Cost of Double-Pane Windows | 2024 Guide
Typical costs range between $280 and $1,500 per window.
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Double-pane window costs typically range from $280 to $1,500 per window, but many homeowners will pay around $900 on average. Prices depend on size, style, materials, and other factors that we will explore in detail in this guide. Double-pane windows help with energy efficiency by trapping air between two panes to create extra insulation. This makes your home more comfortable and less reliant on artificial heating and cooling, by keeping hot air out during summer and warm air in during winter.
Note: Article cost data sourced from Angi, Fixr, and Home Advisor.
Average Double-Pane Window Cost
Double-pane windows cost an average of $900 each to buy and install. Your price may vary depending on the style, size, and window quantity.
- Window sizes: The larger the window, the more you’ll pay. You can generally expect to pay $250 to $700 for a standard double-pane window, which is 24 inches wide by 48 inches tall.
- Window style: Decorative or intricately etched windows are more expensive than standard options. Window coatings are another feature that can increase window replacement costs. Low-emissivity (low-e) glass and argon gas fillings are two popular coatings that offer additional insulation.
- Window quantity: The more windows you need, the higher the cost. Any extra features you choose to add will likely increase your labor and overall project cost.
Cost by Window Size
Smaller windows tend to be less expensive than larger ones. However, the total price also depends on your selected glass and frame type.
Small double-pane windows measure about 12 inches by 24 inches and can range from $300 to $750, including installation. These sizes are typically for basement windows or a decorative touch in kitchens.
Medium double-pane windows are roughly 24 inches by 36 inches and cost between $400 and $1,850 for professional installation. These types of windows can be found in most household rooms.
Large double-pane windows, such as picture windows or garden windows, can cost anywhere from $650 to $4,500 when installed. These windows are usually 6 or more feet wide and are often used as decorative features.
Cost by Window Style
Many homeowners replace their current windows with a different size or style, which can drastically increase window prices.
| Window Style | Description | Cost (Installed) |
|---|---|---|
| Casement | Casement windows have a hinge and swing outward when opened. | $300–$850 |
| Picture | This large, fixed window doesn’t typically open, instead highlighting outdoor views. | $400–$950 |
| Double-hung | Double-hung windows open from both the top and bottom, maximizing ventilation. | $400–$3,250 |
| Slider | Slider windows have one fixed panel and one that slides side-to-side along a track. | $450–$1,500 |
| Bay/bow | Bay windows are large, three-panel constructions that extend out from your home. | $780–$2,920 |
Cost by Window Quantity
It’s typically more cost-effective to install multiple windows rather than one or two, as bulk orders decrease the cost per window. Installing 15 windows can range from $6,750 to $15,000, while installing 25 windows could run $10,500 to $23,750. Window companies sometimes have a minimum installment requirement regarding the number of windows.
Labor Cost
The labor cost to install double-pane windows depends on the windows’ size, quantity, and type. Most installers charge $40 to $75 per hour. Using that figure, homeowners should budget $150 to $300 per window for labor. In some cases, companies may also offer a flat rate for window installation that includes both materials and labor costs.
Other Potential Cost Factors to Consider
The cost to install a double-pane window goes beyond paying for the required materials and labor. You may also have to replace the frame, pay for a window coating, or even upgrade your glass type.
Existing Frame vs. Full-Frame Replacement
Swapping out the glass in an existing window frame is more affordable than full-frame replacement. You can do this if your windows are still in good condition and you’re simply looking to upgrade the glass. Be aware that the contractor may need to make minor adjustments to fit the new glass windows into your existing frames.
Full-frame replacement is more expensive but offers some advantages. It involves removing your old window frame and installing a brand-new frame with double-pane glass. Full-frame replacement eliminates any issues with fitting your new glass into your existing window frame, as the new frames will be custom-built for your window.
You can choose any window frame style for full-frame replacement. This can be a great option if your old frames are outdated or damaged and you’re looking for an upgrade.
Window Coatings
Window coatings are an important part of energy efficiency and heat deflection. They help reduce the amount of ultraviolet (UV) light that enters a room. They also limit the amount of solar energy or heat that’s transferred through the window. Coatings can also provide privacy, reduce glare, and add insulation.
Low-emissivity (low-e) coatings are designed to reduce the amount of UV light and solar heat that enters a room while allowing visible light to pass through. These coatings are generally clear, meaning you won’t see any difference in color when looking at them from the outside. Low-e coatings add 10% to 15% to the window’s price.
Tinted film coatings are designed to reduce solar heat by blocking some of the sun’s energy before it enters the window. This type of coating is typically darker than low-e coatings, making it ideal for windows with extended direct sunlight exposure. Tinted film window coatings cost $5 to $15 with installation.
Frame Material
Your window frame helps determine its insulation rating, durability, and longevity. The frame material may depend on the brand, as certain brands use specific frames. The most common frame materials for double-pane windows are wood, vinyl, aluminum, fiberglass, and steel.
Wood window frames are typically strong and durable, but they tend to require regular maintenance such as scraping and repainting. Vinyl frames are often less expensive and require less maintenance, but aren’t as strong as other materials.
Aluminum and steel frames offer good strength-to-weight ratios, but they’re prone to condensation and rust. Fiberglass is more durable and energy-efficient than other materials, but may come at a higher cost.
| Material | Cost per Window |
|---|---|
| Vinyl | $150–$1,200 |
| Aluminum | $200–$1,200 |
| Fiberglass | $300–$2,000 |
| Wood | $300–$3,000 |
| Steel | $500–$5,000 |
Glass and Fill Type
Windows come in many styles and types. Even the glass differs from window to window. Common types of window glass include annealed, tempered, laminated, and gas-filled.
