Highlander
Very happy with my polytunnel. Great design. No faults found. Excellent customer service from Northern Polytunnels, helpful information provided regarding assembly.
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Made In UK
All the hoops, brackets and polythene are made right here in the UK.
Strong by Design
Commercial grade framework designed to withstand even the most exposed locations.
No Rotten Timber
Our aluminium fixing system is quick and easy. The all metal construction means it will last for years and years.
Simple Cover Tensioning
Simple system to allow you to re-tension your cover throughout the season.
Quick & Easy Covering
Our W-Wire fixing system is quick and easy, making it perfect for a first time polytunnel build.
Aluminium Sliding Doors
Hinged doors have a tendancy to catch the wind and break, this is why we offer a sliding door as standard.
Technical Specification
Our 2 piece hoops are made using 50mm MAGNAtube for superior strength and durability, the coating is guaranteed to last for 20 years without corrosion, no additional storm bracing required.
Hoops that are made from 3 or 4 pieces are much more convenient to deliver, but compromise on strength and often require additional "belts and braces" to support them.
For our Superstrength polytunnel we only recommend the strongest foundation options, traditional foundation tubes concreted into the ground, or base plates designed to be fixed directly onto a concrete base.
Unlike Timber, Aluminium profiles are free from defects like knots and splits and will be sure to last a lifetime. The aluminium profiles are designed to take our wiggle wire fixing system making it fast and simple to attach your polythene. If you need to redo a section of your cover you can simply unclip the wiggle wire, make any adjustments to your polythene and then push the wiggle wire back into place.
British made, 7-layer, UV open polythene that has been specifically designed for the British weather. Both 720g thickness, with anti-condensation properties.
Lumisol Diffused allows up to 90% light transmission but the diffusion in the film scatters the light as it passes through the polythene. This allows the light to penetrate deep into the plant canopy as it hits the plants from all directions, not just from the direction of the sun. Lumisol diffused can also reduce mid-day summertime temperatures by 2-4ºC.
Lumisol Clear allows up to 92% of light transmission. In areas of the UK where light levels can be lower, clear polythene allows more light to enter and can bring picking time forward.
The doors are generally the hardest part to get right when using timber as all the pieces need to be cut accurately and assembled squarely, then when you’ve done all that, hinged doors have a tendency to drop over time.
The Easy Build has a new aluminium sliding door with laser-cut, bolt-together corner plates making it easy to assemble. A brush strip to seal the door and wiggle-wire to make fixing the polythene on the door simple.
Available as a single 0.7m wide sliding door as standard, or you can upgrade to a 1.7m double sliding door for a wider opening.
Our cover tensioning system makes tensioning your polythene throughout the season fast and simple – Loosen the hoop collar, lift the hoop, lift the collar and retighten in place.
We install this simple tensioning system on all our polytunnels because we know how essential maintaining good cover tension is to extending the life of your polythene. Polythene should be pulled taught like a drum skin to prevent it from vibrating in the wind and degrading prematurely.
Our 2 piece hoops are made using 50mm MAGNAtube for superior strength and durability, the coating is guaranteed to last for 20 years without corrosion, no additional storm bracing required.
Hoops that are made from 3 or 4 pieces are much more convenient to deliver, but compromise on strength and often require additional "belts and braces" to support them.
Positioned at the top of the polytunnel and running down the length the ridge bar provides stability to the structure and can also be a good place for hanging baskets or crop support.
Our ridge tube is 32mm tube and comes as standard with your Polytunnel. Additional ridges can be added to your tunnel for crop supports and can be positioning at almost any point along the hoop.
Supplied as standard - acts as insulation between the metal and the polythene to prevent the build up of damaging hot spots and prolong the cover life of your polythene sheet.
Frequently Asked Questions
There’s lots to consider when purchasing your first polytunnel and we appreciate this may be a little overwhelming. We’ve put together a blog post with our advice for planning your first Polytunnel, you can read it here.
Depending on your experience and the size of the structure, a hobby polytunnel will take 1 – 2 days to construct. It’s best to set aside a weekend and take your time, sheeting your polytunnel must be done on a still day.
