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3mm 610mm x 445mm x 12mm Shatterproof Greenhouse Window - Polycarbonate

Sale £20.25 Inc. VAT £16.20 Inc. VAT

Our greenhouse windows are an ideal replacement for glass. Not only are they shatterproof, they also offer better insulation, maintaining a stable temperature for your plants. You can buy our 3mm thick pre-cut standard size 610mm x 445mm x 12mm clear polycarbonate, in-stock and ready to ship or order a custom size.

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Sale £20.25 Inc. VAT £16.20 Inc. VAT
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610mm x 445mm x 12mm Greenhouse Window (3mm Polycarbonate)

Unbreakable, Insulating & Built for Year-Round Plant Growing

Bad weather, the kids playing football, or even vandalism at the allotment may mean you’ll need to replace broken glass in your greenhouse. For ultimate strength and insulation, our 3mm thick polycarbonate panel is the most durable greenhouse glazing option available. 200 times stronger than glass, this triangular panel is virtually unbreakable, making it perfect for protecting delicate plants and vegetables from strong winds and storms.

Unlike glass, which can allow harsh glare and uneven light exposure, clear polycarbonate offers gentle, diffused light that promotes consistent growth while blocking 99% of harmful UV rays. Additionally, its insulating properties help regulate greenhouse temperatures, creating the ideal environment for healthy plants year-round.

We deliver these panels straight to your home, saving you the time and effort of sourcing a local supplier. If this isn’t the right fit for your greenhouse, we also offer custom greenhouse window panels to match your exact dimensions.

For easy installation, visit our greenhouse window installation guide and get your panel fitted in no time.

Cost Effective

Clarity

Weather Resistant

Maintainable

Salt Resistant

Polycarbonate Greenhouse Windows Specifications

Material Polycarbonate
Finish Clear
Thickness 3mm
Sheet Size 610mm x 445mm x 12mm
Fire Rating UK Class 1 Fire Rating
Water Absorption 0.15%
Manufacturers Tolerances +/- 5%
Cutting Tolerances +/- 1mm
Service Temperature -50c to +100c

Perspex® Palsun Polycarbonate Technical Sheet

Frequently Asked Questions

Have a question? You can find answers to commonly asked questions about our products, delivery, returns, cancellations and more on our FAQs page

Alternatively, for help and assistance, you can use our Live Chat or reach out to us via email using the contact form on our Contact Us page. 

Delivery depends on the size of your order

Customer Services

We're Here to Help

Our Help Centre is available 24/7 to explore FAQs, discover DIY ideas and advice, and even ask our community of fellow DIY enthusiasts.