Adjust to your needs

Innovative
Ventilation Solutions

While single hung windows have a stationary upper sash, double hung windows can be adjusted at the top or bottom for maximum air flow. At Lockman Doors & Glass, we supply and install windows to suit every property.

Lifestyle & Comfort

Lifestyle & Comfort

  • The ideal solution when ventilation is needed, but opening space is limited
  • Adjustable top & bottom hung sash for improved ventilation control
  • Stylish, high-quality hardware with convenient locking features

Design & Aesthetic

Design & Aesthetic

  • A clean contemporary refinement of a classic style
  • Security & insect screen options easily installed within the frame
  • Works with most cladding systems, giving you freedom in your choice of wall finish

Performance & Reliability

Performance & Reliability

  • Easy & smooth movement, thanks to the unique stabilising roller system
  • An innovative, multi spring balance system for trouble-free operation
  • Santoprene seals for superior year-round protection against the elements

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Visit our showroom in Armidale today

Based in Armidale, we install and repair double hung windows throughout the Northern Tablelands and surrounds, from Uralla and Walcha to Glen Innes, Inverell, Tenterfield and beyond.

Our specifications

Performance Parameters

Performance Essential Signature
Frame Size
52mm
100mm
Maximum Height
2100mm
2450mm
Maximum Width
3010mm
3690mm
Maximum Panel Width
900mm
1230mm
Maximum Panel Weight
22kg
42kg
Maximum Water Rating
450pa
600pa
Maximum Wind Rating
4500Pa ULS
6000Pa ULS
Maximum Acoustic Rating
Rw28
Rw31
Maximum Glass Thickness
6.38mm (single glazed)
12.76mm (single glazed), 20mm (IGUs)
Maximum Bushfire Attack Level
BAL 40
BAL 40

Talk to our team at Lockman Doors & Glass to find the ideal window solution for your home. Along with our double hung windows, we also offer louvre windows, bi-fold windows, sliding windows and more.