Polycarbonate Greenhouses

Why choose polycarbonate for your glazing?

Polycarbonate is your best choice if you think there's a risk of smashed glass. Polycarbonate doesn't shatter into dangerous pieces like horticultural glass, making it better to deal with the realities of a family garden, including flying footballs, as well as vandalism if it's on an allotment.

They are sometimes known as plastic greenhouses, as that's what polycarbonate is made from. They can be used for both domestic and commercial greenhouses, and are durable and weatherproof too.

They are available in all sizes, including mini greenhouses, large greenhouses, walk-in greenhouses, and lean to greenhouses. You can create an account and checkout online via our website, or give us a call for more information. We have greenhouse accessories to go with your new purchase too, which you can add to your order easily.

Click the product page for more details on the item's features and example photos, as well as the latest offers and colours. Poly greenhouses are still heavy duty, and have a strong aluminium frame and base.

Greenhouse Brands & Quality

Our wide selection of aluminium greenhouses with polycarbonate glazing includes designs from Halls, Eden, and Elite. Offered at affordable prices, these high-quality greenhouses will last for years and give excellent value for the money. There are cheaper alternatives out there, but the quick breakdown and failure of cheaper materials and construction mean early replacements and a loss of any perceived value the lower price might falsely promise. We only sell greenhouses that we would be confident in using ourselves, so you can benefit from our expertise and experience.

Our polycarbonate range tends to be with an aluminium frame, but we also stock wooden greenhouses here.

Both are equally as good to grow vegetables at home and store delicate plants over the winter. The clear polycarbonate panels are perfect for both residential and commercial settings. We have more guides about insulation for your greenhouse here.

Large Sized Perspex Greenhouses

If you dream of a big greenhouse – or the abundant crops that would need one – we offer the 6x10 Halls Popular, each ten feet wide and fitted with 6mm twin wall polycarbonate glazing (better than the thinner 4mm versions). Still not enough? The 12x8 Elite Classique comes in at a whopping twelve feet across and is constructed with the same high-quality materials and glazing. 

Each of these models can also be fitted with an additional set of double doors at the far end of the structure, so you can enter and exit from either end, or even place the greenhouse in an area where a through passage is required. The sliding doors are very easy to use.

You can customise the shelving options on the product page, as well as extra roof vents, heaters, and other options.

Strong Polycarbonate Glazing

Greenhouse polycarbonate glazing is available in a twin-wall design, featuring 6mm thicknesses, which creates an insulating cavity between the panes, just like double glazing in a home.

The durability of these greenhouses is ideal for growing tomatoes, vegetables, herbs, and plants in your back garden or allotment. This makes them exceptional growhouses for your growing season, an alternative to a polytunnel or garden building.

Polycarbonate vs Toughened Glass

Glass greenhouses are more traditional in appearance, and the glass panels are completely transparent, making them more visually appealing. The toughened glass granulates when it breaks, which makes it safer than horticultural glass.

Polycarbonate glazing is not 100% transparent, so it's not as visually appealing as glass. However, polycarbonate panels are the safest glazing you can choose, as the polycarbonate sheets won't shatter into pieces like glass.

Polycarbonate greenhouses are also more lightweight than glass versions, making them easier to move around, the perfect garden greenhouse.

Greenhouse Reviews

Here is a small selection of the thousands of reviews we've had:

John, 10/06/2020 Reviewed the 4x8 Elite Compact Aluminium Finish

"Excellent service from SWG, advised of delivery date and the greenhouse arrived a day earlier. Although I am a keen DIYer, the instructions sometimes were a bit of a challenge, however my wife was on hand to help! Also good support from Elite as needed. On my own it took about 18 hours in total to complete the build and it was easy to secure to my ready made base. Some areas of the instructions could have been a bit more explanatory (e.g Highlighting when extra bolts need to be inserted would have helped), but good when you figure it out. Only criticism is the door handles, did not fit them, will look for something locally a bit more friendly."

Nigel, 26/12/2017 Reviewed the 5x8 Elite Streamline Aluminium Finish

"Excellent phone service from both SW Greenhouses and Elite, delivery on time. Erection was not for the faint-hearted as much of the instructions were vague; maybe more illustrations could help. The quality of the mouldings and accuracy of the fittings are superb, resulting in a quality greenhouse. Fitting a large panel of toughened glass was difficult until I slackened off most nuts. I would recommend this greenhouse. Nigel. Cirencester"

Raja, 20/07/2015 Reviewed the 2x4 Elite Easygrow Lean To

"Well built and sturdy small greenhouse. The instruction booklet was simple, which helped to make assembly and fixing fairly easy. Lots of spare nuts, bolts, and clips were in the pack. Good quality glass. The base fits very well. Thank you for your excellent service."

South West Greenhouses are rated 4.94/5 based on 2161 reviews.

UK Delivery and Installation

We offer free delivery on all small greenhouses to UK mainland postcodes, with some exceptions of the Scottish Highlands and other hard-to-reach areas (which will require a custom quote). You can click on the individual product pages to learn more about the delivery of each type. Visit a product page for more information on availability, free delivery area, affordability, and product lead time.