#1 for Windows, Doors, & Siding
in Eastern North Carolina
Lifetime Warranty | top rated windows & Doors | Where Eastern North Carolina Shops For Windows & Doors
Premium windows, Doors, & Siding
Serving Greenville & All of Eastern North Carolina
Best Price Guarantee
0% Down
0% Interest
Pay After Completion
Best Price Guarantee
0% Down
0% Interest
Pay After Completion
Premium windows, Doors, & Siding
Serving Greenville & All of Eastern North Carolina
The Eastern North Carolina Window Experts
With over 30 years of experience in the building and construction industry, The Window Source of Eastern NC is proud to be a fully insured and licensed North Carolina general contractor. As a locally owned and operated business backed by the resources of a national company, we’re able to offer our customers the best warranty in the business—supported by the largest manufacturer of building materials in North America. Our promise and guarantee is simple: we treat every customer with the same care and consideration we would our own family.
Owners Seth Casillas and Terry Willets have made Eastern North Carolina their home. Together, we’re committed to serving our neighbors and building a business that makes a lasting impact in the community we love.
Our 3 Step Process
Our install and replace services are designed for a hassle free experience, ensuring your comfort at every stage. Here’s how it works:
Schedule Your Free Appointment
Contact us or complete our online form to schedule your complimentary in-home consultation.
In-Home Consultation
An expert will visit your home to take measurements, offer personalized recommendations, and provide a customized instant quote.
Installation
We’ll handle the professional installation for you, all backed by our trusted warranty. Count on us for a smooth, worry-free experience!
Our 3 Step Process
Our install and replace services are designed for a hassle free experience, ensuring your comfort at every stage. Here’s how it works:
Schedule Your Free Appointment
Contact us or complete our online form to schedule your complimentary in-home consultation.
In-Home Consultation
An expert will visit your home to take measurements, offer personalized recommendations, and provide a customized instant quote.
Installation
We’llinstall your beautiful new window, all backed by our installation warranty. Trust us for a seamless experience!
Our 3 Step Process
Our install and replace services are designed for a hassle free experience, ensuring your comfort at every stage. Here’s how it works:
Schedule Your Free Appointment
Contact us or complete our online form to schedule your complimentary in-home consultation.
In-Home Consultation
An expert will visit your home to take measurements, offer personalized recommendations, and provide a customized instant quote.
Installation
We’ll install your beautiful new window, all backed by our installation warranty. Trust us for a seamless experience!
What Your Neighbors Are Saying
"We needed to have a number of windows replaced, and are so happy we went with Window Source. Seth and his team made it such a seamless experience. They are super knowledgeable, worked with us to understand what our needs were with new windows so that we could make sure we were ordering the right ones for our project. For the actual installation, the team onsite was super nice, tried to be as tidy as they could be for replacing windows and had great attention to detail. We couldn't be happier with the end result, and plan to use them in the future if we need to update more of our windows!"
Julia Peters
"Terry was prompt in responding to my call. He made an appointment and was on time. He had excellent ideas about our windows. The windows arrived before the estimated date and he made every effort to have them installed before my son moved in. His crew did an excellent job and cleaned up the area when they were finished. I also asked him for his recommendation about replacing our door and he said the door was fine and offered suggestions to make it look better because it was still good and didn't need replacing. He's honest and didn't overcharge us and worked with us to get exactly what we wanted-- and he offered advice about blind installation that made it easy for me to do-- highly recommend."
Sharda Persaud
"I needed 5 windows replaced. Everything was ordered and installed in a timely professional manner. The windows look great. They were able to get the windows ordered, delivered, and installed very quickly. They were the first company to send some one out to provide a quote too. From the quote to installation took about 3 weeks. It was fast, which I appreciated because I wanted to check it off my list. I only wanted to do 5/15 of my windows and they didn’t pressure me to do all 15 at once, which was nice. I’ll hire them again when I’m ready to replace the next phase of windows!"
Melissa Adamson
"Seth and Terry and their installation crew did an awesome job of replacing a great deal of leaking, original wood windows in our family home. We were very pleased with their initial prompt response of inquiry to the speedy reception and installation of new windows! They put in the work and take ownership of getting a job done right! Well done! We will recommend to all our neighbors and use them in the future."
Susan Piercy
"The Window Source recently replaced the second story windows in our foyer. It was no small task, but Seth and Octavio and his team were diligent in getting it completed efficiently and correctly. Also, the Window Source is the most punctual and communicative company we’ve ever worked with, as they respect their customer’s time and value their business. We will not hesitate to use them for any future window replacements."
Cindy Saylor
"Terry and Seth installed six windows and three doors in my beach house on Emerald Isle. They did a great job! The windows and doors are good quality and look excellent. Despite running into a few hiccups due to the age of the house, they worked hard and I paid exactly what was quoted. I will definitely hire them again for future jobs."
Jason F
Schedule Your Consultation Today
Our experts are ready to provide you with on-site consultation with no obligation. We look forward to helping you create the space of your dreams.
Schedule Your Consultation Today
Our experts are ready to provide you with on-site consultation with no obligation. We look forward to helping you create the space of your dreams.
Superior Quality
We offer a diverse array of durable products from a wide variety of brands. We don't just use the best materials, we ensure all construction and installation meets code requirements and is built to last.
Skillful Team
Our experts are detail oriented, and have over 40 years of operating experience. All projects are completed by licensed contractors who take pride in their craft.
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 property once. Ask your window consultant for details.
Exceptional Service
We are committed to providing superior customer service in every aspect. Read our review at various locations across the country and see what your neighbors and others are saying about The Window Source!
Window Installation & Replacement
Double Hung Windows
Awning Window
Picture Window
Bay Window
Bow Window
Decorative Window
Double Hung Windows
Awning & Casement Window
Picture Window
Bay Window
Bow Window
Decorative Window
Siding Installation & Replacement
Beaded Lap Siding
Board & Batten Siding
Clapboard Siding
Dutch Lap Siding
Horizontal Siding
Lap Siding
No Groove Vertical Siding
Scallops (Half-Round)
Shingle Siding
Shingle & Shake Siding
Textured Beaded Lap Siding
Textured Dutchlap Siding
Vertical Siding
Door Installation & Replacement
Entry Doors
French Doors
Patio Doors
Storm Doors
Entry Doors
French Doors
Patio Doors
Storm Doors
The Easy Way to Shop for Windows, Doors, & Siding
It can be difficult to find the right company for sliding patio doors, double-hung windows, entry doors, and more. The Window Source has been a trusted supplier in Eastern North Carolina.
The best way to get the process started is through our free estimate. Let’s schedule a time for an on-site free estimate. Our experts will help you pick the perfect options to meet your window and door replace needs.
Custom-made, Professional Installation, Lifetime Warranty
Your professional estimator will work with you to confirm the best windows and doors to match your features, style, and budget. It’s important for us to meet your expectations and the first step to success is an estimate.
Get in touch today and get an estimate.
Take Advantage of Our Easy Payment Plans
Upgrade your windows and finance them through one of our preferred authorized financial groups. We can provide you with a no-hassle, no-obligation estimate outlining the costs. Interested in learning more about our financing plans? Get in touch today.
Speak With An Expert
Do you have a question or need more information? Don't hesitate to contact our window, door, and siding experts!