You probably don’t think about your windows all that often. But, you likely think about your energy bills and the amount you use your air conditioner and heating system. If those things are important to you, windows should be on your mind.
Even if you installed energy-efficient windows, they aren’t a set-it-and-forget-it system. Proper maintenance is critical to keeping them operating efficiently and getting the most out of them.
Keep reading to learn more about what specific maintenance steps can keep your windows energy-efficient and why you should care.
Why Energy-Efficient Windows Matter
Having windows that are performing well and are energy-efficient provides several benefits, including:
- Lowered Costs: Energy-efficient windows help reduce heat loss in the winter and heat gain in the summer. This means your heaters and air conditioners don’t have to work as hard, and you’ll see lower energy bills.
- Comfortable Home: If your windows are working properly, your home will be at a comfortable temperature most of the time.
- Decreased Energy Footprint: Having energy-efficient windows means you’ll use less energy, which reduces your carbon footprint.
- Resell Value: Upgrading to energy-efficient windows can be a listed feature when you sell your home.
4 Ways Regular Window Maintenance Improves Energy Efficiency

So, now that you know why energy efficiency in your windows matters, you likely want to learn about the how. Here are window maintenance steps to keep your windows working efficiently:
1. Clean the Windows
You should regularly clean your windows to allow natural light to shine into your home. A grimy, dirty window lets in less light, meaning you’ll have to use more artificial lighting, increasing your energy bills.
Natural sunlight can also provide some extra heat for your home. Even this little bit of help can make a difference in your energy bill in the winter months.
2. Regularly Caulk
One of the biggest issues your windows can have are gaps and air leaks. These leaks let cold air inside in the winter and air conditioning escape in the summer, forcing your systems to work harder to keep your home at a comfortable temperature.
Inspect your windows annually for gaps. The good news is that this problem is quick to fix—just caulk the gaps to prevent future leaks.
3. Repair Window Stripping and Seals
Over time, the window stripping and seals in your windows will come undone. And if this happens, it can contribute to air leaks. Make sure you repair or replace any window stripping and seals that look cracked or flawed.
4. Lubricate Hinges and Tracks
Over time, the hinges and tracks on windows can become stiff, leading to improper window closure. A window that’s not entirely closed can cause a large air leak in your home. As soon as your windows start to jam on the tracks, add some lubrication to help keep them tightly closed.
Energy-Efficient Window Upgrades
If you want to improve your window’s energy efficiency further, consider these upgrades:
- Install window inserts: Window inserts are removable panels placed over existing windows to block drafts.
- Add exterior shading: Awnings above windows and exterior shutters can block out the sun and keep your windows cool.
- Curtains: Use window coverings like thermal blinds or curtains to help regulate the temperature inside your home.
- Use solar control film: To reduce the sun’s heat, you can add solar control film to the window panels.
- Install double-glazed or insulated windows: Update your windows to be double-glazed or insulated. These types of windows have two or more panes of glass with a gap filled with gas or a vacuum to help better insulate your home.
- Purchase Energy-Star efficient windows: Upgrade your windows to be Energy-Star certified. Energy-Star windows can be up to 20% more energy efficient than regular windows.
How Much Can Energy-Efficient Windows Save You?
It’s estimated that having energy-efficient windows can reduce energy bills by up to 12%, resulting in annual savings of between $ between$71 and $500.
The people who will see the most considerable savings are:
- Individuals in extreme climates that see frigid winters or scorching summers
- Homeowners that have thin, old windows
- Homeowners with windows that have lots of issues and air gaps
- Homeowners with several large windows throughout their house
Hire Window Maintenance Professionals
Some parts of window maintenance are relatively easy to tackle yourself. You can regularly wash and clean your windows without special tools or skills.
But you may need to call a window repairman for other maintenance work. For example, you might not be able to identify when a window has air leaks or when window stripping needs replacing.
A professional can also audit your entire home to help you understand if your windows are energy-efficient enough or if there’s room for replacement.
Remember that the upfront cost of maintaining and upgrading your windows is worth the energy bill savings. Energy-efficient windows will make your home much more comfortable, easier to sell, and more environmentally friendly.
Stick maintenance reminders on your calendar to remember when to give your windows the extra attention they need.
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