Balcony and terrace drainage

Versatile products for exposed areas

When it comes to designing and equipping balconies or terraces, a lot of people immediately turn their thoughts to paving and floor surfaces, furniture, and attractive planting. However, there’s another aspect that first has to be considered in order to maintain the area’s functionality: reliable dewatering. Due to their exposed position, balconies and terraces are very much open to the elements, i.e. precipitation. This has to be collected and safely directed away within the affected area, along balustrades and at the façade. Only by doing this will the structural fabric be protected from potential damage, leaving you to focus on the rest of your outdoor design.
Our standard range of products includes a variety of drainage and dewatering channels, from subtle slotted channels for minimalist yet efficient dewatering to façade channels with larger inlet widths, right over to special solutions such as particularly flat models for Bangkirai terraces. For every channel that we manufacture in line with custom dimensions and requirements, you can choose from a broad selection of suitable gratings that leave nothing to be desired in terms of design.

Trust in more than 45 years of experience

Made-to-measure production from Germany

Bangkirai channel
– shallow drainage channel for wooden terraces

  • specially developed to meet the requirements of balcony and terrace drainage
  • low installation height to fit conventional terrace flooring
  • continuous rows of holes along the base to secure to the substructure
  • extensive range of gratings to cover the channel
  • custom dimensions possible on request


Hydra drainage channel
– for stepless drainage

  • height can be smoothly adjusted at the sides
  • length can be infinitely extended without connectors thanks to modular construction
  • grating supports face outwards to create distance between the wall connection and the channel body
  • can be supplied in custom widths and heights


Hydra Express drainage channel
– lightning-fast adjustment for every installation

  • height can be smoothly adjusted from above
  • channel can be quickly and conveniently adapted to the installation location
  • extendible with the aid of U-connectors
  • customer-specific measurements can be realised at any time


Hydra drainage gully
– the solution for gravel fills

  • height-adjustable drainage gully
  • can be raised in combination with a base unit 
  • reliable point drainage for slab flooring loosely laid in gravel fills or chippings
  • fits well with the Subterra branch channel system or drain mats
  • custom inlet widths and installation heights possible


"Stabile" with grating supports facing outwards
– for drainage or dewatering

  • used as a drainage or dewatering channel
  • ideal for use on terraces and balconies or as a façade channel
  • grating supports turned outwards create an open space for the concave profile of the wall connection
  • individual inlet widths and installation heights possible on request
  • large selection of compatible gratings

"Cubo" with inlying grating support
– for drainage or dewatering

  • used as a drainage or dewatering channel
  • grating supports face inwards
  • open space below the grating support facilitates intake of increased volumes of rainfall
  • extensive range of gratings to cover the channel
  • custom dimensions possible on request
  • linear design ensures the channel sits flush to the paved material 


"Fultura" drainage channel
– with height-adjustable stilt supports

  • ideal for elevated floors
  • height-adjustable thanks to stilt supports with articulated feet
  • individual custom measurements possible on request
  • broad range of suitable gratings


– our entire range

  • perfect for our drainage and dewatering channels
  • from mesh gratings to perforated and longitudinal bar gratings right over to double-slit gratings and designer solutions
  • produced to individual measurements on request


Gemini double-slit grating
– distinguished design

  • double-slit grating that fits our drainage and dewatering channels
  • combines the benefits of a box channel with those of a slotted channel
  • polished stainless steel surface or stone inlay optional
  • honoured with the reddot award (best of the best)


Gully gratings
– our entire range

  • broad portfolio with a range of models
  • from mesh gratings to designer solutions
  • precise manufacture for every gully


Drain mats
– for fixed and loose-laying installation 

  • high dewatering capacity for the quick transport of precipitation
  • efficiently prevents pooling
  • with glass fibre mesh: for the fixed installation of ceramic tiles over single grain mortar
  • with special fleece: for loose-laying flooring on unbound, washed gravel or chip layers


Drain mat adapter – reliable channel attachment  

  • Fits our Hydra drainage channel 
  • Attaching element between channel and mat 
  • Prevents slipping and the ingress of gravel, dirt etc. 
  • Simple, precise screw connection 
  • Includes the same drainage holes as the channel 


Hydra inspection channel
– maintenance and cleaning in next to no time

  • quick and convenient upkeep of dewatering systems
  • slab flooring is easy to insert and remove for maintenance and cleaning
  • can be combined with our Hydra, Hydra Express, Stabile or Cubo models
  • three height adjustment ranges
  • individual custom measurements can be easily realised