








Janssens Helios Master
From £3,118.00
The largest and most versatile greenhouse of the Janssens Action Models – Janssens Helios Master.
The Helios Master is a high‑performance, classic‑styled greenhouse combining elegant proportions with robust commercial‑grade construction. Ideal for serious growers, dining areas or garden rooms.
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Action Model greenhouses are fixed‑configuration, ready‑to‑ship units designed for faster delivery and an outstanding price‑performance ratio. By offering a set specification of proven components and sizes (including the Helios Master as the largest, most versatile Action option), these models reduce lead times and cost while keeping build quality and durability consistent with Janssens standards.
The Helios Master pairs traditional greenhouse aesthetics with modern engineering for superior strength, durability and usability. Constructed from slim, ultra‑rigid aluminium profiles and glazed with 4mm toughened safety glass, it offers excellent light transmission, low maintenance and reliable weather resistance. Generous internal volumes and flexible configurations make it suitable for intensive cultivation or sophisticated garden living spaces.
Practical features include a self‑supporting base profile, internal condensation guttering, external roof gutters and stainless‑steel fixings; finishes are available in plain aluminium, powder coated Black or Fir Green. Choose from multiple lengths and widths and add options such as automatic roof vents, low threshold door, shelving and staging to tailor the Helios Master to your project.
Janssens Helios Master, with its gutter height of 2.1m, is the largest Action model in our Helios series. That means a sea of space with a host of uses: from tomato greenhouse or wintering place for your frost-sensitive plants to beautiful garden room. The arrangement of windows and doors focuses on optimal ventilation, so it’s great for relaxing or working.
Key features
- Available in 5 sizes
- Gutter height: 201 cm & ridge height: 260 cm to 278 cm
- Slim, ultra‑strong aluminium tubular profiles
- 4mm toughened safety glass with durable sealing rubbers
- Self‑supporting bottom profile, internal condensation gutter, external gutters and downpipes
- Stainless‑steel fixings and durable powder‑coated finish
The 3D Configurator in the link below is a great way to design your perfect Janssens; if you’d prefer to discuss options and have us do the designing for you, just get in touch.
Design, Save and send us your unique design code and we’ll provide a quotation.
Delivery
Janssens Greenhouse Delivery Times:
Janssens Action Models: 4-6 weeks subject to stock.
Popular, practical, value-focused models with set specifications. This allows for quicker delivery and lower prices.
Janssens Custom Models: 6-12 weeks
Bespoke, made‑to‑order greenhouses with endless options for size, colours, glazing, doors, vents and accessories so you can tailor every detail to your needs.
Delivery information:
- Prices shown on the example models include UK mainland delivery, excluding the following postcodes (AB, DD, IV, KW, PA, PH).
- Delivery is subject to suitable access; access requirements will be discussed when arranging delivery.
- If you have access restrictions to your property please contact us directly to discuss and clarify details.
- If your address is difficult to find, or the postcode does not locate your property, please inform us at the time of ordering.
Installation
Installation is currently only available for NR*, IP* and PE* postcodes. If you’d like your Greenhouse installed by our expert team, please get in touch.
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