

The DDL® GmbH
Implementation technology & sealing systems
For over 20 years we have been developing and manufacturing feedthrough technology & sealing systems – wall feedthroughs, pipe feedthroughs and cable feedthroughs – for the construction industry.

Documents & Brochures
Find brochures, flyers, assembly instructions, schematic drawings, test documents and tender texts available for download.
News
The new DDL website
Experience all the products and information in our new clear design. read more ›
New management
On August 1st, Steffen Handte took over the position of Managing Director at DDL GmbH. Steffen Handte has been part… read more ›
Successful merger of DDL GmbH with the svt Group
Press release read more ›