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Observing significant climate change effects has prompted people to delve more deeply into energy conservation and lower their carbon footprint. As a result, there has been an increase in homeowners adding energy-efficient systems to their homes, such as windows and solar panels, in recent years. Unfortunately, windows are the most significant cause of energy inefficiency in our homes, especially if you require cooling in the summer and heating in winter.

But what makes a window more energy efficient when compared to the standard window of a few decades ago? First, let’s look at the significant differences.  This information will come in handy whenever looking for window replacement in Milwaukee, WI.

Energy Efficient vs. Regular Windows

Structural Differences

For decades, the most popular window used in houses in the USA has been the double-hung, single-pane window. Unfortunately, a single pane of glass quickly conducts heat in and out of a structure. In addition, if the frame is made from a highly conductive material like aluminum or the window is not tightly sealed, the heat loss is even more significant.  

An energy-efficient window has multiple panes of glass which minimizes heat transfer. This efficiency is enhanced when the space between the panes is filled with non-toxic gases like krypton or argon.

Surface Coating

When low-emissivity (Low-E) coatings are used on glass surfaces, heat transfers are further reduced. When applied to the outside of glass panes, sunlight is reflected, thus keeping the house cooler in the summer.  When applied to the inside glass surface, it prevents heat from escaping, keeping the home warmer.


The ENERGY STAR program is jointly run by The Environmental Protection Agency (EPA) and the Department of Energy to promote environmentally friendly energy practices. The lower the rating, the better for the environment. In addition, ENERGY STAR products save consumers energy costs.

Window Replacements

When considering replacement windows, energy efficiency should be at the top of the list. This is because energy-efficient windows will save money in the long term. But, of course, the climate in the local area makes a difference even with energy-efficient windows. For example, the best windows for a house in a cold environment will differ from the best windows in a warm or temperate climate.  

Empire Home Remodeling

Are you confused about which windows are best for your home?  Empire Home Remodeling can help. Our experts will help you select the best windows for your climate, aesthetic, and budget and then professionally install them.  Contact us at 414-600-6333 and see what we can do for you.