Easy Assembly: Partially assembled for hassle-free DIY.
Superior Frost Protection: Retains heat longer.
Market-Leading Quality: Strongest Polycarbonate Greenhouses in NZ.
Why choose a Morrifield Polycarbonate Greenhouse?
As New Zealand’s leading manufacturer, we offer the strongest Polycarbonate Greenhouse on the market, specifically designed for twinwall sheeting since the 1980s. Our greenhouses boast exceptional stability and suitability for high wind zones and remote locations, thanks to 6mm sheeting with a double-glazing effect for better heat retention.
Choosing a Morrifield Polycarbonate Greenhouse offers numerous benefits including; durable and long-lasting construction, excellent insulation and UV protection, light diffusion for optimal plant growth, versatile and low maintenance design, a cost-effective solution with extended lifespan, and expert support and guidance from our team.
Our team offers comprehensive sales and service support, backed by years of gardening expertise. Explore our garden blog for valuable tips and advice.
Manufactured in Invercargill, Southland for over 40 years, we’re proud winners of the Southland Excellence Business Awards 2023 “Small Business of the Year”.
Our Tunnelhouses Have Been Tried And Tested In NZ Weather Conditions Since 1980
Polycarbonate Greenhouses
Experience the Strength and Performance of Morrifield Polycarbonate Greenhouses
Morrifield’s Polycarbonate Greenhouses are New Zealand’s strongest and most durable, specifically designed for twinwall sheeting since the 1980s. They offer exceptional stability, high wind resistance and suitability for remote locations, thanks to 6mm sheeting with a double-glazing effect.
Enjoy numerous benefits with Morrifield Polycarbonate Greenhouses, including durability, excellent insulation, UV protection, light diffusion, versatility and low maintenance. This results in:
Better heat retention and insulation
Optimal plant growth and yield
Extended lifespan and cost-effectiveness
The Advantages of Polycarbonate (Twinwall sheeting)
Polycarbonate Greenhouses, featuring 6mm twinwall sheeting, provide a controlled environment that extends the growing season, allowing plants to thrive in colder climates. The double-glazing effect retains warmth, enabling earlier planting and longer growing periods. Additionally, polycarbonate offers superior protection from extreme weather conditions, including heavy rain, hail, strong winds and frost, acting as a shield to prevent damage and minimise crop loss, ensuring your greenhouse remains secure and intact, even in harsh weather.
Durable and Low Maintenance: Polycarbonate is a strong and durable material that withstands harsh weather, including strong winds and hail. Its 6mm thickness provides excellent insulation, retaining heat and creating optimal growing conditions. The material is also lightweight, easy to clean and resistant to discoloration.
Excellent Insulation: The 6mm thickness of the polycarbonate panels provides excellent insulation properties. It helps to retain heat inside the greenhouse during colder months, creating a favourable environment for plants to grow.
Protection and Light Diffusion: Polycarbonate blocks harmful UV rays, ensuring plant health, while its light-diffusing properties distribute light evenly throughout the greenhouse, reducing shadows. This creates an ideal environment for plants to thrive.
Versatility and Cost-Effectiveness: Polycarbonate Greenhouses are available in various lengths, accommodating different crops and maximising growing space. Compared to glass, polycarbonate is a more cost-effective material for greenhouse construction, reducing the need for frequent repairs or replacements.
Additional Benefits and Warranty: Our Polycarbonate Greenhouse Sheeting comes with a 15-Year UV Warranty against UV breakdown. The breathable aluminium foil tape prevents moss, mould and moisture buildup, ensuring a longer lifespan for the greenhouse.
Convenient Nationwide Delivery
Our tunnelhouses are freighted nationwide via Mainfreight. You can collect from any depot with a trailer (approx. 8ft x 4ft or larger) or opt for direct-to-site delivery, subject to location accessibility. Please provide your full address via the enquiry button for a freight quote. Click here to see how the kitset arrives.
*Please note: Ensure good property access, as deliveries are made on large trucks.
Polycarbonate Greenhouse Installation
Watch our easy-to-follow video below that shows you how to install your polycarbonate greenhouse.
*Important, please note:
Our Greenhouses have been tried & tested in NZ’s harsh weather conditions since 1980. It is very important to provide good wind shelter/protection especially from the North Westerly wind which in some cases is gale force, or your prevailing wind. Having good wind protection and shelter will ensure longevity in most cases, except for major weather events, including cyclones and tornadoes which can be extreme in some cases.
