How Much Are Casement Windows?
Most homeowners pay somewhere between $450 and $1,000 to install a single casement window. About 40% to 60% of that total goes toward materials, which means your unit cost averages between $180 and $600. Casement windows are more expensive than most other styles, largely because the opening mechanism is complicated and costly.
The size of your casement window is one of the biggest factors affecting material costs. It can also affect labor costs. Larger casement windows may require multiple technicians to maneuver and install, potentially doubling or tripling your labor costs.
Casement window costs by materials and features
Frame materials, glass options, glass upgrades and installation complexity can all affect your costs. Here’s what you can expect to pay at different quality levels.
| Quality level | Average cost | Features |
|---|---|---|
| Budget | $300 to $900 | Aluminum or vinyl frame, double-pane glass, budget brand, limited warranty |
| Average | $450 to $1,000 | Aluminum or vinyl frame, double-pane glass, midtier brand, good warranty |
| Luxury | $950 to $1,900 | Fiberglass or composite frame, triple-pane glass, premium brand, excellent warranty |
Factors affecting the cost of installation
Many factors can influence your casement window installation costs, including material and labor. Consider all of the following to get an idea of where in the above ranges your total will fall.
Window size
The size of your casement window plays a key role in pricing, with larger windows driving up both material and labor fees.
Oversized casement windows, or casement windows that are part of a bay or bow window, require more frame and glass materials, and the installer you choose may need multiple technicians and specialized equipment to maneuver large, bulky casement windows into place, which can drive labor costs even higher.
Standard vs. custom sizes
Choosing a standard casement window size and shape usually means you can buy windows in stock rather than a custom-ordered one. Standard sizes benefit from mass production, so you’ll pay significantly more per window and face longer wait times if you need custom windows.
Frame material
The frame material you choose can create price swings of between $500 and $700 per window. Aluminum and vinyl are the most affordable options. Fiberglass and composite are the most expensive, but also the most energy-efficient. Wood falls somewhere in the middle.
Glass upgrades
You could pay anywhere from $225 to $500 extra per casement window to upgrade your glass for better energy efficiency, sound dampening and overall performance. These upgrades can be useful in extreme climates, but keep in mind that casement windows are the most energy-efficient operable windows, so you may not need them.
Full-frame vs. insert installations
Full-frame window replacements are the most common, and they involve removing the entire window to expose the surrounding studs before installing a new one.
You could save money by choosing an insert window replacement, also called a pocket window replacement, which leaves the frame in place and replaces the material inside the frame. However, this isn’t a good option if you suspect you have hidden leaks or frame damage.
Replacement vs. new construction windows
Installing a casement window in a new-construction home is usually more affordable than replacing an existing one for two reasons.
First, your tech won’t need to remove and replace siding, flashing or interior trim to access the window, reducing the amount of work required. Second, most new-construction projects include all windows, and most manufacturers and installers offer a small per-window discount for bulk orders.
Window location
Installing a window on the second floor of your home is always more challenging because your techs will need ladders and safety equipment. In some cases, they’ll need to use window lifts for larger casement windows. Expect to pay an additional $50 to $150 per casement window for a second-story installation.
Geographical location
Where you live can affect labor costs. You can expect to pay $180 to $600 per casement window for labor alone, with higher costs possible in expensive areas such as major cities. In extreme climates, you may also spend up to $500 more per window on energy-efficiency upgrades, which can pay for themselves over time, especially in hot climates.
Permits
In some cases, especially if you’re replacing windows as part of a larger home improvement project, or you’re resizing your existing windows, you’ll need permits to keep the work legal. Permits add an average of between $100 and $400 to your total.
Removal and disposal
You may also pay extra to remove and haul away your old window before installing the new one. The best window companies include this in their initial estimate, but expect to pay an extra $50 to $100 or more per window if your pro charges separately for this service.
Hidden damage
Your window installer may find hidden water damage from leaks or even structural damage when they remove your old window.
You may need to budget an additional $100 to $400 for minor water damage (or more if the leak was ongoing), or between $300 and $1,200 to repair structural damage. Unfortunately, these are difficult to estimate until your pro removes your window and exposes the area behind the frame.
Casement window costs by frame and glass material
Casement window material costs usually range from $180 to $600 each, but they can fall outside that range based on a few factors. Consider both frame and glass materials to get a better idea of your total window installation cost.
Casement window costs by frame material
Use the table below to get a more accurate estimate for your window unit if you’re looking to upgrade for improved performance.
| Casement window frame material | Average cost per window | Pros | Cons |
|---|---|---|---|
| Aluminum | $400 to $900 | Affordable, resists warping | Short 15- to 20-year lifespan, lower energy efficiency |
| Composite | $600 to $1,200 | Energy efficient | Performance varies, expensive |
| Fiberglass | $700 to $1,500 | Highly energy-efficient, lasts up to 40 years | Very expensive |
| Vinyl | $300 to $800 | Good value, lasts up to 40 years | Can warp in extreme heat, difficult to paint |
| Wood | $800 to $1,500 | Attractive, repairable, energy-efficient | Prone to rot, expensive |
Casement window costs by glass material
Also consider the glass materials you want and match them to your local climate.
