Windows & Doors

Beautiful windows and doors complete the look of your home, outside and in. Plus, new or replacement windows and doors can increase your home’s value and add energy-efficiency. Whatever your style or budget, we will help you find new or replacement windows to match your family’s needs.

We are proud to carry a wide selection of Marvin®, from Marvin Signature®, Marvin Elevate®, and Marvin Essential collections. We also carry Atrium windows and doors as well as Smarter windows and doors.

If you are looking for high-quality front doors and interior doors, GNH recommends ThermaTru, Simpson, Brosco, Masonite, and Rogue Valley. Speak with our experts today about window placement, style and finish options, door selection, hardware, and much more.

Visit a showroom to explore window and door options, and try them out for yourself.

11513 Route 32
Greenville, NY 12083
Store Hours
M-F: 7am-5pm
Sat: 8am-4pm
Sun: 9am-2pm

July 4th: Closed
5477 Route 23
Windham, NY 12496
Store Hours
M-F: 7am-5pm
Sat: 8am-2pm
Sun: Closed

July 4th: Closed
898 New Loudon Road
Latham, NY 12110
Store Hours
M-F: 9am-5pm
Sat: By appointment only
Sun: Closed

July 4th: Closed

*Early and late hours available by appointment.
Meet the Experts

How to Measure your Windows and Doors for Replacement

Measuring windows and doors can be a one-person job, but it will go a lot faster with a helper. Read the Full Article on Marvin’s website.

Financing and Credit Application

Tackle those bigger remodeling projects or handle everyday home repairs and maintenance with confidence at GNH. We’re pleased to offer several consumer and commercial credit options to meet your needs, including a traditional cash account, a secure credit card account or an in-house credit account with a 30 day repayment term.

Financing & Credit Options

Helpful Articles

Have you ever considered updating your windows or front door? Are you adding a new deck, and now need to pick out a door to install with it? Browse our articles for more information on the choices available to you.


Request a Quote

Looking for something in particular for a special project? Request a Quote with GNH and one of our representatives will contact you about the special needs of your upcoming project. Complete the form below.

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