We cannot guarantee the Greenhouse and parts against weather events due to the nature of the product and placement or location unfortunately. Our product is guaranteed for 10 years for the framework and parts, against any manufacturing fault or defect deemed by us that is not satisfactory, excluding the Polycarbonate sheeting which has a UV warranty for 15 years.
The greenhouse is lovely. Thanks you so much. It coped with the high winds we have here. We expect lots of terrific tomatoes.
Andrew, Christchurch
Hi Morrifield team,
Just want to say thank you and I am very happy with my tunnelhouse. My hubby thought we should lay a concrete edge and bolt it down as we get some fairly good winds. Here, so we have, i have my first lot of veges in and have great plans for winter.
Julie
Just a quick note to say I am so pleased with the Morrifield tunnelhouse. I’m in Reefton, we don’t get snow very often but even with this heavy fall (3 inches or so) I am thrilled with the warmth that can be felt in the tunnelhouse, to anyone looking for one.
Donna M, Reefton
A great product, the missus is happy, and a bumper crop of tomatoes!
John, Wanaka
Fantastic product, I love my tunnelhouse and it is so nice having fresh veges/ fruit, I’m still getting strawberries in April! Amazing, highly recommend. Thanks Morrifield
Tina, Invercargill
I have four 8m x 2m tunnelhouses and absolutely love them! They extend my growing season in an area where we get very late and early frosts. They are very tough and durable and have held up extremely well in the strong winds that have blown down across the valley from Lake Hawea. Since we got our tunnelhouses we have noticed them popping up like mushrooms in the area. Pretty much every house around us has one now. I cant imagine my vegetable garden without them.
Belinda S, Hawea
I live in Northland and had winds that downed many trees but the 8 metre tunnelhouse is unscathed by all nature could throw at it. Best gardening investment I’ve ever made.
Bob Eyre, Northland
Both of my Morrifield Tunnelhouses came through cyclone Gabrielle untouched. A 30-year-old walnut tree right beside them was torn out roots and all. Says a lot for the quality of their product.
Rex Green, Kaiwaka
I am emailing to say a big thank you. We bought 1, 5m and 2 x 10m polytunnels from you and due to life have just finished the first one (5m) Wow! The instructions were clear and the quality of the kitset for me is top notch. Can you please pass on our thanks to all the guys on the floor and, also the amazing customer service from the first contact to the amazing quick delivery. In a world where most people moan when something is wrong. I make a point to thank people when Im impressed so thank you all at Morrifield
Stewart & Wendy, New Plymouth
I have four 8m x 2m tunnelhouses and absolutely love them! They extend my growing season in an area where we get very late and early frosts. They are very tough and durable and have held up extremely well in the strong winds that have blown down across the valley from Lake Hawea. Since we got our tunnelhouses we have noticed them popping up like mushrooms in the area. Pretty much every house around us has one now. I cant imagine my vegetable garden without them.
Belinda S, Hawea
Definitely Morrifield all the way, we lived near the coast in Southland and our tunnels never moved an inch, we had a 6mt polytunnel and a 4.8m Twinwall
Leonie Murphy
Hi Morrifield Tunnel Houses My sister and I have just recently purchased a 4 metre tunnel house from you. From the time I spoke to the gentleman at your office, to it’s arrival only a few days after the order went in, to the ease at which we put the tunnel house up this morning, we couldn’t be any more delighted. The instructional video was simple to follow and us couple of old ducks managed it without a hitch! Thank you so much for your great service. So glad we recommended you to two more friends who have also purchased tunnel houses from you. Kindest regards
Bev and Jane, Malborough
A great product, the missus is happy, and a bumper crop of tomatoes!
John, Wanaka
Just a quick note to say I am so pleased with the Morrifield tunnelhouse. I’m in Reefton, we don’t get snow very often but even with this heavy fall (3 inches or so) I am thrilled with the warmth that can be felt in the tunnelhouse, to anyone looking for one.
Donna M, Reefton
Hi Morrifield team, Just want to say thank you and I am very happy with my tunnelhouse. My hubby thought we should lay a concrete edge and bolt it down as we get some fairly good winds. Here, so we have, i have my first lot of veges in and have great plans for winter.
Julie
The greenhouse is lovely. Thanks you so much. It coped with the high winds we have here. We expect lots of terrific tomatoes.
Andrew, Christchurch
The best you can buy..
