How to Weatherstrip Windows: A Comprehensive Guide

Welcome to our article about how to weatherstrip windows! Drafty windows can be a source of frustration for homeowners, but there is a simple and cost-effective solution: weatherstripping. In this article, we will guide you through the process of weatherstripping your windows with 12 easy-to-follow steps, as well as provide some helpful tips and tricks. By the end of this article, you’ll be equipped with the knowledge and skills to keep your home insulated and cozy!

The Steps to Weatherstrip Windows

Gather Your Materials

The first step in weatherstripping your windows is to gather the necessary materials. You’ll need a measuring tape, a utility knife, weatherstripping material, and a caulk gun. Make sure to choose a weatherstripping material that is appropriate for your window type.

Inspect the Window

Before beginning the weatherstripping process, inspect the windows to identify any gaps or cracks that need to be sealed. Check for gaps between the window frame and the wall, around the window sash, and any other areas that may be letting in cold air.

Measure Window Gaps

Once you have identified the areas that need to be sealed, use a measuring tape to measure the gaps. Record these measurements on a piece of paper, as you will need them when cutting the weatherstripping material.

Clean the Window Surface

Before applying weatherstripping material, make sure the window surface is clean and dry. Use a damp cloth to wipe away any dirt or debris that may interfere with the adhesion of the weatherstripping material.

Cut the Weatherstripping Material to Size

Using the measurements you recorded earlier, cut the weatherstripping material to the appropriate size using a utility knife. Make sure to cut the material slightly longer than necessary to ensure a snug fit.

Install Weatherstripping Material

With the weatherstripping material cut to size, it’s time to install it. Starting at one end, use a caulk gun to apply the weatherstripping material to the window frame, making sure to press it firmly into place. Continue applying the material along the entire length of the gap.

Apply a Second Layer (Optional)

For larger gaps or areas that require extra insulation, a second layer of weatherstripping material can be applied. Repeat steps 5-6 to install the second layer, making sure the materials overlap slightly to create a tight seal.

Check the Window for Drafts

After the weatherstripping material has been installed, check the window for any remaining drafts. Close the window and run your hand around the edges to feel for any remaining air leaks.

Replace Damaged Screws and Seals

In addition to weatherstripping material, damaged screws and seals can also contribute to drafty windows. Check for any damaged screws or seals and replace them as needed.

Install Window Insulation Film

Window insulation film is another effective way to insulate your windows and prevent drafts. Install the film according to the package instructions, making sure to cover the entire surface of the window.

Add Insulating Curtains or Blinds

To further improve your window insulation, consider adding insulating curtains or blinds. These can help to retain heat and keep out drafts, particularly when combined with weatherstripping and insulation film.

Consider Professional Help

If you’re not confident in your ability to weatherstrip your windows yourself, or if you have particularly old or difficult-to-seal windows, consider hiring a professional. A professional can ensure that your windows are properly sealed and that you’re getting the best possible insulation.

Tips and Tricks

1. Choose the Right Weatherstripping Material

Different types of windows require different types of weatherstripping material. Make sure to choose a material that is appropriate for your window type and location.

2. Seal All Areas of the Window

To achieve maximum insulation, it’s important to seal all areas of the window, including gaps around the sash and between the frame and the wall.

3. Use Caulk to Fill Large Gaps

If you have particularly large gaps to fill, or if weatherstripping material isn’t sufficient, consider using caulk to fill the gaps.

4. Check for Gaps Regularly

It’s a good idea to periodically check your windows for gaps or drafts, particularly before the onset of cold weather.

5. Consider Upgrading to Energy-Efficient Windows

If your windows are particularly old or drafty, it may be worth considering an upgrade to more energy-efficient windows.

6. Don’t Forget the Exterior

In addition to weatherstripping the interior of your home, it’s important to seal any gaps or cracks on the exterior of your home as well.

7. Add Draft Stoppers

Draft stoppers are a simple and inexpensive way to prevent drafts from coming in under doors and windows.

8. Use a Space Heater

If you’re still feeling a chill even after weatherstripping your windows, consider using a space heater to supplement your home heating.

9. Open Your Blinds During the Day

During the day, open your blinds or curtains to allow sunlight in and naturally heat your home.

10. Close Your Blinds at Night

At night, close your blinds or curtains to help insulate your windows and retain heat. With these tips and tricks, you’ll be well on your way to achieving a warm and cozy home environment. Remember, the key to effective weatherstripping is thoroughness and attention to detail. Happy sealing!

