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DIY Air Sealing Home Tips to Save Money

April 13, 2021
by dmirza
diy air sealing

Are you tired of paying high utility bills despite trying to save energy in your home? One major culprit could be air leaks. These sneaky little gaps and cracks can let in unwanted drafts, causing your heating and cooling systems to work overtime. But don’t worry, with a DIY air sealing project, you can lower your energy costs while increasing the comfort of your home. We’ll share some easy tips on how to seal air leaks in your home without breaking the bank. So grab a cup of coffee and let’s get started!

Check for leaks

The first step in any air sealing project is to check for leaks. Start by inspecting windows and doors for any gaps or cracks that allow air to escape. Check the frames, sashes, and weatherstripping.

Next, examine electrical outlets and light fixtures on exterior walls. These can often be a source of air leakage if not properly sealed. Consider installing foam gaskets behind outlet covers and switch plates.

Don’t forget about pipes, vents, ducts, and fans that lead outside your home. Look for visible gaps or holes around these areas where air could be escaping.

If you’re having trouble locating potential sources of air leaks, try using an infrared thermometer or thermal imaging camera to help identify problem areas by detecting temperature differences.

Once you’ve identified the sources of leaks in your home, prioritize which ones need attention first based on their size and location. Sealing even small gaps can make a big difference in reducing energy costs over time.


Weatherstripping is a simple yet effective way to reduce air leaks in your home, ultimately leading to energy savings. It involves sealing gaps and openings around windows and doors using materials such as adhesive-backed foam tape or V-strip.

When it comes to choosing weatherstripping material, the type of window or door you are working with can help determine which material will work best for you. Be sure to measure the width and depth of the gap before selecting the appropriate size weatherstripping.

Before applying weatherstripping, it’s important to clean and dry the surface area thoroughly. This will ensure that the adhesive sticks properly and lasts longer.

Once applied, test for any remaining air leaks by holding a lit candle near each window or door. If there is no flickering flame, then you have successfully sealed off any potential drafts!

Weatherstripping is an easy DIY project that can make a significant difference in your energy bills while also improving indoor comfort levels.


Caulking is an essential DIY home improvement technique to seal up gaps and cracks around doors, windows, and other areas that let air in or out of your home. This simple yet effective method can significantly reduce the amount of energy you use for heating and cooling while saving you money on utility bills.

The first step when caulking is to clean the area thoroughly with a scraper or putty knife to remove any grime, dust, or old caulk residue. Then apply a steady bead of caulk along the gap using a caulking gun, making sure it fills all the crevices.

It’s important to choose the right type of caulk for each location as different types have varying properties such as flexibility and durability. For example, silicone-based caulk works well in wet conditions like bathrooms and kitchens where there’s high moisture content.

Another useful tip when working with caulk is to smooth it down evenly using your finger or a tool like a plastic spoon dipped in water. This helps create a neat finish while ensuring maximum coverage over gaps.

Remember always to allow enough time for the caulk to dry completely before painting over it or exposing it to water or extreme temperatures. With these tips in mind, you’re now ready to tackle any air leaks around your home effectively!

Seal attic and basement

One of the most significant sources of air leaks in your home is through the attic and basement. These areas tend to have gaps, cracks, and holes that allow air to escape or enter your home. That’s why sealing your attic and basement can help improve energy efficiency.

When it comes to sealing your attic, make sure you check for any visible gaps around pipes, wiring or ductwork leading out from the area. Use spray foam insulation or caulk to seal them up properly.

Another area where heat loss occurs is through the basement rim joists. Rim joists are horizontal boards that sit on top of a foundation wall and support the floor above it. By adding rigid foam board insulation between these joists and caulking any gaps with spray foam insulation or caulk, you can prevent cold air infiltration into your living space.

In addition to reducing heating costs by preventing drafts, sealing these two areas will also help control moisture levels in your home and reduce potential mold growth problems.

Taking steps like sealing attics and basements may seem small but they make a big difference when it comes down to saving money on energy bills while keeping our homes more comfortable year-round!

Use draft stoppers

Have you ever noticed a cold draft coming from underneath your door during the winter months? This is not only an annoyance but can also lead to higher energy bills. One simple solution to this problem is using a draft stopper.

A draft stopper, also known as a door snake, is a long tube-like cushion that sits at the bottom of your door and blocks out any drafts or air leaks. They are easy to install and come in various sizes and colors to match your home decor.

Not only do they save you money on heating bills, but they can also provide extra cushioning for noise reduction and prevent pests from entering your home through gaps under doors. You can even make DIY draft stoppers using materials such as old socks or fabric scraps.

Using draft stoppers is just one of many ways you can easily air seal your home and save money on energy costs. So why not give it a try? Your wallet (and toes) will thank you.


Insulating your home can go a long way in reducing energy consumption and saving money. Without proper insulation, heat can easily escape through the walls, roof, and windows during winter months while cool air escapes during summer.

To ensure that your home is properly insulated, start by checking the R-value of your insulation. This value measures how well it resists heat transfer – the higher the value, the better. If you have an older home or haven’t updated your insulation in several years, consider hiring a professional to assess and upgrade it for maximum efficiency.

Another important aspect to keep in mind when insulating is choosing the right type of material. Fiberglass batts are commonly used but they tend to leave gaps which decrease their effectiveness. Blown-in cellulose insulation on the other hand fills all cavities to provide uniform coverage.

Additionally, don’t forget about insulating areas such as attics and crawl spaces which are often neglected but still contribute significantly to energy loss. Properly sealing these areas will not only improve energy efficiency but also enhance indoor comfort levels.

Investing in quality insulation might require some upfront costs but will ultimately pay off with lower utility bills and a more comfortable living space year-round.

Replace air filters

By replacing your air filters regularly, you can keep the air in your home clean and improve your HVAC system’s efficiency. Dirty air filters reduce airflow and make your heating and cooling system work harder than it needs to, which increases energy costs.

Most manufacturers recommend changing air filters every one to three months depending on usage. However, if someone in your home has allergies or pets, you may need to replace them more frequently.

By following these DIY air sealing tips for your home, you can increase its energy efficiency while saving money on utility bills. While some of these tasks require a little more effort than others, they are all relatively easy and inexpensive ways to make sure that the warm or cool air stays inside where it belongs. Take charge of reducing drafts this season with our helpful guide!

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