MOUNT PLEASANT, SC • FAMILY-OWNED
Replacement Windows in Mount Pleasant & Charleston, SC Area
Replacement windows for Mount Pleasant, Charleston and the surrounding Lowcountry, personally measured and owner-supervised from consultation through installation.
✓ Your consultation is with the owner, not a commissioned salesperson.
15 Years
Window & Door Experience
55+
Five-Star Google Reviews
Licensed
& Insured
Local
Family-Owned
EXPLORE REPLACEMENT WINDOWS
WHY COASTAL SHIELD
A Different Kind of Window Company
Many window companies separate the sale from the actual project. You meet one person, someone else measures, and another crew shows up for installation. Coastal Shield works differently. The person you meet with is the person responsible for getting the project right.
Owner Measured
Andy, the owner, personally measures every opening before your windows are ordered.
Owner Supervised
Andy stays involved through installation and final walkthrough.
Window Specialists
Windows and doors aren’t one service on a long remodeling menu. They’re what we do.
No-Pressure Advice
We’ll recommend what makes sense for your home, not what produces the biggest invoice.
No franchise fees. No corporate overhead. No commissioned salespeople. Just experienced advice and an owner who stands behind the work.
CHOOSING YOUR WINDOWS
Impact or Non-Impact? We’ll Help You Choose
Not every Lowcountry home has the same storm-protection requirements, and the most expensive option isn’t automatically the right one. We’ll help you understand what applies to your property and how different choices affect protection, convenience and budget.
Impact Windows
Impact-rated windows use laminated glass systems tested to resist wind-borne debris. For homeowners who want built-in storm protection without installing separate coverings before a storm, they can provide a convenient long-term solution.
Non-Impact Windows
High-performance non-impact windows can still provide excellent energy efficiency and everyday performance. Where required, they must be paired with an approved method of protecting the openings during a storm, such as a compliant plywood and fastening system or another approved protection method.
Not sure which one your home needs? We’ll explain your options based on your home, location and priorities.
WINDOW STYLES
Windows That Fit the Way You Live
The right window isn’t just about appearance. How you use the room, whether you need ventilation, the view and your budget all matter. We’ll help you choose the right style for each opening instead of treating every window the same.
Double Hung
Both sashes operate for flexible ventilation and easier cleaning.
Single Hung
A simple, cost-effective option with an operable lower sash.
Picture
Fixed glass maximizes views and natural light and can be a smart choice where ventilation isn’t needed.
Casement
Hinged windows open outward for excellent ventilation and expansive views.
Slider
Easy horizontal operation makes sliders a good fit for wider openings.
Awning
Hinged at the top, awning windows allow ventilation while offering some protection from light rain.
THE RIGHT PRODUCT FOR YOUR HOME
Products Chosen for Your Home, Not a Sales Quota
Most of the windows we install are high-performance uPVC systems, and we frequently recommend ViWinco because its products are a strong fit for many Lowcountry homes.
But we’re not tied to one manufacturer. Through our supplier network, we can source other products when another window better fits your home’s architecture, performance requirements or budget.
Impact & Non-Impact Options
Energy-Efficient Glass
Custom Configurations
Multiple Manufacturers
WINDOWS IN THE LOWCOUNTRY
Windows Have a Tough Job in the Lowcountry
Windows in coastal South Carolina face heat, humidity, salt air, driving rain and high winds year after year. Product choice matters, but so does understanding how those conditions affect the existing window opening and surrounding materials.
Heat & UV
Strong sun and prolonged heat affect both indoor comfort and window materials. The right glass package can reduce unwanted heat transfer while helping protect interior finishes and furnishings.
Humidity & Moisture
Humidity can be especially hard on older wood windows and surrounding materials. Proper installation and durable frame materials help reduce the risk of water intrusion and deterioration.
Salt Air
Homes closer to the coast need products and hardware selected with corrosive coastal conditions in mind.
Storms & Wind
Wind pressure, driving rain and storm protection all matter in coastal construction. We’ll help you choose products appropriate for your home’s location and requirements.
Something we see often: Older Lowcountry homes may have wood windows wrapped in exterior aluminum cladding. Once moisture gets behind the cladding, the wood underneath can begin deteriorating long before the damage becomes obvious from inside or outside.
What happens if we find rotten wood?
Hidden damage isn’t unusual during window replacement. If the repair is within our scope, we’ll show you what we found and repair the affected framing or surrounding materials before installing the new window. If the problem requires another specialty trade, we’ll explain that clearly and can recommend someone qualified.
Want to understand what our climate does to windows over time? Learn how Charleston’s heat, humidity, salt air and storms affect windows and doors, and what homeowners can do to protect them.
MEET THE OWNER
Meet the Window Specialist Behind Coastal Shield
Andy Yagecic has spent 15 years specializing in windows and doors, with a construction background that started long before that. After working for both small businesses and larger companies, he started Coastal Shield Window to give homeowners a more personal experience: honest recommendations, direct access to the person responsible for the work, and accountability from the first measurement through the final walkthrough.
