Liniair uPVC Flush sash windows

Liniar uPVC windows benefit from traditional design coupled with modern and advanced technology. Slim sight lines to maximize light exposure. Multi-chambered uPVC profile, which works to trap in pockets of warm air and maintain the warmth in your home – A+ Rated .

  • Window Sight Line:
    75 mm
  • Window Depth:
    70 mm
  • Window Outer Frame Sight Line:
    35 mm
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Liniair uPVC Flush sash windows

Liniar’s uPVC sash window look great with a flush finish on external faces and sculptured, chamfered-aesthetic suites available in a range of sizes and configurations.


  • Min: 16mm
  • Max: 40mm
  • Glazing Method: Beaded

Size Limits:

  • Maximum Width: 1200mm
  • Maximum Height: 1200mm


  • Secured by Design
  • PAS24
  • U- Value: From 1.5 W/m²K
  • Air Tightness: From Class 4
  • Water Tightness: From Class 7A
  • Wind Resistance: From Class C5


  • Min: 28mm
  • Max: 32mm
  • Glazing Method: Beeded


  • Offers triple glazed option
  • Offers various window configurations, colours & finishes
  • Liniar windows are 100% lead free and entirely recyclable, thereby reducing environmental damage and meeting EU and UK legislation ahead of time.
  • Durable Hardware tested to 20,000 cycles
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