Avoid using Lowes when purchasing windows, especially if you plan on having them do the installation. I just got done with a 2 year (you read that correctly) process dealing with Lowes on the installation of 11 Pella windows and a sliding glass door. It was the worst experience I have had with any vendor or contractor ever (and I have worked with lots, as a property manager). Here's a list of things I had to deal with: -Zero communication with regard to delays cause by supply chain issues: I had to continuously call for updates in spite of promises to let me know and was continuously misled by them with regards to when windows would arrive; -When 90% of my order finally arrived, Lowes insisted on delivering it to my house (taking up a space in my garage during winter) but refused to install anything until the final piece came in (which would have been 3 months later). It took literally dozens of phone calls and arguments to get the installation done after a month a half. And when the final window came in (a large picture window), they refused to install it for another 3 months while awaiting some minor parts for windows they already put in (which took them minutes to repair). -There were 4 levels of people to deal with on installation, the store where I purchased, Lowes Installation Services Department, the independent contractor they use to hire independent installers, the team of installers hired. It is a literal maze where nobody seems to know who's in charge of what. And when there is a problem, they try to get the same team of installers to fix it, but that team also works for other contractors and may be booked out for a month or more. -The independent installers were not familiar with Pella products and lost parts, failed to install some flashing required by building code and didn't seal around one window adequately, causing a water leak and bulging new paint that I am now responsible for having to redo. -After writing the CEO and complaining after 14 months into the process, I was assigned to an Executive Customer Relations Case Manager who basically had no real authority and was just a hand holder who did some internal nagging for me but really couldn't move things along. (Remember, this was a 2 YEAR PROCESS.) -As a final insult, after promising me for 6 months that I would receive at least a 15% refund as compensation for all of their incompetence, delays, failures, and hassles, at the end, Lowes suddenly lowered that compensation offer to 4.5% and said I could take it or leave it (maybe the company is in real financial straits). Even had Lowes given me 20% back, I wish I would have purchased directly from Pella or used another contractor for installation. Lowes required me to pay up front for everything. They lured me in with good prices during a Pella sale, but any money that I saved was lost to literally hundreds of hours dealing with them. Please do yourself a favor and don't use Lowes for any kind of installation.