MOUNT PLEASANT, SC • FAMILY-OWNED
Exterior Door Replacement in Mount Pleasant & Charleston, SC
Beautiful doors. Built for Lowcountry living.
From custom front entry systems to impact-rated sliding glass doors, Coastal Shield Window helps you choose the right style, protection and configuration for your home.
✓ 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 EXTERIOR DOORS
WHY COASTAL SHIELD
Exterior Doors Built for Lowcountry Homes
An exterior door in the Charleston area has to do more than look good. Heat, humidity, wind-driven rain, and coastal conditions can expose weaknesses in the door, jamb, and installation over time.
We regularly replace doors with rotted jambs, visible daylight around the frame, air gaps, poor operation, and aging materials. The details behind the finished door matter just as much as the door itself.
01
Rot-Resistant Materials
100% PVC jambs come standard on our exterior door installations, helping eliminate one of the most common sources of future rot and maintenance.
02
Clean, Tight Installation
Proper fit and sealing help eliminate daylight, drafts, difficult operation, and the loose, rickety feel that often comes with aging doors.
03
Designed for Your Home
Door swing, traffic flow, sidelites, glass, hardware, and configuration all matter. We help you think through those decisions before anything is ordered.
Premium materials aren’t an upgrade here. They’re part of how we believe the job should be done.
DOOR OPTIONS
Exterior Door Options for Your Home
From a new front entry system to a smoother sliding glass door, we help you choose a door that fits your home’s architecture, your everyday routine, and the level of storm protection you want.
Front & Entry Doors
Make the entrance to your home feel intentional. We install customizable Therma-Tru entry doors and complete entry systems with options for decorative glass, sidelites, transoms, colors, hardware, finishes, and impact-rated protection.
Sliding Glass & Patio Doors
Replace an aging or difficult-to-operate patio door with a smooth, secure system built for large openings and Lowcountry living. We install impact and non-impact sliding glass doors from PGT, ViWinco, and other trusted manufacturers.
Hinged Patio & Rear Doors
From single rear doors to French door configurations, we design exterior door systems around your home’s layout, style, and protection requirements.
Custom Entry Systems
Create a complete entrance with sidelites, transoms, decorative glass, and custom configurations. Andy helps you balance appearance, natural light, privacy, durability, and budget.
Customize It to Fit Your Home
We aren’t limited to a small catalog of preset packages. We’ll help you build a door system around your home’s architecture, priorities, and budget.
Colors & Finishes
Decorative & Clear Glass
Sidelites & Transoms
Grids
Hardware & Finishes
Door Configurations
INSTALLATION DETAILS MATTER
A Better Door Installation Starts Behind the Trim
A premium door won’t perform like one if the materials around it fail.
When we remove an existing door, we inspect the opening for deterioration and address rotten or damaged material within our scope before the new system is installed. Our exterior door installations use 100% PVC jamb material as standard, not as an upgrade.
We finish the interior with trim selected to blend naturally with your home, so the finished installation looks like it belongs there instead of looking like a replacement was simply dropped into the opening.
DESIGNED AROUND REAL LIFE
Your Door Should Work With the Way You Live
One of the most overlooked parts of replacing a door is how it affects the room around it. A door can look beautiful on paper but become frustrating if its swing blocks furniture, interrupts a walkway, or takes up usable floor space.
During your consultation, we look at the entire opening and how you actually use the space, not just the measurements. We’ll help you think through swing direction, configuration, glass, privacy, hardware, finishes, sidelites, and other details so the finished door works as well as it looks.
The door is only part of the project. The opening, jamb, trim, fit, and layout all matter too.
STORM PROTECTION
Impact vs. Non-Impact Exterior Doors
Both can be good options. The right choice depends on your home, location, budget, and how you want to prepare when a storm threatens the Lowcountry.
BUILT-IN PROTECTION
Impact-Rated Doors
Impact-rated exterior doors are designed and tested as part of a storm-protection system, giving homeowners protection without installing separate panels over the opening before a storm.
For many Lowcountry homeowners, the biggest advantage is simple: protection is already built into the door you use every day.
ANOTHER OPTION
Non-Impact Doors
Non-impact doors can still be an option depending on the home and location. Where impact protection is required, a non-impact opening needs an approved alternative method of protection.
That can mean permanent bolts fastened into the structure around the doorway so protective panels can be installed before a storm. Those attachment points remain visible and protrude from the surrounding area, which some homeowners find inconvenient or unattractive in an everyday entrance.
Not Sure Which One You Need?
You don’t need to figure it out before calling us. We will walk you through the requirements and the real-world differences in cost, appearance, convenience, and storm preparation so you can choose what makes sense for your home.
WHAT TO EXPECT
From Consultation to Finished Door
No handoff from a salesperson to someone you’ve never met. Our owner, Andy, stays involved from the first conversation through installation, so the details discussed in your home don’t get lost along the way.
01
In-Home Consultation
Andy looks at your existing door, measures the opening, talks through what’s working and what isn’t, and helps you compare styles, configurations, materials, and protection options.
02
Design & Custom Order
Once you’ve chosen the right door, we finalize the details and custom order it for your opening, including your selected glass, color, hardware, configuration, and impact protection.
