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Attached Greenhouse Viola
Viola II2.09 m

Available in
different lengths
(1.00 m pitch)

2.10 m

up to 150 kg/m²

Viola III3.09 m

The space-saving alternative to the freestanding greenhouse is the lean-to greenhouse Viola. Thanks to various customisation options, it seamlessly blends in with your residential building. An attached greenhouse is a beautiful alternative to a freestanding greenhouse. You require less space without having to compromise on quality. Thanks to the close proximity of the greenhouse to the house, fragrant herbs for seasoning dishes can always be within easy reach. A greenhouse as an lean-to greenhouse is space-saving, efficient, and also serves as an energy buffer for the building. Due to its available small depth, the “Viola” is also ideal as an entrance canopy or as a balcony canopy.

Twin-wall sheets Seal profiles and constructions Seal 40 Years warranty
  • Uniquely developed, particularly stable aluminium profiles
  • Tall standing wall height of 2.10 m
  • Space-saving and efficient
  • 16 mm thick glazing
  • Real glass possible in the roof area
  • No crossbars in the glazing panels (stable basic structure)
  • Lots of accessories possible
Twin-wall sheets Seal profiles and constructions Seal 40 Years warranty


Viola attached greenhouse
Installing the decorative bar

High-quality aluminium profiles

As a greenhouse manufacturer, we develop our own high-quality aluminum profile systems that precisely meet the highest requirements. Our range now includes approximately 450 proprietary profile cross-sections. Roof, gutter, and base profiles are particularly important for stability. All load-bearing profiles are continuous, thus preventing weak points (leakages).


The attached greenhouse can be customised to fit your home. The aluminium profiles can be coated in RAL colours.

Aluminium capping bars

Instead of using glass clips, we use high-quality aluminum capping bars to hold the glazing in place. Unlike plastic capping bars, these do not rot or become porous – providing optimal support with excellent insulation properties. Additionally, replacing the glass panels afterward is easily possible.

Mounting the greenhouse side walls

Well thought out

All greenhouses from Hoklartherm have a modular system. This allows them to be easily assembled using a step-by-step process. Windows and doors are pre-assembled. To ensure everything goes smoothly, all products undergo a strict quality control before delivery.

Rain gutter at greenhouse

Efficient rain gutters

The Viola is equipped with extensively tested and large rain gutters. This allows for optimal conditions for efficient water management in connection with a rain barrel.


Sliding door
Divided revolving door
Undivided revolving door

Further options:
Additional roof windows (pre-glazed) incl. automatic window lifters
Sliding window

PC-twin-wall-sheets 16 mm, transparent
ISO safety glass / ISO glass 16 mm
SDP Plexiglas “ALLTOP” 16 mm

Attached Greenhouse Viola


Size is not the only factor when it comes to greenhouses; the material plays a crucial role as well. Specially developed aluminium profiles from Hoklartherm ensure a high load capacity – the crucial point for many greenhouses when it comes to safety and durability. Upon request, we are happy to customize our products to your specific desires. For example, you can choose ISO safety glass: This real glass not only meets the highest aesthetic standards, but is also particularly stable and sustainable.

Assembly instructions



*Other special colours available on request.


Your contact for the topic Greenhouses
Customer Service Jan Weber

Jan Weber

+49 4489 - 9281 - 16
You can reach me Monday-Friday from 7.00 a.m. to 6.00 p.m. and Saturday from 9.00 a.m. to 4.00 p.m.

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We will be happy to advise you:

As a passionate manufacturer, we have been producing garden ideas made of glass and metal in Apen for over 40 years. We want your garden to be your absolute favorite place where you feel at home at all times. That's why we are at your side from the initial consultation through to installation - for greenhouses, pavilions, conservatories and more.

Send product inquiry now

One product, many possibilities.
Wir setzen auf persönliche Beratung für lange Freude an Ihrem Gartenprojekt.

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Customer Service Jan Weber

I will be happy to advise you:

+49 4489 - 9281 - 16

Jan Weber

+49 4489 - 9281 - 16

You can reach me Monday-Friday from 7:00 to 18:00 o'clock and Saturday from 9:00 to 16:00.

You are also welcome to send us an e-mail to or book a consultation appointment.