Our sash windows function similarly to conventional box sash windows; the upper & lower sashes typically glide up and down and tilt inward for cleaning. In addition, they have superb energy ratings and double glazing. Every one of our sliding sash windows is custom-made and delivered to your home “ready to fit.”
Eco Star uPVC Sash Windows

Vertical Sliding/ Sash Windows
The market-leading Vertical Slider from Eco Star blends the functionality and outstanding performance of current materials with the charm and character of the past. Our Vertical Sliders are regarded as one of the best PVC-U substitutes for conventional timber box sashes because they combine a realistic appearance with today’s thermal performance and safety standards. In addition, Eco Star’s Sash Windows feature-rich windows are approved by planning inspectors even for usage in conservation areas.
Energy Conservation
- Designed with 24-mm sealed components to attain exceptional Window Energy Rating.
- Draughts are stopped by pile seals on the exterior frame and sash.
FEATURES
- Ovolo detail with full features.
- The deep bottom rail option replicates the appearance of a wooden box sash.
- Options for both large and small sashes for equal sight lines.
- The outside pane may be easily cleaned from the inside thanks to a tilt-inwards feature.
- Georgian bars and through- or molded sash horns are optional.
- 128 mm from front to back.
- Maximum size: 1600 mm in width and 3000 mm in height.
- Deep bottom rail with mechanical joinery for a realistic appearance.
- The spectrum of cills.
- System for low-line PCE glazing.
- The sash edges and the exterior frame are pile-sealed.
- Vents may trickle or be glazed.
- The complete colour palette and foil woodgrain finishes.
- 24mm sealed double-glazed units with Band ‘A’ WER.
- BS EN 12608 and PAS 24 kitemarking.
DIMENSIONS
- Installation is facilitated by a 128mm outer frame matching the timber sash proportions. Windows can be built up to 1600mm wide and 3000mm high.
- Large and small sash profiles provide equal sightlines for the top and bottom sash with 150mm and 210mm cills and 10mm/20mm/50mm frame packers.
APPEARANCE
- The shape of the frame, bead, sash, and cill is true to the ovolo style.
- Our sash windows offer an exceptional vintage appearance.
- Flush gaskets resemble conventional glazing.
- Many planning boards have approved, including for use in conservation areas.
FUNCTION
- For simple cleaning, both sliding sashes can tilt inward.
- Smooth-running balance systems.

Sash Windows Gallery
Get in Touch with Our Experts for Sash Windows At 0800-2465557
Our team is excited to hear from you and to assist you with all your inquiries!

























