Alois Müller

Tradition meets innovation

Since 1973, we have successfully grown from a traditional family business to a medium-sized, owner-operated company with now more than 800 employees and 14 branches.

Our experience, the intelligent use of state-of-the-art technology and the high level of qualification of our team make us your competent partner when it comes to energy and building services engineering (heating, ventilation, plumbing, refrigeration, electrical) as well as industrial plant engineering.

Always one step ahead. We are already gearing up for tomorrow in all areas today.

With our holistic, sustainable approach to work, we face the ecological and technical challenges of the present and the future.

Only those who use technologies intelligently and accept these challenges will remain competitive in the future. To achieve this, the required energy input must be optimized through the targeted use of technical possibilities, thus conserving resources.

In addition to our website, we would also like to draw your attention to our company brochure and our production brochure. We are especially pleased about the award “Bavarian Energy Award“.


Strong past – bright future. We have had energy in focus since 1973. A brief overview of the Alois Müller Group’s milestones of recent years. We hope you enjoy reading.


The challenges of our present and future. Increasing energy costs, technological developments, climate change and more stringent environmental regulations.


We have locations in Germany in Memmingen, Ungerhausen, Kempten, Burkersdorf, Döbeln, Erfurt, Buch (Swabia), Pforzen, Friedrichshafen, Ottobeuren, Stuttgart and Munich.


Signed, sealed, delivered

The highest quality is our standard – and we have this on paper!
We are TÜV-certified and comply with quality requirements for welding technology. In addition, we have all welding technology prerequisites in place for manufacturing pressure vessels.
Our quality assurance and the professional expertise of our employees are also TÜV certified. Each and every one of our employees can be proud of this!

A selection of our corporate qualifications:

  • German Pressure Vessel Directive (DGRL) Module A1. Through the TÜV
  • AD 2000-HP 0, HP 100 R TRD 201 and Din En ISO 3834-2
  • WHG certificate
  • AD-W0 TRD 100
  • German Energy Efficiency Association for Heating, Cooling and CHP (AGFW) certificate


Leaping into the future with us

We have grown from a traditional family business into an innovative and medium-sized company with ten locations. We face the challenges of the present and future by taking a holistic and sustainable approach to our work.


Want to be a part of our team?
We look forward to your application!

Employee qualification

Training at the Alois Müller Group:

Our well-founded vocational training policy is our future-oriented approach to ensuring a highly skilled future staff. We provide solid training in the heating, plumbing and air conditioning area at our in-house training workshop in Ungerhausen, close to Memmingen, Germany. Most of the graduates are then hired for a permanent position.

Get an idea of the opportunities awaiting you at the Alois Müller Group.Our training brochure introduces our vocational training programs and dual courses of study.

Energy Academy

We place great value on the continuous training and professional development of our employees, whether in the business or commercial area. Our in-house Energy Academy, founded in 2009, offers exactly the right platform for this. Shortage of skilled workers? Our answer: creating development opportunities!
With this aspiration, we create space and opportunity for every single employee. From training to a leading position within a few years. At our company, effort and dedication pay off.

Ausbildung bei Alois Müller