discover why the Okna SERIES 800 double hung replacement window is in a LEAGUE all its own..

When it comes to Replacement Windows in Ct. The  Enviro-Star 800 Series by Okna Windows is a superior quality. No other window compares to this unique line of Replacement windows.  

The Okna Enviro-Star combines 100% virgin vinyl high-tech insulated glass and a unique welding process to produce a window that out performs all others.

​The 800 Series offers many options for colors and glass efficiency along with hardware and internal grid options, including a simulated divided lite for an authentic colonial look. 

The OKNA  Enviro-Star  Double Hung offered by Suburban Windows out performs window like Harvey,  Alside, Atrium, Mercury and Anderson. When you look at the ratings you will discover the Okna Envirostar Double Hung has the lowest air infiltration rating of all the leading Window Companies in CT.  With a rating of .01 the Series 800 is the closest you can get to a draft free windows, 3000 better then the industry minimum. The Okna Series 800 double Hung also has a unique magnetic sill similar to a refrigerator door and triple weather stripping to achieve these low ratings.

800 Series - Double Hung

• Maintenance free rigid multi-chamber vinyl profile.
  
• Full 3 1/4" Depth Welded Mainframe with beveled colonial exterior features curves that are not only beautiful, but also allow for maximum weld surface resulting in superior strength and years of long lasting performance.
  
• Heatseal® warm edge spacer system for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of the window.
  
• Full integral interlock with double weather-stripping.
  
• A variety of hardware options fits harmoniously into any décor.
  
• Fiberglass mesh half screens standard on all windows.
  
• Optional locking screen provides an additional safety measure.*
  
• Available in Replacement and New Construction applications.