B Gosney
Id just like to say our morrifield tunnelhouse handled what Cyclone Gabriel threw at it and also the flooding
J Foster
Have 2, 10m ones and wouldn’t be without them. Have crop protection covers on both and they don’t get too hot and are in the North. Great product and great company to deal with
Rex, Kaiwaka
We had a morrifield tunnelhouse and moved it with us over the years. 5 shifts in all. Fantastic but recommend extra window for best ventilation and a screen door.
Margaret Jean
Ours has been up for just over a year, best money Ive spent. Tomatoes and cucumbers are coming out of our ears!
Murray Wells
I’ll vouch for these, bloody good strong and easy to build. Customer relations second to none as well.
Owen English
Well I managed to get my Morrifield up today even in the rain. Im not good at this stuff but must say morrifield make it easy. Someone who is hopeless at DIY can do this and I did it myself. And my tunnelhouse is 10 meters. I already have plants in this.
Christopher Woodford
Many thanks for your help in obtaining one of your Tunnelhouses. Its up and running and Im very pleased with the result. I also found the instructions easy to follow, especially with the hard work done beforehand, so once again thankyou.
Vic,Whangarei
Hi just to let you know that we have built our tunnelhouse. It was so easy to put up and looks amazing. Thanks for your very quick service. We are very happy with the end result. Currently standing up to some gusty winds too!
Regards Joe, Leeston
Hi guys received my 5m greenhouse a couple of weeks ago and assemble it today. My son doing most of the graft. Have to say brilliant, easy to assemble especially following the video stage by stage. Already recommended it to some mates.
Cheers Stan, Kaponga South Taranaki
I purchased a small Tunnelhouse from you a week or two ago which arrived and is safely now up. I just wanted to say how simple it was to put up. Your video was a huge help, seeing each stage made with written instructions much clearer.
P Minchin, Motueka
Fantastic product, I love my tunnelhouse and it is so nice having fresh veges/ fruit, I’m still getting strawberries in April! Amazing, highly recommend. Thanks, Morrifield
Tina, Invercargill
We needed protection for our vegetable garden as we are in a very high and cold wind zone. We purchased 3 polytunnels (1x 5m and 2 x 10m) and as a kitset they were easy to put up and very accurately made. The amount we have grown has more than paid for the tunnels, so much we purchased a crop house for our brassicas, which was also fantastic to put up and use. As a product and customer service I would recommend to anyone needing a polytunnel
Stewart Watson, New Plymouth
I have 2 x 8m tunnel houses, great support from Morrifield
Denise Gibson
I live North of Westport. We bought one from Trade tested and it was a disaster. The bits are still sitting in the barn. Then we bought a Morrifield and it was probably the best decision we made that year. Have never regretted it. Shelved the south side to grow seedlings, succulents etc and grow things on the North. Have a potting table at one end. Great! Grow heaps of stuff
Jane Orchard
Great product had mine for at least 12 years , stood up in all weathers
Jill-Ross Dunlea
Ive got a Morrifield and its primo. Had a plastic panel type back in the North Island which was ok but panels blew out in strong wind. My Morrifield handles strong winds very well
Kelly Brindle
I have a Morrifield Tunnelhouse and we live on a cliff with high winds. We have had ours for nearly 7 years and its amazing. I’d definitely recommend their products
Sarah Howe
We have two Morrifield’s. We live in a high/wind/rain/ occasional snow zone. They survived Cyclone Gita which we got hammered by without any injuries so you’ll definitely be good to go with one of them! Im trying to convince hubby we need a third!
Mandy Hansen
I only wished I had got a bigger tunnelhouse, they are fantastic, we are in Ida Valley, Central Otago
Janette Armstrong
We LOVE our greenhouse. We built standing height beds in our 5m one and I have constant supply of veg year round. We live on the West Coast of the South Island and our tunnelhouse is withstanding all our crazy weather we have here. Highly recommend.
Barbara Giles
The absolute best thing we have purchased in years. 1000 feet above sea level in north Canterbury and still have tomatoes left in July and have just picked this morning the last of the beautiful capsicum. To still have all my salad needs still at this time of the year is so good. Lettuces, Spring Onions plus Broccoli, Cabbage, Caulis, Snow peas
Debbie Hills
Love my Morrifield, the guys put it up for me, and it is still standing firm after all the storms. Eating Lettuce in Winter, along with some winter veges. Looking forward to Tomatoes and Cucumbers again this Summer. Well worth it and it will pay for itself in a few years.
