We are OPEN for business! Call today to a schedule a consultation!
We've changed our name! To better describe our commitment to superior service, SI Windows - Phoenix is now

Questions You Should Ask While Shopping for Replacement Windows

replacement windows in Phoenix AZ

Replacement windows can do wonders for the look and feel of your home. Not only that, but they can also help improve your energy efficiency and save you money on your utility bills. With so many options in the market, it can be challenging to know which replacement windows are right for you. That’s why this list of questions will help you when shopping for replacement windows in Phoenix, AZ.

What is the window’s U-factor?

The U-factor measures how well a window prevents heat from escaping. The lower the U-factor, the better the window prevents heat loss. As a result, windows with a low U-factor can help you save money on your energy bills.

When considering replacement windows, ask about the U-factor so you can choose the most energy-efficient option for your home. Look for replacement windows with a U-factor of 0.30 or lower.

What is the Windows Solar Heat Gain Coefficient?

This is about measuring how well the heat from the sun is blocked by the window. Getting windows with lower SHGC blocks solar heat. If you live in a hot climate, look for replacement windows with a low SHGC to help keep your home cooler.

On the other hand, if you live in a cold climate, you may want replacement windows with a higher SHGC so they can let in more solar heat and help improve your home’s energy efficiency.

What Is the Windows Air Leakage?

Air leakage is the amount of air that can pass through a window. The lower the air leakage, the less air can escape through the window. Air leakage can cause your home to lose heat in the winter and gain heat in the summer, making it more challenging to keep your home comfortable.

When shopping for replacement windows, ask about the air leakage to choose the most energy-efficient option. Look for replacement windows with an air leakage of 0.30 or less.

What Is the Window’s Visible Transmittance?

Visible transmittance measures how much light can pass through a window. The higher the visible transmittance, the more light can pass through the window.

If you want replacement windows that let in more light, look for those with high visible transmittance. However, if you prefer those that block out more light, look for those with a low visible transmittance.

What Is the Window’s Warranty?

Be sure to ask about the warranty when shopping for replacement windows. Some manufacturers offer warranties that cover the cost of replacement windows if they break or leak, while others only provide limited coverage. Choosing replacement windows with a good warranty can help you save money in the long run.

What Is the Window’s Cost?

Of course, replacement windows can vary widely in cost. Be sure to get an estimate from each manufacturer or retailer before making your final decision. Don’t forget to factor in the installation price when budgeting for replacement windows.

replacement window in Phoenix AZ


Asking these questions can help you narrow down your choices and find replacement windows in Phoenix, AZ, that is right for your home. Be sure to consult a professional to get the best advice for your situation. And remember, replacement windows are a significant investment, so be sure to do your research before making a final decision on design option.