
Family business for gravel, sand, ready-mixed concrete as well as demolition, earthworks and transport services in the Freising region

Hofmair Kies Kieswerk Beton GmbH & Co. KG
Untermarchenbach (near Zolling) · Haag an der AmperNew on Amplifa
This is Hofmair
Hofmair Kies is a family business that has existed for over 45 years, headquartered in Untermarchenbach near Zolling in the district of Freising. From a small excavator operation, the company developed into a gravel and concrete plant that produces and delivers gravel and sand as well as ready-mixed concrete. The range of services also includes landfill and backfilling work, demolition and earthworks of all kinds, transport services and recycled construction materials. Customers are companies from the construction industry in the Freising district and beyond; small-volume buyers and private individuals are also supplied. In 2024, a new concrete mixing plant was built at the Zolling site. In February 2024, the Untermarchenbach plant received certification according to the standard of the Concrete Sustainability Council (CSC).
- Site
- Untermarchenbach (near Zolling), district of Freising
- Processes
- Gravel and sand production, Ready-mixed concrete, Landfill and backfilling, Transport / transport services, Demolition work, Earthworks, Recycled construction materials, Gravel and sand
- Materials
- Gravel, Sand, Ready-mixed concrete, Recycled construction materials
- Certificates
- CSC (Concrete Sustainability Council) certification, CSC (Concrete Sustainability Council)
- Industries
- Construction industry
- 01
Gravel and sand extraction
- 02
Processing at the gravel plant
- 03
Ready-mixed concrete production at the concrete plant
- 04
Transport and delivery
- 05
Landfill, backfilling, demolition and earthworks
- 06
Recycling of construction materials
Products and Construction Materials
Gravel
Natural construction material from our own extraction for the construction industry in the region.
Sand
Construction material produced in addition to gravel for companies and private individuals.
Ready-mixed concrete
Concrete produced at the concrete plant and delivered by transport for construction projects.
Recycled construction materials
Processed construction materials from recycling for use in construction.
Our Locations

Untermarchenbach (near Zolling)
DEGravel and concrete plant / headquarters
- Materials
- Gravel, sand, ready-mixed concrete
- Gravel plant
- Concrete plant
Zolling
DEConcrete mixing plant (new build 2024)
- Materials
- Ready-mixed concrete
- Concrete mixing plant

Haag an der Amper
DESite (district road 39)
- Excavator operation
Service Areas
Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gravel and sand productionConstruction materials | – | – | – | – | Gravel, Sand |
| Ready-mixed concreteConstruction materials | – | – | – | – | Concrete |
| Landfill and backfillingOther | – | – | – | – | – |
| Transport / transport servicesOther | – | – | – | – | – |
| Demolition workOther | – | – | – | – | – |
| EarthworksOther | – | – | – | – | – |
| Recycled construction materialsConstruction materials | – | – | – | – | Recycled construction materials |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Gravel plant | – | – | – | – | Untermarchenbach (district of Freising) |
| Concrete plant | – | – | – | – | Untermarchenbach (district of Freising) |
| Concrete mixing plant | – | – | – | 2024 | Zolling |
| Excavator operation (excavators) | – | – | – | – | – |
Additional services
Quality and Sustainability
The Untermarchenbach gravel and concrete plant is certified according to the standard of the Concrete Sustainability Council (CSC). According to the company, it produces gravel, sand and ready-mixed concrete of the best quality.
| Evidence | Untermarchenbach |
|---|---|
| CSC (Concrete Sustainability Council) |
Company History
- ca. 1979
Began as a small excavator operation; today a family business in existence for over 45 years
- 2024-02
CSC certification of the Untermarchenbach gravel and concrete plant
- 2024
Construction of a new concrete mixing plant in Zolling; the foundation slab of the office building was completed in October 2024