Sliding window | $250–$1,200 |
| Casement window | $250–$2,000 |
| Picture window | $170–$1,000 |
| Hopper window | $150–$600 |
| Bay window | $700–$6,000 |
| Bow window | $1,600–$7,000 |
See below for more details about the different styles of double-pane windows and their costs.
Size
As is the case with all types of windows, the bigger the double-pane window you install, the more you’ll pay, especially if you venture outside of standard window sizes and into custom options. You can expect to pay between $75 and $110 per square foot for double-pane windows. Prices increase based on additional manufacturing materials, as well as increased labor costs.
| Window Dimensions (Ft.) | Installation Cost |
|---|---|
| 2-by-1 | $150–$220 |
| 2-by-3 | $450–$700 |
| 3-by-2 | $450–$700 |
| 3-by-4 | $900–$1,300 |
| 4-by-3 | $900–$1,300 |
| 4-by-4 | $1,200–$1,800 |
| 4-by-6 | $1,800–$2,600 |
| 5-by-3 | $1,100–$1,700 |
| 6-by-4 | $1,800–$2,600 |
| 7-by-5 | $2,600–$3,900 |
| 8-by-5 | $3,000–$4,400 |
| 8-by-8 | $4,800–$7,000 |
| 10-by-6 | $4,500–$6,600 |
Number of Windows
The number of double-pane windows you need installed will play a role in your total per window. Most window contractors will discount the per-unit cost of double-pane windows as the number of windows you need increases. Since your installer will already be on site, they save time and money replacing multiple windows, and those savings are often passed on to you.
For example, you might pay $1,000 to install just one double-pane window, but the price per window could drop to $900 or less if you’re looking to replace all of the windows in your home to upgrade to double-pane glass.
| Number of Windows | Average Cost |
|---|---|
| 3–4 | $3,000–$4,000 |
| 5–10 | $4,750–$14,250 |
| 11–20 | $9,900–$18,000 |
Glass Type
Double-pane glass is technically a type of window glass on its own. Along with triple-pane glass, it’s collectively referred to as insulated glass. However, there are other glass types you can choose to improve home security and privacy. Each of these options will increase the window replacement cost of double-pane options, but they can make your home safer and more comfortable.
Below are the different types of window glass you can choose from aside from opting for insulated glass. Remember that these are average prices, and your costs could be higher based on window size, type, and frame material.
| Glass Type | Cost Per Window |
|---|---|
| Frosted glass | $450–$1,100 |
| Laminated glass | $400–$950 |
| Low-E glass | $500–$1,400 |
| Tempered glass | $300–$1,000 |
Window Brand
The brand you choose will have an impact on your double-pane windows cost, as different brands vary in quality, longevity, and warranty. As you might expect, higher-quality brands tend to last longer and come with better warranty protection, but they’ll also cost more.
You can choose budget window brands to keep your costs down, but they could end up costing you more over time if you need to replace them sooner or on heating and cooling bills if they are less energy-efficient.
The prices below are averages, so prices can increase for larger windows, more complex designs, and higher-quality frame and glass materials.
| Brand | Window Cost |
|---|---|
| Alside | $150–$1,800 |
| Andersen | $250–$3,500 |
| Castle | $200–$2,000 |
| Champion | $200–$2,200 |
| Feldco | $150–$1,500 |
| Harvey | $200–$2,200 |
| Marvin | $250–$4,000 |
| Milgard | $250–$4,000 |
| Pella | $150–$3,500 |
| Ply Gem | $150–$1,800 |
| Simonton | $200–$2,000 |
DIY vs. Hiring a Pro to Install Double-Pane Windows
Installing double-pane windows yourself can save you an average of $100 to $200 per window in installation costs. However, if you don’t have the experience or necessary tools on hand to tackle this as a DIY project, hire a window replacement pro instead. Incorrectly installed windows can lead to costly problems down the line and may even require you to buy new windows again much sooner than you expected, so it’s worth making sure the job is done right.
A local window contractor will have the skills and experience to expertly install your double-pane windows, ensuring the windows provide the insulation, noise reduction, and energy efficiency they’re known for and avoiding any damage that can arise from improper installation.
Cost of Common Double-Pane Window Add-Ons
Installing new double-pane windows is a big home improvement job that can get expensive, but you could save some money overall if you have your window expert complete other work while they’re already on site. Below are some common add-on options homeowners choose when installing double-pane windows, some of which apply to other windows in your home that you’re not replacing:
Window cleaning: $100–$450
Window repair: $150–$600 per window
Screen repair or replacement: $100–$500 per window
Installing window treatments: $40–$4,800 per window
Installing storm windows: $100–$300 per window
Window security film: $20–$600 per window
Low-emissivity (low-E) coatings: $300–$1,000 per window
Window tinting: $150–$1,600 per window
How to Save Money on Double-Pane Windows
Double-pane windows will save you money on utilities over time, thanks to their improved insulation properties compared to single-pane windows. However, that added efficiency means these windows come with a higher up-front cost. Don’t worry, though—there are several things you can do to keep the cost of double-pane windows down.
Shop in the winter: Need new windows? You can get deals by shopping in the off-season when window installation companies are normally in a lull.
Opt for standard sizes: Unless you really want a custom window, shop for smaller, standard-sized windows to save money on materials and installation.
Replace multiple windows: You can get deals on the per-window price and the cost of installation by buying in bulk and replacing more windows at once. Your total will, of course, be higher, but you’ll save a bit on each window.
Skip the extras: Double-pane windows offer great insulation, so you may not need to add the cost of other upgrades, like low-E window films or window tinting.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to costquotes@angi.com. Quotes and personal information will not be shared publicly.
Frequently Asked Questions
Double-pane windows offer better insulation and increased efficiency, meaning they limit heat loss from your home. That means they’ll help keep your living space more comfortable and bring down utility costs. The two panes are filled with air or gas, so they can also help limit the amount of noise coming into your home from outside. The dual panes strengthened by spacers also improve the durability and security of your windows.
The least expensive type of double-pane window to install is a small hopper window, but these are usually reserved for basements. On your main floor, a single-hung window or picture window with a vinyl or aluminum frame will be the most affordable. Larger windows tend to be more expensive, and windows with more parts, like double-hung windows with two moving sashes or large bay windows with multiple sections of windows, also cost more to install.
Double-pane windows increase your home’s energy efficiency, leading to lower energy bills and more comfortable temperatures inside. They also dramatically reduce noise from outside compared to single-pane windows, so you’ll notice your home is significantly quieter once you’ve installed double-pane windows. If you’re replacing your windows, the initial investment in double-pane styles can be well worth the up-front cost.
