Working for you for 40 years. A good reason to celebrate.

In order to be able to offer our customers holistic, efficient, and energy-saving solutions from the very beginning, we provide you with comprehensive support and information via our specialists, starting in the planning phase. This way we can ensure an innately proactive, sustainable, and intelligent realization of your projects.

Company History

Company History


We’ve been taking care of it for 40 years.

We are celebrating our 40th company anniversary and rewarding ourselves with a redesign of our corporate identity and a new internet presence.

What a performance.

LOHR has been successfully active on the market for 39 years. A large number of prestigious projects have been concluded in the past few years and handed over to our customers.

Marke Eigenbau.

Entwicklung und Zertifizierung innovativer Lösung zur Brandfallsteuerung. Im Detail Steuerzentralen für Brandschutzklappen, Druckbelüftungs- und Brandrauchverdünnungsanlagen.

Die Rettung naht.

Das Einsatz-Managementsystem EMA wird erfolgreich, hausintern für Blaulichtorganisationen entwickelt und kommt bei der Wiener Rettung MA70 zum Einsatz.

Let the sun shine.

We vigorously pursue the development of the renewable energy division and erect our first photovoltaic systems.

A new beginning.

At the beginning of June, after only 4 months of construction, we relocate to our new building in the 23rd district with 2,700 m² of office and warehouse facilities.

Time for a new home.

Due to the continuous positive developments of the company, the consolidation of our 5 operating facilities and move to a new, modern building has become necessary.

What a great honor.

Our CEO, Günter Slabihoud, is named Kommerzialrat (councilor of commerce) by the City of Vienna.

According to standards.

LOHR is henceforth a certified company according to the DIN EN ISO 9001:2000 quality management principles.

Raise your glasses.

We celebrate our 25th company anniversary with 550 invited guests and look back on the continuously positive development of our company.

Constant growth.

The major Gasometer and Entertainmentcenter projects are handed over at the same time as 12 telecommunication booster stations in Austria and Germany. Total order volume of approx. 30 million Austrian Shilling.

Es geht voran.

2 major MSR projects with an order volume of over 30 million Austrian Shilling are successfully completed.

New structures.

Hans Lohr leaves the company and Günter Slabihoud takes over 100% of the company shares. By now we employ 100 people and our revenue is over 100 million Austrian Schilling.

LOHR übernehmen Sie.

We take over the Hönisch electrical company and the support of Siemens Landis & Staefa Division’s well-known clients in the area of security following their integration into Siemens AG.

Failure free.

We are commissioned by the municipal department 32 to construct a fault monitoring system to monitor and remotely control the heating systems and building service equipment for over 200 public properties.

Healthy growth.

As a contractor, we take care of numerous properties belonging to the City of Vienna as well as the Viennese Hospital Association. By now we employ 51 people and our revenue grows to 50 million Austrian Schilling.

Time for change.

Hans Lohr leaves the operational business. In his place, Günter Slabihoud takes over the electrical engineering and security technology divisions as well.

New technologies.

Der EDV-Boom beginnt sich abzuzeichnen. Die Abteilung für Nachrichtentechnik mit dem Schwerpunkt Netzwerktechnik wird gegründet.

VIE is counting on us.

As an official system integrator for the standard Landis & Staefa products, we now also serve the municipal authorities of the City of Vienna. The number of employees grows to 34.

Worthwhile investments.

Our first CAD workstation is installed at a value of 180,000 Austrian Schilling.

The world of work is changing.

Der erste XT-Personalcomputer inklusive EDV-Branchenpaket wird angeschafft. In Kooperation mit dem Softwarehaus Edlinger wird die Branchensoftware ARINS entwickelt, welche später um die Module Kalkulation, Auftragsbearbeitung und Statistik erweitert wird. LOHR war damit eines der innovativsten Unternehmen am Markt.

Keeping with the times.

The communication age has begun. A telex device is purchased for the transmission of construction reports, followed several months later by the first fax machine G1.

Successful growth.

Wir expandieren in den branchennahen Bereichen der Heizung-Lüftung und Klimasteuerungen. Es folgen zahlreiche, erfolgreiche Projekte als Subunternehmer für Landis & Gyr. Der erste MSR Verteiler wird geplant und gebaut. Der Bereich Schaltanlagenbau entsteht. Die Anzahl unserer Mitarbeiter wächst auf 19.

Things go uphill quickly.

We receive the first of many contracts from the City of Vienna. The development of the control and regulation technology division begins.

Safety first.

Lohr errichtet die erste Alarmanlage in Eigenregie. Der Grundstein des Bereichs Sicherheitstechnik ist gelegt.

Heading for new shores.

Relocation of the company headquarters and warehouse facilities to the 15th district on Markgraf Rüdigerstraße 24. We already employ 3 people.

The adventure begins.

Hans Lohr and Günter Slabihoud found Hans Lohr Ges.mbH located at Kaiserstraße 79 and a small warehouse with a desk in it on Grenzgasse. The men and their first employee carry out electrical installations and fault corrections, mainly in the private sector.

Employees & Careers

The contentment and motivation of our employees are of the greatest importance to us. Thanks to our company’s steady growth, we are not only continually creating new jobs, but also offer attractive promotion opportunities, trainings, and exceptional social benefits to our entire team.

We hit the road for you.

Our LOHR service fleet is available to you day and night in the greater Vienna area. That’s how we can guarantee quick and professional malfunction repair at any time of day.

Our certificates

Contact us.

Do you have a question about our products or services? Our team is always happy to help ease your concerns.

Contact us