Double-pane glass is standard, but you can upgrade to triple-pane for improved energy efficiency and sound dampening. Other upgrades and coatings can add benefits, but they will increase your window replacement costs.
These upgrades are generally priced per window, so your added casement window costs should fall within the ranges below. Oversized windows may cost more.
| Upgrade type | Added cost per window | Benefits |
|---|---|---|
| Double-pane glass | Standard glass option; no additional fee | Best value, good value for most climates |
| Triple-pane glass | $100 to $200 | Better energy efficiency and sound dampening; ideal for extreme climates |
| Low-E coating | $50 to $150 | Reduces heat transfer; ideal for extreme climates |
| Window tinting | $75 to $150 | Reduces solar heat gain, UV exposure and fading; ideal for sunny climates |
| Frosted glass | Varies widely | Adds privacy while allowing natural light |
Replacement costs for multiple casement windows
Replacing a single casement window costs between $450 and $1,000. But in most cases, you’ll get discounts on both materials and labor for bulk orders if you replace five or more windows. Manufacturers and window installers typically offer a 10% to 15% discount per window when you order in bulk.
The average home has 10 to 12 windows, and replacement costs for this many casement windows typically range from $4,500 to $12,000. With a bulk order discount, you could save between $450 and $1,800.
Keep in mind that most homes have a mix of window types, so your costs will vary based on the windows you need to replace. It’s rare for a home to only have casement windows.
Casement window replacement costs by project size
Replacing multiple windows at once can lower your average cost per window. Use the table below to estimate your total project cost based on the number of casement windows you plan to replace.
| Number of casement windows | Low end | High end | Average cost per window |
|---|---|---|---|
| 1 | $450 | $1,000 | $725 |
| 5 | $2,025 | $4,500 | $653 |
| 10 | $3,825 | $8,500 | $616 |
| 15 | $5,738 | $12,750 | $616 |
What your window replacement quote should include
Whether you’re replacing a single casement window or multiple windows, look for the following in your estimate:
- A breakdown of material costs and labor costs
- Information on your new window, including brand, dimensions, frame material and glass materials/upgrades
- Warranty information, including the manufacturer’s warranty and labor warranty specifics
- Standard line items, which include the following:
- Removal of your old window
- Haul-away services for your old window
- Installation of the new window
- Shimming and leveling
- Spray foam insulation inside
- Flashing and caulking outside for a good seal
- Restoration of your siding and trim
FAQ
What is the downside of casement windows?
The main downside to casement windows is that they’re more expensive than other standard options, like double-hung, single-hung and slider windows. The opening mechanism is complex and internal. Casement windows also open outward, so they can stick out into exterior areas, which can be inconvenient if they sit next to where people gather outdoors.
Are casement windows more expensive than double-hung windows?
Yes, casement windows are typically more expensive than double-hung windows. On average, you’ll spend between $450 and $1,000 per casement window, whereas a double-hung window averages between $400 and $900.
However, casement windows are more energy-efficient, so you could make up the difference over time on heating and cooling bills.
Do casement windows add value to a home?
Yes, casement windows can add value to your home. Windows play a key role in your home’s curb appeal, and replacing them can instantly give potential buyers a better first impression. Casement windows are particularly valuable because they maximize natural light and ventilation, and they’re the most energy-efficient operable window style.
Can I install casement windows myself?
It’s technically possible to install casement windows yourself, but it’s not a good idea.
It’s easy to make minor mistakes that lead to water and air leaks down the road, both of which can cost you more than you’d save on labor by doing it yourself. Not hiring a certified pro can also void your warranty, and you may run into additional issues if you discover hidden damage and can’t fix it yourself during the window replacement process.
Bottom line
Most homeowners pay somewhere between $450 and $1,000 to install a new casement window, but prices can range from $300 to $1,900 or more, depending on frame material, glass options, window size, location and more. Always get a formal, written estimate from a local window installer to get an accurate idea of what your specific window project will cost.
Article sources
ConsumerAffairs writers primarily rely on government data, industry experts and original research from other reputable publications to inform their work. Specific sources for this article include:
- International Association of Certified Home Inspectors, "InterNACHI's Standard Estimated Life Expectancy Chart for Homes." Accessed Sept. 14, 2026.
- Office of Energy Efficiency and Renewable Energy, "Guide to Energy-Efficient Windows." Accessed Sept. 14, 2026.
- U.S. Department of Energy, "Consumer Guide to Energy-Efficient Windows." Accessed Sept. 14, 2026.
- U.S. Department of Energy, “Measure Guideline: Energy-Efficient Window Performance and Selection.” Accessed Sept. 14, 2026.
