Innovation

For almost a quarter of a century, OKNA Windows and Doors Company out of Bristol, PA, has been manufacturing high-end vinyl and composite replacement and new construction windows and patio doors with some of the lowest U-Values in the fenestration industry. OKNA’s vinyl double-hung window line has U-Factors as low as 0.15 in the triple-pane LowE glass filled with krypton (Kr) gas, 0.17 in the triple-pane argon (Ar) filled glass; and 0.25 in double-pane argon filled glass. Not too many manufacturers in the US can achieve this energy efficiency in their window products. Another big difference about OKNA windows is very low air infiltration ratings.

Air leakage

All windows leak some air regardless whether they’re old or new. The question is what is this air leakage rate? This rate is expressed in cubic feet per minute in windows of 25 mph. While other manufacturers would be proud to sell picture and casement windows with air infiltration rates as low as 0.01 (cfm/ft²), OKNA windows have the same air infiltration rating on double-hung windows. Their products are also characterized by extreme structural integrity. In independent laboratory testing, their windows withstood 187 mph winds, and achieved AAMA ratings as high as R-60.
OKNA were able to achieve these incredible performance levels by constant investment in research and development, innovative design, and state-of-the-art manufacturing equipment. OKNA Window Company has limited their independent dealer network to those dealers and installers who believe that customer comes first. OKNA has been expanding their markets steadily and offering a broad range of products to window and door installation companies in the Midwest, Middle Atlantic, and East Coast states including window and door installation companies in Connecticut. Read more: Okna Windows CT

Their product line is impressive. It includes: welded, single and double-hung, horizontal sliding, casement, awning, bay and bow, basement windows as well as high-end vinyl sliding patio door called Elegante. Entire product line carries fully transferable lifetime warranty and incorporates HeatSeal glass system by DuraLite. This unique non-metal spacer system increases thermal efficiency, temperature around the edges of the glass, thereby reducing the risk of condensation.

In conclusion, OKNA windows and patio doors are extremely well designed products with some of the best performance ratings the industry has ever seen. Their warranty and customer service is superb. Although, their products cost a little more than those of the competing manufacturers, OKNA’s dedication to superb design, attention to the smallest details in the manufacturing process, excellent thermal performance, show in their products and dedication to homeowners who trusted OKNA products with their hard-earned money. If you choose OKNA windows or patio doors, your investment will pay for itself in lower energy bills, much more comfortable home and enhanced curb appeal of your home.