Installation Support

Everything You Need For A Perfect Window or Patio Door Installation On Any Project Type


Building a new house or need to replace existing windows? The installation process varies between a wood opening and a new construction opening using a nail fin, so we have written installation instructions as well as “how to” videos for both situations. Additionally, you’ll find instructions for specific window styles, FlexScreen installation and removal videos, and mulling instructions. Some installation videos are also offered in Spanish, Polish, and Korean languages so they can be of assistance no matter your need. Installation made simple!

Installation Instructions


RELIABILT West 350P Patio Door Installation Instructions

RELIABILT West 350P Patio Door Installation Instructions

Size: 733.75 KB

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Replacement Window How to Measure and Install

Replacement Window How to Measure and Install

Size: 157.44 KB

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Mulling Instructions


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    Installation Videos (English Version)


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      Installation Videos (Spanish Version)


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        Installation Videos (Korean Version)


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          Installation Videos (Polish Version)


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            FlexScreen Installation Videos (English Versions)


            FlexScreen Full Screen Installation

            FlexScreen Half Screen Installation

            FlexScreen Rescreen / Repair

            Windows 101 Installation Videos

            Wood Window Opening Installation 101

            Window Measuring 101

            New Construction Installation 101

            Let's Get Started


            Schedule a free, no-obligation in-home consultation with Lowe's to get RELIABILT windows and doors for your home today.