Window Installation in Lehigh Valley, PA

At Hess Windows in Allentown & Tamaqua, we offer carefully selected window lines including OKNA Insul-Tec, Insul-Tec Deluxe, OKNA Enviro-Star, and Enviro-Star Deluxe. Replacement windows offer you ease of operation, increased interior comfort levels, and thermal efficiency. We offer a full line of custom-made vinyl replacement windows. Stop by our Allentown & Tamaqua showrooms to see our quality products on display.

Windows Photo Galleries

Casement & Awning Windows

"August 21, 2020 We had 8 windows replaced on our second floor. Matt who came out to do initial estimate was very informative and no pressure to buy. Our house is over 100 years old so not all straight lines, however, Terry and Stephen have done a great job inside and out with the installation. We are very happy with the overall experience and will be using them again when ready to do our downstairs." - Karen F. Northampton, PA