frequently askED questions


Questions will be answered here.

Discover This Informative Guide

Discover solutions to your key inquiries regarding our window replacement procedure, warranty details, and other essential aspects, especially focusing on energy efficiency.

Our replacement windows are meticulously crafted in the manufacturing phase for superior performance, undergoing rigorous quality control tests to guarantee an industry-leading product.

Our Guardian windows include a standard, limited lifetime warranty. Still, we also offer extended warranties such as double lifetime “transferable,” lifetime glass breakage, lifetime seal failure, and installation warranties. Find out more.

Most issues can be easily fixed and might not signal a window problem. If you encounter a rare issue with your window replacement, visit our Virtual Repair Center or contact local representatives. All our replacement windows come with a limited lifetime warranty.

Typically, replacement windows endure 20 to 40 years. Rest assured, a limited lifetime warranty supports your peace of mind.

Guardian windows are designed for energy efficiency, keeping your home comfortable and reducing energy costs while minimizing greenhouse gas emissions. Explore our video or energy efficiency page for more details.

Consider replacing windows if your home experiences significant temperature fluctuations indoors or if your monthly utility bill becomes unreasonably high.

Absolutely. Guardian new windows elevate your home’s value, boost curb appeal, and improve energy efficiency, leading to savings.

Vinyl siding offers increased home value, enhanced curb appeal, and maximized energy efficiency.

Most of our replacement windows are installed from the inside, although exterior installation may be necessary in specific cases. 

Your replacement windows will typically be installed within 4-8 weeks from the final measurement date. The installation duration varies based on the window type, with an average of 30 minutes per window. Additional time is needed for trim work and cleanup, usually completing an average job within a day.

Once your new replacement windows are installed, we thoroughly clean up and dispose of all debris on your property. If you prefer to keep your old windows, glass, or storm windows, please inform the installer upon their arrival for the installation.

book now


Enjoy Our Free In-Home Estimates

We visit your location to gather all the necessary details to ensure the best quote in Houston. Then, we discuss replacement options that align with your budget and style preferences.

Call Us Now


window features an arched design and contains two panes of glass



At Guardian Windows, our dedication is to offer an outstanding window replacement near you. As your recommended and reliable solution for replacing windows, we invite you to get in touch for a complimentary consultation. Explore how Guardian Windows can assist in renovating your home with innovative windows.