Engineering office for structural planning, fire protection, building physics, and expert reports in general civil construction
IDK Kleinjohann GmbH & Co. KG
Cologne · BerlinNew on Amplifa
About IDK Kleinjohann
IDK Kleinjohann GmbH & Co. KG is an engineering office specializing in structural planning, based in Cologne with a branch in Berlin. The planning office, founded in 1963 by Dipl.-Ing. Dieter Kleinjohann, has completed more than 2400 projects, many of which shape the cityscape of Cologne. The focus is on providing service-oriented, engineering consultation to the client, as well as realizing all services in the field of structural planning for general civil construction. Specialties include reinforced concrete, prestressed concrete, steel, composite, wood, and glass construction, as well as textile construction and membrane structures. Additionally, the office offers structural fire protection, earthquake reports, engineering monitoring, and expert reports and certifications for thermal, acoustic, and moisture protection in the field of building physics. The company has 35 employees at the Cologne headquarters and five employees at the Berlin branch, totaling around 40 employees.
- Site
- Köln
- Processes
- Structural Planning, Engineering Consultation for the Client, Structural Fire Protection, Earthquake Reports, Engineering Monitoring, Expert Reports and Certifications for Thermal, Acoustic, and Moisture Protection (Building Physics), Quality Management
- Materials
- Structural Planning, Reinforced and Prestressed Concrete Construction, Steel and Composite Construction, Wood Construction, Glass and Membrane Construction, Structural Fire Protection, Building Physics
- Certificates
- QM-System Planer am Bau (certified quality management system), QM-System Planer am Bau (certified), DIN ISO 9001
- Founded
- 1963
- Employees
- 40
- Industries
- General Civil Construction, Engineering Offices / Structural Planning
- 01
Engineering Consultation for the Client
- 02
Structural Planning
- 03
Earthquake and Fire Protection Reports
- 04
Engineering Monitoring
- 05
Expert Reports and Building Physics Certifications
- 06
Quality Management
Services and Specialties
Structural Planning
Planning and realization of structures in general civil construction, on time and cost-optimized.
Reinforced and Prestressed Concrete Construction
Design and calculation of concrete structures.
Steel and Composite Construction
Planning of steel and composite structures.
Wood Construction
Structural planning of wooden constructions.
Glass and Membrane Construction
Planning of glass structures, textile construction, and membrane structures.
Structural Fire Protection
Fire protection concepts and reports.
Building Physics
Expert reports and certifications for thermal, acoustic, and moisture protection.
Locations
Köln
DEHeadquarters / Main Office
- Materials
- Reinforced concrete, Prestressed concrete, Steel, Composite, Wood, Glass, Membrane
Berlin
DEBranch Office
- Materials
- Reinforced concrete, Prestressed concrete, Steel, Composite, Wood, Glass, Membrane
Inside the production
Industries
Additional services
Quality Management
The office uses a certified quality management system according to the QM-System Planer am Bau, supplemented by a quality engineer hired in 2008 and a 140-page QM manual. Structured self-assessment and continuous improvement processes ensure adherence to deadlines, cost awareness, and site management.
| Evidence | Köln |
|---|---|
| QM-System Planer am Bau (certified) | |
| DIN ISO 9001 |
History
- 1963
Founding of the planning office in Cologne by Dipl.-Ing. Dieter Kleinjohann
- 2005
Dipl.-Ing. Oliver Kleinjohann joins the management
- 2008
Hiring of a quality engineer
- 2010
Oliver Kleinjohann assumes sole responsibility in management
- 2011
Introduction of the QM-System Planer am Bau with a 140-page QM manual