10% Off Your Entire Home Project +
No Interest + No Payments for 24 Months.
OKNA Windows For Premium uPVC Windows & Doors
Experience the Pinnacle of Window Technology
Exclusively Available at The Window Place Plus
Why OKNA Windows Stands Above the Rest
Since 1980, OKNA Windows has revolutionized the window industry by focusing exclusively on manufacturing the highest quality uPVC windows. Their commitment to innovation, energy efficiency, and craftsmanship has made them the preferred choice for homeowners seeking the absolute best in window technology.
OKNA's Exclusive Technologies
ForeverSeal™ System
Fusion-welded frames and sashes create an impenetrable barrier against air and water infiltration, ensuring decades of trouble-free operation.
ThermalMatrix™ Frame
Multi-chambered uPVC extrusions with optimal wall thickness provide maximum structural integrity and thermal performance.
PrecisionFit™ Manufacturing
Every window is built to your exact measurements within 1/8″, eliminating gaps and ensuring perfect installation every time.
CoreMatrix™ Glass System
Triple-pane glass with dual argon gas chambers and warm-edge spacers delivers industry-leading thermal performance.
The OKNA Windows Series We Offer
600 Classic Series
Quality Meets Affordability
Features:
- Energy-efficient dual-pane glass
- U-Factor as low as 0.30
- Standard Low-E coating
- Argon gas fill
- Cam-lock hardware
- Limited lifetime warranty
Perfect for: Budget-conscious homeowners, rental properties, and basic replacements
600 Classic Series Performance
U-Factor | 0.30 |
SHGC | 0.27 – 0.40 |
Air Infiltration | < 0.02 cfm/ft2 |
Sound Rating (STC) | Up to 30 |
Glass Panes | Double |
Frame Chambers | 3 |
Window Style Options
Double Hung
Classic versatility
Casement
Maximum ventilation
Sliding
Space-saving design
Awning
Rain-or-shine ventilation
Picture
Unobstructed views
Bay & Bow
Expanded space
What Makes OKNA Windows Different?
When it comes to choosing the right windows, a clear window comparison can highlight the features that set OKNA apart. Here’s why they’re a cut above the rest:
100% Custom Manufacturing
No stock sizes. Every window is precision-built to your home’s exact measurements, ensuring perfect fit and maximum efficiency.
Fusion-Welded Everything
While competitors use screws or adhesives, OKNA fusion-welds all frame and sash corners for superior strength and zero air infiltration.
Multi-Chamber Technology
Up to 7 insulating chambers in frame extrusions create dead air spaces that dramatically reduce heat transfer.
Intercept® Warm-Edge Spacer
U-shaped steel spacer with sealant provides superior gas retention and reduces condensation at glass edges.
Heavy-Duty Hardware
Stainless steel and zinc die-cast components ensure smooth operation for decades, not years.
Lifetime Everything Warranty
Glass breakage, uPVC components, hardware, screens – all covered for life. Even labor for first 2 years.
The OKNA Windows Lifetime Promise
The Most Comprehensive Warranty in the Industry
Lifetime warranty against defects, cracking, peeling, blistering, or corroding
Lifetime coverage for seal failure AND accidental glass breakage
Lifetime warranty on all locks, handles, and operating mechanisms
Lifetime coverage on frames and mesh (even pet damage)
2 years coverage on installation-related issues. But at Window Place Plus, we extend this labor warranty to Lifetime!
Full warranty transfers to next homeowner
Installation Excellence
The Window Place Plus Advantage
As an authorized OKNA dealer, we give you peace of mind knowing your new windows are installed by a certified team with the experience to do the job right. From carefully removing and disposing of your old windows to making sure your new ones are properly sealed and insulated, we take care of the details so you don’t have to worry. We know how important it is to feel confident in the people working on your home, which is why our work is backed by a lifetime warranty on both materials and labor so you can enjoy lasting comfort and peace of mind.
Transform Your Home with OKNA Windows
Experience the ultimate in energy efficiency, comfort, and beauty.
Contact The Window Place Plus today by clicking the button below for your free in-home consultation.
What Our Customers Are Saying
Great service and excellent pricing. Windows are great and look fantastic. I could not recommend more. If you need a painless experience without pushy salesman or prices that are astronomical, window place plus is your best choice!
Window Place Plus replaced our front door and did a great job. They were great to work with from the sales process to the install. Both our sales person, Jeff; PM, Rob; and installer, Tom were all awesome and incredibly helpful, communicative and friendly. I'll definitely be using them again in the future when we're ready to replace our siding and windows.
They did a great job. Highly recommend them they did exactly what they said they would plus Lifetime warranty on the window. You can’t beat that. I’ll definitely use them again for other windows in the future!
Jackie and Sergio were an absolute pleasure to work with. Their representative was very informative and the windows they install are beautiful and efficient! 5 stars
Thrilled with our new front door from The Window Place Plus. Tomasz was very helpful in selecting the perfect front door for our home. The choices Provia provides is unmatched and I couldn’t be more pleased with the install. I wanted to preserve our original 100 year old side lights and trim and they were able to install our new door no problem.
Had all windows in house replaced. It was a great experience from start to finish. Sales man was very knowledgeable, the windows were installed perfectly. The work crew knew what they were doing and it showed. They were responsive to any concerns I had and I am very happy with the results
Wonderful experience with The window place plus from beginning to end. It’s hard to find reliable contractors that show up and stay informative. The team was great!!! Would recommend them to everyone who is looking for window installation.
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