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OKNA 500 Series - Double Hung Windows

OKNA 500 Double Hung Window - Wonder ChoiceThere are more than a few reasons why OKNA 500 Series windows are regarded among the best-selling windows anywhere in Western NY.  Combining the reliability and performance of a foam-filled window, with the energy-efficiency features needed to lower monthly heating & cooling bills, OKNA 500 Double-Hung windows are a perfect option for those seeking looks, reliability and energy-efficient performance.

  • Insul-Tec
  • Superior U-value thermal performance
  • 1000% improved air infiltration prevention
  • Innovative warm-edge non-metal Heatseal spacer reduces condensation
  • Triple-weatherstripped sashes with a foam-filled frame
  • Gorgeous Colonial lines form an exquisite appearance

OKNA 500 Series - Deluxe

Warm Edge Dual Heat Shield Argon Technology with foam filled frame
NFRC U-Factor: 0.25
Air Infiltration: 0.02
Solar Heat Gain: 0.30

OKNA 500 Series - Super Deluxe

Warm Edge Triple Heat Shield Argon Technology with foam filled frame
NFRC U-Factor: 0.19
Air Infiltration: 0.02
Solar Heat Gain: 0.26

OKNA 500 Series - Super Deluxe with Krypton

Warm Edge Triple Heat Shield Krypton Technology with foam filled frame
NFRC U-Factor: 0.15
Air Infiltration: 0.02
Solar Heat Gain: 0.26
Overview - Options & Accessories - Performance

We understand that choice plays a huge role when shopping for windows in Rochester.  To make sure you get exactly the look you're after, Wonder Windows offers these windows in four distinct colors.  If there's a specific color you've just got to have, we can special order your color from a seemingly-endless pallet of thousands of pantones.

Durability, long-lasting performance, energy-efficiency, environmentally safe paints and precisely the perfect color; if this is what you demand from your windows, OKNA 500 Series are the perfect option.

A robust 3.75" welded mainframe is at the backbone of the OKNA 500 Series double-hung windows.  They're designed to resist the most common forms of New York weather, while looking great for years in the process.


All OKNA 500 Series double-hung windows feature strong foam internal insulation.  This ensures that your new or replacement windows will give you the peace of mind your family needs, for as long as you have them.

Double Hung Window Corner


Double Hung Window insulation


The smooth turning action and tamper-resistent cam design, make the 500 Series OKNA windows the easiest to open and close, while ensuring many years of worry-free Rochester window performance.


For even greater security and protection, the 500 Series double-hung windows can be installed with an optional auto-locking mechanism.  It's easy to use, affordable and helps you get the most from your replacement windows.

Double Hung Window Heavy duty lift handle


okna 500 double hung latch


The OKNA 500 Series incorporates an innovative gasket bulb system, which helps seal in heat and cold air, while providing better acoustic and sound dampering.


The ventilation latches on the 500 Series from OKNA, are spring loaded and designed to provide the highest level of user-friendliness and reliability.

Double Hung Window water drainage


okna 500 double hung window latch


A mortised sill dam is attached directly to the window jamb, which further increases both strength and effectiveness, while strongly discouraging gthe formation of leaks and condensation.


The fully-integrated lift rail on the OKNA 500 Series, is just one of many features responsible for its clean stylish appearance.  The perfect union of window performance and visual appeal.

Double Hung Window water drainage


Double Hung Window rail