How much does it cost to install a storm window?

Reviewed by Cristina Miguelez remodeling expert. Written by Fixr.com.

Storm windows are a less expensive alternative to replacement windows for homeowners concerned with energy costs. Storm windows insulate existing windows, stop airflow and energy transfer, and are most useful when installed over single-pane windows. This improves comfort in the home and reduces heating and cooling costs. Storm windows come in many types, which impact the project’s final cost. And as with all window installations, installing storm windows should be left to a professional.

The national average cost to install storm windows is between $2,000 and $5,000, with most homeowners spending approximately $2,800 on 8-double track exterior storm windows with vinyl framing and Low-e coating glass, installed. At the low end of the spectrum, a simple set of 6 standard aluminum storm windows can be professionally installed for around $1,000. At the high end of the cost range, a set of 10 wooden-frame, triple-track storm windows with insulated panels and a Low-E coating costs approximately $7,000.

Storm Window Installation Prices

What Is a Storm Window?

Storm windows are specially made windows that fit inside or outside the home’s main glass windows. They can be made from various materials and have different tracks and frames, and they were originally designed to offer extra protection against storms and harsh weather conditions. They also provide additional insulation for a home, preventing heat loss in the year’s cooler months, reducing utility bills, offering more security, and blocking noise.

Custom vs Prefab Storm Windows Price

If you choose to have custom storm windows made, you can expect to spend between $100 and $1,000 per window. Several variables are involved in custom window sizing, making it harder to narrow down the cost range of these windows compared to standard pricing. You can note that if you choose customization, it will add about 50% to 200% to the standard window prices shown throughout the guide. The table below shows an example of prefab vs custom costs for windows, which is the most common factor in helping determine cost.

Storm Window Price by Size

You can expect to spend between $100 and $400 on storm windows based on their size alone. Windows come in some standard sizes. Many homes use these storm windows to protect their home. It is important to measure windows carefully to get the right size, so hiring a professional for this part is also helpful. If you choose custom sizing, that may affect the cost that you pay. The prices below represent average storm window installation costs for standard prefab window sizes.

Storm Window Cost by Frame Material

You will spend between $100 and $400 on prefab storm windows or $150 to $1,000 on custom storm windows, depending on the frame material. When buying storm windows, homeowners can choose from a few different frame materials. Each material has a different appearance and functional qualities, and some materials are considered more attractive than others and can provide better insulation. The frames you choose significantly impact your storm window’s installation cost because certain materials are more expensive.

Aluminum storm window prices are the least expensive and offer a low-maintenance option. However, they are not good insulators and may require occasional repainting. Vinyl frames are also less maintenance than wood frames but offer better insulation than aluminum. Wood frames are the best for insulation and aesthetics but are costly and require maintenance and care. Wood is also not recommended for areas with temperature extremes because the material cannot stand up to the constant expanding and contracting. The table below shows average costs for storm windows with different frame types, with costs for materials only.

Storm Window Price by Location

The average cost for storm windows based on their location ranges from $100 to $400 for the window only. Storm windows can be installed on the exterior or interior of the window, and the installation type impacts the material and labor costs. Interior windows are much easier to install and can often be fitted by the homeowner and removed as required, while exterior windows are permanent.

Interior windows are also a good choice for renters and those who want to avoid making major changes. Exterior storm windows cost slightly more but offer ongoing protection for homeowners and save the work of putting in the windows every year. Ultimately, it will be a matter of which storm windows work best for the situation. The table below shows the average costs for each type of window.

Storm Window Cost by Type of Pane

The cost to buy storm windows based on the type of pane ranges from $100 to $400. Like any window, storms have several options for the “glass” or panes making them up. Each material impacts the window’s cost, looks, durability, and function. Some materials are much cheaper and simpler but may offer less resistance, while other pane types are stronger or more energy-efficient. The table below shows common pane types with their average costs:

Plexiglass Storm Window

Plexiglass is one of the cheapest options, costing between $100 and $250 for each window. Plexiglass is not actually glass but instead flexible and lighter plastic. It is easier to work with and highly durable, often stronger than glass, but it can scratch easily. Plexiglass panels may start to turn yellow and degrade over time, as well, if they are not properly maintained. The biggest concern with this material is that it affects the opacity of the window due to scratches and discoloration. Therefore, it may not be ideal for a permanent exterior installation.

Acrylic Storm Window

You will spend between $100 and $250 on acrylic storm windows. Like plexiglass, acrylic storm windows offer the advantage of not having dangerous glass that could break or become damaged. They are durable, lightweight options. However, they are prone to scratching and discoloration but will withstand the elements and day-to-day wear and tear better than other materials. These are best for temporary or internal storm windows, but some people also use them for exterior installations.

