Business Details
Energy-Efficient Windows & Doors in Bristol, PA
OKNA Windows has built an industry reputation by combining state-of-the-art equipment, advanced technologies, and dedicated craftsmanship. Our name has become synonymous with innovation, quality, and performance in window and door manufacturing. Advanced automated equipment and computer-controlled production lines ensure a high standard of quality control while meeting large volume requirements quickly. We prioritize environmental responsibility, offering ENERGY STAR-certified products that reduce energy consumption and carbon footprints. Our HeatSeal Spacer technology improves insulation, minimizing heat loss and condensation while maintaining comfort.With a Lifetime Limited Warranty covering manufacturing defects, we stand by our products and provide comprehensive support for long-term reliability. Our team focuses on delivering precision-engineered solutions tailored to climate-specific needs, balancing energy efficiency with aesthetic appeal. We empower customers through educational resources on product operation, maintenance, and energy performance. Our commitment to sustainability extends to manufacturing processes that align with eco-conscious practices. By partnering with certified dealers nationwide, we ensure localized expertise and personalized service for every client.
Services
Double Hung Windows
Slider Windows
Casement Windows
Patio Doors
Energy Star Windows
Highlights and features
- We offer ENERGY STAR-certified windows with advanced heat-reflective coatings.
- Our HeatSeal Spacer technology reduces condensation and improves insulation.
- We provide a Lifetime Limited Warranty on manufacturing defects.
- Our computer-controlled production ensures consistent quality and precision.
- We prioritize eco-friendly manufacturing and energy-saving product design.
Associations and certifications
- ENERGY STAR
- National Fenestration Rating Council (NFRC)
Services
Double Hung Windows
Double Hung Windows feature two vertically sliding sashes that allow for versatile ventilation and easy cleaning. Our precision-engineered units combine durable vinyl frames with advanced glazing options to enhance energy efficiency. These windows provide excellent insulation while maintaining traditional aesthetics suitable for various architectural styles.
Casement Windows
Casement Windows open outward with a crank handle, offering unobstructed views and maximum airflow. Our models use reinforced frames and multi-point locking systems for security and durability. The tight seal when closed ensures superior energy performance and weather resistance.
Patio Doors
Patio Doors combine glass panels with sturdy vinyl frames for seamless indoor-outdoor transitions. Our energy-efficient designs feature reinforced rollers and weatherstripping to minimize air leakage. Available in multiple configurations, they provide both functionality and aesthetic appeal for modern homes.
Energy Star Windows
ENERGY STAR-certified windows meet strict efficiency guidelines to reduce heating and cooling costs. Our models incorporate low-E coatings, argon gas fills, and warm-edge spacers to optimize thermal performance. These products help homeowners achieve sustainability goals while maintaining comfort.
Slider Windows
Slider Windows operate horizontally with smooth-gliding panels for easy ventilation. Our designs feature fusion-welded corners and heavy-duty tracks for long-lasting performance. The large glass areas maximize natural light while maintaining energy efficiency through advanced insulating technologies.
Questions
What warranty does OKNA offer on its windows and doors?
OKNA provides a Lifetime Limited Warranty covering manufacturing defects in materials and workmanship for residential owners.
How do OKNA's windows improve energy efficiency?
Our windows use HeatSeal® Spacer technology, low-conductance materials, and spectrally selective coatings to minimize heat transfer and reduce energy bills.
Are OKNA products environmentally friendly?
Yes. Our energy-efficient designs lower carbon emissions, and manufacturing processes prioritize sustainable practices to reduce environmental impact.
How can I find an OKNA dealer near me?
Visit our website to locate a certified OKNA dealer who can assist with product selection and installation services in your area.
What window styles does OKNA offer?
We provide double-hung, slider, casement, patio doors, and specialty windows like bay/bow systems in customizable configurations.
Reviews (4)
Mike M.
May 17, 2022
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Great window manufacturer who stands behind their product. Replaced 30+ windows in the entire house and a patio door 8 years ago. Have had a few windows with failed glass and now had all replaced under warranty at no cost to us. Could not be happier with the product and the support. We live on large acreage in an area exposed to the elements. Even when it's -20 outside the windows are warm to the touch! Love them!
Nicola Testa
Apr 24, 2022
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3/2/2022 Purchased 3 Okna sliding patio doors. Cost $9,500. Highest model - Super Deluxe Package, Elegante, triple pane. Two years later, 3 of the large glass panels started to show cloudy contamination in-between the glass. Contacted the authorized installer and Okna will provide the replacement panes, but they would not cover the installation cost of $325. Replacement was due to the poor manufacturing quality of the product and now I am stuck with the cost to replace the defective product. Contacted Okna and they refused to cover the installation cost.
Hope I don't need to replace them again in 2 years. Okna should fully stand by their products. Shame on you Okna. Update 4/5/2022. I contacted Okna again, as they requested in their response to the original review. After further discussions Onka, we agreed to a satisfactory resolution. It did however take a month of waiting to receive it. But bottom line, Onka finally did make it right.
Hope I don't need to replace them again in 2 years. Okna should fully stand by their products. Shame on you Okna. Update 4/5/2022. I contacted Okna again, as they requested in their response to the original review. After further discussions Onka, we agreed to a satisfactory resolution. It did however take a month of waiting to receive it. But bottom line, Onka finally did make it right.
Jc Rewards
Feb 23, 2022
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Cheap windows! Quality does not meet industry standards! I purchased 8 windows a few years ago, had them installed and ALL THE CHEAP, PLASTIC LOCKS ON THE WINDOWS ARE NOW BROKEN SIMPLY BECAUSE THE PLASTIC CLIPS CANNOT HANDLE THE ELEMENTS! DON'T BUY THESE CHEAP WINDOWS.
Thomas Barringer
Jan 13, 2022
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You will not find a better window and door manufacturer in the country. OKNA windows stands behind their products and brings exceptional customer service to their clients!
