How Much Do Storm Windows Cost? [2026 Data]

In 2026, the national average cost to install storm windows is $12,450, based on data from 962 verified projects reported by Angi Pros. Most homeowners pay between $4,612 and $20,436, with the spread driven primarily by window size, frame material, and whether you choose exterior or interior installation.

Storm Windows Cost Factors: What Determines the Price?

Several key factors drive storm window costs, and understanding them helps you budget accurately before you buy. Size and material have the biggest influence on the total price per window, but installation method and glass type also play a role.

Size

Installing storm windows costs an average of $55 per square foot. Storm windows fit inside the frame of your existing window, so measure from the head to the sill and between the jambs, then multiply the square footage by $55 to estimate your cost. Choosing a custom size instead of a standard one can push your cost per square foot to $100 or more, so sticking with standard dimensions is one of the easiest ways to keep spending in check.

The table below shows estimated costs by common storm window sizes in 2026:

Exterior vs. Interior Storm Windows

Interior storm windows cost around $24 per square foot, compared to $55 per square foot for exterior storm windows. Exterior storm windows are the more common choice, installed over the outside of your existing window to protect both the glass and your home's interior from storm damage. Interior storm windows are installed on the inside of your existing windows, which helps preserve curb appeal but leaves the window itself unprotected.

Labor

Labor accounts for 30% to 50% of your total storm window cost, ranging from $30 to $200 per window. Some window contractors charge by the hour, with rates ranging from $30 to $100 per hour. Getting quotes from multiple pros before committing helps you find the most competitive rate for your project.

Frame Material

Storm windows come in three main frame materials—aluminum, vinyl, and wood—and your choice affects both cost and energy efficiency. Aluminum is the most affordable option, vinyl sits in the middle, and wood is the most expensive. It's worth speaking with a window company near you to weigh whether the efficiency gains from vinyl or wood frames will offset the higher upfront cost over time. The table below breaks down the average cost of storm window installation across three different material types:

Type of Window

The type of storm window you choose directly affects your total cost, with more functional designs costing more. Traditional fixed storm windows were non-operable inserts meant to be swapped in and out seasonally, which limited their everyday usefulness. Modern storm windows feature moveable sashes that work much like standard windows, offering greater convenience without sacrificing protection. The table below breaks down the average cost of storm window installation based on type:

Type of Window Glass

The type of glass you choose for your storm windows determines both the level of protection and the insulating performance you get. Standard glass comes in 3/4-inch or 1-1/8-inch thickness, with the thicker option offering better impact resistance than typical window glass. Tempered glass is four times stronger than standard glass and pushes your total toward the high end of the cost range, around $34,000, while plexiglass is the most affordable option at around $300 per window, though it can reduce your home's curb appeal.

You can upgrade to laminated glass or low-emissivity (low-E) glass for better insulation in extreme climates, or to tinted storm window glass to reduce solar heat gain and the amount of UV rays that enter your home.

Removal of Old Storm Window

Removing existing storm windows before installing new ones costs between $10 and $20 per window, a small fee most window installers charge to remove and haul away the old units. If you're upgrading to a more protective or visually appealing option, factor this removal cost into your overall budget from the start.

Number of Windows You Need

The total number of storm windows you install directly affects your overall cost, but ordering in volume can work in your favor. Many installers offer per-window discounts for larger jobs, and you could save between $10 and $20 per storm window by adding them to all your windows at once. Ask your installer upfront whether they offer bulk pricing before finalizing the scope of your project.

Storm Windows Ongoing Costs: What to Budget for Later

Purchasing and installing storm windows is the biggest expense, but ongoing repair and maintenance costs are worth budgeting for as well. After storm season, some windows may need repair or full replacement, and even undamaged windows require routine upkeep to stay effective. Here’s what you might pay in ongoing expenses after installing storm windows:

Why You Should Hire a Window Specialist

Hiring a local window contractor is ideal, especially if you're installing them on the second floor of your home. Installing windows without the help of a certified installer could lead the window manufacturer to void or limit your warranty. For total peace of mind, hire a window replacement contractor to do the work.

