1914
FOUNDATION OF THE AUGUST REINERS CONSTRUCTION COMPANY
The origins of the HEGEMANN GROUP date back to November 1, 1914, when August Reiners Bauunternehmung was founded. The company specializes in civil engineering work such as track, earthworks, sewer and concrete construction.
1954
DETLEF HEGEMANN JOINS THE COMPANY
Detlef Hegemann starts as a site manager at AUGUST REINERS and becomes the second partner of both companies in 1959 — alongside his uncle Bernhard Reiners.
1958
FOUNDATION OF DETLEF HEGEMANN GMBH
After participating in the major project to build the “Hütte am Meer”, a new steelworks in Bremen, Detlef Hegemann founds the company of the same name. The new company successfully takes on the task of processing steelworks slag after a previous company fails.
1974
CREATION OF THE HEGEMANN GROUP
From now on, Detlef Hegemann continues to develop the company’s fortunes under his sole responsibility. AUGUST REINERS Bauunternehmung GmbH and DETLEF HEGEMANN GmbH are now part of the newly formed HEGEMANN GROUP.
1983
SCHÄLERBAU BECOMES PART OF THE GROUP OF COMPANIES
The HEGEMANN GROUP takes over Schälerbau Berlin GmbH, which was founded by Hermann Schäler in 1880, and expands its range of services to include building construction, turnkey construction, bridge construction, civil engineering and building refurbishment.
In the young, imperial Germany, the imperial capital in particular was experiencing a strong construction and industrialization boom. The Berlin master builder Hermann Schäler recognized the signs of the times at that time and founded his “Specialist company for furnace and chimney construction”. He built steam boiler systems and the associated chimneys for the growing industry. The company flourished and soon the municipal works were among the company’s regular customers.
1911
Hermann Schäler dies. His wife and son sold his life’s work to the architect Erich Grundey. He expanded the company’s field of business by taking on larger industrial construction contracts and building complete commercial facilities. In the following years, SCHÄLERBAU increasingly gained the trust of large-scale industry. The continuous upswing was characterized by the construction of complete industrial plants and administrative buildings for large companies such as Knorr-Bremse AG, Allgemeine Electricitäts-Gesellschaft (AEG) and Mercedes Benz.
1923
Founding of Hermann Schäler AG für Holzverwertung, which, in addition to its own sawmill, also included a timber trade, a joinery and a woodworking factory.
The technical development in the construction industry and especially in the field of prefabrication progressed: SCHÄLERBAU became the world’s first licensee of the “all-concrete” construction method based on the bulkhead wall principle. This opened the door to turnkey construction and the urgently needed creation of new living space was now possible in a considerably shorter construction time.
1950s / 60s
Acquisition of a number of turnkey construction contracts, particularly in residential, hostel and hotel construction in Germany and abroad, with own technical departments and precast plants in “all-concrete” construction method. At the time, Schälerbau not only carried out consultations and construction contracts in other European countries, but also in Saudi Arabia and Kuwait, for example. As a traditional Berlin company, the company nevertheless remained true to its “very own” market. The focus here was on the classic fields of building construction and turnkey construction as well as refurbishment — from small detached houses to hotel, office, municipal and industrial buildings.
This was followed in the early 1960s by the development, manufacture and sale of a single-storey detached house made of prefabricated reinforced concrete elements, the so-called “Schäler-Bauherz house”. The core of this prefabricated house was a 10-ton, ready-to-use installation cell, consisting of a bathroom and toilet, kitchen wall with fitted kitchen, heating and hot water system and electrical control center — a once Swedish invention called “building heart”. SCHÄLERBAU Berlin was the first company in Germany to have its “Schäler-Bauherz-Haus” included in the prefabricated house directory of the Federal Ministry of Housing.
Development of the “Corpus” sanitary unit, a fully enclosed and turnkey bathroom/WC room cell.
1984
THE HEGEMANN GROUP TAKES OVER DEUTSCHE INDUSTRIE WERKE
Deutsche-Industrie-Werke GmbH, based in Berlin-Spandau and with a company history dating back to the early 18th century, becomes part of the HEGEMANN GROUP. This lays the foundation for today’s activities in the shipyard sector, with a focus on the construction, conversion and repair of inland waterway vessels.
1993
FOUNDATION OF AUGUST REINERS CONSTRUCTION COMPANY & DREDGING COMPANY
The establishment of August Reiners Bauunternehmung & Nassbaggerei lays the foundation for today’s Dredging. Its range of services includes dredging of all kinds — from maintenance dredging, beach nourishment and land reclamation to harbor projects.
2003
ALFRED KUNZ BECOMES PART OF THE HEGEMANN GROUP
In 2003, the HEGEMANN GROUP takes over the tunnel construction company Alfred Kunz Untertagebau GmbH, founded in 1882. The innovative company, which has been characterized by many pioneering developments and process technologies throughout its history, once again expands the Group’s service portfolio and makes it a major provider of complex infrastructure measures.
In the mid-19th century,
Rudolf and Heinrich Kunz were talented master builders and ran a well-known construction company that was able to land major contracts early on. Heinrich quickly disappeared from the scene.
1873
Rudolf Kunz dies, whereupon his son Alfred Kunz takes over his father’s business and initially continues it in Switzerland.
1882
Alfred Kunz founded his company of the same name in Germany, where he initially built a small hydropower plant. Over time, the company’s field of activity expanded more and more. Larger projects followed, including the construction of railroads, bridges, hydraulic and industrial buildings.
Early 20th century
The company increasingly focuses on foreign markets, including Italy, France and Turkey, and also expands its service portfolio to include tunnel construction, the main activity of ALFRED KUNZ today.
The name ALFRED KUNZ is closely associated with the history of construction through decisive developments in construction methods and equipment, such as the twin-shaft compulsory mixer, Kunz’sche Rüstung, or the mobile cable crane bridge.
in the realization of projects of all sizes.
2007
MERGER OF THE CONSTRUCTION COMPANIES
In 2007, the individual construction companies of the HEGEMANN GROUP merged to form AUGUST REINERS Bauunternehmung GmbH, based in Bremen, with the now registered branches SCHÄLERBAU Berlin, ALFRED KUNZ Untertagebau and AUGUST REINERS Wolgast. In addition to its current size, the construction company is particularly impressive due to its versatility. In the field of construction and project development, this gives the group of companies the opportunity to handle almost any construction project itself.
2022
THE GROUP REPOSITIONS ITSELF
In order to strengthen our competitiveness and make even better use of synergies, the Group will have a new external image. From now on, the HEGEMANN GROUP will become the HEGEMANN-REINERS GROUP. Our services will now be offered under two main brands, DETLEF HEGEMANN and AUGUST REINERS. We are thus moving away from the SCHÄLERBAU and ALFRED KUNZ brands and growing even closer together as AUGUST REINERS Bauunternehmung GmbH.
HEGEMANN-REINERS GROUP
Arberger Hafendamm 16 | 28309 Bremen
T +49 421 4107–0 | E info@hegemann-reiners.de