what are storm windows

What Are Storm Windows? The Secret to a Warmer, More Efficient Home.

Updated: 04.09.2025

By Nina Tsoy

Tired of chilly drafts sneaking in, sky-high energy bills, and weather taking a toll on your windows? Storm windows might be the fix you didn’t know you needed. But what exactly are they, and how do they help?

This guide breaks it all down — what storm windows do, the different types available, and how to choose the best one for your home.

What Is a Storm Window?

A storm window is a secondary panel installed over your existing window. Unlike full window replacements, storm windows work with what you already have, adding an extra barrier for insulation and protection. Most are made of glass or another clear material inside a frame, which attaches directly to your window frame. Beyond just storm protection, they help with energy efficiency, noise reduction, and extending the life of your original windows.

The Functions of Storm Windows

The functions of storm windows

Storm windows serve several important functions, making them a worthwhile investment for many homeowners. Here’s a closer look at the key benefits:

Enhanced Energy Efficiency

Storm windows act as a thermal barrier, keeping warm air inside during winter and preventing excess heat from creeping in during summer. By reducing heat transfer through your windows, they lighten the load on your heating and cooling systems, helping you save money on energy bills while maintaining a comfortable home temperature year-round.

Protection from the Elements

Storm windows are designed to protect your existing window from harsh weather conditions, such as strong winds, heavy rain, snow, and hail. They act as a barrier, preventing damage to your original window and helping to prolong its life span.

A Cozier, More Efficient Home Is Just a Call Away

Every draft is money out the window. Storm windows add insulation, cut down on energy waste, and protect your home from the elements. Call Aurora Doors & Windows now for a free quote and expert advice!

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Draft Reduction

Ever feel that cold air creeping in near your windows in the winter? That’s air leakage at work. Storm windows seal those gaps, reducing drafts and making it easier to maintain a steady, comfortable indoor temperature without constantly adjusting the thermostat.

Noise Reduction

If you live near a busy street or an airport, or just want a little extra peace and quiet, storm windows can help. The extra layer of glass or acrylic helps block out external noise, giving you a quieter, more relaxing home environment.

UV Protection

Direct sunlight can cause furniture, carpets, and artwork to fade over time. Some storm windows come with Low-E coatings or other UV-blocking features to protect your interior while still letting in plenty of natural light.

Protection for Older Windows

Have historic or delicate windows that you don’t want to replace? Storm windows let you keep their original character while adding efficiency and durability. They shield fragile materials from the elements, preventing further wear and tear without altering the look of your home.

Types of Storm Windows

Not all storm windows are built the same. The right choice depends on your home, your budget, and how much protection you need. Here’s a look at the most common types:

Exterior Storm Windows

The most popular option, these are installed on the outside of your home, adding a durable barrier in front of your existing windows. They come in materials like aluminum, vinyl, and wood and can even be used with double-pane glass windows for extra insulation.

Interior Storm Windows

If exterior storm windows aren’t an option, interior storm windows offer a great alternative. Some are flexible plastic sheets that attach with tape or magnetic strips, while others are more permanent panels designed for long-term efficiency.

Combination of Storm and Screen Windows

These versatile windows have two tracks, so you can switch between a glass panel for cold months and a screen for ventilation in warmer weather. They’re a great option for homeowners looking for year-round convenience.

Fixed Storm Windows

Designed for windows that aren’t frequently opened, these are mounted in place to provide extra insulation and protection. They offer a simple, low-maintenance solution for keeping your home more energy-efficient.

Temporary Storm Windows

Temporary storm windows are designed for short-term use and are typically made from lightweight materials like plastic sheeting or acrylic panels. They are easy to install and remove and offer a cost-effective way to add a layer of protection against drafts, wind, and rain.

The Pros and Cons of Storm Windows

Storm windows offer a practical way to improve home comfort, energy efficiency, and window longevity. While there are a few drawbacks to consider, the benefits often outweigh them. Let’s break it all down:

Storm Windows ProsStorm Windows Cons
Reduce heat loss and heat transmission.May complicate cleaning the original window and necessitate the removal.
Eliminate drafts and minimize air leaks that drive up energy costs.May slightly alter the look of your existing windows.
Act as a barrier against harsh weather.Incorrect installation leads to noise and condensation between layers of glass.
A cost-effective alternative to full window replacement.Some styles can affect curb appeal, depending on your home’s design.
Available in a variety of styles to suit different homes and needs.Frames and glass require periodic cleaning to maintain their appearance and function.
Help reduce outside noise, creating a quieter indoor environment.
Some options with Low-E coating help block harmful UV rays.
Protect existing windows from damage.

While there are some minor considerations when opting for storm windows, their numerous benefits make them a valuable addition to your home. Storm windows provide a cost-effective method to reduce heat loss, prevent drafty windows, and protect from the elements, helping you to save money in the long term.

Choosing the Right Storm Windows: Key Factors to Consider

Picking the right storm windows isn’t just about adding insulation. It’s about finding the best fit for your home and climate. Here’s what to keep in mind:

  • Material: Consider the material for the storm window frames. Aluminum, vinyl, and wood are all popular choices. Aluminum frames are durable and low-maintenance, while vinyl is cost-effective, and wood offers a classic look.
  • Glazing: When choosing, consider the properties of the glass panes. Low-E glass or Low-E glass panels can provide additional energy savings.
  • Type: Decide whether exterior storm windows or interior storm windows are more suitable for your home. Take a look at your current window and consider how they are used to inform this decision.
  • Size and fit: Ensure that you purchase storm windows that will fit your window opening. Accurate measurements are crucial for proper sealing and maximum energy efficiency.
  • Climate: It’s important to consider your climate zone and conditions. In areas with extreme weather, you need something designed to handle the conditions.

If you’re confused about selecting the ideal storm window or unsure where to begin, Aurora Doors & Windows is here to help. Our team can provide personalized consultation and help you choose the perfect storm window solutions for your specific needs and budget.

Choose Your Perfect Storm Windows with Aurora Doors & Windows

Dealing with drafty windows and rising energy bills? Storm windows provide an easy, affordable way to improve insulation and reduce energy costs. With enhanced thermal performance and low-emissivity options, they help reflect heat and keep your home comfortable year-round.
If you’re ready to take the next step and explore other storm windows, remember that Aurora Doors & Windows is here to guide you. Contact us today for a personalized consultation and find the perfect solution for your home.

FAQ

What's the difference between storm windows and regular windows?

Regular, or primary windows, are the original windows installed in your home, which are the main barriers to the outside. Storm windows are supplemental windows designed to be installed over your existing windows. They provide additional protection, energy efficiency, and insulation to your original windows.

How do I properly clean storm windows?

Use mild soap and water to clean storm windows. Avoid abrasive cleaners that could scratch the glass or damage the frames. Regularly wipe down tracks and frames to keep them in good condition.

Can storm windows be used on all types of windows?

Yes! Storm windows can be used on double-hung, casement, picture, and other window styles. However, attachment methods and design options may vary depending on your existing windows.

How long do storm windows typically last?

The lifespan of storm windows depends on the material and quality. Aluminum frames and Low-E glass tend to last the longest, often providing years of durability with minimal maintenance.

Nina Tsoy

Nina Tsoy

Nina Tsoy is a trusted window industry expert with 15+ years of experience. Read her latest blogs and get valuable insights for your next window project.

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