Standard Glass

If you choose a standard glass option, you will pay between $100 and $300 per window. Storm windows can be made from many types of glass. 3/16” standard glass is the most common. This glass is not treated, tinted, or altered, meaning it does not have the advantage of premium glass windows. However, it ensures that issues like scratching and discoloration that are common with non-glass windows do not become an issue. Many people initially choose standard glass but may upgrade to other types once they see how affordable it can be.

Low-E Storm Windows

The cost for Low-E storm windows ranges from $125 to $400. If you want eco-friendly glass windows, Low-E storm windows are a great choice. Low-E glass is an energy-efficient glass designed to maximize energy savings. These panes are covered in a very fine coating that reflects heat into the room rather than out. This can help homeowners save money on heating and cooling bills. These windows may be less prone to damage and cracking than traditional glass because they are more durable.

Tinted Storm Windows

Some people like installing tinted storm windows to provide protection and privacy, which costs between $125 and $400 per window. Tinted glass or coated glass has a metal oxide applied to the material, resulting in pane tinting or coloring. This gives your windows a unique aesthetic quality and makes it difficult for any passers-by to peek into your home. Tinted glass is a good option for those wanting more privacy or looking to change their property’s exterior appearance. The biggest issue with these windows is that the tinting can become worn or scratched over time, requiring repair or replacement.

Laminated Glass

For those who want premium protection, laminated glass windows cost $150 to $400. Laminated glass panels are more durable than standard glass. They will be less prone to breaks, cracks, and other damage because of their enhanced finish. They are also better for soundproofing, providing your home with a peaceful environment. Laminated glass can protect against fading of furniture and belongings because it blocks the UV rays coming in from the window.

Double-Pane Storm Windows

Those who live in extreme climates may choose double-pane storm windows, which cost $150 to $400 per window. A double-pane storm window contains two separate panes of glass, separated by the frame. This provides more durability, less risk of shattering, and premium protection from the elements and temperature changes. Double-pane windows also come in several styles and can have tinting or Low-E features added to them for enhanced protection.

Tempered Glass

Tempered glass costs between $150 and $400 per window, depending on size, style, and other features. Tempered glass is what you typically see in vehicle windows and other places where safety is a concern. This glass has undergone special thermal or chemical processes to maximize strength. A tempered glass window is more durable and resistant, well-suited for high-risk storm areas, and less likely to shatter. And, when they do shatter, they usually break into less dangerous pieces that are easier to clean up and pose less of a risk of injury.

Storm Window Price by Track Style

We can also divide storm windows based on track style, for which you will spend between $100 and $400 per window. The track in the window frame is what holds everything in place. Often, panes can be slid along the track to open the window, but some tracks are fixed in place and prevent any opening. There are multiple types of track systems to choose from with storm windows, depending on the needs or preferences of the homeowner. Storm windows with two tracks can be partially opened to expose a screen, while triple-track storm windows can be opened completely. The table and subsections below show different tracks, their average costs, and other features.

Fixed Storm Windows

Fixed track windows are the cheapest, costing between $100 and $300. These are also called casement or picture windows, are fixed in place, and do not open. They are made from a single piece of glass and are good to install on decorative windows to provide added protection. They also work well for installations where you do not need access or will not want to open the window.

Two-Track Storm Window

These windows cost $100 to $350 each and offer the option to slide or move the storm window. In a two-track style, you have two panes of glass and a screen. There is a fixed pane of glass and a fixed screen on the outer track. The inner track houses a window that slides to allow ventilation from the screen or to close off ventilation and utilize the protection of the storm window. These are quite common in homes where people want adjustable storm window options.

Triple-Track Storm Window

This storm window style costs $150 to $400. In a triple-track style, there are three tracks with two panes of glass and one screen. Each one can slide up or down so that you can customize how you open the window. You can even open it completely to pass something through when desired, making triple-track windows quite popular.

Two-Track Slider

Expect to pay around $150 to $400 for two-track slider storm windows. With a two-track slider, there are two tracks that can slide open from side to side. This can be useful for larger, wider windows, and sliders are useful for letting more air into the home during warmer periods. You can install storm windows, screens, and interior windows that all can move to allow airflow or offer full protection from the elements.

Storm Window Installation Cost

Typically, labor for installing storm windows is charged at $65 to $300 per window. If window contractors charge hourly, you will spend $30 to $65 per hour. Each storm window takes about two hours to install. Discounts are often offered if you have multiple windows installed.

