Business Details
32 Years
experience
Energy-Efficient Vinyl Windows & Doors for Your Home
OKNA Windows has established itself as an industry leader over 30 years of operation, combining advanced manufacturing technology with dedicated craftsmanship. Founded in 1994 as a small facility in Bristol, Pennsylvania, the company has grown to serve homeowners across 25 states through a network of certified dealers. Our products meet rigorous Energy Star, AAMA, and NFRC certifications, backed by a Transferable Lifetime Limited Warranty. We specialize in high-quality vinyl windows and patio doors with customizable options for both residential construction and replacement applications. Our state-of-the-art manufacturing facility in Bristol, PA, employs over 200 team members dedicated to delivering energy-efficient solutions that combine traditional aesthetics with modern performance.Through strategic partnerships with innovative glass manufacturers, we ensure our products maintain industry-leading thermal efficiency and durability. Our commitment to environmental responsibility is demonstrated through eco-friendly production practices and energy-efficient product design. With a focus on customer satisfaction, we provide comprehensive support through product selection, installation guidance, and post-purchase service. Our technical innovations include HeatSeal warm edge spacer systems, multi-point locking mechanisms, and advanced weatherstripping technologies that enhance both security and energy performance. This combination of experience, technological investment, and quality control has made OKNA a trusted name in the window and door industry.
Services
Double Hung Windows
Slider Windows
Casement Windows
Patio Doors
Bay & Bow Windows
Details
- Year established: 1994
Highlights and features
- 30 years of dedicated window and door manufacturing expertise
- Family-owned business with personalized customer service approach
- Products meet rigorous Energy Star, AAMA, and NFRC certifications
- State-of-the-art manufacturing facility with advanced quality control
- Nationwide network of certified dealers for local support
Associations and certifications
- Energy Star
- AAMA
- NFRC
Services
Double Hung Windows
Our 800 series double hung windows combine traditional wood aesthetics with modern vinyl performance. Featuring beveled profiles, multi-chamber construction, and HeatSeal warm edge spacers, these windows offer superior thermal efficiency and durability. The double weatherstripping system and magnetic seals significantly reduce drafts while maintaining a sleek appearance with hidden balance covers.
Casement Windows
CA700 casement windows feature a multi-point locking system for enhanced security and weather resistance. These windows open 90 degrees for maximum ventilation and easy cleaning, with optional WOCD safety latches that limit opening to 4 inches. The triple weatherstripping system prevents air, water, and noise infiltration while maintaining a classic aesthetic.
Patio Doors
8800 and 8200 series patio doors combine structural integrity with energy efficiency. The Elegante model offers modern aesthetics with enhanced security features, while the Forester model replicates traditional wood appearance with vinyl maintenance benefits. Both feature durable rollers and weatherstripping systems for smooth operation and thermal performance.
Bay & Bow Windows
Custom-made bay and bow windows create expanded spaces with multiple configuration options. Available in 10, 15, 30, and 45 angles, these windows feature insulated headboards, silicone-free construction, and foam-insulated mullions. The versatile designs accommodate various architectural styles while maintaining energy efficiency.
Energy Efficient Solutions
Our energy-efficient windows incorporate HeatSeal warm edge spacers, low-E glass coatings, and advanced weatherstripping systems. These features reduce condensation risk by 40% and improve thermal performance with U-values as low as 0.20. The environmentally safe paints and durable finishes contribute to long-term energy savings and sustainability.
Questions
Where can I buy OKNA windows and patio doors?
Our products are available through certified dealers. Contact us to locate the nearest authorized dealer for purchase and installation.
How do I evaluate window energy performance?
Look for the NFRC label showing U-Value, Solar Heat Gain Coefficient, and Visible Light Transmittance ratings for accurate performance metrics.
What are the benefits of vinyl windows?
Vinyl windows offer superior durability with resistance to rotting, rusting, and peeling while maintaining energy efficiency and requiring minimal maintenance.
Do replacement windows pay for themselves?
Energy-efficient vinyl windows reduce heating and cooling costs while requiring virtually no maintenance, providing long-term cost savings that offset initial investment.
What customization options are available?
We offer multiple interior and exterior color options, hardware finishes, grid patterns, and specialty glass configurations for personalized design solutions.
What warranty coverage applies to products?
All windows and doors include a Transferable Lifetime Limited Warranty covering materials and performance when installed by certified professionals.
