Buy Replacement Shed Windows | Greenhouse Windows

On this page you can buy replacement windows and panels for sheds and greenhouses in either Perspex® Acrylic or Lexan® Polycarbonate in a choice of standard thicknesses.

Our replacement shed and greenhouse windows and panels are perfectly clear and less than half the weight of glass, and a perfect choice to replace yellowed, broken or old shed and greenhouse windows with new window panes. They're great for replacement cold frame glass panels, summerhouse windows and replacement playhouse windows too.

We'll cut your new shed windows to your exact sizes so you don't have to worry about trimming as you might with shop bought standard sizes.

Our Perspex® and Lexan® grades are UV treated to last longer outside than cheaper alternatives - in fact, you can be confident that our replacement panels will stay clear for at least twice as long compared to non-UV treated materials!

Benefits of new Perspex® Acrylic Windows?

  • Superior clarity - clearer than glass!
  • Economical
  • Excellent weather and UV resistance
  • Good impact resistance being 10 times stronger than equivalent thickness glass (so, strong, but not unbreakable)

Benefits of Lexan® Polycarbonate Windows?

  • Excellent clarity - clearer than glass!
  • Excellent fire rating
  • Excellent weather and UV resistance
  • 250 times stronger than equivalent glass and virtually unbreakable (ideal if security is a concern)

Product Availability:

  • normally from stock
  • Additional notes:

    • Your new cut-to-size windows are supplied with a protective film on both sides to protect material prior to installation
    • Manufacturing tolerance on thickness is ±10% plus 0.4 mm
replacement greenhouse windows
cold frame windows
Shed Windows
Click if you would like to request a sample of Shed Window - Perspex
Click if you would like to request a sample of Shed Window - Polycarbonate

Buying Options

Select Thickness
Select Colour
Select Material
Select Standard Size or Custom Dimensions
Enter your required cut length in mm
Enter your required cut width in mm

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Value out of Range : Check below

Important Information: Minimum cut length is 20mm
Maximum cut panel size is 2000mm x 1220mm
nb Enter the largest dimension first

Price excluding VAT


Price including VAT