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Stanek Windows by Great Day Improvements
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Great Day Improvements Patio Enclosures by Great Day Improvements Stanek Windows by Great Day Improvements
Reps available: Mon-Thur 9am-8pm
Fri 9am-7pm  |  Sat-Sun 9am-1pm EST
800-230-8301
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What is the Stanek Difference?

The Stanek Difference

Quality, Custom, Affordable Replacement Windows with Endless Options

We offer the best value for your investment. Stanek® Windows are custom built, just for you. Our windows are of exceptional quality, offer superior performance and energy efficiency, and are beautiful, affordable and easy to maintain. More importantly, we control the process from start to finish. We design, manufacture, install, guarantee and service your windows.

We Design Your Windows

1. We Design Your Windows

Windows are a big investment. They are a permanent, visual and functional part of your home that you'll use daily for years to come. That is why we custom design each and every window around you. We offer endless options to customize your windows just the way you want them including a variety of window styles, custom shapes and sizes, interior and exterior color options, hardware finish options, energy-efficient glass options, designer glass etching options and custom between-the-glass grid patterns.

We Manufacture Your Windows

2. We Manufacture Your Windows

Unlike many window companies, we make our own windows. It's one of the things that sets us apart. As the window manufacturer, we control the process from start to finish assuring the highest quality at every step. It also allows us to offer the widest range of options to meet your needs. Made by the hard working men and women of our community, Stanek windows are made with exceptional attention to detail and superior quality materials. Not only will your window look beautiful and timeless, but it will function and perform effortlessly.

We Install Your Windows

3. We Install Your Windows

The proper installation of a window is vital to its long-term performance. Without proper installation, your windows won't have adequate structural support and over time, could fail. Our factory-trained, Stanek Windows installation staff provides expert installation, delivering unbeatable quality control and long-term performance of your windows. In addition, we treat your home with the utmost respect and do everything we can to minimize disruption of your space. In short, our crews are considerate and clean up after themselves. Plus, during the cold winter months, our crews use a cold-weather installation process to minimize your home's exposure to the elements.

We Guarantee Your Windows

4. We Guarantee Your Windows

You can rest easy knowing your window investment is certified and guaranteed. Stanek windows are independently tested and certified for structural and thermal performance in an accredited laboratory and have earned among the highest ratings in the industry. Our windows carry not one, but three certification labels; a NAMI Structural Certification Label, a NFRC Certification Label and an ENERGY STAR® Label. Plus, we confidently stand behind our custom-manufactured products with a limited lifetime warranty for peace-of-mind protection. As the manufacturer of our own windows, should you experience an issue with one of our products, you work with us directly, not a third party.

We Service Your Windows

5. We Service Your Windows

Our service doesn't stop once your new windows are installed. If there's ever an issue with your windows at any time, we're here to help. Our trained service technicians are professional, courteous, and each and every one is a Stanek Windows expert. Don't just take our word for it – read what our happy customers have been saying about their recent experiences.

Let's get started, for FREE

We'd love to work with you, even if you don't end up purchasing windows from us.

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What People Are Saying About Stanek Windows

Don't just take our word for it, listen to our many satisfied customers. Read testimonials and hear from real people who love our quality replacement windows.

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