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Professional Window Installations in South Carolina
Windows do more than frame a pretty view; they protect your home, regulate comfort, and play a big role in energy efficiency. In South Carolina’s coastal climate, where salty air, heavy rains, and humid summers are part of daily life, quality windows are not optional — they’re essential.
Unfortunately, many Lowcountry homes still rely on outdated windows that leak air, stick when opened, and do little to keep energy bills under control. If your windows are drafty or worn, chances are you’re paying more for less comfort.
With industry-leading OKNA windows and a team of experienced installers, Contract Exteriors makes window installations and replacements a simple and stress-free process. Whether you’re in Charleston, Myrtle Beach, or anywhere along the coast, we’ll help you upgrade to windows that stand strong against the elements while elevating your home’s style and livability.
The Benefits of Investing in a Professional Window Installation
Investing in new windows offers more than just a fresh look. The benefits ripple through your life in ways that are both practical and rewarding. Some of the biggest advantages of window replacement and installation in Charleston and Myrtle Beach include:
Energy Efficiency
Modern OKNA windows insulate against South Carolina’s humid summers and mild winters, helping you maintain indoor comfort while lowering energy bills.
Noise Reduction
If you live near a busy road, golf course, or beachside nightlife, new windows can keep unwanted noise outside where it belongs.
Durability
Our window systems withstand the challenges of say air, high winds, and heavy rain. Built to withstand weather-related wear, they provide you with peace of mind year-round.
Easy Operation
Say goodbye to the struggle of stuck or warped windows. OKNA windows glide smoothly and lock securely, making everyday use effortless.
Increased Home Value
Beyond comfort, replacement windows improve curb appeal and marketability. Whether you’re planning to sell or stay put, they’re a smart investment in your home’s future.
Together, these benefits create a home that feels more comfortable, efficient, and welcoming — qualities every coastal South Carolina homeowner can appreciate.
Discover our financing options for window replacements.
Choose the Perfect Window Style for Your Home
No two homes are the same, and your windows should reflect that. With OKNA’s wide range of window designs, Contract Exteriors provides custom window installation in Charleston and Myrtle Beach to fit your home’s architecture, lifestyle, and design goals.
Every style is built with performance in mind, from easy operation to low-maintenance finishes. With a wide variety of colors, trim options, and glass packages, you can match your new windows to your home’s character while enjoying modern comfort.

Double Hung Windows
A classic choice for Lowcountry homes, these windows feature two sashes that slide open for flexible ventilation and easy cleaning. Their timeless design seamlessly integrates into historic Charleston neighborhoods, offering the performance of modern materials.

Slider Windows
Perfect for sunrooms or modern coastal designs, slider windows open horizontally and provide wide, unobstructed views. Myrtle Beach homeowners love them for bright, breezy spaces.

Casement and Awning Windows
Hinged on the side and opening outward, casements capture coastal breezes beautifully. Small but mighty, awning windows are great for bathrooms, kitchens, or pairing with larger windows.

Bay and Bow Windows
Stunning architectural features that add light, space, and panoramic views, ideal for backyards or coastal scenery.
Our Window Installation Process
At Contract Exteriors, we believe upgrading your home shouldn’t be stressful. That’s why we’ve developed a clear, efficient process to ensure your residential window installation goes smoothly from start to finish:
Free Consultation – Our certified installers visit your home, listen to your goals, and provide expert recommendations.
Custom Measurement and Product Selection – We take precise measurements and guide you through styles and finishes to ensure the perfect fit.
Professional Installation – Our skilled crews remove old windows, prep openings, and install your new OKNA windows with precision.
Final Walkthrough and Quality Check – We confirm every window operates flawlessly and ensure you’re fully satisfied before wrapping up.
We treat your home with care, minimize disruption, and leave you with beautiful, durable windows you’ll enjoy for decades.
Your Trusted Window Installers in Coastal South Carolina
Many companies offer window installation in Charleston and Myrtle Beach, but not all deliver the same level of expertise or customer experience. Here’s why homeowners choose Contract Exteriors:
Local Experience
15+ years serving Charleston, Myrtle Beach, and surrounding communities.
Award-Winning Service
From the BBB Torch Award for Ethics to Guildmaster with Distinction, our recognition reflects our dedication to homeowners.
Premium Products
We install OKNA windows for unmatched energy efficiency and durability.
Transparent Communication
Project managers keep you updated throughout the entire project, from consultation to completion.
When you choose Contract Exteriors, you’re not just buying windows; you’re partnering with a company that puts your home and peace of mind first.

