Double-pane windows are a popular upgrade for homeowners, with costs typically ranging from $200 to $700, though they can cost $100 to $4,500 per window, including installation. Known for their superior insulation, sound reduction, and energy efficiency, double-pane windows feature two panes of glass separated by an argon gas-filled spacer to minimize heat transfer and temperature loss.
Multiple factors can affect the cost of your double-pane window project, including the window’s style, size, frame material, and labor costs. Your window installer can help you determine which options work best for you and your budget.
Ready to get your new project moving? Check out our recommended top window brands for an estimate.
- Price Range: $1,200+
- Glass and Hardware Warranty: 10–20 years
- Labor Warranty: 2 years
- BBB Rating: A+
- State Availability: 47 states
- Installs its own patented Fibrex framing
- Includes a transferable 20-year warranty on glass and a 10-year warranty on nonglass materials
- Holds an A+ rating with the Better Business Bureau
- Doesn’t carry aluminum, fiberglass, or wood frames
- Can have long wait times between consultation and installation, according to customer reviews
You can purchase the following window styles from Renewal by Andersen:
- Awning
- Bay/bow
- Casement
- Double-hung
- Picture
- Sliding/gliding
- Specialty windows with geometric shapes
This site receives compensation from the companies featured in this listing, which may impact where and how products appear. This listing doesn’t feature all companies, products, or offers that may be available.
Average Double-Pane Windows Cost
On average, double-pane windows cost $270 to $700 per window. Your specific cost will largely depend on the window type, material, and size you choose. The table below highlights double-pane window cost ranges based on our research.
| Cost Range | Project Price |
|---|---|
| Low-end | $100 |
| National average | $270–$700 |
| High-end | $4,500 |
What Factors Affect the Cost of Double-Pane Windows?
Though most dual-pane windows hover between $270 and $700, they can cost as low as $100 or as high as $4,500. This cost range is expansive because any window type can have double-pane glass.
We explain each of these cost factors below to provide a clearer picture of double-pane window pricing, which can vary based on your chosen window replacement company, window style, frame material, size, window brand, installation type, and where you live.
Window Style
One of the main factors that determines how much your double-pane window will cost is its style. For example, you’ll inevitably pay much more for a bay window than a small double-hung window (and even more than a single-hung window).
When budgeting, your best bet is to decide on the window style you need and then research insulated glass costs for that specific type.
The table below shows cost ranges for six popular double-pane window styles. Figures vary based on the window frame, size, and where it’s purchased. Custom window styles can range from $500 to several thousand dollars per window without accounting for labor costs or any necessary modifications to your home.
| Window Style | Cost per Window |
|---|---|
| Single-hung | $100–$400 |
| Double-hung | $150–$650 |
| Sliding | $150–$800 |
| Casement | $200–$1,000 |
| Picture | $300–$1,200 |
| Bay and bow | $1,000–$4,500 |
Window Frame Material
If you’re replacing the entire window — not just the glass unit — the frame material will also impact your project costs. Different frame materials have varied aesthetic and energy-saving benefits, so replacing old windows with new double-pane glass and durable framing can be a game changer for your home.
Vinyl windows are the best bang-for-your-buck window frame material for most residential homes, largely due to their longevity, affordable cost, and maintenance-free nature, according to Craig Ricks, president of New Orleans-based Acadian Windows. Wood windows are the most expensive.
“[Vinyl windows] are weld-fused together in their corners. Whereas with wood windows, their corners are screwed, glued, caulked, and sealed. Over time, a wood window’s seal could fail, whereas vinyl windows are welded, so the longevity of [vinyl windows] makes more sense,” Ricks said.
You should also consider which window frame best suits your climate. Certain frames provide good insulation in one climate and the opposite in another. Aluminum window frames perform well in mild to warm climates but not in cold climates, according to Jeff Ludy, the owner of Houston Window Experts. Ask your window replacement professional which window frame best fits your location.
The following table lists other common window frame materials and their costs.
| Insulated Window Material | Average Cost Range |
| Vinyl | $400–$1,100 |
| Fiberglass | $450–$1,200 |
| Metal | $600–$1,600 |
| Composite | $600–$1,600 |
| Wood | $800–$1,800 |
Read our window frame materials guide to learn about the pros and cons of each option.
Glass Type
Double-pane window prices fluctuate widely depending on the glass type you choose. A single-hung, double-pane window with low-emissivity (low-e) glass coating costs between $227 and $654, while the same window type with tempered glass costs between $208 and $228, based on our secret shopping at Lowe’s.
Prices also vary between single-, double-, and triple-pane windows. Single-pane windows tend to be the cheapest while offering the lowest energy efficiency because of their single-glass construction. Double-pane glass varieties are a good middle ground between cost and energy efficiency; triple-pane windows provide the most sound and temperature insulation at a higher cost.
