Action model

Helios Master

The flagship model that puts every garden ambition within reach

Thinking big? Think Helios Master. With an impressive gutter height of 201 cm and floor areas up to 23 m², this top-of-the-range model offers unparalleled freedom: kitchen garden paradise, garden room, studio or home office, you decide. Even climbing plants have all the room they need to grow freely. Our ready-to-go packages make it easy to create a greenhouse you'll enjoy for a lifetime.

Fixed configurations, intelligently assembled from the most popular models!

Our Action Models share the same materials, features and finish as our Custom Models. By optimising, controlling costs and producing at scale by keeping everything as ‘standard’ as possible, we offer top quality at an exceptionally competitive price!

Please note: limited modifications to the design, but the full range of accessories is available!

Action Model

M23

236 cm
310 cm
201 cm
260 cm

Included:

1 sliding door, 3 roof windows, and 1 louver window

Action Model

M24

236 cm
458 cm
201 cm
260 cm

Included:

1 sliding door, 3 roof windows, and 1 louver window

Action Model

M34

310 cm
458 cm
201 cm
274 cm

Included:

1 double sliding door, 3 roof windows, and 1 louver window

Action Model

M36

310 cm
605 cm
201 cm
274 cm

Included:

1 double sliding door, 4 roof windows, and 1 louver window

Action Model

M46

384 cm
605 cm
201 cm
278 cm

Included:

1 double sliding door, 4 roof windows, and 1 louver window

A: width B: length H1: eave height. H2: ridge height

Looking for expert advice?

Your local Janssens dealer is here to help!

Drawing on 80 years of expertise and experience in professional greenhouse construction, Janssens has developed its own proprietary profile system, the foundation of our current range of garden greenhouses.

Five core principles guide everything we do: craftsmanship, the best price-to-quality ratio, durable and low-maintenance materials, modular construction and a product that is hassle-free for life.

Key features:

Premium construction: proven design with full certification
Paint finish: powder coating to Qualicoat standard
Closed hollow aluminium profiles, slender yet generously dimensioned for outstanding stability
Aluminium foundation frame always included, neatly mitred for a cleaner, more elegant finish
- Optional: low threshold at the doors
Rubber glazing strips with anti-stretch cord to prevent expansion and contraction
Deep gutters with integrated condensation channel
Aluminium rainwater downpipes in dia. 40
Sliding doors with or without low threshold
ESG Safety glass: 4 mm clear thermally toughened float glass
All fixings in stainless steel

This model is available in 5 sizes:

M23

A width: 236 cm
B length: 310 cm
H1 gutter height: 201 cm
H2 ridge height: 260 cm
M2 7.31 m²
M3 16.83 m³

M24

A width: 236 cm
B length: 458 cm
H1 gutter height: 201 cm
H2 ridge height: 260 cm
M2 10.79 m²
M3 24.85 m³

M34

A width: 310 cm
B length: 458 cm
H1 gutter height: 201 cm
H2 ridge height: 274 cm
M2 14.17 m²
M3 33.61 m³

M36

A width: 310 cm
B length: 605 cm
H1 gutter height: 201 cm
H2 ridge height: 274 cm
M2 18.74 m²
M3 44.46 m³

M46

A width: 384 cm
B length: 605 cm
H1 gutter height: 201 cm
H2 ridge height: 278 cm
M2 14.17 m²
M3 33.61 m³

Add-ons (already included with Action Models)

Accessories
Janssens offers a wide range of optional accessories: from seedtrays, tablers and shelves to hanging systems.

What makes a Janssens unique

Enjoy years of maintenance-free use

Durability

Materials and design focused on weather resistance, ease of maintenance, and timeless design.

Wide range & custom-made

From ‘action models’ (standard models) to fully customizable greenhouses with a choice of dimensions, doors, windows, and options.

Top-quality materials

We use maintenance-free aluminium, 4 mm safety glass, durable rubber seals, and stainless steel fasteners.

More standard models

Discover all our Action Models

Our Action Models are ready-to-use Janssens packages for those who want to get started quickly. From the spacious Helios Master to the EOS Junior T with its classic T-shape. Each package delivers full Janssens quality in a format that can be installed immediately.

Eos Junior

Classic appeal, compact footprint, a timeless starting point.

freestanding
steep british roof
traditional continental roof

Eos Junior T

Stylish T-shape where growing and lounging come together.

freestanding
steep british roof
T-shape
traditional continental roof

Pyramide

An elegant garden pavilion that transforms your garden into an oasis.

freestanding
pyramid roof

Helios Urban

Compact on the outside, surprisingly spacious on the inside.

freestanding
traditional continental roof

Helios Senior

The versatile classic for every kitchen garden enthusiast

freestanding
traditional continental roof

You buy a greenhouse,

we plant a tree ...

Every greenhouse we make helps not only your garden grow, but the world too. For every greenhouse sold, we plant a tree together with Go Forest in Peru or the Congo.

This way, we contribute to global reforestation and a better future for our planet.

Find your local Janssens dealer

Janssens sells exclusively through authorised dealers. Our international network provides personalised advice, local expertise and professional installation guidance, across Europe, Scandinavia and the United States.