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What to Look For In Replacement Windows

It’s easy to know what you don’t want from your window: no one wants a drafty window, a window that cracks and scratches easily, or a window that doesn’t fit the aesthetic for their home. But when it’s time to find replacement windows for your Des Moines home, what should you look for?

The right replacement window for you depends on your home. If you have windows that let in too much air, your first priority will be to find windows with better insulation. If your windows are broken, you’ll want windows with more durability. But there are certain good characteristics to look for in any replacement window. Here are our suggestions.

Multiple Panes

Double- or triple-paned windows add insulation to your home, keeping you comfortable inside even in extreme temperatures outside. With multiple panes of glass, it’s harder for air to leak through the window, especially with the help of gas fillings. Argon or krypton gas(both non-toxic) fill the space in between glass panes and slow the flow of air and heat. High quality replacement windows with multiple panes of glass should also have low-E coatings, which keep out the harmful rays from the sun.

NFRC Label

The National Fenestration Ratings Council rates windows on four different standards of energy performance: Air Leakage (AL), Visible Transmittance (VT), Solar Heat Gain Coefficient (SHGC), and U-Factor. Another optional rating is Condensation Resistance (CR). AL determines how much air leaks into or out of the windows, while VT rates how much light the windows let into the home. SHGC is the amount of heat from outside that is allowed inside, while U-Factor determines how much heat from inside the home escapes out. CR determines how well the glass will resist condensation. The NFRC label will tell you where your replacement window stands in each of these categories, therefore helping you get an idea for how energy efficient it is.


You want your replacement windows to last for years and years. Many homeowners opt for vinyl replacement windows because of the low maintenance, options, and affordability, and there are many quality vinyl replacement windows options out there. However, settling for the cheapest option may lead you to another replacement window project sooner than you’d like. Don’t make your decision on which window and company you choose solely based on what a salesperson tells you. Most salespeople are trained to say what they need to say to get you to buy their product that day. Do your own research. Decide what options and styles fit your home and lifestyle best. Most times it is worth it to invest a little more into the project by choosing quality windows so that you never have to replace them again.

Home Design

When you buy insert replacement windows, the style is usually secondary. Insert replacement windows are made to fit right into your existing window frame, so the window won’t look much different from your old window. However, full frame replacement windows should complement your home’s style. If you’ve recently changed your home’s design, your windows should reflect that as well. Your replacement windows can boost your curb appeal when you choose a style that best compliments your home’s style.

If you need quality replacement windows, look no further than Zen Windows Des Moines. We offer the best from one of the finest brands on the market. Let us know about your replacement window project and we’ll help you find a replacement window that’s perfect for your home and will last for years.