Winter Special — 10% off installation for local homeowners. 5% for veterans.
Call for your free consultation today! 843.718.0299

We are South Carolina’s premier home exterior improvement company, specializing in windows, doors and private retreats.

Windows


No matter what’s happening outside, our windows will keep you safe and comfortable on the inside, so you can confidently enjoy your life with a great view.
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Doors

Our doors are designed and built to make every entrance grand, while emphasizing security and energy efficiency, with curb appeal that matches your style.
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Retreats

Create your own private escape with a beautiful pergola or enclosed patio, for more quality time, shared experiences and a lifetime of memories.
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The Harborline Advantage

Our products are designed to bring you exceptional value and quality of life by improving the exterior of your home. 

Manufacturer Direct

We get your products straight from the manufacturer, so you get top-quality products at an affordable price.

Craftsmanship

We only sell products that are designed to impress and built to last, so you can enjoy them both now and for many years to come.

Energy Efficiency

Designed to maximize efficiency, our products and installation process can help you save on energy costs, as much as 50%.

Investment Value

Between energy savings and curb appeal, your home’s value will go up as your energy bills go down.

Exceptional Service

From design, to installation, and beyond, we do everything we can to give you a great experience.

Lifetime Warranty

We stand behind our products and installations 100%, so if something is wrong, we’ll make it right.