Schedule Your Residential Window Installation Today
Your home deserves windows that are as reliable as they are beautiful. Contract Exteriors makes the process simple, with expert guidance, top-quality OKNA windows, and installation teams you can trust. If you’re ready to boost your home’s comfort and curb appeal, schedule your free consultation today. We’ll help you take the next step toward windows that last.
Up To 10% Off All Projects

We Use and Are Certified to Install the Most Reliable Window Products & Brands





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Frequently Asked Window Installation Questions
Contract Exteriors is a James Hardie Guild Quality Customer Service Award winner and certified by the Vinyl Siding Institute. We pride ourselves on providing top-notch customer service for all our clients. Here are some answers to frequently asked questions about the services we provide.
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Window Resources for South Carolina Homeowners
Charleston’s warm, humid climate is ideal for outdoor living, but this lifestyle can also take a serious toll on When Hurricane Ian skirted the South Carolina coast, Myrtle Beach saw wind gusts topping 85 mph—and plenty of damage left behind...
A well-maintained deck isn’t just about curb appeal—it’s about safety, comfort, and increasing the value of your Summerville home. But when your outdoor space starts showing wear, how do you know if it’s time for a full replacement or...
Are you budgeting for a new deck installation at your South Carolina home? The weather in coastal areas can be brutal on your home’s outdoor surfaces...
Outstanding Reviews
Brooks was my contractor on the project. He was awesome! He was there with me every step of the way! Eugenia was very helpful in the office and assisted me in getting the HOA approval. Jason explained the warranty process and even brought me a cake!
Everyone we came in contact with was very cooperative and easy to work with. It was a pleasant experience from the first online chat. They listened to us and helped solve any issues we were concerned about
Wow, this company goes above and beyond. From the very first reach out to the very last interaction once the job was completed. Everything was done first class. The quality of work, the constant communication and level of service was like nothing I’ve ever experienced with any contractor. I priced out a couple different contractors compared to contractor exteriors and I will tell you I would have paid more just to have this experience with them. I had Jonathan as my project manager and he was exceptional.
Very happy with our new Timbetech front porch deck and steps with AZEK facia and risers. Everyone at CE was responsive and very professional explaining every step in detail! We have several homeowners in our community who have already asked for contact info info. Jonathan is a very good project manager and ensured we were satisfied with the quality, cleanliness, and appearance of our new front porch! Thank you!
In choosing a company to replace our deck, we researched and decided to use Contract Exteriors. We definitely made the right choice. We are very pleased with the results. Special thanks to Brooks, our Project Manager, who kept us updated and informed everyday.
Contract Exteriors did a great job for me. The entire group was very responsive, and my deck project turned out fantastic. My project, as all projects, had some surprises that were handled professionally and promptly. Randy, Brooks, and the office staff were great throughout the process. They proactively kept me informed on the status of the project. I never had to call twice to get a question answered or ask for an accommodation.
We couldn't be happier with contract exteriors and the job they did. Our beach house looks brand new with the new Hardie board and white trim. EVERYONE was friendly, well mannered, professional, and was always ready to answer any questions that we had. Miguel and his crew did an excellent job. Brooks the project manager was wonderful, and also Chad who helped us from the very beginning, also the girls in the office. We would not hesitate to use them again.
This company did an amazing job on my siding project. From start to finish they were very professional, helpful, and on time. Eugenia clearly communicated the whole process to me before they even started the project and Brooks was always available to answer my questions. He even came and ensured the cleanup was perfect and finished up the exterior lighting. Even after the project was finished this company ensured communicated to ensure everything was perfect. Super pleased. Thank you!
Everything about this group was extremely professional. Renovations can be challenging but they carefully made sure that their products and our original structures fit together seamlessly. We are truly looking forward to our new elegant deck that will be essentially maintenance free for many, many years. We will definitely use this company for future projects.
Matt Kuzdrall made our whole experience of purchasing two new roofs for our buildings at the Children's Recovery Center so easy. Matt was professional and had all the answers to any questions we had. He has followed up since our new roofs have been installed to make sure everything is still great. Matt is awesome and I would recommend him to anyone I know looking for a new roof.




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