Civil engineering with experience
With our experience and reliability, we ensure that ideas become viable solutions. We cover a very broad spectrum of services and can operate with several independent asphalt columns! We have the highest standards of quality, efficiency, service, and adherence to deadlines! We also have our own asphalt mixing plant. As one of the last economically independent asphalt producers in southeastern Bavaria, we manufacture and sell from our mixing plant, which is quality-monitored by the TUM (Technical University of Munich) according to the applicable technical contract and delivery conditions.
- Own, modern mixing plant (completely renewed in 2013) with the possibility of adding a high proportion of recycled material (warm addition)
- Own columns with modern installation equipment guarantee high flexibility and fast implementation
- Production for both own construction sites and external customers (external sales)
- Construction and renovation of municipal and private roads, commercial areas, and access roads
- Construction and maintenance of bridge structures of all sizes
- Use of the latest construction machinery and construction methods for long-lasting results
- Property development with all media connections (water, electricity, telecommunications, gas)
- Manufacture of house connections and laying of all supply and disposal lines
- Soil and drainage systems for commercial and residential areas
- Construction of rainwater retention systems
- Testing and documentation of all work in accordance with valid standards
- Planning and routing: Determining the pipeline routes taking into account topography, buildings and existing supply lines.
- Supply lines: Construction and laying of lines for water, waste water, gas, district heating, electricity and telecommunications.
- Excavation creation: Excavation, securing and bracing of excavation pits and pipe trenches.
- Material selection: Use of suitable pipe and line systems (e.g. steel, cast iron, plastic, concrete).
- Laying techniques: Open construction (trench construction) or trenchless methods (e.g. horizontal drilling technology, press drilling, relining).
- Connection and integration: Connection to existing networks and transfer points.
- Securing and protection: Sand bedding, protective pipes, marking tapes, frost protection.
- Quality assurance: Pressure tests, leak tests and documentation.
- Environmental protection and sustainability: Protection of soil and vegetation, restoration of surfaces, use of resource-saving materials.
- Coordination and safety: Coordination with municipalities, utility companies and compliance with occupational safety guidelines.
- Construction of parking areas for commerce, trade and public facilities
- Fastening of access roads, paths and squares with asphalt or paving
Technical competence, equipment and sustainability
Technical Competence & Equipment
- Own modern asphalt mixing plant
- Drone technology for measurement and billing
- Tachymeter setting out and point recording
- Several asphalt columns and pavers in use
Sustainability
- 100% recyclability of asphalt
- Conserving resources through recycling
- Environmentally friendly production according to current standards



Your Contact in Civil Engineering
We are happy to assist you with experience and expertise in all questions and concerns regarding the topic of civil engineering. Whether consulting, planning or implementation – we are there for you.
Technical Director Civil Engineering
Thomas Amann
Äußere Münchener Straße 20
83026 Rosenheim
Tel. +49 (0)8031 4401-0
E-mail: thomas.amann@grossmann-bau.de
Civil Engineering Certificates
Our certificates in the field of civil engineering stand for competence, safety and reliability. They document that we carry out all work according to recognized standards and regulations – from planning to execution to quality assurance. In this way, we not only create a solid foundation for every structure, but also trust and security for our clients.







