All Window Source double-hung windows come standard with:
Multi-chambered premium vinyl frames
Fusion welded vinyl sash and main frames
Both sashes tilt in for safe and easy cleaning
Double insulated glass IG units
Warm edge spacer technology
Spring loaded vent latches
Equal lite sashes
Half screens
Custom-made to fit each opening
Limited Lifetime warranty
ENTRY LEVEL
3000 Series
The 3000 Series double-hung window line has all of the essential features of an energy efficient replacement window.
3000 Series Features
- Multi-chambered 3 1/4 inch vinyl frames
- Fusion-welded sashes and mainframes
- Double insulated glass
- Both top and bottom sashes tilt in for cleaning
- Sloped sill
- Warm edge spacer system
- Extruded aluminum half screens
- Meets Energy Star when ordered with LowE glass
BEST SELLER
6000 Series
The 6000 series window is a step up from the 3000 series, offering more vinyl, even stronger construction, and double-strength glass.
6000 Series Features
- Multi-chambered 3 1/4 inch vinyl frames
- Fusion-welded sashes and mainframes
- Both top and bottom sashes tilt in for cleaning
- Warm edge spacer system
- Double insulated glass
- Extruded aluminum half screens
- Double strength glass option
- Clarity mesh screen option
- Interlocking meeting rail
- Welded true slope sill
- Meets Energy Star when ordered with LowE glass
- Limited Lifetime Warranty
BEST QUALITY
9000 Series
The 9000 series is our highest performance window line. Triple glass, foam-filled frames, and two LowE coatings give you the most energy efficient option in our entire window lineup.
9000 Series Features
- Multi-chambered 3 1/4 inch vinyl frames
- Fusion-welded sashes and mainframes
- Warm edge spacer system
- 7/8 inch triple insulated glass
- Foam-filled frames resist heat and cold transfer
- Double strength glass option
- Two layers of LowE/Argon option
- NFRC U-Factor of .22 option
- Extra heavy duty beveled frames
- Clarity mesh screen option
- Welded true slope sill
- Decorative recessed locks
- Limited Lifetime Warranty
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Double-Hung Windows
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