Triple-pane windows are a great option if you’d like to reduce street noise or heat from the sun entering your home, according to Matt Gibson, the director of marketing for Cornerstone Building Brands, who’s based in Chester Springs, Pennsylvania.
The table below shows the pricing differences between double-pane skylight windows with different glass types. These figures are from Lowe’s.
| Glass Type | Cost per Window |
|---|---|
| Impact | $75–$1,896 |
| Tempered | $154–$1,355 |
| Laminated | $154–$2,794 |
| Low-e with argon gas | $310–$1,946 |
Number of Windows Installed
The number of windows you purchase will also contribute to the total cost of your project. Generally, the more windows you need, the higher the project cost. If your home has many windows and you’re concerned about cost, consider replacing several windows at a time.
You should replace the worst-performing windows first and address the remaining ones later, according to Mark Waddell, the installation and application manager of Cornerstone Building Brands, who’s based in Rocky Mountain, Virginia. “To this same end, understanding the total cost of the project versus the value of the overall investment can help in decision-making,” Waddell added.
The table below highlights the average amount respondents reported paying for their window replacement project by the number of windows they purchased. We sourced this data from our October 2023 window replacement survey of 1,500 homeowners who purchased windows within the last five years.
| Window Material | 1–5 Windows | 6–10 Windows | 11+ Windows |
|---|---|---|---|
| Aluminum | $10,566 | $14,966 | $24,643 |
| Vinyl | $10,643 | $12,249 | $22,547 |
| Wood | $10,036 | $14,940 | $23,300 |
Window Size
Insulated glass typically costs between $10 and $20 per square foot. Your double-pane window’s size will significantly affect your costs. Because smaller windows take fewer materials and less time to install, their material and labor fees will be lower, and vice versa.
You can expect to pay more for double-pane windows with custom dimensions. Custom-size windows of any kind have costlier manufacturing processes, leading to higher retail prices. Custom dimensions may also yield a more difficult installation process, which will further increase prices.
To get a better idea of how window size affects costs, we’ve listed prices for double-pane casement windows by size:
| Insulated Window Size (Ft.) | Average Cost |
| 2 x 2 | $410 |
| 2 x 3 | $480 |
| 2 x 4 | $550 |
| 2 x 5 | $625 |
| 3 x 5 | $660 |
| 3 x 6 | $880 |
| 4 x 4 | $975 |
| 4 x 6 | $1,065 |
| 5 x 4 | $1,115 |
| 6 x 4 | $1,160 |
| 6 x 5 | $1,310 |
| 7 x 5 | $2,020 |
| 8 x 5 | $2,855 |
Additional Factors Impacting the Cost of Double-Pane Windows
While the windows themselves comprise a large portion of the final cost, you should also consider other aspects of the process. Labor, brand, season, and required permits can affect the final cost of your home improvement project. You must allocate extra for these factors and unexpected issues that can arise during the installation process to ensure you budget accordingly.
Installation and Labor
A professional window installation company’s labor rates will make up a significant portion of your double-pane window replacement costs. Depending on the type of window, installation typically costs between $50 and $200 per hour. More complex installations for skylights, egress windows, and bay windows can reach up to $240 per hour.
However, window installation labor rates can also vary based on your location. Expect to pay more per hour in a large metropolitan area — such as New York City — than a small town. The larger your project is, the more you’ll pay in labor as well.
The window installation method you go with is one of the biggest cost factors aside from the window itself. Generally, you can choose from two types of window replacements: full-frame and pocket replacements. Full-frame replacements replace the entire window and frame, while pocket replacements only replace the window. Typically, full-frame replacement costs more due to the extra labor and materials required to complete the job.
However, you likely won’t have a choice of which window replacement method to use, said Ricks. Your home’s construction type and style, as well as your windowsills’ conditions, will dictate which type of replacement you should choose, he added.
Ricks said that most newly constructed homes will likely require pocket replacement, which costs less due to the reduced labor required to install them correctly.
Brand
Like with most products, certain window brands are pricier than others. Double-glazed windows are widely available but come in a range of prices. Some brands offer standard-size double-pane windows for less, while other brands offer premium, custom-designed windows for more.
Permits
Before installing or replacing windows in your home, check local building codes. Many areas require a permit before installing new windows, which can add $200–$500 to your project. Permit costs are usually included if you hire a professional for the installation, but double-checking beforehand won’t hurt.
Project Size
The number of windows and project scope will affect the overall cost. For example, if your home is a single-story ranch, it will take less time to replace the windows than it would for a two-story house. Additionally, your window installation project might involve repairing one broken window or completely replacing your home’s existing one.
