Cornerstone Premium Sliding Windows
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Cornerstone Premium Sliding Windows
These windows present the best of both worlds by combining exquisite form with effortless function. You'll appreciate the timeless style of their smooth, clean lines. Our innovative design provides years of easy-to-operate, fingertip control.
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Traditional Beauty
- Equal sightlines
- Coved glazing beads
- Classic wood-like design
Unsurpassed energy efficiency
- Optimal 7/8“ insulating glass unit
- ClimaTech® hight performance glass
- AllWeather™ sloped sill
- Heavy-duty weatherstripping and weatherseals
- Multi-chambered frame and sash profiles
Maintenance freedom and ease of use
- Everlast™ virgin PVC vinyl never needs painting or staining
- Both sashes tilt-in for easy cleaning
- Brass sash roller system makes windows easy to glide
Lifelong strength and durability
- InterWeld™ fusion-welded sashes
- Heavy-duty locking and operating hardware
- Dual locks on all windows over 25“ tall
- Lifetime Limited Transferable Warranty