Polytunnel Installation Costs Explained

Ask a dozen growers what they paid for a polytunnel and you’ll get a dozen different figures. That’s not because nobody knows. It’s because the price depends on options most quotes don’t mention until you’re already halfway through buying.

So let’s fix that.

How Much Do Polytunnels Really Cost?

Take a small domestic tunnel, 3 metres wide and 6 metres long. The frame and cover alone might set you back a few hundred pounds. A large commercial multi-span structure covering an acre sits in a completely different price bracket. Both are “polytunnels”. Both give a completely different answer when you ask how much polytunnels cost.

The frame and cover are only part of the bill. A simple garden tunnel might need only modest additional spend on labour, groundwork and fixings, but a large commercial span with concrete anchors and reinforced doors can run into several thousand pounds. That’s why polytunnel installation quotes vary so much from one site to the next. It’s also why there is no useful single figure for polytunnel pricing. Anyone asking what a polytunnel costs should expect a range rather than one fixed number.

If you’re pricing up a small polytunnel, expect the kit itself to be the bulk of the spend. Larger structures flip that ratio. On some large commercial jobs, labour, ground preparation and foundations can rival or exceed the cost of the plastic and steel. Anyone working out what a polytunnel will cost needs to treat the kit price and the polytunnel installation price as two separate things. It’s one of the first things to check for your own project. Getting a handle on installation costs early on saves a lot of confusion later.

What Actually Drives the Cost of Polytunnel Installation?

Size matters, sure. But it’s far from the whole story. Ground condition matters just as much. A flat, well-drained plot is generally quicker and cheaper to prepare than a sloping or poorly drained site. A sloped field or heavy clay soil might need proper groundworks before a single hoop goes up. That can add time and cost to the installation. It’s exactly the kind of detail that pushes the price up or down on any given site, and it’s a big reason why the prices can vary so much.

Wind exposure changes things too. An exposed hillside site may need more substantial anchoring, extra bracing or a heavier-duty specification than a sheltered garden.

 

Size doesn’t change that. Skip that step to save money, and you’ll pay for it twice once the first autumn gale arrives. Site conditions are another reason installation costs shift so much between jobs. Anyone pricing up a polytunnel needs to think about the plot, not just the tunnel. It’s another reminder that the final cost depends on much more than size.

Then there’s the access. A tunnel going up in a back garden with a narrow gate takes longer to fit than the same tunnel dropped onto an open field with a tractor and trailer. Time on site costs money. That applies whether you’re paying someone else or doing the polytunnel install yourself. It’s one more factor that changes the final price for your particular plot. Good planning at this stage makes any polytunnel installation run more smoothly. It’s one more reason a single, simple price tag rarely exists. Get quotes for tunnel installation early on. It helps you budget properly before work begins, and it gives you a clearer picture of how much polytunnels cost on your own ground. Even a rough estimate at this stage can help you avoid nasty surprises further down the line.

How Long Does It Take to Put Up a Polytunnel?

Some straightforward small tunnels can be erected in a day by two competent people, provided the ground is prepared and the right tools are available. Larger multi-span installations can take several days or longer once groundwork, end frames, doors and anchoring are included.

Rushing it doesn’t save money. A frame that isn’t square. Hoops spaced unevenly. A cover pulled tight before the base rails are secure. Any of these shortens the life of the structure. Getting polytunnel installation right the first time is cheaper than fixing it later. Time spent planning properly is rarely wasted. It often makes a real difference to the final bill once repairs are factored in. A rushed installation almost always ends up costing more in the long run; that’s worth remembering when comparing quotes from different suppliers. A simple installation plan can save time and avoid expensive mistakes.

DIY or Get It Installed?

Plenty of smallholders and home growers fit their own tunnels. For smaller kits, that’s entirely doable with a weekend, a couple of spare hands and a clear set of instructions. It’s a sensible way to keep costs down if you’re pricing up a modest plot. DIY polytunnel installation usually works out cheapest for a small garden setup, as long as you follow the steps carefully and don’t rush it. This is often the first thing people weigh up when they start pricing a garden-sized project, right alongside the basic question of how much do polytunnels cost to buy in the first place.

Commercial growers weighing up multi-span structures across acres of ground tend to bring in installers. The scale, the groundworks and getting wind loading right make this a completely different job from a garden tunnel. Professional polytunnel installation tends to pay for itself on bigger sites, where mistakes cost far more to put right. For bigger projects, professional installation is usually worth the extra spend, even though it adds to the overall bill compared with a DIY build. Whichever route you choose, plan your installation properly from the start. It pays off, and it gives you a realistic sense of how much polytunnels cost once labour is added to the kit price.

Getting a Clear Answer on Cost

Generic figures only get you so far. Site conditions, size, wind exposure, access and specification all affect the final price, so the most reliable figure is a quote based on your actual site.

Want a proper breakdown for your own site? Whether it’s one small tunnel or a full commercial multi-span, reach out to the team at Polytunnels R Us and work from real numbers instead of guessing. Get a proper site quote before you commit. Do this whether you’re comparing polytunnel installation options or still weighing up what the right setup will cost for your own land, because the final cost depends on your own site, specification and installation requirements.