WHAT WE OFFER
Vinyl Windows – OKNA
When it comes to vinyl windows for Raleigh’s dynamic climate, we believe it’s important for homeowners to understand that there is an extremely wide variety of quality available on the market. On one hand, this can be good for homeowners because options that blend high-quality windows with reasonable value are out there, OKNA being the cornerstone example.
But this can also be bad news, because there are some vinyl windows that exhibit poor construction, often evident in a “cheap plastic” appearance, and offer poor energy efficiency and reduction in noise polution.
You can sometimes tell these poor windows by their unrealistically low prices – but not always. Unfortunately, some exterior remodelers will offer to sell you a mediocre window and charge you quite a bit for it. We don’t see that as fair.
Choose the Premier Vinyl Window Installers Around Raleigh
Choosing OKNA is only half the equation. For proper performance, these premium vinyl windows must be installed with precision. At Raleigh Windows & Siding, we specialize in installing OKNA vinyl windows in and around Raleigh NC, ensuring every product meets its full potential.
Ready to upgrade your home’s energy efficiency and appearance with OKNA vinyl windows? Contact us today for a free consultation or quote.
Proudly Serving Raleigh and Surrounding Areas
At Raleigh Windows & Siding, we’re proud to provide expert window replacement services across the Triangle area. Whether you’re in the heart of Raleigh or a nearby community, our team is here to help.
We proudly serve: Apex, Durham, Cary, Holly Springs, Chapel Hill, Wake Forest, Fuquay-Varina, Morrisville, and many more locations across central North Carolina.
Not sure if we serve your area? Just reach out—we’re happy to help!
Why We Recommend OKNA Enviro-Star and Insul-Tec Vinyl Windows
While we often suggest fiberglass windows as the best overall investment, many homeowners specifically request vinyl options. For those clients, we confidently recommend the Enviro-Star and Insul-Tec Series from OKNA—two of the highest-performing OKNA vinyl window lines on the market.
- Enviro-Star Series: OKNA’s premium vinyl window. This model offers exceptional energy efficiency, high-definition screen options, and some of the lowest air infiltration rates available.
- Insul-Tec Series: Delivers nearly the same airtight window seal and performance as the Enviro-Star but at a lower price point, making it a great value.
Every OKNA window is built to meet rigorous industry performance standards, including NAFS certification. That means your windows are tested for structural integrity, air and water infiltration, and long-term durability—providing real peace of mind.
No matter which you choose, you’ll get high-end quality, superior thermal protection, and vinyl windows that enhance curb appeal.
Key Features of OKNA Vinyl Windows:
- Exceed ENERGY STAR® standards
- Among the most air-tight vinyl windows available today
- Durable, precision-welded frame corners
- ClimaGuard™ glass coating with 11 layers for optimal climate control
- Warm edge spacer technology reduces condensation and improves insulation
- Classic “old world” design enhances both interior and exterior aesthetics
- Optional ThruVision Plus screens improve visibility while keeping insects out
All of our windows and doors are manufactured from high-quality materials and are backed by a Transferable Lifetime Limited Warranty.
Vinyl Windows Built for Performance
At Raleigh Windows and Siding we are downright fanatical when it comes to quality. But we also realize that it isn’t just about our installation standards – it is also about the companies that manufacture the products we install.
We love OKNA windows for Raleigh NC because the company holds themselves to the highest manufacturing standards and offers the best warranties.The Limited Lifetime Warranty guarantees that the vinyl will never crack, warp, corrode, or blister.
Of course, we will provide you your warranty IN WRITING, so you will get peace of mind.
OKNA Window Screens
OKNA Windows offers a factory-installed half screen with a heavy-duty handle. Screens are removable from the inside for convenient storage. We also offer ThruVision Screens improving the view thru the window protecting the interior from insects and allowing perfect ventilation.
ThruVision Plus is our fiberglass improved visibility screen. This product does for windows and doors what high-definition technology has done for television viewing; it improves the view by making it sharper and more vivid.
Industry Standard Screen
ThruVision Plus Screen
Window Warranties
All of our windows and doors are manufactured from high-quality materials and are backed by a Transferable Lifetime Limited Warranty.
OKNA Window Certifications & Standards
All OKNA windows and doors meet rigorous North American Fenestration Standard (NAFS). Certification is performed by The Keystone Certification Program that is ANSI-accredited to ensure that our products are manufactured as represented by their certifications, which are based on tests performed by accredited laboratories in accordance with the AAMA/WDMA/ CSA 101/IS2/A440 – North American Fenestration Standard (NAFS). The NAFS standard defines a rating scale for fenestration product performance and requires that components used in window & door assemblies also meet stringent component standards. Certification includes annual inspections to ensure the factory quality management system also meets rigid standards – that translates to homeowner peace of mind.