Installing a storm window is fairly easy and should only take a few minutes per window. The window’s exterior is measured to fit the storm, and the storm is adjusted and put into place. A bead of caulk is run around the storm’s edge to seal it, and the frame is screwed onto the window’s exterior frame. If necessary, a second bead of caulk may be applied to seal air gaps.

Storm Window Replacement Cost

You will pay from $50 to $400 per window for replacements. If you already have storm windows but want to replace them, you will usually pay more than installing storm windows for the first time. More labor is required to dismantle the existing windows and make any necessary frame and track changes. Some people replace storm windows because they are old or in disrepair.

The costs for storm window replacement will be charged per window. However, some installers offer a discount for multiple windows or a whole-house replacement. When replacing existing storm windows with new models, your installer may charge you an extra fee to remove the old storms. This ranges from $25 to $50 a window, depending on size, location, and how difficult they are to remove. Repairing existing storm windows may be more affordable if they only have minor damage. However, it is wise to call a professional for a quote and understand your options.

Benefits

Storm windows, sometimes called storms, offer homeowners several advantages. They cost less than replacement windows, so they can save money and lower energy costs. They can also help make homes more comfortable, with fewer air gaps and cold spots near windows. They act as insulators that reduce energy bills and keep the outside air from getting into the home. Storm windows also provide added protection from UV rays, extreme heat and cold, and other elements.

Maintenance

Storm windows require a lot of maintenance, regardless of whether they are interior or exterior. Interior windows must be removed each summer, cleaned, and stored. They may need to have excess old caulk scraped off before storing, depending on how they adhere. Some of the maintenance and care can be done by homeowners, while other major maintenance issues may need to be addressed by a professional.

Exterior storm windows do not need to be removed because they can be opened to let air in. However, the tracks must be cleaned and lubricated yearly so that they can function properly. Sometimes, this can only be done from the house’s exterior, which can be difficult on a two-story home and may cause a professional to charge more for the job. Caulking should also be checked and replaced. Frames should be cleaned and/or painted as needed to maintain curb appeal and continue providing value to the home.

Storm Window vs Regular Window Price

While you can spend $2,000 to $5,000 on storm windows, full window replacement in your home costs $3,500 to $10,000. There are pros and cons for both sides to consider. For those considering installing full replacement windows that do not include storm windows, you can expect to spend more on the entire project, depending on the type and quantity of windows you need. Regular windows are less efficient, less effective at reducing noise, and offer less protection against storms and weather. These windows offer easier maintenance and various options, however. If you want protection, storm windows are ideal. However, if you just need better windows, a window replacement could be the best choice.

Enhancement and Improvement Costs

Stabilizer Bar

You can spend $20 to $40 on stabilizer bars for storm windows. Stabilizer bars add additional structural strength to a storm window and may help prolong their lifespan. They are most commonly seen on larger, single-pane windows that need more support or stability and come in several sizes and styles. They can be purchased after the fact as an enhancement or installed at the same time as storm windows.

Window Weatherstripping

It costs around $5 to $10 per window to have a professional install weatherstripping. Storm windows may be more effective if you weatherstrip your existing windows first. Weatherstripping seals the edges around windows and doors, making them more airtight. This feature should be checked and repaired with regular maintenance to ensure that your storm windows operate at peak efficiency. Some people do weatherstripping themselves, but it is usually best left to the professionals.

Storm Window Screens

Adding window screens to your storm windows costs $20 to $50 each. Some storm windows come with screens, which will be factored into the cost, but they can also be purchased separately and added later. If you need to repair or replace window screens, you may spend between $25 and $200, depending on how much work needs to be done.

Additional Considerations and Costs

• Condensation. Storm windows can allow condensation to build up between the storm and the interior window. If this happens, it can cause the exterior wood on your home to rot. Make sure that your interior window is properly sealed prior to installing the storm to prevent this issue.
• Temporary protection. There are temporary and disposable storm windows available that you may choose to put up on the inside of your windows yourself during colder months. They may mold into place, use pieces of acrylic and fit through compression, or be plastic that is shrunk to fit the window with heat.
• Construction considerations. When choosing a storm window, make sure to look for frames that have overlapped joints 2 rather than mitered corners. Miters may allow air to seep through. Another thing to look for is an adjustable ventilation stop on the interior track, as well as glass and screens that can be removed for easier cleaning.
• Colors. Storm windows are available in many colors, the most common options being white, brown, almond, and mill. Other options may be available, so homeowners should shop around and consult different brands.
• Permits. Your contractor will help you determine what permits you need for window installation. Some municipalities require certain permits for window work, and that may vary depending on whether the work is being done inside or outside the home.
• DIY. It’s best not to try to install your own storm windows, with the exception of interior temporary windows that you can put in and take out as needed. Full installation of storm windows should always be left to the professionals.