
Manufacture and installation of precast concrete elements, double-wall elements and floor slabs made to customer specifications
J. Mai & Co. GmbH
WülfrathNew on Amplifa
Who we are
J. Mai & Co. GmbH is a precast concrete plant based in Wülfrath, founded in 1979 in Wuppertal; the roots of the family business go back to 1898. The medium-sized company with around 30 employees is a specialist in the production and installation of precast concrete elements of all kinds. The product range comprises solid precast elements made of monolithic concrete with reinforcement and built-in parts fitted at the factory, double-wall and semi-precast elements with lattice girders, as well as precast floor slabs. Production is standardized to customer dimensions, with the precast elements meeting all statutory requirements and structural engineering regulations. Fields of application range from single-family homes to residential and commercial construction, industrial halls and swimming pools, through to car wash tunnels and self-service wash bays. Via its subsidiary J. Mai & Co. Massiv-Fertighausbau GmbH, turnkey car wash facilities are offered from a single source; delivery is carried out with the company's own vehicle fleet and installation takes place on the construction site.
- Site
- Wülfrath
- Processes
- Precast concrete elements (precast elements made of solid concrete, with factory-fitted, Double wall / semi-precast elements (single-layer concrete panels with lattice girders, combination, Precast floor slabs, Installation of precast concrete elements, Turnkey solid precast construction (car wash facilities, via subsidiary J. Mai & Co., Standardized precast elements made to customer specifications, Production and installation of precast concrete elements, Assembly to customer specifications
- Materials
- Concrete, Steel (Reinforcement), Double Wall / Semi-Precast Elements
- Founded
- 1979
- Employees
- 30
- Industries
- Residential construction, Commercial construction, Industrial halls, Car wash tunnels, Self-service wash bays, Single-family homes
- 01
Assembly to customer specifications
- 02
Factory-fitted reinforcement and built-in parts
- 03
Manufacture of the precast concrete elements
- 04
Delivery with the company's own vehicle fleet
- 05
Installation on the construction site
Materials & Processes
Concrete
Base material for solid precast elements, double-wall and semi-precast elements as well as precast floor slabs.
Steel (Reinforcement)
Fitted at the factory as structurally required reinforcement in the precast elements.
Double Wall / Semi-Precast Elements
Single-layer concrete panels with lattice girders for combining in-situ concrete and precast construction methods.
Location

Wülfrath
DEPrecast concrete plant / Headquarters
- Materials
- Concrete, reinforcing steel
Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Precast concrete elements (precast elements made of solid concrete, with factory-fittedJoining | – | – | – | – | Concrete, Reinforcing steel |
| Double wall / semi-precast elements (single-layer concrete panels with lattice girders, combinationJoining | – | – | – | – | Concrete |
| Precast floor slabsJoining | – | – | – | – | Concrete |
| Installation of precast concrete elementsAssembly | – | – | – | – | Concrete |
| Turnkey solid precast construction (car wash facilities, via subsidiary J. Mai & Co.Assembly | – | – | – | – | Concrete |
| Standardized precast elements made to customer specificationsJoining | – | – | – | – | Concrete |
Additional services
History
- 1898
The roots of the family business go back to 1898.
- 1979
Foundation of the company in Wuppertal.