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Cost of Replacement Casement Windows

Casement windows are a popular option within the home. Hinged on the side rather than at the top or the bottom, casement windows open outward to allow for maximum ventilation even when there is limited space in the interior of the home. While many casement windows are durable and designed to last for decades, occasional replacement is still a necessity. This guide can be used to discover when replacement is necessary, the pros and cons of casement windows, the various materials used in the construction of replacement casement windows and what facts will be helpful to know when it comes to installation.

The Costs

  • Average Minimum Cost of Replacement Casement Windows: $150

  • Average Maximum Cost of Replacement Casement Windows: $750

How to Tell That Casement Window Replacement is Necessary

Despite the durability of casement windows, homeowners should still be on the lookout for signs that replacement is necessary. Storms, strong winds and hurricanes may cause significant damage in a matter of hours, and replacement is a smart way to prevent any more damage from occurring after the fact. However, some of the other signs that replacement casement windows are required can be less obvious. Signs to watch for include the following:

  • Drafts within the home

  • Rising energy costs due to increased heating and cooling

  • Damage to the walls surrounding the casement window frames

  • Rotting or soft casement windows

  • Stains and discoloration that hint at water damage

Advantages of Casement Windows

Even if homeowners already have existing casement windows, they may be on the fence about replacing them with similar models or switching to a new window type. Casement windows have a number of wonderful advantages, and among them are energy efficiency, ease of opening and closing, the full ventilation that these windows offer and the fact that they can be securely locked for safety. Since casement windows swing out and open completely, they are one of the most effective options for creating a breeze in the home and allowing in plenty of fresh air. In addition, the variety of design features available for casement windows lets homeowners personalize the look to get a style that fits in with their home design.

Disadvantages of Casement Windows

Casement windows have numerous advantages, but they also bring with them a few disadvantages. Homeowners may not appreciate the added expense of casement windows, their inability to hold window air conditioning units and the limited size availability of the window. While casement windows are not prohibitively expensive and come in a variety of materials to better fit a budget, they are still more expensive than most single-hung windows of the same size. Because of their unusual design, casement windows are not suited to air conditioning units, nor can they accommodate fit-in window screens that may look good in other window types.


When buying replacement casement windows, homeowners will be able to select from a variety of different window materials. One of the most popular choices is vinyl. Casement windows made from vinyl are very easy to clean, durable and affordable. One of the best things about this window material is that vinyl comes in many colors that won't fade or peel over time. However, drawbacks to vinyl casement windows include the fact that they can't be painted and may not be aesthetically appealing to some individuals. 


Another popular material used in the construction of casement windows is wood. Wood casement windows are very attractive, and they add a level of warmth and elegance to both the interior and exterior of the home. They can be sanded, stained and repainted at any time, but maintenance can be time-consuming, especially in particularly wet or humid climates. While wood casement windows are certainly beautiful, they are one of the more expensive materials on the market, and the significant investment may not fit into the budget of every homeowner.


Replacement casement windows made from aluminum are a great option for homeowners looking for strength and practicality over aesthetics. Aluminum is a lightweight material by nature, but it is still incredibly strong and durable. However, there are drawbacks to purchasing aluminum replacement casement windows. This material is not a good insulator, and it transfers temperature easily. This translates to potentially greater heating and cooling costs. In addition, aluminum may not be the best choice when it comes to curb appeal from the exterior of the home or elegance inside the home.


One of the newer replacement casement window materials is fiberglass. Those in search of an attractive, versatile and energy-efficient casement window material certainly won't be disappointed in fiberglass. Although this is a relatively new option on the market, it has the potential to last for decades without replacement and with very little in the way of maintenance. The biggest disadvantage of fiberglass for replacement casement windows is the price, which can rival and even potentially surpass the cost of wood casement windows.

Choosing Glass

While much attention is given to the materials that make up the frames of replacement casement windows, the glass panes inside are also important. Many replacement casement windows come complete with glass, so buyers should know what kind of panes will go best in their home. Things to look at when selecting glass panes for casement windows include:

  • Noise insulation

  • Number of panes

  • Glazing

  • R-rating for reduction of passive solar gain

  • Temperature insulation for lower energy costs in the home

What to Know About Installation

Generally, homeowners won't try to install replacement casement windows on their own as it can be a big job that involves lifting heavy window frames. Those who do tackle this job, however, might want to look for windows with predrilled holes, which allow for installation inside or outside of the home. Otherwise, a homeowner should be prepared to pay somewhere between $50 and $190 to have a replacement casement window installed.

Last updated on Apr 17, 2014

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