4000 Series

Double Hung

EcoShield Windows

The EcoShield 4000 line unites elegance and performance in a single, highly-efficient system. Engineered for strength and durability, with high-end features typically found only in the most expensive premium lines, the 4000 vinyl replacement window delivers superior value.

Click here for Glazing and Color Options

Standard Features

  • Thermal Fusion Welded Frame and Sash
  • Sleek Slimline Sash Profile
  • Quad Weather-Stripping at key contact points
  • Block and Tackle Balance System
  • 3¼" Frame Depth
  • Available in Rolling, PW and Hopper
  • Full Length Lift Handles
  • Locking Half Screen
  • Approved Forced Entry Locking System
  • Sash Tilt In for Easy Cleaning
  • Double Recessed Meeting Rail Locks
  • DP 50 Rated
  • Interlocking Sloped Sill
  • Dual Night Latches

Performance Options

  • ST Stimulus – Federal Tax Credit Approved Glazing Package
  • DOE-R5 Glazing Package*
  • White, Beige and Bronze/White Colors
  • Cherry, Light and Dark Oak Simulated Woodgrain Interior
  • 14 Exterior Decorative Colors
  • Flat, Profile or SDL Grid Package
  • Foam Frame Wrap
*Based on the Department of Energy R5 Building Technologies rating for high performance windows.
4000 Series Window
Thermal Performance Data-4000
GlazingU-ValueSHGCVLT
DOE - R5 - Triple.21.21.39
ST Stimulus.29.26.49
Supra.30.26.55
HP Low E.34.26.49
Clear.45.56.58

Full test results with grids or without grids

Not sure what the difference is between a double hung window and a single hung window? Check our frequently asked questions page for answers to common window questions.