We’re excited to announce a new addition to our product lineup at Energy Windows LLC: the Marvin Essential™ Collection!
If you’ve been thinking about upgrading your windows, this line is definitely worth your attention. Built with durable fiberglass inside and out, Marvin Essential windows are designed to handle tough weather, daily use, and everything in between—without warping, cracking, or fading over time.
Why We’re Excited About Marvin Essential Windows
The Marvin Essential Collection checks all the boxes for today’s homeowners:
- Sleek, clean lines for a modern aesthetic
- Strong fiberglass construction that outperforms vinyl, wood composites, and aluminum in durability and longevity
- Low-maintenance design with clean corners and fewer parts
- Energy-efficient glass options to help lower heating and cooling costs year-round
- Backed by Marvin’s trusted performance and warranty
These windows are a great fit for homeowners looking to blend performance and design—especially if you want something that’s both practical and stylish. They’re ideal for contemporary homes, remodels, and anyone who wants a low-fuss window with lasting performance.
Why Fiberglass Windows?
Fiberglass is quickly becoming a go-to material in the replacement window industry, and for good reason:
- It expands and contracts at nearly the same rate as glass, reducing stress on seals and improving energy efficiency.
- It’s 8x stronger than vinyl, meaning it can hold up better against the elements.
- It resists warping and cracking, even in extreme temperatures.
That means fewer repairs, better insulation, and windows that look great for years to come.
Want to Learn More?
You can check out the full Marvin Essential line here, or contact us at Energy Windows LLC to see how these windows could work in your home. Whether you’re upgrading old windows or designing your dream remodel, we’re here to help you choose the best options for your space.

