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Modern windows have a lot of benefits: increased interior comfort, a lower carbon footprint, and lower energy bills.
But how much can you really save with modern replacement windows? Because the question isn’t “will I save money?”, it’s “how much will I save?”
The answer depends on several factors such as the climate where you live, the number of windows you replace, and the condition of your old windows. Let’s look at some numbers to see how much you could save here in Atlanta.
But first, let’s talk about why replacement windows can result in energy savings.
Believe it or not, window technology has advanced significantly over the past 15-20 years. So if your windows are 15+ years old, they’re not as energy-efficient as their modern counterparts.
Modern replacement windows have a host of energy-saving features such as low-emissivity glass, insulated double panes, and warm-edge spacers.
Low-emissivity, or low-E glass, features a microscopic coating that helps reduce solar heat gain in the summer and allows your windows to absorb the right amount of the sun’s heat in the winter. Double pane windows are insulated with argon gas, which helps to keep your home’s internal temperatures more consistent year-round. And our warm edge spacer system insulates the exterior edges, further increasing the window’s energy efficiency.
All of these features work together to prevent outdoor temperatures from impacting your home’s interior. This allows your HVAC system to work more efficiently, reducing your energy bills (and the load on your HVAC system!)
Now that you understand how replacement windows can save you money, let’s talk about how much you could possibly save.
According to the Department of Energy, you can expect to save $101-$583 per year on heating and cooling costs when you replace your single-pane windows with modern, energy-efficient double-pane windows.
In addition, reducing your HVAC system’s workload will also prevent 1,006–6,205 pounds of carbon dioxide from entering the atmosphere each year.
In a warm climate like Atlanta, you’ll likely see more savings than homeowners in more temperate climates. Since heat gain and loss via windows is responsible for 25%–30% of residential heating and cooling energy use, our temperature swings can really drive energy use – and costs – up.