OKNA Windows Engineered for Long-Term Performance
Along the South Carolina coast, your windows have to do more than look good. They need to stand up to salt air, humidity, high winds, and long, sun-filled days without sacrificing performance. That’s why homeowners turn to Contract Exteriors for OKNA casement windows. Built for strength, energy efficiency, and smooth operation, OKNA casement windows seal tightly against coastal weather while still allowing fresh air to flow when you want it. Installed by a local team that understands the demands of coastal construction, these windows are designed to protect your home for years to come.
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Window Installation
Window Replacement
OKNA Casement Window Features & Benefits
Casement windows are hinged at the side and open outward with a simple crank, giving you full control over airflow and ventilation. Their tight seal and single-panel design make them highly energy-efficient and ideal for keeping out coastal humidity, wind, and rain. With smooth operation and a clean, timeless look, casement windows combine performance and style, making them a smart choice for South Carolina homes.
Here are a few advantages of our OKNA casement windows:
Feature multi-point locking systems for added security to help protect homes against break-ins and strong coastal winds
Offer reliable energy efficiency that may reduce cooling and heating costs, using advanced glass packages and tight weather seals
Are exceptionally durable and able to withstand salt air exposure, driving rain, and sudden temperature changes common to the region
Have low-maintenance vinyl frames that retain color and resist warping, plus specialty glass options to filter UV and glare
Our casement windows are fully customizable and come in several sizes, frame colors, hardware finishes, and grille designs, making it easy to match style preferences and architectural needs.
Custom sizing is also available for unique window openings, including solutions for difficult dimensions often found in older neighborhoods. Every detail is chosen with the coastal South Carolina lifestyle in mind.
What Sets Contract Exteriors Apart?
Since 2009, Contract Exteriors has grown from local roots to become a trusted name for window installation in South Carolina. We’re a family-owned and operated company committed to quality and exceptional service.
Recognition includes the GuildQuality Service Excellence Guildmaster Award for nine consecutive years and the Better Business Bureau Torch Award for Ethics, reflecting transparency, craftsmanship, and deep community connection. Our company’s reputation is built through communication, project transparency, and a focus on meeting the demands of homeowners living near the coast.
Service Areas in Coastal South Carolina
Contract Exteriors installs casement windows in homes across the South Carolina coast. Core service areas include Charleston, Myrtle Beach, James Island, and Mount Pleasant. To see the complete list of communities we serve, visit our service areas page.
Frequently Asked Questions About Casement Windows
Request a Casement Window Estimate
Ready for a more energy-efficient, attractive window solution? Book a consultation or request a free estimate for OKNA casement windows today. Take advantage of our extensive local experience, expert installation, and some of the region’s strongest workmanship and manufacturer warranties.
See Our Work Across Your Neighborhood
With over 1,300 completed projects, chances are we’ve worked on a home near you. Click around the map to explore real results.
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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