Yes, you can build your Polytunnel on a slope. If you can, we would always recommend levelling the ground before installing a tunnel, although it may be hard work it will make the assembly of the tunnel and working inside much easier. That being said, building on a slope can be managed and our polytunnels are designed to take a reasonable slope. It’s typically best to slope down the length of the tunnel instead of across the width as this can make the smooth operation of doors difficult. For more information and tips on building on a slope check out our in-depth guide here.
Only basic tools are required to construct your Polytunnel, although we would recommend some heavy-duty wire cutters for trimming down wiggle wire.
Lumisol Clear and Diffused are both British made, 7-layer anti-drip films specifically designed for the British weather. Neither is a bad option, but there are some clear differences between the two.
Lumisol Clear is a UV open film that allows 92% of light to reach your plants. The added heat & light can lead to earlier harvesting and a longer post-harvest shelf life. Particularly popular in the North and West regions of the UK where lower light levels naturally occur. This UV open film promotes plant antioxidants which are good for plant health and encourage stronger plants.
Lumisol Diffused is a light diffusing polythene that scatters the light as it passes through the polythene. This enables the light to penetrate deep into the plant canopy as it hits the plants in all directions, not just from the direction of the sun. Light diffusing polythene also allows more light into your polytunnel when the sun is low in the sky, as the diffusing process deflects more light downwards into the crops. Diffused polythene allows 90% light transmission and will reduce mid-day summertime temperatures by 2-4°C.
Our British Made polythene is guaranteed against degradation for 5 seasons*. When well cared for and properly tensioned its likely it will last well beyond this. We know how important well tensioned polythene is, which is why all our polytunnels use our unique polythene tensioning system to ensure you can easily get that drum tight finish season after season.
*Incremental guarantee from invoice date
We are a third-generation family business established in 1969 and pride ourselves on striving to supply quality, British made products at the best possible price directly from the manufacturer. We use our industry experience as a supplier of commercial horticultural structures to ensure your Domestic Polytunnels are market leading products you can rely on season after season.
The Allotment – Our range of polytunnels starts with the entry level Allotment Polytunnel, offering the same high-quality 32mm MAGNAtube coated framework as our hobby and hobby plus Polytunnels but without some of the more costly features. The polythene is trenched into the ground on our Allotment Polytunnel.
The Hobby – The Hobby is our midrange Polytunnel. High quality heavy duty 32mm framework with tanalised timber base rails and door frames. Side ventilation can be added to this model as it has base rails. Some simple woodwork skills are required for the timber elements of this tunnel.
The Easy Build – The Hobby Plus has all the high-quality 32mm MAGNAtube coated framework you’d expect from any of our Polytunnels, but is a full metal construction. Aluminium base rails, door frames and one sliding door as standard. The aluminium side rails make sheeting the Polytunnel simple with our Wiggle Wire system and make the addition of side ventilation straightforward.
The Super Strength – Constructed using commercial Polytunnel tube and fixings to ensure this Polytunnel is suitable for even the most harsh, exposed locations. Full metal construction and all the perks of our Easy Build Polytunnel but with the extra strength you need.
Yes, hotspot tape is always included in the price of your polytunnel. The price we quote is always inclusive of all tapes, screws, brackets and fixings you will need to build your Polytunnel, so no nasty surprises after purchase.
Your Domestic Polytunnel will be delivered by our third-party carrier – DX. Your order will usually be dispatched from us in 24-48 hours, delivery is usually within 24 hours. We offer free delivery to mainland UK on all orders over £150.
Very happy with my polytunnel. Great design. No faults found. Excellent customer service from Northern Polytunnels, helpful information provided regarding assembly.
From the instructional videos to the answers to my detailed questions, the support from Northern PolyTunnels was excellent. As for construction, our Super-Strength “Highlander” tunnel was straight forward to assemble with easy identification of the components needed for each stage via the component bags for each phase. The early autumn storms, which really blow around our site haven’t caused issues. Excellent