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Double Hung & vertical Sliding double glazed windows for Melbourne homeowners

Ecostar Double Glazing offers a wide range of UPVC double glazed windows, ideal for any type of house.


Ecostar’s double hung (vertical Sliding windows) provide your home with the best-possible ventilation solution.
Originating in the Georgian era, double hung (or sash) windows are practical and elegant, combining classic design details of the past with the latest UPVC and hardware technology.

Ecostar UPVC double glazed windows:

  • Lower your energy bills
  • Reduce your carbon footprint
  • Reduce outside noise by up to 90%
  • Withstand extreme weather conditions
  • Don’t fade, crack or split
  • Require no maintenance

View our range of finishes and colours

white cream agate signal anthircite black-brown light-oak rosewood pebble sage-smooth claystone
arctic autumn chantilly charcoal-sticks cortona cotswold digital everglade felmish florielle mayflower minister pelerine stipolyte stipolyte taffeta sycamore warwick

UPVC Vertical Sliding Window Benefits


Easy Clean Fire Egress Hinges

Lipped slider for enhanced smooth operation. Easy friction adjustment without metal to metal contact. Restricted hinge options available to protect the most vulnerable.

Stainless Steel Friction Stays

Available in ferritic 430 or austenitic 304 stainless steel for enhanced corrosion resistance. Durable and weather resistant, tested to 30,000 open cycles.

Customisable Handle Options

Guaranteed for 10 years, available in various colours to complement any window style. Our austenitic 304 stainless steel ergonomic handles are rust resistant.

Multi-Point Locking System

Maximum security multi-point locking systems provide enhanced protection against forced entry. Additional dog bolts improve stability around the entire frame and prevent attack on the hinge side of the window.

Frame Trickle Vent System

Available in UPVC and aluminium, in a range of colours to match any frame (vent in frame head only for flush casement). Provided loose to prevent damage in transit. Complies with latest building regulations.

Weather Performance Accredited

Superior weather sealing and draught proofing performance, conforming to the exacting standards of the BS-36751 accreditation.

Docking System Bolt System

Patented bolt into the keep docking system prevents sideways movement of the bolt when under attack.

Superior Shoot Bolt System

Heavy duty bolt has up to 300 per cent greater contact area against competitor shoot bolts.

Ultra Durable Frame Hardware

Resistant to salt and spray (BSEN1670) and cycle tested over 50,000 times for ultimate long term performance.

Explore Ecostar’s range of double-hung & vertical Sliding double glazed windows


Ideal for both traditional and contemporary homes, Ecostar’s unique double vortex system enables you to ventilate your Melbourne home with fresh air through the bottom, top or both sash windows.

Ecostar double hung replacement windows virtually eliminate external noise including traffic noise, while ensuring your home is energy efficient.

Ecostar offers Melbourne’s best replacement window installation service, and our range of double hung windows come in a wide range of designs and colours, including traditional aluminium and timber, while offering the superior durability and quality of UPVC.

Ecostar’s entire range of UPVC double glazed windows carries the official UK police-preferred high security ‘Secured by Design’ specification.



Ecostar holds all major Australian and European quality accreditations including Victorian Building Authority Registered Building Practioner, Australian Glass and Window Association, British Standard Institute, Secured by Design, Hot Country Profile, Window Energy Rating, Housing Industry Association, Neighbourhood Watch and BFRC energy rating (A++).