Here's why it's ideal to hire a window replacement contractor

Replacing or installing storm windows is a precise project that requires specialized expertise. Here are some of the top reasons to work with a pro:

• Window pros ensure frames, seals, shutters, and exteriors aren't damaged in the installation process.

• They have the tools and experience needed to install storm windows safely and effectively.

• Working with a pro ensures your project is done accurately and without the need for costly repairs down the line.

• Bundling storm window installation with other window projects, such as installing new windows are repairing frames, can save on overall design costs.

If you want to DIY storm windows

If you want to take on some aspects of the project yourself, here are a few DIY tasks that can help save time and labor costs.

• Remove decorations from the window, including blinds, curtains, or window displays, before installation begins.

• Work with your window specialist to finalize a design and action plan early on so you understand the entire scope of the project.

• Move furniture and obstacles away from the windows to avoid added costs at the beginning of the storm window project.

How Much Do Add-Ons Cost When Installing Storm Windows?

Several add-ons are available to strengthen your storm windows and extend their useful life. From structural reinforcements to protective films and shutters, these upgrades vary widely in cost and benefit depending on your climate and risk level:

• Stabilizer bars: Stabilizer bars provide additional structural strength and help prolong the life span of your storm windows. They can help resist warping and add a bit more strength to your storm windows, reducing damage from impacts. These supportive features cost around $20 to $40 per bar.

• Weatherstripping: This seals the edges around your storm windows, reducing how much the outside air affects the temperature in your living space. Weatherstripping a storm window can cost between $50 and $200.

• Hurricane window film: This film helps prevent your windows from shattering in the event of an impact. Hurricane window film costs around $350 per 75-square-foot roll—one roll can cover up to 10 windows, each measuring 24 by 36 inches. You can often install window film yourself for an average cost of $4 per square foot, but if you hire a pro, expect to pay $7-$8 per square foot.

• Hurricane shutters: Hurricane shutters are solid, shatter-proof shutters that sit outside your windows and can retract to maintain ventilation and natural light in good weather. Hurricane shutters cost $1,950 to $5,800 to install, with an average of $3,850.

5 Ways to Save Money When Buying and Installing Storm Windows

One of the best ways to save money when installing storm windows is to invest in the most weather-resistant option within your budget. You might pay more if you couple hurricane windows with 1-1/8 inch thick tempered glass, but maximizing protection for your home also reduces the risk of property damage. Repairing property damages can quickly cost much more than an initial storm window investment.

There are a few other things you can do to keep costs down:

• Keep it prefab: You'll find many options to customize your storm windows, but if you stick to products you can buy off the shelf, you'll cut down storm window costs. If you have standard window sizes, you should have no problem finding prefab storm windows that fit perfectly.

• Consider hurricane film: If you live in an area that doesn't get a lot of extreme storms but you still want some protection, opting for hurricane film instead of storm windows could save you some money. Storm windows cost between $90 and $400 each, but hurricane film costs an average of between $25 and $50 per window.

• Consult your insurance provider: Your homeowners' insurance provider may offer deals and discounts for risk mitigation projects, like installing storm windows. Ask your provider if you're eligible for a premium reduction if you install storm windows.

• Look for tax incentives: Energy-efficient windows may be eligible for tax incentives, including the Windows & Skylights Tax Credit from ENERGY STAR®, a U.S. Environmental Protection Agency-run program, worth 30% of the project (up to $600).

• Shop in the off-season: Don't wait for bad weather to hit. Before hurricane season, start shopping around for deals on storm windows. Many providers have lower material and labor costs when demand is lower.

• Choose glass and frame options carefully: The thickness and type of glass you choose for your storm windows, as well as the frame material, can mean a difference of hundreds of dollars per window. Speak with a window installer near you to see what materials will suit your needs and keep upfront costs to a minimum.

• Install all your storm windows at once: Many installers will provide small discounts per storm window you install. Replacing all your storm windows at once will cost more upfront, but you could save money in the long run.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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