Some window dealers require a minimum purchase, but once you surpass this limit, you can take advantage of various promotions and rebates to cut costs. Discounts aren’t available from every window dealer, but you should definitely shop around for the chance to revamp your home’s windows for less.
Time of Year
Like many professions, window installers have busy seasons and slow seasons. Given the fluctuation in business, it can be more expensive to overhaul your windows at certain times of the year. Most window installers are busiest during spring and fall and may have a slower period during the summer and winter.
Costs rise as demand increases, and installers can be stretched thin between dozens of projects. If you decide to install your windows in a busy season, you may hit a higher cost range than if you complete the project during the offseason.
Projects take a long time, especially if the windows have to be 100% fabricated. We recommend looking into replacement windows when there is less natural light and the days are shorter (during the winter) in order to have an installation during the summer, when the days are longer.
What Are the Benefits of Double-Pane Windows?
Incorporating dual-pane windows into your home can reap numerous benefits, such as fewer condensation issues, better insulation, superior soundproofing, and lower energy costs.
Fewer Condensation Issues
Condensation is an ever-present concern for single-pane windows. It signifies the window seal deterioration that allows moisture and air to seep in. When these tiny droplets of moisture appear, it’s usually time for a new window because the seal isn’t doing its job.
Condensation concerns drop drastically with a well-installed, adequately sealed, energy-efficient double-pane window. Between the tight seals and careful installation, condensation concerns become a thing of the past as long as the seal remains intact.
See our guide on double-pane windows condensation removal for a more detailed explanation.
Improved Insulation
Improved insulation is one of the most notable perks of double-pane glass windows. According to the United States Department of Energy, inefficient windows contribute 25% to 30% of energy loss in annual heating and cooling costs for an average residential home.
These energy-efficient windows help trap in warmed or cooled air throughout the year, ensuring your home remains as comfortable as possible — a major benefit for homeowners in extremely hot or cold climates. The HVAC system doesn’t need to work as hard to maintain a stable temperature, which will be reflected in a lower utility bill.
Superior Soundproofing
In addition to energy efficiency, better insulation, and limited condensation issues, double-pane windows offer superior soundproofing. Compared to old, single-paned windows or those with loose panes, these windows provide excellent sound insulation.
Loose-paned windows can transfer sound vibrations from outside conversations, construction, traffic, and emergency sirens into your home. Double-pane windows offer better sound insulation and absorption, ensuring your home stays quiet and you remain undisturbed by the activity around your home. Find more information in our guide to soundproofing your windows.
Added Durability
Double-pane windows offer a second layer of safety and durability with dual sheets of glass. Although the glass can break, impacts may only break the first layer, leaving the second pane intact. The added durability of these windows makes them well-suited for safety and security, as a broken window doesn’t necessarily leave your home open to intruders or a draft from the outdoors.
Do Double-Pane Windows Have Any Drawbacks?
Although double-pane windows offer extensive perks, they aren’t without drawbacks. While switching to them can lead to a significant drop in utility bills, the switch is pricey — especially if you go all-in. You might not notice any difference in your utility bills if you only switch one or two windows, so committing fully is essential if you expect to see a drastic difference.
In addition to the steep price tag, window repair can be challenging. If everything remains intact, you shouldn’t have issues with factors such as condensation. However, if the seal is compromised or a problem develops with the air gap between the panes, you may see heat loss, insulation issues, and condensation problems.
Unfortunately, glass replacement is usually necessary when these issues develop, as repairs are often complicated and expensive. Read our guide to repairing broken window glass to learn more about this process.
Triple-Pane Windows Vs. Double-Pane Windows
Triple-pane windows feature three panes of glass separated by gas-filled gaps — much like dual-pane windows.
Double-pane windows are a step up from their single-pane counterparts, but if you want to take things further, you could choose triple-pane windows. These windows offer many of the same benefits as double-pane windows, although with extra benefits that give them an edge over double-pane options.
For example, double-pane windows provide better insulation than single-pane windows, but triple-pane windows blow both out of the water with maximum energy efficiency. In addition, triple-pane windows offer better noise reduction, ensuring your home remains comfortably quiet.
However, these benefits come at a cost. Triple-pane windows are considerably pricier than double-pane options — sometimes over $40 per square foot — so expect a lofty bill if you choose them.
Average Cost for Triple-Pane Windows
The benefits of triple-pane windows aren’t cheap, especially compared to single-pane or double-pane window pricing. A triple-pane window costs about $1,000 per unit or between $400 to $3,000 for each window.
Of course, the exact project cost for upgrading your whole home to triple-pane windows hinges on various factors, including the frame material, labor costs, and sizing.