Today, Coastal Shield is a family-owned Mount Pleasant company serving homeowners throughout the Lowcountry. Andy still personally consults with customers, measures every project and oversees every installation.
What Local Homeowners Are Saying
★★★★★ 50+ Five-Star Google Reviews
WHAT TO EXPECT
From First Conversation to Finished Windows
01
Meet With The Owner
Your consultation is with the owner, Andy. He’ll walk through your project, discuss your goals and give you straightforward recommendations.
02
Measure & Design
Andy personally measures every opening and finalizes window styles, configurations and glass options.
03
Order & Prepare
We order your custom windows and handle applicable permitting and project preparation.
04
Professional Installation
Our experienced crew installs your windows with Andy overseeing the project and making sure the details are handled correctly.
05
Final Walkthrough
We inspect the finished work, make sure everything operates correctly and leave your home clean before calling the project complete.
About 6 Weeks
Typical consultation-to-installation timeline
1–3 Days
Typical installation for most projects
Product availability, permitting and project complexity can affect timing.
Pricing & Peace of Mind
What Will My Windows Cost?
Window pricing depends on size, style, glass, impact requirements, accessibility and what’s happening around the existing opening.
Instead of hiding behind “call for pricing,” we’ve created a detailed Charleston-area window cost guide and calculator to help you understand what affects your investment before we ever meet.
We Stand Behind Our Work
Our windows and doors are covered by Coastal Shield Window for as long as the original purchaser owns and lives in the home. Covered manufacturing defects, leaks and necessary installation adjustments are repaired or replaced according to our warranty terms.
Our responsibility doesn’t end when the check clears.
LOCAL WORK
Replacement Windows Across Mount Pleasant & the Lowcountry
We’ve replaced windows in homes throughout Belle Hall, Park West, Rivertowne, Brickyard, Charleston National, I’On, Shem Creek, Wild Dunes and communities across the Charleston area. From newer coastal homes to decades-old wood-window replacements, every project gets the same owner-led attention.
COMMON QUESTIONS
Replacement Window Questions We Hear All the Time
How much does window replacement cost in Mount Pleasant, SC?
Window replacement pricing depends on the size and style of the windows, whether you choose impact or non-impact glass, the number of openings and the complexity of the installation. Our online pricing guide and calculator can give you a realistic ballpark before you schedule a consultation.
Do I need impact windows in Mount Pleasant?
That depends on your property’s location, applicable building requirements and how you plan to protect your openings during a storm. Impact-rated windows provide built-in protection, while some homes can use compliant non-impact windows paired with an approved protection method. We will explain what applies to your home during your consultation.
What are the best windows for Charleston’s heat and humidity?
High-performance uPVC windows are a strong fit for many Lowcountry homes because they won’t rot the way older wood windows can. Quality glass packages, proper seals and professional installation also matter when you’re dealing with Charleston’s heat, humidity and coastal conditions.
How do I know when my windows need replacing?
Common signs include windows that no longer close or lock correctly, drafts, fog or moisture between panes, visible deterioration, soft or rotten wood and declining comfort or energy efficiency. If you’re unsure, we’ll tell you whether replacement makes sense or whether the issue may have another solution.
Do I need to replace every window at once?
No. Many homeowners replace windows in phases based on condition, priorities or budget. We can help you identify which openings should be addressed first and where it makes sense to wait.
How long does window replacement take?
Most Coastal Shield projects take about six weeks from consultation to installation, depending on product availability and permitting. Once the windows arrive, most installations are completed in one to three days. Larger or more complex projects can take longer.
Do I need a permit to replace my windows?
Permitting requirements vary by municipality and project. When a permit or HOA approval is required for your window replacement, Coastal Shield handles the applicable process as part of the project.
What window brands do you install?
We frequently install ViWinco windows because their product lines are a strong fit for many Lowcountry homes. We are not tied to one manufacturer, though, and can source other window products through our supplier network when another option better fits your home’s design, performance requirements or budget.
What happens if you find rotten wood during installation?
Hidden wood deterioration is not unusual in older Lowcountry homes. If the repair is within our scope, we’ll show you what we found and repair the affected framing or surrounding materials before installing the new window (additional charge may apply). If the damage requires another specialty trade, we’ll explain that clearly and can recommend someone qualified.
What warranty does Coastal Shield provide?
Coastal Shield Window covers our windows and doors for as long as the original purchaser owns and lives in the home, subject to the terms of our warranty. Covered manufacturing defects, leaks and necessary installation adjustments are repaired or replaced according to those terms.
LOCAL • FAMILY-OWNED • OWNER-OPERATED
Ready to Talk Windows?
Get experienced advice directly from the person who will measure, order and oversee your project. No commissioned salesperson and no high-pressure presentation.
Serving Mount Pleasant, Charleston and the surrounding Lowcountry.
