Swapping out a pane of glass in your greenhouse might seem like hard work, but with the right materials and our straightforward step-by-step guide, you’ll be done in no time. Whether you’re a seasoned DIY enthusiast or just getting started, we’ll help you through the process of replacing that old pane with a brand-new plastic sheet. No worries, we’ll tell you even the smallest details and tools required to get your greenhouse looking spick and span again.
What do you need?
1Check how the glass is mounted
Before getting started, it’s important to see how the pane is secured in your greenhouse. Carefully observe the mounting method: glazing clips or strips. This will help you put together the right materials and tools. So, pay close attention and gather everything you need before you start removing the glass.
2Remove the current glass pane
Patience and carefulness are your best mates when it comes to removing the old pane. Gently take out the glazing clips or strips. A flat screwdriver will come in handy here. Make sure to put on safety gloves to protect your hands, and carefully lift the pane out of its frame. Place the old pane safely somewhere, such as vertically against a wall, to avoid any breakage.
3Inspect and replace the glazing rubber
This rubber is essential for protecting the pane and preventing draughts and leaks. Inspect it closely: any cracks or brittleness means it’s time for a replacement. Measure the right length for each frame and cut the new rubber to fit perfectly. Secure the new rubber properly in the aluminium frames for a solid seal.
4Measure and order your new plastic sheet
Accurately measure the aluminium frame opening for a perfect fit. Deduct 3mm from each side to allow for material expansion. Order your custom-made acrylic or polycarbonate sheets. Our online sheet calculator will help you add holes or special shapes for a perfect fit. Pay attention to the thickness you choose, as it should match the frame’s width and offer the insulation level you need. A thickness of 4mm is often a great choice.
Clear cast (GS) acrylic sheet 2 mm
5Install the new plastic pane
Wait until just before installation to remove the protective film to prevent scratches. Position the new pane against the installed rubber in the frames, ensuring it applies even pressure on the rubber. Secure the pane firmly with glazing clips or strips. Finally, check that the pane is installed properly, without any tension.
6Tips & tricks
A few smart considerations when working with a greenhouse pane:
- Polycarbonate is a great choice—it’s hailproof and ideal for harsh climates, offering extra protection for your plants.
- Check the thickness of your plastic sheet so it fits your existing frame and the insulation you want.
- Regular cleaning of the panes extends the lifespan of the plastic and keeps your greenhouse in tip-top condition.
Frequently Asked Questions
Get started with PlasticSheetsShop!
Ready to tackle the job yourself? At PlasticSheetsShop, we provide high-quality plastic sheets, fully customised to size. Whether you need a specific shape or a different thickness, we ensure the perfect fit for your greenhouse. Experience it yourself and enhance your greenhouse today with top-quality, durable plastics!