Also known as float glass, annealed glass is the most common and least expensive type of glass used in double-pane windows. It’s produced by quickly cooling molten glass, creating a strong and durable window. It’s affordable, strong, and durable, though it will shatter if broken.
Laminated glass is produced by sandwiching a thin layer of plastic or resin between two pieces of annealed glass. This creates a window that is much more resistant to breakage, impact, and sound.
Another popular option is toughened glass (or tempered glass). It’s produced by heating the glass to its softening point, then rapidly cooling it. This process creates a stronger and safer glass that’s up to four times stronger than annealed glass. It’s also more resistant to thermal shock and breakage.
Some windows have gasses inserted between the two panes of glass. These gasses have higher insulating properties than air and can help reduce the transfer of heat and sound. The most common window fill is air, but other gasses can be used such as argon, krypton, or xenon.
| Glass Type | Benefits | Cost per Square Foot |
|---|---|---|
| Annealed glass | Strength and durability | $3–$6 |
| Laminated glass | Strength, sound insulation, and resistance to breakage | $10–$20 |
| Tempered glass | Strength, safety, and durability | $12–$14 |
Window Brands
Popular window brands such as Andersen, Marvin, Pella, and Feldco offer a range of window options. Some brands even feature customizable sizing that can be made to fit most window frames. Companies also specialize in different types of window frame material, such as wood, vinyl, or aluminum.
Products from these top brands can range from $150 to $4,000 per window. Andersen and Marvin offer more expensive but higher quality windows with excellent energy efficiency ratings, while Pella and Feldco offer slightly more affordable window replacement alternatives.
Benefits of Double-Pane Windows
Increased Insulation
Double-pane windows prevent external air from entering the home, mitigating how hard air conditioning systems have to work.
Reduced Noise
Double-pane windows provide a layer of separation from the outdoors, creating a buffer from street noise.
Energy Efficiency
Double-pane windows offer increased energy efficiency. According to HomeAdvisor, homeowners who installed double-pane windows reduced their energy consumption by 24% in winter and 18% during summer.
Increased Home Value
In a survey from Zillow, 56% of buyers named energy efficiency as a must-have for their new home. Thus, double-pane windows are a great selling point when putting your home on the market.
Professional vs. DIY Double-Pane Window Installation
When hiring a professional, seek out high-quality installers that can follow the manufacturer’s instructions. This ensures a safe and correct installation. Additionally, many professionals offer warranties to protect your investment.
Still, hiring a professional is more costly than doing it yourself—provided you have the skills and knowledge to install a window correctly. If you’re not sure about your abilities, do plenty of research before starting your window replacement project. Additionally, make sure you have access to the right tools and materials, such as safety glasses, gloves, caulk, and screws.
Professional Double-Pane Window Installation
Window installation is a delicate and precise process, and even small errors can create significant problems. That’s why hiring a professional is usually the best and most affordable approach.
By having experts in the field handle the job, you can rest assured that your windows will be properly installed and sealed. In addition, professional installers typically use higher quality materials than what’s available to a do-it-yourselfer (DIYer). This ensures the windows will last longer and perform better.
Professional installers usually charge $150 to $250 per window, but you should request a free quote before signing a contract.
DIY Double-Pane Window Installation
DIY double-pane window installation can save you money on labor, but material prices add up quickly. In addition to tools such as a power drill, pry bar, and caulk gun, you need to purchase consumables such as glass, insulation, and caulking.
Installing a double-pane window means removing the old window while preserving the trim. If the frame has rotted or deteriorated, you’ll need to repair or replace the frame. Only then can you insert the new windows.
How to Hire a Professional
Here are some tips for finding a reputable window installer.
- Do research:
Read customer reviews and feedback, compare estimates, and find out what the installer’s experience and specialties are. - Check for insurance and a license:
Make sure you hire a licensed contractor who’s experienced with double-pane window installation. - Evaluate costs:
Ask about any additional fees and get a detailed cost breakdown of the entire project. - Ask about the warranty:
Make sure the contractor offers a warranty for their work, including parts and labor. - Inquire about the process:
Ask the contractor about any preparations that need to be done before installation, such as removing existing windows or fixing structural issues. - Consider the timeline:
Get a realistic date for the project’s completion. Ask what happens if the deadline is not met.
Our Recommendation
We recommend investing in double-pane vinyl windows with low-e coatings, multiple chambers, and argon gas between the panes. This type of window provides superior insulation, keeping your home more comfortable year-round and saving you money on energy bills.
When properly fitted, double-pane windows offer reliable and effective energy savings. Unless you’re an experienced DIYer who will be replacing your old windows for new ones, you should hire a professional to do the job.
Double-Pane Windows FAQ
How many windows can you get installed at a time?
A qualified window installer needs about 30 minutes per window, meaning they can install 10 to 15 windows per day.
What is the best type of double-pane window to install?
The best type of double-pane window to install depends on your budget and needs. A qualified contractor can help you select the right type of replacement windows for your home and make sure they’re installed correctly.
How often should windows be replaced in a home?
Home window seals start to weaken or fail after 15 to 20 years, allowing drafts and water to seep through. If you notice a gap near your windows seal, it may be time to ask for a professional evaluation.
How much more efficient are double-pane windows?
According to HomeAdvisor, a double-pane window can reduce energy consumption by 24% in winter months and 18% during summer months. To realize these energy savings you must replace all your old and failing windows.