DIY Vs. Professional Double-Pane Window Installation
Some window installations are straightforward enough for handy DIYers to handle themselves. However, other installations are much more complex, requiring a professional’s expertise.
We highly recommend hiring a professional if you have little to no experience installing windows. Installing windows correctly involves many measurements and steps; incorrect installation can cause all sorts of future problems. On the flip side, a reputable window installer usually includes some form of a labor warranty.
The route you choose will significantly impact the cost of your installation, as DIYing the project eliminates extra costs for labor. If you outsource the project to a professional, you can expect to pay an average of $50 to $200 per hour. It’s important to note that complicated or oversize window installations will cost more due to longer installation times.
You can also inquire about the replacement cost for window glass by contacting local window service providers or contractors in your area. This way, you can gather more detailed information and make an informed decision about your window replacement project.
How Can You Save on Replacing Double-Pane Windows?
While double-pane window replacement can be a pricey home improvement project, you can purchase these windows without breaking the bank. Below are some tips to help you save.
- Get multiple quotes: Requesting quotes from different window brands ensures you find the best deal for your window needs. Request quotes from at least three companies for better leverage when price matching.
- Find rebates and tax incentives: Check with the window company to see whether it offers any rebates on its windows. ENERGY STAR has a tax rebate that provides up to $600 back in tax credits if you purchase ENERGY STAR-certified windows.
- Consider partial replacements: If you have many windows to replace, consider replacing them in small batches to reduce the total project cost.
- Ask for discounts: Many window brands, such as Champion Windows, have sales or discounts for certain window lines at various times throughout the year. In addition, ask whether the company will offer a wholesale discount if you purchase many windows.
- Shop during the offseason: The peak of summer and winter are typically the offseasons for window replacement companies because of lower demand and challenging weather conditions. Some companies may install windows at a reduced rate if you hire them during these seasons.
Signs You Need To Replace Your Double-Pane Windows
Below, we outline a few of the most common signs indicating you need to replace your double-pane windows to increase energy savings.
- Broken glass or frame: This is the most obvious sign indicating that you must replace your double-pane windows. Broken window glass or frames won’t insulate properly, which can significantly increase your energy bills and reduce the safety of your home.
- Difficult to open or close: Another reason to replace your double-pane windows is stubborn windows that are difficult to open or close. If you own double-hung windows, they should slide up and down smoothly and with minimal effort. If you own casement windows, they should easily open fully and not get stuck.
- Excess wear: Windows with excess wear or an unappealing appearance may require replacement since they likely don’t insulate properly. In addition, replacing these worn windows with new ones will increase your home’s curb appeal.
- Leaks: If your existing windows have a draft or leak water, it’s a good time to check your windows’ caulking. If your window’s weather insulation is in poor condition, we suggest repairing it versus replacing the entire window if you’re on a tight budget.
Are Double-Pane Windows Worth the Cost?
Double-pane windows are the best bang-for-your-buck window varieties due to their balance of cost and overall energy efficiency. Their two glass panes increase their durability and insulating properties while letting in plenty of natural light.
Of course, investing in a whole set of double-pane windows can be expensive, so expect to budget for considerable replacement costs. However, your new windows will offer excellent sound reduction, superior insulation, and extra energy efficiency, making them well worth the investment.
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This site receives compensation from the companies featured in this listing, which may impact where and how products appear. This listing doesn’t feature all companies, products, or offers that may be available.
FAQs About Double-Pane Glass Costs
Double-pane windows can make a considerable difference, especially if your current windows are old or faulty. Insulated glass windows trap heated and cooled air in your home, which prevents your HVAC system from working overtime to stabilize indoor temperatures.
ENERGY STAR-certified double-pane windows offer an average of 12% household energy savings. So if you’re seeking lower energy bills, keep an eye out for this certification.
If your home currently has single-pane or old, worn-out windows, replacing them with high-quality double-pane windows can be a worthwhile upgrade. They offer better sound reduction, energy efficiency, and insulation, making them worthwhile. However, the decision is entirely yours, as they’re a pricey investment.
Double-glazed windows contain an insulative krypton or argon gas layer that reduces thermal transfer through the window. These gasses are clear, nontoxic, and odorless, so escaped gases due to broken glass won’t pose a threat.
Yes, double-pane windows reduce sound depending on the window type you currently have. If you’re upgrading from old, loose, single-pane windows, double-pane products reduce sound from the outdoors more. Their design offers better sound reduction, as it reduces the transfer of noise vibration from activities outside your home.
Double-pane windows are a worthwhile investment for homeowners with old, loose, or drafty windows. Double-pane windows are an excellent middle-ground option between single-pane and triple-pane models. They provide better energy efficiency and sound reduction than single-pane windows at a lower price than triple-insulated glass units.
