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Janssens Helios Urban 5x8 Greenhouse in Green

  • 7ft 8" wide x 5ft 3" deep
  • 4mm Full Length Toughened Safety Glass
  • Extra Strong Green Powder Coated Aluminium Frame
  • Single Sliding Door
  • 11 Blade Louvre Vent
  • Includes Box Section Base Plinth
  • No Clip Rubber Glazing Gasket Strips
  • Gutters and 40mm Aluminium Downpipes
  • Stainless Steel Hardware
  • 13 Year Manufacturers Warranty
Greenhouse Size Diagram

Greenhouse Dimensions

A: Greenhouse width

2360mm (7′ 8″)

B: Greenhouse depth

1620mm (5′ 3″)

C: Ridge height

2170mm (7′ 1″)

D: Eaves height

1810mm (5′ 11″)

E & F: Door Size

700mm (2′ 3″) x 1610mm (5′ 3″) (aperture)

Growing Area:

5.0m2

Minimum Base Size

2360mm (7′ 8″) x 1620mm (5′ 3″)

Customise your Greenhouse

Select your Colour:

๐Ÿ› ๏ธ Get it installed by Professionals:

Installation requires that you purchase the Base Plinth Option if one is available. You MUST have a surface of slabs, concrete, decking or a Dwarf Wall NOT soil or gravel as installation doesn't include any groundwork.

Get it installed by Professionals?

Installation

Please Note: Installation requires an optional base plinth (if available) on a flat, level surface like slabs, concrete, or decking that meets the minimum base size. The package includes the greenhouse, ventilation, and downpipes only; accessories and groundwork are excluded. Installation will be carried out 2-8 weeks after the delivery of your Greenhouse.

๐Ÿ› ๏ธ Installation
ยฃ620

Get your greenhouse installed by our Professional Installers

Add Staging?

Qty 1
Janssens Colour Coded Seed Tray Shelving
+ £262

Add the Colour Coded Full Width 236cm long Seed Tray Shelving to the rear of your greenhouse to help retain your floor space

Qty 1
ยฃ8 off
1 Tier Staging Green
+ £81

This 1 Tier greenhouse staging gives you a handy work surface and storage area. Dimensions: 76cm (H) x 50cm (D) x 120cm (W)

Qty 1
Janssens Integrated Colour Coded Shelving
+ £82

Add the Colour Coded 150cm long x 23cm wide integrated shelving to your greenhouse to help retain your floor space

Qty 1
ยฃ14 off
2 Tier Staging Green
+ £105

This 2 Tier greenhouse staging gives you a handy work surface with additional low level storage. Dimensions: 76cm (H) x 50cm (D) x 120cm (W)

Qty 1
ยฃ5 off
Top Tier Staging Extension Green
+ £54

This little top level silver shelf attaches to 1 or 2 Tier staging to give you a bit more storage space

Qty 1
Qty 1

Staging information

Janssens Colour Coded Full Length Integrated Shelving - ยฃ104.00
Janssens Colour Coded Full Length Integrated Shelving

Add the Colour Coded Full Length 236cm long x 10cm Wide integrated shelving to the rear of your greenhouse to help retain your floor space


Janssens Colour Coded Seed Tray Shelving - ยฃ262.00
Janssens Colour Coded Seed Tray Shelving

Add the Colour Coded Full Width 236cm long Seed Tray Shelving to the rear of your greenhouse to help retain your floor space


1 Tier Staging Green - ยฃ81.00
1 Tier Staging Green

This 1 Tier greenhouse staging gives you a handy work surface and storage area. Dimensions: 76cm (H) x 50cm (D) x 120cm (W)


Janssens Integrated Colour Coded Shelving - ยฃ82.00
Janssens Integrated Colour Coded Shelving

Add the Colour Coded 150cm long x 23cm wide integrated shelving to your greenhouse to help retain your floor space


2 Tier Staging Green - ยฃ105.00
2 Tier Staging Green

This 2 Tier greenhouse staging gives you a handy work surface with additional low level storage. Dimensions: 76cm (H) x 50cm (D) x 120cm (W)


Top Tier Staging Extension Green - ยฃ54.00
Top Tier Staging Extension Green

This little top level silver shelf attaches to 1 or 2 Tier staging to give you a bit more storage space


Janssens Colour Coded Integrated Staging - ยฃ137.00
Janssens Colour Coded Integrated Staging

Add the Colour Coded 150cm long x 53cm wide integrated staging to your greenhouse to help retain your floor space


Add Ventilation, Shading and Crestings?

Curtain Shading
+ £30

Curtain shading will protect your plants from sun scorch and provide shade to moderate temperature. 6ft x 8ft.

Qty 1

Ventilation, Shading and Crestings information

Curtain Shading - ยฃ30.00
Curtain Shading

Curtain shading will protect your plants from sun scorch and provide shade to moderate temperature. 6ft x 8ft.


Janssens Colour Coded Roof Cresting - ยฃ108.00
Janssens Colour Coded Roof Cresting

Complete the look of your Janssens greenhouse with ridge crestings


Add Extras?

Hygrometer
+ £19

This Hygrometer will measure the humidity levels inside your greenhouse.

Soil Thermometer
+ £32

This Soil Thermometer will let you track the temperature of your soil inside the greenhouse.

Max/Min Thermometer
+ £26

This thermometer will tell you your maximum daytime temperature as well as record the lowest night time temperature in your greenhouse.

