Marvin makes windows and doors for you and how you build. At Koopman Lumber, we know that means more than exceptional products – it’s also quick lead times at a great value.

In addition to lead times as low as 5 weeks, you’ll enjoy the highest quality fiberglass windows and doors at the best value of the year. Contact us now for a project estimate, and place your order by December 15 to take advantage of this rare Marvin Elevate Collection opportunity.

Take advantage today, fill out the form and get started on your next windows and doors project with Marvin! 

The picture depicts an open glass door that overlooks a body of water and a forest on the coastline.



What began as a family company built on an old-fashioned code of honesty, hard work, and service to their neighbors is now one of the world’s premier window and door companies. For everything from new construction to remodeling and replacements, to commercial building and even historical restorations, Marvin never takes shortcuts, and we always adhere to the highest possible standards and the highest levels of service. We stand behind every one of our products, every step of the way.

We make it our priority to be a partner to our customers through every step of the process, and go above and beyond what is expected. That includes making sure our products continue to live up to our high standards every single day.

The picture depicts an open glass door that overlooks a body of water and a forest on the coastline.

ultimate Sliding Door: Marvin Signature collection

A Complete Premium Selection

The new Marvin Ultimate Sliding French door G2 and Sliding door have been thoughtfully redesigned to complement Ultimate swinging doors. Whether you choose swinging or sliding operation, you can rely on a complete, end-to-end selection of premium doors to meet your highest expectations.

Other enhancements to Ultimate sliding doors include:
• New panel sizes and configurations for greater design flexibility
• New performance sill featuring improved aesthetics, water management, and easier installation
• New design options including interior/exterior glazing profiles and restyled hardware

When you install Marvin Ultimate doors, you’ll showcase beautifully crafted, remarkably designed statements that make for an ultimately stunning project. Please call or stop by our showroom to learn more. Contact us today for a project estimate!

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