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Here’s How a Good Window Warranty Works

Window warranties can often be misunderstood by homeowners, especially if they find out that their warranty doesn’t cover all aspects of their replacement windows. It’s partially the reason why they have the term “Limited Lifetime” in their warranties, so it doesn’t hurt to ask the right questions first before you proceed with purchasing your energy-efficient windows.

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Limited Lifetime Warranty Explained

These warranties are commonly offered by professional window contractors. They’re often provided by the manufacturers and cover defects in regard to the aesthetics and performance of your purchased window.

A Limited Lifetime Warranty may only apply to the parts that need to be replaced, so it doesn’t readily include the labor required to fix the window. This will also vary between replacement window manufacturers, so it helps to ask your sales representative to understand how their window warranty will work.

The Duration of the Warranty Coverage

Common warranty lengths typically include 5, 10, 15 and 20 years. The length of your warranty will also depend on the type of installation you’re having done. For example, a warranty for glass and a warranty for roofing materials will typically be different. If you’re installing multiple products, such as roofing and windows, be sure to discuss the exact coverage of each product with your hired contractor.

Hiring the Right Contractor

It’s important that you research and find out what types of replacement windows best fit your home. This includes knowing the architectural style of your home to narrow down your choices. And, as for finding the right contractor, it’s recommended that you go for companies that have a good reputation in your area, so you can be confident that they’ll get the job done right.

When it comes to installing casement windows, Renewal by Andersen® of St. Louis is the name you can trust. Call us at (314) 332-2364, or fill out our convenient contact form. We serve our customers in Missouri, including St. Charles and nearby areas.

Reviews

"Have nothing but great things to say about the window installation done today by John Hutchinson with Renewal by Andersen! He was friendly, personable and professional and did a great job installing. He did a great job of putting down roller pads and tarps with next to zero clean up. Would highly recommend them for any window replacement needed!"

Mark V.
Jun 26, 2025

"We had our new Renewal by Andersen windows installed on June 5th & 6th, 2025 and we LOVE them! The quality, beauty, and functionality are best-in-class! The whole experience from dinner presentation at Lazy River Grill, the initial in-home sales consultation and measurement, the regular communications from the salesman and concierge, and the installation team’s professionalism and skills made the process so seamless. This is the second home we have opted for Renewal windows and doors and have been delighted both times! Thank you Renewal by Andersen STL! "

Jeff C.
Jun 7, 2025

"I had an excellent experience with RbA STL. Our designer, Courtney, was great and the finished product is awesome. The installation was easy and the gentlemen left our home cleaner than they found it upon entering. I would recommend RbA STL - you’ll get tired from their constant contacts, and that’s a GOOD thing!"

Jeramy D
Jun 3, 2025

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