100L Mini Rainsaver Water Butt
+ £59

Add this 100L water butt kit that includes: Butt, Tap & Lid - Black Stand

Qty 1

Extras information

Hygrometer - ยฃ19.00
Hygrometer

This Hygrometer will measure the humidity levels inside your greenhouse.


Soil Thermometer - ยฃ32.00
Soil Thermometer

This Soil Thermometer will let you track the temperature of your soil inside the greenhouse.


Max/Min Thermometer - ยฃ26.00
Max/Min Thermometer

This thermometer will tell you your maximum daytime temperature as well as record the lowest night time temperature in your greenhouse.


100L Mini Rainsaver Water Butt - ยฃ59.00
100L Mini Rainsaver Water Butt

Add this 100L water butt kit that includes: Butt, Tap & Lid - Black Stand


The Janssens Helios Urban 5x8 Greenhouse in Green gives you all of the functionality and convenience of a modern greenhouse, with the classic look of a traditional Victorian Greenhouse. Because the sliding door to the greenhouse is on the long side, it`s perfect for a corner of the garden or along a wall or fence line.

All Janssens greenhouses use some of the thickest and strongest Aluminium profiles on the market and combine with the Glazing Gasket to take on the worse of UK weather!

  • 1620mm x 2360mm Dimensions (5ft 3รƒยขรขย‚ยฌร‚ย x 7ft 7รƒยขรขย‚ยฌร‚ย)
  • Aluminium Frame with Tubular and Box Section for Superior Strength.
  • Green Powder Coated Frame.
  • Box Section Base Plinth.
  • Single Sliding Door.
  • 4mm Full Length Toughened Safety Glass
  • Rubber Glazing Gasket Strips (no fiddly clips)
  • 11 Blade Louvre Vent
  • Gutters and 40mm Aluminium Downpipes.
  • Stainless Steel Fittings.
  • Step by Step Instruction Manuals with Instructional DVD.
  • 13 Year Manufacturers Warranty.
  • Many Accessories Available - Scroll down this page.

Delivery is currently within 8 weeks for Urban Models, 10-12 Weeks for Master Models and 16 weeks for all other models to UK Mainland. Your exact delivery day will be confirmed with you at least 3 days before the day by telephone.

Please note Some Scottish postal codes are subject to delivery charges.

Optional Installation: If selected, Installation will be carried out 1-8 weeks after the delivery of your Greenhouse. The Installation Team will contact you directly to book in your installation.Our installation service requires a level concrete, slabbed, or decked area to the minimum size stated on the website. Failure to provide a suitable base area may result in you being charged for the failed installation. If you require staging or shelving assembly, you can arrange it directly with the installation team.

Greenhouse Size Diagram

Greenhouse Dimensions

A: Greenhouse width

2360mm (7′ 8″)

B: Greenhouse depth

1620mm (5′ 3″)

C: Ridge height

2170mm (7′ 1″)

D: Eaves height

1810mm (5′ 11″)

E & F: Door Size

700mm (2′ 3″) x 1610mm (5′ 3″) (aperture)

Growing Area:

5.0m2

Minimum Base Size

2360mm (7′ 8″) x 1620mm (5′ 3″)

Palram Silver Steel Base
Included with ALL Janssens Greenhouses.

The Janssens Foundation Base eliminates the need for a full concrete foundation. Simply assemble your greenhouse and secure it with our quick 4-corner anchoring system!

Toughened Safety Glass
Premium 4mm Toughened Glass

JANSSENS delivers superior protection with our full-length 4mm toughened glass. Six times stronger than ordinary glass, it offers exceptional durability and safety. Enjoy crystal-clear views and peace of mind, knowing you're shielded by the industry's safest greenhouse glass. Polished edges ensure easy, safe assembly, letting you focus on what truly matters – your thriving garden.

Janssens Glazing Gasket
Weather-Tight Seal: Superior Protection Guaranteed

Don't let wind effect your investment with Janssens state-of-the-art glazing system. Featuring:

  • Advanced rubber strip technology
  • Unbeatable water and wind resistance
  • Seamless, long-lasting seal
Janssens Glazing Bars
Industry-Leading Strength in Every Frame

Janssens cutting-edge tubular aluminium glazing bars are among the sturdiest in today's greenhouse market. Enjoy peace of mind knowing your investment is protected by top-tier materials that outlast and outperform the competition!

Janssens Roof Ridge Profile
Built to Last: Premium Stainless Steel Hardware

Every bolt, nut, and fitting in your JANSSENS greenhouse is crafted from top-quality stainless steel to withstand the elements,

Janssens Roof Ridge Profile
Smart Water Management System Included

Maximize your growing potential with our comprehensive water control solution:

  • Efficient gutters to collect rainwater
  • Clever condensation channels to manage humidity
  • Large 40mm downpipes for rapid drainage
Janssens Instructions
Effortless Assembly at Your Fingertips

Set up your new greenhouse with ease. Every model includes:

  • Detailed step-by-step manual
  • Comprehensive assembly video
Janssens Qualicoat Powder Coating
Lasting Beauty: Premium Powder-Coated Finish

Janssens only use Qualicoat-certified powder coating on all of their Greenhouse products. This high-quality finish ensures your JANSSENS greenhouse stays stunning for years. Contact us for custom RAL colours.

Janssens Greenhouse
Janssens Greenhouses

Janssens Greenhouses were established in 1946 in Lier, Belgium and is now a super modern 6500sqm production facility equipped with the very latest high-tech automated machinery. Many years of production and the very latest design and manufacturing processes make a Janssens Greenhouse one of the best high end greenhouses you can buy today.