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Lead Safe Renovator

Our discounts change monthly.  We will be happy to discuss the current specials with you!  Call today and schedule your free in-home consultation!

Vinyl Replacement Windows

At Hess Windows in Allentown & Tamaqua, we offer carefully selected window lines including OKNA Insul-Tec, Insul-Tec Deluxe, OKNA Enviro-Star, Enviro-Star Deluxe and seaway signature gold.  

Replacement windows offer you ease of operation, increased interior comfort levels and thermal efficiency. We offer a full line of custom-made vinyl, composite or wood interior and aluminum exterior replacement windows.  


No matter the style, we have a window to fit your needs.

Double Hung Bay Window Horizontal Sliding Window Awning Window
Bow Window Casement Windows Garden Windows Picture Windows

In addition to our vinyl windows and storm products, we offer Harvey Majesty wood windows with a solid pine or oak interior and aluminum clad exterior and a CompositWood window by Interstate. We also offer a garden window by Harvey.

Stop by our Allentown & Tamaqua showrooms to see our quality products on display.



OKNA logo



Manufactured in Bristol, PA

Limited Lifetime Warranty

Accidental Glass Breakage





Double Hungs

Insul-Tec Deluxe Brochure

Insul-Tec Deluxe Warranty

Standard Features:

  • Fully welded vinyl frame and sash
  • Optional foam-filled extrusions
  • Insulated extra-strength glass
  • Heatseal® glass system
  • Power Lift™ balance system
  • Full interlock with triple weather stripping
  • One-piece sloped sill
  • Heatseal® warm-edge spacer system



Enviro-Star Deluxe

Double Hungs

Enviro-Star Features

Enviro-Star Warranty

Standard Features:

  • Traditional wood window style
  • Fully 3 1/4" depth welded mainframe with an elegant beveled profile
  • Heatseal® Warm-Edge Spacer system
  • Full integral interlock with double weatherstripping
  • Variety of hardware options
  • Magnetic seals reduce drafts, improving thermal performance
  • Additional high-density composite reinforcement in locking sash equals a structurally stronger window
  • ThurVision Plus® screen with optional locking screen for additional safety benefits



Seaway Signature Gold
Double Hung

Manufactured in Erie, PA

 Seaway Manufacturing Erie, PA

Standard Features:

  • Multi-chambered uPVC vinyl extrusions
  • Foam-filled master frame
  • Fusion-welded sash and master frame
  • Super Spacer® with MicroShield antimicrobial triple weather stripping
  • Double insulated glass with “Insul-Glaze” glazing technology
  • Full Interlock at meeting rail
  • Double security Uni-Tilt locking device and heavy duty vent latches
  • True sloped sill eliminates weep holes that can clog and leak
  • Low profile hardware stays below glass area for clean sightlines
  • Aluminum extruded screen frame and fiberglass mesh provides better bug barrier and increased airflow; half screen standard
  • Lifetime Warranty with Accidental Glass Breakage