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Posted on Jun 20, 2017 by Sam Heer

What Makes Your Windows Energy-Efficient?

Windows are an important part of your home. Placed strategically, windows can improve the natural light that gets inside the home without making the interior uncomfortably warm. As a homeowner, you’d want to improve the energy efficiency of your home. Did you know that a way of doing that is through installing the right windows?

Here are the features that make windows more energy-efficient:


Several things rely on the glass used in your windows. The material, thickness, spacers, and coating all contribute to the performance of glass. Your windows act as protection against the UV rays that may enter the home and fade furniture. Renewal by Andersen® of Central Illinois uses High-Performance™ Low-E4® SmartSun™ glass, the most energy efficient glass the company has ever offered, to guarantee that your windows are helping you save energy. The glass protects against the sun without letting heat in.

Windows also act as a ventilation tool, especially if it has movable parts. This minimizes the need to use artificial ventilation, like fans, to cool the room.


No energy-efficient glass window can do its job well if installed improperly. The installation is as important as your choice of window. When we install replacement windows, we make sure they fit the frame tightly and are weatherstripped to prevent air leakage. We also recommend caulking for parts of doors and windows as a way to prepare for strong wind and storms. If your area is especially prone to bad weather, we recommend storm windows, as well.

Window Treatment

You may think curtains and rollers are just decorative, but wait until you have to go without them. They are additional energy efficiency features as well as privacy aids. Shades, curtains, and shutters catch excess light that may increase the indoor temperature and cause your cooling system to work harder. They also limit outsiders’ view of your interior so you can work around the house without worrying about your privacy.

Renewal by Andersen® of Central Illinois is the contractor to call if you need window installation that considers energy efficiency. Old windows may be contributing to energy loss. Have them replaced now by giving us a call at (866) 693-6707. We serve Peoria and Champaign, Il.


"I would recommend RBA of Central Illinois for QUALITY windows and doors. Compared to our old cheap, thin vinyl windows, Andersen blows them away. You can easily tell by how well the sliding doors fit and close, and how heavy duty they are. We also cannot hear the wind rushing through the house in inclement weather anymore! And the black window frames we went with are amazing to look at. Aaron, Al, Darrell, and Cory all were professional and went all out to finish the job, given the weather they had to deal with. I would definitely recommend. They were also on top of communicating with me given the weather delays, and what I could expect for them coming out. Five stars!"

Eric L.

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