[40+ Years of Experience]
Surrounded by the natural beauty of Northeast Tennessee, Erwin is an ideal place to create a living area that keeps you connected to the outdoors. The Window Source of the Tri-Cities provides professional sunroom installation in Erwin, TN, helping homeowners add bright, comfortable spaces they can enjoy through every season.
Our Joyce Oasis® all-season sunrooms combine expansive views with insulated construction designed for true four-season use. For homeowners throughout Erwin and Unicoi County, that means enjoying mountain scenery and abundant natural light without worrying about summer heat, winter temperatures, rain, or insects limiting how often the space can be used.
From a peaceful place to read to an additional gathering area for family and friends, we'll help you create a sunroom designed around the way you want to enjoy your home.
Ready to create a new favorite room?
Contact us today to schedule your free estimate.
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The Window Source of the Tri-Cities provides professional exterior home improvement services designed to improve your home's comfort, efficiency, and curb appeal.
We provide professional installation of high-quality, durable, energy-efficient windows designed to improve comfort and enhance your home’s appearance.
Upgrade your home with stylish and secure entry and patio doors, featuring ProVia doors known for their energy efficiency and customizable design options.
Improve your home’s exterior with durable, low-maintenance siding designed to protect your home while enhancing curb appeal.
Create a more comfortable and functional living space with a custom sunroom designed for year-round enjoyment, natural light, and lasting value.
Interested in upgrading your windows, siding, doors, or sunroom?
Get in touch today to schedule your consultation.Adding a sunroom gives Erwin and Unicoi County homeowners a way to experience more of the scenery around their homes while gaining functional indoor space. The Window Source of the Tri-Cities designs each project around the individual property rather than relying on a standard, one-size-fits-all layout.
The Joyce Oasis® Collection is built specifically for year-round use, combining insulated walls, high-performance glass, and engineered roofing into one complete system. With multiple styles and colors available, we can also coordinate the new addition with your home's existing exterior for a more cohesive finished look.
Our team is there throughout the project to answer questions, explain your choices, and keep the process moving from the initial consultation to installation.
Curious how a sunroom could work with your home?
Contact our team today to learn more about your options.
Adding a custom sunroom should be an exciting experience. Our team manages every step of the project while keeping you informed from beginning to end.
Our process includes:
We visit your home, evaluate the space, discuss your goals, and recommend the best sunroom design.
Choose from available Joyce Oasis® styles, colors, and glass options to complement your home.
Our team takes precise measurements to ensure your custom sunroom is manufactured specifically for your home.
Your sunroom is built to your home's exact specifications using premium Joyce Oasis® components.
Our Certified Master Installers complete your installation with exceptional attention to detail.
We review the finished project with you to ensure every detail meets your expectations.
Ready to start planning your sunroom?
Book your time today for a free in-home estimate.
A professionally installed four-season sunroom offers benefits you'll enjoy throughout the year.
Contact us today to discover how a custom sunroom can transform your home.

The right sunroom can give you the open feeling of an outdoor space without sacrificing the everyday comfort you expect inside your home. At The Window Source of the Tri-Cities, we focus on both sides of that equation, pairing a high-performance sunroom system with professional planning and installation.

A successful project starts with understanding what you want the finished room to accomplish. We discuss your ideas, evaluate your available space, and help you make choices that support how you'll actually use your sunroom once it's complete.
Our experience with windows and exterior improvements gives our team specialized knowledge of glass, framing, sealing, and thermal performance. We bring that expertise to each sunroom installation while keeping you informed throughout the process.
We install Joyce Oasis® sunrooms featuring a premium all-vinyl wall system, ClimateMaster® Roof, and SmartShield insulated glass with SuperSpacer warm-edge technology. Our Certified Master Installers assemble each custom-manufactured system with careful attention to fit and finishing.
From helping you choose the right design to completing the final installation, our team is committed to creating an inviting new space that complements your Erwin home.
Can you help me decide what size sunroom works for my Erwin home?
Yes. We'll evaluate your available space during the in-home consultation and discuss different possibilities based on your property, goals, and how you plan to use the room.
Can I use my new sunroom as a home office or hobby room?
Absolutely. Because Oasis® sunrooms are designed for year-round comfort, they can work well as offices, hobby spaces, reading rooms, entertaining areas, or other flexible living spaces.
How does the Oasis® system help reduce condensation?
SmartShield insulated glass incorporates SuperSpacer warm-edge foam spacer technology, which helps improve thermal performance and reduce condensation around the edges of the glass.
Does The Window Source take care of local permits in Erwin?
Yes. Our team handles the required permitting process and coordinates the necessary steps before installation.
Will you show me samples before I choose my sunroom?
Yes. During your consultation, we'll walk you through available Joyce Oasis® glass, colors, and other options so you can see and compare your choices before finalizing the project.
Contact The Window Source of the Tri-Cities today and book your free, no-pressure consultation.
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