Double Hung uPVC Windows Melbourne
Double hung windows have two vertically sliding sashes — upper and lower — that both move independently. Sliding the lower sash up and the upper sash down simultaneously creates both a low-level inlet and a high-level outlet, producing a convective airflow effect through the room. The traditional divided-light aesthetic of double hung windows is immediately recognisable from Melbourne's Federation, Edwardian and Victorian homes, making double hung uPVC windows the technically correct specification for heritage replacement windows where modern thermal and acoustic performance is required alongside period appearance.
Double Hung uPVC Windows — Features & Benefits
Open upper, lower or both sashes independently for controlled convective ventilation.
Traditional sash window aesthetic suits Federation, Edwardian and Victorian period homes.
Simulated divided light grid inserts replicate original timber divided-light windows.
Argon-filled double glazed units with Low-E coating as standard.
Golden Oak, Rosewood, Mahogany and Natural Oak laminates available for heritage applications.
Manufactured to your exact dimensions at our Melbourne factory.
Independent Upper and Lower Sashes
The defining characteristic of double hung windows is that both sashes slide independently. Opening only the lower sash draws fresh air in at room level. Opening only the upper sash allows hot air to escape from the top of the room while maintaining privacy at the lower level. Opening both simultaneously — lower up, upper down — creates a thermal stack effect where warm air rises and exits through the upper gap while fresh cooler air enters through the lower gap. This convective ventilation is effective for cooling rooms naturally in Melbourne's warmer months.
Heritage and Federation Aesthetics
Melbourne's inner suburbs contain thousands of Federation, Edwardian and Victorian homes with original or replacement timber double hung windows. When these windows need replacing, maintaining the visual character of the streetscape and the period interior is often a priority for owners — and sometimes a requirement under heritage overlay. Double hung uPVC windows in timber look finishes, with the traditional divided-light grid pattern available as an SDL (simulated divided light) option, accurately replicate the appearance of original timber windows while providing modern double glazed performance and zero maintenance.
Double Hung uPVC Windows — FAQ
Are double hung uPVC windows suitable for heritage-listed homes? +
What is the difference between double hung and single hung windows? +
Are double hung uPVC windows the same as plastic sash windows? +
All uPVC Window Types
Dual-mode: opens inward or tilts. Most versatile.
→ Tilt & SlideSlides horizontally then tilts. No swing clearance.
→ Tilt OnlyFixed tilt angle. Child safety, bathrooms, high-level.
→ AwningTop-hinged, crank-operated. Ventilates in rain.
→ Pushout AwningNo crank handle. Heritage-appropriate appearance.
→ SlidingHorizontal. No swing clearance. Contemporary style.
→ StackerMultiple panels stack. Maximum opening width.
→ Bi-FoldAccordion fold. Full-width opening. Kitchen servery.
→ CasementSide-hinged. Maximum ventilation. European sealing.
→ FixedNon-opening. Custom shapes. Maximum light.
→ Double HungBoth sashes move. Heritage, Federation, Edwardian.
→Heritage Look, Modern Performance
Double hung uPVC windows are the right choice for Melbourne's Federation and heritage homes. Period appearance, modern efficiency, zero maintenance. Get a free quote.