03
Professional Installation
We remove the existing door, inspect the opening, address repair work within our scope, install the new system, and finish the surrounding trim. Many straightforward door installations can be completed in as little as half a day.
04
We Stand Behind It
Our involvement doesn’t end when installation day does. Coastal Shield backs the doors we install with our warranty, and if you have a question or concern afterward, you know exactly who to call.
How Long Does Door Replacement Take?
~6 Weeks
Typical Sliding Door Timeline
~8 Weeks
Typical Hinged Door Timeline
½ Day+
Many Installations
Timelines vary by manufacturer, product availability, configuration, permitting requirements, and the condition of the existing opening.
LOCAL WORK. LOCAL TRUST.
Exterior Door Replacement Across Mount Pleasant & the Lowcountry
We’ve completed exterior door projects throughout Mount Pleasant and the Charleston area, including Belle Hall, Park West, Rivertowne, Brickyard, Charleston National, I’On, Shem Creek, Wild Dunes, and surrounding Lowcountry communities.
WHAT HOMEOWNERS SAY
55+ Five-Star Google Reviews
Homeowners consistently mention communication, craftsmanship, clean installation, and the confidence that comes from working directly with the owner.
PEACE OF MIND AFTER INSTALLATION
We Stand Behind Your Door for as Long as You Own Your Home
Our relationship doesn’t end when the installation is finished. Coastal Shield Window proudly guarantees the windows and doors we install for as long as the original purchaser owns and resides in the home, subject to the terms of our warranty.
Coverage includes manufacturing defects as well as water leaks or necessary adjustments related to our installation. If something isn’t right, you aren’t calling a national customer-service line. You’re calling the same local company that installed your door.
THE COASTAL SHIELD DIFFERENCE
One Company. Before, During & After.
✓ Manufacturing defect coverage
✓ Installation-related water leak coverage
✓ Necessary installation adjustments
✓ A local team you already know
COMMON QUESTIONS
Exterior Door Replacement Questions, Answered
Do I need an impact-rated exterior door in Mount Pleasant or Charleston?
It depends on your home’s location, applicable building requirements, and how you plan to protect the opening during a storm. Impact-rated doors provide built-in protection, while some homes may use a compliant non-impact door paired with an approved protection method. Andy will explain what applies to your home during your consultation.
What’s the difference between an impact and non-impact door?
Impact-rated doors are designed and tested to resist storm debris as part of the door system itself. Non-impact doors may require separate storm protection, which can mean permanent attachment points around the doorway for approved panels. We’ll help you compare the difference in cost, appearance, convenience, and storm preparation.
How much does a replacement front door cost?
Exterior door pricing varies widely based on size, impact rating, glass, sidelites, transoms, hardware, finish, and configuration. Because those options can change the project significantly, the most accurate way to get a price is an in-home consultation based on your actual opening and design choices.
How long does exterior door replacement take?
Many straightforward door installations can be completed in as little as half a day, depending on the existing opening and any repair work needed. Sliding door projects can sometimes move from consultation to installation in about six weeks, while custom hinged doors are often closer to eight weeks. Manufacturer lead times and project complexity can affect timing.
Can you replace a rotten door jamb?
Yes. We inspect the opening when the existing door is removed and repair rotten or damaged material that falls within our scope before installing the new system. If we uncover something that requires another specialty trade, we’ll explain it clearly and can recommend someone qualified.
What type of jamb do you use?
100% PVC jamb material comes standard on our exterior door installations. PVC won’t rot the way traditional wood jamb material can, making it a strong low-maintenance choice for Charleston’s humid coastal climate.
Can I customize the color, glass, and hardware?
Yes. Exterior doors can be customized with colors, finishes, decorative or clear glass, grids, hardware, sidelites, transoms, and different configurations. We help homeowners narrow those choices down based on the home’s architecture, privacy needs, budget, and how the door will actually be used.
What brands of exterior doors do you install?
We frequently install Therma-Tru hinged and entry doors, along with PGT and ViWinco sliding glass doors. We can also source other manufacturers through our supplier network when another product is a better fit for the home or project.
Do you install sliding glass doors?
Yes. Sliding glass and patio door replacement is one of our core exterior door services. We install both impact and non-impact systems for patios and larger openings, including products from PGT, ViWinco, and other trusted manufacturers.
Can you change which direction my door swings?
In many situations, yes. Swing direction is one of the details Andy reviews during the consultation because it can dramatically affect traffic flow, furniture placement, and usable floor space. We’ll look at how the room functions before finalizing the configuration.
Do you install interior doors or garage doors?
No. Coastal Shield specializes in exterior replacement projects. We do not install interior doors or garage doors, and we do not provide door refinishing, painting, glass-only replacement, screen repair, or creation of new structural openings.
LOCAL • FAMILY-OWNED • OWNER-OPERATED
Ready to Find the Right Door for Your Home?
You don’t need to know exactly what you want before calling. We will look at your existing opening, talk through what’s working and what isn’t, and help you compare the options that make sense for your home.
No commissioned salesperson. No pressure. Just experienced advice from the person who will measure, order, and oversee your project.
Serving Mount Pleasant, Charleston, and surrounding Lowcountry communities.