Questions & Answers

Would you like to become part of an innovative company with a long tradition?

Find out about current job openings and entry opportunities on our careers page:

www.otto-lehmann-gmbh.de/bewerbung.php#startpunkt

Or send us your application and questions directly by email to:

personal@otto-lehmann-gmbh.de

We look forward to hearing from motivated talent – whether for an apprenticeship, an entry-level position, or as an experienced professional!

The on-roof module mount from Otto Lehmann GmbH has been successfully manufactured since 2007.

Thanks to its reliability and ease of installation, it is used to install solar modules with a total output of around 500 megawatts (MW) annually – a significant contribution to the energy transition.

Lehmann currently employs approximately 350 employees across its locations – a strong team that makes quality and innovation "Made in Germany" possible every day.

Otto Lehmann GmbH products are compatible with over 90 different models of clay and concrete roof tiles – in six different colour variants.

A complete overview of all models can be found here:

Model overview (PDF)

Lehmann plans to place increasing emphasis on digital channels, social media, and personalised customer service in the future. The goal is to further improve communication with our customers and respond to their needs with even greater precision.

Through these measures, we aim to be even closer to our customers and offer tailored solutions.

Yes – Lehmann is consistently committed to sustainable production. A key example is that Lehmann operates one of the most modern hot-dip galvanizing plants in Europe, which annually:

• saves around 1,900 tonnes of CO₂,
• reduces electricity consumption by 76%,
• and reduces natural gas consumption by 60%.
• This investment is part of a comprehensive environmental strategy focused on energy efficiency, resource conservation, and future-oriented technology.

The company invests in further training, innovative working models, and an open corporate culture to best prepare employees for future challenges.

Lehmann is an innovative company with a long tradition. Since 1851, the name has stood for the highest quality in metalworking – Made in Germany.

Thanks to its successful ISO 50001 certification, the company is committed to improving its energy efficiency year on year. In addition, the topics of recycling and the use of sustainable materials are given high priority within the company.

Lehmann produces high-quality system solutions for roofs. The product portfolio includes:

• Drainage systems
• Snow retention systems
• Safety roof hooks and roof access solutions
• On-roof module mounts for solar systems

All products represent the highest quality workmanship, durability, and ease of installation – developed for professionals, manufactured in Germany.

Lehmann stands for:

• Quality "Made in Germany" – precision and reliability rooted in tradition
• Innovation – progress through technical expertise and continuous development
• Sustainability – responsible stewardship of the environment and resources
• Customer satisfaction – tailored solutions and partnership-based collaboration

These values shape our thinking, our actions, and our products – day after day.

Otto Lehmann GmbH includes the following subsidiaries:

• Heller Metall GmbH – specialising in snow retention systems
• Lehmann Galvanizing GmbH – formerly SWR-Metallbearbeitung GmbH, specialising in hot-dip galvanizing and metalworking

These companies complement the portfolio of Otto Lehmann GmbH and offer specialised solutions in various areas of metalworking.

Lehmann supplies not only the German-speaking market, but also the wider European region as well as the USA and Australia.

Our products are therefore used internationally – with the highest quality "Made in Germany".

Hot-dip galvanizing primarily serves to significantly extend the lifespan and structural integrity of products. The zinc coating forms a resilient, long-lasting protective layer that reliably protects the metal against corrosion and rust.

In addition, the zinc surface gives products an attractive appearance, combining functionality and aesthetics in one.

The on-roof module mount from Otto Lehmann GmbH is a tried-and-tested, practice-oriented system component that enables the easy replacement of existing roof tiles – typically without any modification to the tiles (exceptions apply in special cases).

This means:

• Time-saving installation
• Minimal intervention in the roof structure
• High precision fit and reliability

Ideal for the fast, secure, and permanent attachment of solar modules.