Lowcountry's Choice for Replacement Windows, Doors, and Siding
The Window Source of the Lowcountry proudly serves homeowners across coastal South Carolina with top-quality vinyl window replacement and exterior door solutions designed for the region’s unique climate. From Charleston to Hilton Head, our energy-efficient windows are built to handle heat, humidity, and coastal weather—keeping your home comfortable and your energy bills low. With a commitment to honest pricing, expert installation, and local service you can trust, The Window Source of the Lowcountry helps you enhance your home’s beauty, value, and efficiency—one window at a time.
The Window Source of the Lowcountry
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843-894-6369
1301 Charleston Regional Pkwy
Charleston, SC 29492
Installing New Windows, Siding & More in
- ChatGPT said: Walterboro
- Summerville
- Sullivan’s Island
- Seabrook Island
- Ridgeville
- Port Royal
- North Charleston
- Mt. Pleasant (Mount Pleasant)
- Moncks Corner
- Ladson
- Kiawah Island
- Johns Island
- James Island
- Isle of Palms
- Hollywood
- Hilton Head
- Hardeeville
- Hanahan
- Goose Creek
- Folly Beach
- Edisto Beach
- Daufuskie Island
- Daniel Island
- Charleston
- Bluffton
- Beaufort
- Awendaw
- And More!
Windows
Entry Doors
Patio Doors
Siding
Storm Doors
Sliding Patio Door
Siding
Picture Window
Roofing
Entry Door
Gutters
Double Hung Window
Awning Window
Casement Window
Double Hung Windows
At The Window Source of the Lowcountry, we specialize in high-performance vinyl windows designed to stand up to the coastal South Carolina climate. From the salty sea air to the humid summers, our windows are built to last—resisting warping, cracking, and fading while maintaining their beauty year after year. Whether you’re replacing a few windows or upgrading your entire home, our products offer the perfect blend of style, energy efficiency, and durability.
Local Experts You Can Trust
As a locally owned and operated business, we’re proud to serve communities throughout the Lowcountry—including Charleston, Bluffton, Beaufort, and Hilton Head. Our team understands the unique needs of homes in this region and provides personalized recommendations to ensure you get the right fit for your style, budget, and comfort goals.
Honest Service and Lasting Value
At The Window Source of the Lowcountry, we believe in doing business the right way—with transparent pricing, professional installation, and no high-pressure sales tactics. When you choose us, you’re choosing a team committed to helping you make a smart investment in your home that pays off for years to come. Experience the difference of working with the Lowcountry’s trusted window experts today.
Real, Local Reviews From Happy Customers
5
“Quality windows at an affordable price. Love our windows! Talked to several companies, but The Window Source offered top notch windows at the best price. Sales and installation crew were very nice, knowledgeable and professional. They did a great job.”
David G
“The company to use if your needing window replacement, Fair pricing and honest fast work.”
Tom R
Window Source Q&A
Is it worth it to replace my windows?
Is it worth it to replace my windows?
Older windows are notorious for being leaky and inefficient. At The Window Source, we are constantly improving our technology to be more energy efficient. Installing new windows can realize up to an 80% return on investment when you sell your home. Coupled with the savings you’ll see on your energy bill, the cost of window replacement can often be quickly offset.
How do I know when to replace my windows?
How do I know when to replace my windows?
Anytime you notice damage on your windows, it is a good time to have them looked at by an expert. Damage can be caused by water, insects, and father time. Your old windows ar inefficient, unattractive, and can cause damage to your home, call our experts today!
How much will it cost to replace my windows?
How much will it cost to replace my windows?
The best way to determine the cost is to contract a professional and receive an in-home estimate. At The Window Source, our estimates are FREE to you.
What types of payment methods and financing do you offer?
What types of payment methods and financing do you offer?
We offer a variety of payment methods and financing options. Please contact us to hear our options.
What Warranty do you offer?
What Warranty do you offer?
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.