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About The Window Source of the Eastern NC

Who We Are:

We have been working in the building and construction industry for over 30 years.   Enjoy peace of mind knowing that you are working with a fully insured and licensed North Carolina general contractor.  The Window Source of Eastern NC is locally owned and operated but have the resources of a national company.  This allows us to offer the best warranty in the business backed by the largest manufacturer of building materials in North America.

OUR PROMISE AND GUARANTEE is to treat every customer with the same care and consideration that we would our own family!


Hello, my name is Seth Casillas. My wife, Taryn and I first moved to Greenville in 2018 while she attended graduate school at ECU. We fell in love with Eastern NC and made the decision to stay here and raise our beautiful daughter. I look forward to building The Window Source to be of service to everyone in our community. 

Terry Willets- We have been blessed to live in and experience many states and cities since getting married in 1998.  The southern hospitality of Eastern NC won over our hearts…..So 13 years ago we decided to stay here permanently and raise our family of 10.  We look forward to serving our customers and community for many more years to come.

Peace of Mind Assurances:

Lifetime Warranty

All Window Source products come with a limited lifetime warranty. You will have peace of mind knowing that you will only make this investment in your home once. Ask your window consultant for details.

Independently Certified NFRC Labels

All Window Source products come with voluntary National Fenestration Rating Council (NFRC) labels so that you can compare with confidence. You can rely on the labels and forget about all the sales gimmicks that you may hear from companies charging much higher prices. In fact, the US EPA relies on NFRC data to set its ENERGY STAR guidelines.

ENERGY STAR® Rated Products

Be assured that you will gain valuable energy savings when you choose our High Performance Glass option. All of our products ordered with High Performance Glass will meet ENERGY STAR® guidelines in all US climate zones.

No other source gives you such peace of mind and ease when choosing new windows for your home. Join our growing family of satisfied customers at The Window Source where America shops for windows and doors.

Call The Window Source For A Free Estimate Today!