Installation requires that you purchase the Base Plinth Option above. You MUST have a surface of slabs, concrete or decking. NOT soil or gravel.
Call to Order: 0800 098 8877
0800 098 8877
£15 OFF! Use code AUTUMN15 in the basket min order £449 (Greenhouses)
Janssens Helios Urban 5x8 Greenhouse in Black
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
610mm (2′) x 1610mm (5′ 3″) (aperture)
Growing Area:
5.0m2
Minimum Base Size
2360mm (7′ 8″) x 1620mm (5′ 3″)
Quick Code: P172856
Elevate your gardening experience with the Janssens Helios Urban Greenhouse - where modern functionality meets classic Victorian charm. Featuring a robust aluminium frame, toughened safety glass, and a 13-year warranty, this greenhouse is designed to withstand the harshest weather conditions while providing a stylish and practical space for your plants to thrive.
Get it installed by Professionals:
Get it installed by Professionals?
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. This may extend the standard delivery time by 2-4 weeks.
Installation is only available in these postcode areas: B, BA, BB, BD, BL, BN, BS, CA, CB, CH, CO, CR, CT, CW, CV, CV, DA, DE, DE, DH, DL, DN, DY, EH, GL, GL, GU, HD, HG, HP, HU, HX, IP, KA, KT, LA, LE, LL, LN, L, LS, M, ME, MK, ML, NE, NG, NN, NR, OX, OL, PE, PR, RG, RH, SE, SG, SK, SM, SN, ST, SW, SY, TF, TN, TS, TW, WA, WF, WN, WR, WS, WS, WV, YO.
No Installation
Installation
£450
Staging information
Janssens Colour Coded Full Length Integrated Staging - £110.00
Add the Colour Coded Full Length 236cm long integrated shelving to the rear of your greenhouse to help retain your floor space
Janssens Colour Coded Seed Tray Shelving - £249.00
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 Black - £74.00
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 - £75.00
Add the Colour Coded 150cm long x 23cm wide integrated shelving to your greenhouse to help retain your floor space
2 Tier Staging Black - £99.00
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 Black - £49.00
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 - £125.00
Add the Colour Coded 150cm long x 53cm wide integrated staging to your greenhouse to help retain your floor space
Ventilation, Shading and Crestings information
Auto Louvre Opener - £55.00
This automatic opener mechanism will open your louvre window for you when you’re not around. No need to worry about ventilation, this does it automatically for you! (Does not include louvre window).
Janssens Colour Coded Roof Cresting - £250.00
Complete the look of your Janssens greenhouse with ridge crestings
Extras information
Hygrometer - £17.00
This Hygrometer will measure the humidity levels inside your greenhouse.
Soil Thermometer - £29.00
This Soil Thermometer will let you track the temperature of your soil inside the greenhouse.
Max/Min Thermometer - £23.00
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 - £54.00
Add this 100L water butt kit that includes: Butt, Tap & Lid - Black Stand
The Janssens Helios Urban 5x8 Greenhouse in Black 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 3' x 7ft 7')
- Aluminium Frame with Tubular and Box Section for Superior Strength.
- Black 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 information: Installation will be carried out around 14-21 working days after delivery. Optional Installation will only be carried out on a surface of slabs or concrete and only with the recommended base plinth. You may be charged for accessories Installation is for the Greenhouse only and does not include staging, accessories etc
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
610mm (2′) x 1610mm (5′ 3″) (aperture)
Growing Area:
5.0m2
Minimum Base Size
2360mm (7′ 8″) x 1620mm (5′ 3″)
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!
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.
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
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!
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,
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
Effortless Assembly at Your Fingertips
Set up your new greenhouse with ease. Every model includes:
- Detailed step-by-step manual
- Comprehensive assembly video
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 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.
