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Flush Fitting Casement UPVC Double Glazed Windows

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


Our UPVC Flush Casement windows are virtually indistinguishable from timber but have two major advantages. Firstly, they
are more affordable and can make a huge improvement to the comfort and appearance of a property where timber alternatives may be prohibitively expensive.

Secondly, their insulating qualities, easy maintenance and recyclability make them an environmentally-friendly alternative.

Our sightlines are spot on. Our Flush Casements have perfectly balanced dummy sashes and there is a deep bottom rail available. There is a great selection of period colours and wood-effect finishes, including a timber-grained, white or cream painted effect, which avoids potential unease about the smooth surface of UPVC.

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 anthracite-grey light-oak rosewood black-brown pebble-grey sage-smooth claystone
arctic autumn chantilly charcoal-stick cortona cotswold digital evergalde flemish florielle mayflower flush-minister oak pelerine stippolyte sycamore taffetta warwick

UPVC Flush Sash 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 glazed flush fitting casement windows


Ecostar Double Glazing’s wide range of flush fitting UPVC windows is available in a variety of glass options, including clear glass, obscure glass, leaded lights, decorative glass or bevelled glass, so you’re guaranteed to find a style to perfectly complement your Melbourne home.

If you’ve been looking for flush fitting casement, double glazed windows in Melbourne, your search stops here. Ecostar’s range of UPVC composite windows with double glazing is the far superior option to traditional aluminium and wood windows and doors. Contact Ecostar today on 03 8782 9301   for a free, no-obligation quote or visit our mobile showroom and get impartial advice from the experts!



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++).