Infinity Partner Detail

Nex-Gen Windows and Doors

Infinity from Marvin hand-selected us as their Independent retail partner based on our expertise and passion for serving our community.

Infinity Replacement Windows

Infinity Windows from Nex-Gen Windows and Doors in Fort Collins, CO

Nex-Gen Windows and Doors in Fort Collins, CO is a family-owned and operated business with a commitment to excellence for each and every customer. With over 35 years of experience in the window and door industry, we have learned the secret of setting ourselves apart from every other company. We recognize the importance of offering the highest quality, time-proven, and trusted brands of leading-edge products at competitive prices. Honestly, that’s the easy part! Because everyone knows that a great window or door is worth nothing if it’s not upheld by expert installation and outstanding customer service.

Find out the advantages of family-owned service and products from the expert representatives at Nex-Gen Windows and Doors and built-for-life Infinity replacement windows.

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Infinity Diamond Partner
Special Offer Today

$750 Off Installation With Purchase of 5 or more windows

Schedule a consultation with Nex-Gen Windows and Doors to learn how Infinity can help you bring new life to your home.
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Built to last with Ultrex fiberglass

Infinity from Marvin fiberglass windows and doors are built with Ultrex® fiberglass making Infinity windows stronger than vinyl windows and requiring less maintenance than wood windows.

COMPARE INFINITY Vinyl Vinyl/Wood Composites (Fibrex®) Infinity Ultrex® Fiberglass
DURABILITY
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GOOD BETTER BEST
STABILITY
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GOOD BETTER BEST
STRENGTH
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GOOD BETTER BEST

Fibrex® is a registered trademark of Andersen Corporation.

Explore Infinity’s fiberglass window and patio door collection

Browse our complete replacement window patio door collection to learn how Infinity from Marvin fiberglass windows offer durability, style and strong performance.

Explore Infinity’s fiberglass window and patio door collection

Browse our complete replacement window patio door collection to learn how Infinity from Marvin fiberglass windows offer durability, style and strong performance.