Advantages and Disadvantages of Weatherstripping Windows

Weatherstripping your windows can be a good way to increase your home’s energy efficiency and save money on heating and cooling costs. However, there are both advantages and disadvantages to using this method. Here are 10 advantages and 10 disadvantages.


1. Reduces drafts and air leaks, making your home more comfortable
2. Helps prevent moisture and condensation buildup
3. Improves indoor air quality by reducing dust and allergens
4. Reduces noise from outside
5. Helps prolong the life of your windows
6. Can be a DIY project, saving money on installation costs
7. Increases your home’s resale value
8. Can be done without changing the appearance of your windows
9. Decreases energy usage and helps reduce your carbon footprint
10. May qualify for energy efficiency tax credits or rebates


1. May not completely eliminate all drafts and air leaks
2. Can be time-consuming to install or require a professional service
3. May need to be replaced periodically due to wear and tear
4. Can be expensive, especially for larger windows or multiple windows
5. May not be effective for windows that are already damaged or warped
6. May affect the operation of windows, making them harder to open and close
7. May not be suitable for historical or architectural windows
8. May not be aesthetically pleasing to some homeowners
9. Can be difficult to remove if you want to paint or replace the windows
10. May not be a significant improvement for homes with newer, more energy-efficient windows

In conclusion, weatherstripping your windows can have many benefits, including improved comfort, energy efficiency, and indoor air quality. However, it’s important to weigh these advantages against the potential disadvantages before deciding whether to weatherstrip your windows or explore other options for improving your home’s energy efficiency.

FAQ – How to Weatherstrip Windows

1. What is weatherstripping?

Weatherstripping refers to any material used to seal gaps around windows and doors to prevent air, dust, noise, and moisture from entering your home.

2. Why is weatherstripping important?

Weatherstripping is important because it helps make your home more energy-efficient, reduces noise pollution, and improves indoor air quality by preventing drafts and allergens from entering your home.

3. How do I know if I need weatherstripping?

If you feel drafts around your windows, hear outdoor noise, notice excessive dust in your home, or see moisture build-up on your windows, it may be time to weatherstrip.

4. What materials are commonly used for weatherstripping?

Common materials include foam, felt, vinyl, rubber, and metal.

5. How do I choose the right weatherstripping material for my windows?

You should choose weatherstripping material based on the size and shape of the gaps around your windows, the level of insulation and durability you want, and the type of window you have.

6. Can I install weatherstripping myself?

Yes, weatherstripping is easy to install and can be done yourself with basic tools.

7. What tools do I need to install weatherstripping?

You will need a utility knife, scissors, a measuring tape, and a caulking gun.

8. What steps are involved in weatherstripping windows?

First, clean and dry the window frame. Next, measure the dimensions of the gaps you want to seal. Then, cut the weatherstripping material to fit the gaps. Finally, install the weatherstripping material with a caulking gun or adhesive.

9. How often should I replace weatherstripping?

You should replace weatherstripping every 2-3 years, or as needed if it becomes damaged or worn out.

10. Can weatherstripping save me money on my energy bills?

Yes, weatherstripping can reduce your energy bills by preventing air leaks and improving insulation in your home.

11. What are some other benefits of weatherstripping?

Other benefits include reducing noise pollution, improving indoor air quality, and extending the life of your windows and doors.

12. Are there any drawbacks to weatherstripping?

One potential drawback is that weatherstripping may interfere with the operation of your windows, so it’s important to choose the right material and install it correctly.

13. How much does weatherstripping cost?

The cost of weatherstripping depends on the type and amount of material needed, but it’s generally an affordable home improvement project.

How to Weatherstrip Windows

Weatherstripping is an inexpensive and effective way to seal gaps around windows and doors, and prevent cold air from entering your home. It can also help you save money on your energy bills. In this article, we will discuss how to weatherstrip windows to make your home more comfortable and energy-efficient.


In conclusion, weatherstripping is a simple and effective solution to drafty windows. It is an inexpensive, do-it-yourself project that can help you save money on your energy bills. By sealing gaps and cracks around your windows, you can keep warm air in and cold air out, making your home more comfortable. So, if you’re looking to improve the energy efficiency of your home, weatherstripping your windows is a great place to start.

Thank you for reading this article on how to weatherstrip windows. We hope that you have found this information helpful. If you have any questions or comments, please feel free to leave them in the section below. We would love to hear from you.

Until next time, stay warm and cozy!