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Tundish with integrated step protection insert for setting base slab in concrete for optimum sealing to the underground sewer pipe. To compensate an offset (after concreting) between downpipe and base drain in any direction.

ETGAR building developer package for building services outlets

For buildings without a basement


For routing and distributing electric power and communication lines from the building to the property's surrounding grounds.


Wall collar


Water barrier flange for water pressure-tight integration of waste water pipelines in floor slabs.

Multi-line building package

For buildings without a basement


For the collective feeding in and sealing of all supply lines (power, water, telecommunications, gas).

Earthing wall collar

for round and flat conductors


Wassersperrflansch zum druckdichten Einbinden von Erdungsleitern in Bodenplatten oder Betonwände.

Foil sleeve

for entries through the floor slab

HFM 1x...

Hauff foil sleeve for secure connection of entries through the slab to a vapour barrier, radon foil or other sheet-type seal on the slab.

BD-Fix with foil flange

Slab entry


For connecting KG/HT pipes. Gastight and watertight connection to the slab thanks to integrated water barrier flange. With foil flange for connection to a bituminous thick coating, weldable sheet or vapour barrier.

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Single building entries

Single building entries from Hauff-Technik can be relied upon for professional and reliable seals between buildings and supply lines for gas, water, power or telecommunications. Whether through basement walls or floor slabs, they can be installed quickly and safely in a matter of minutes and are gastight and watertight up to 1 bar.

Our single building entries are available in dry construction for use directly in core drills or wall sleeves as well as in the form of the innovative quick installation system MIS. The versatile MIS system features components that are compatible for use in all standard types of wall, and it is virtually impossible to make a mistake during the installation process.

In addition to the standard open construction, in many cases it is possible to create a building connection by pulling through an empty conduit, without the need for major groundwork. Our single building entries for trenchless construction do not require an installation trench on the outside of the building. The building entries can be installed entirely from the inside of the building, making them ideal for use if the building connection has been built over or is difficult to access.

Like our open construction single building entries, with our trenchless installation method, we also guarantee that the building entry will subsequently benefit from professional sealing.

Single building entries

Through the wall - wall still to be concreted

Through the wall - wall already exists (open construction)

Dry installation

Resin injection system