Kontact

Apprenticeship as a plant mechanic 

for sanitary, heating and air conditioning technology (m/f/d)

Information about the apprenticeship
Apply online here

Why you are right with us

Apply to us and work in our TGA company as a plant mechanic for sanitary, heating and air conditioning technology in order to receive challenging training in a future-oriented area with exciting tasks and a wide range of development opportunities.

When does it start?
  • August 01, 2025
What to do?
  • Servicing, cleaning and repairing supply systems
  • Install hydraulic components (pipes, valves, fittings, etc.).
  • Install and parameterize energy systems (heating and cooling).
  • Mount and connect sanitary facilities
  • Understand holistic plant engineering
  • Planning and preparing work processes
  • Prepare pipe laying
What do we expect from you?
  • Craftsmanship and eye-hand coordination
  • Technical understanding and enthusiasm
  • Good high school diploma or better
  • Careful operation
  • Teamwork
What do we offer you?
  • Interesting and diverse large-scale projects (office complexes, hotels, stadiums, etc.)
  • Good chances of being hired after training
  • External training courses
  • Excellent training opportunities
  • Good professional support
 Apply online now!

Our external HR department PERSONAL CHECK is at your disposal to clarify initial questions Mrs. Nieke Arendt under +0172 - 624 7888 to disposal. We will check your documents and get back to you within a week for an initial interview (online). If everything goes well, you will then have an on-site interview with the management within 8-10 days.

#Future

Join the Wilhelm Theis GmbH team in 4 steps

01

Application

We have successfully received your application. You will receive a confirmation of receipt within 24 hours

 Casting Online Form

02

Video Interview

We look forward to getting to know you in a first video interview. We are supported in this by our external HR specialist Nieke Arendt PERSONAL CHECK.

03

on-site call

In the next step, we will invite you to our company for an introductory meeting. You have the opportunity to get to know us better as a company and team and gain insights into our everyday work.

04

Setting

Welcome to the Wilhelm Theis GmbH team. Your colleagues will introduce you to the world of technical building equipment and customers from day one. We attach great importance to ensuring that you feel really comfortable from your first day working with us.

Frequently asked questions and answers - FAQ

How do I apply to Wilhelm Theis GmbH? 

Various options are available to you here. The easiest is the application process on our website. You are also welcome to email us your application documents bewerbung@theis-gmbh.de send or via the old-fashioned postal route. 

Which documents should my application contain? 

We would like to know what drives you and whether you fit in with us. You are welcome to communicate this in a short email or in a short cover letter. Furthermore, we are of course interested in your previous career and any practical experience you may have and look forward to receiving your CV. On top of that, you are welcome to attach your most recent certificate to your documents. 

How does the application process work? 

We start the application process in the autumn of the year before the apprenticeship begins. Send us your application and we will get in touch with you by phone or email within a few days.


We conduct an initial introductory meeting online as a video interview. If it suits both sides, the next step is a personal meeting on site. 


We also offer taster and practice days. During the practical days, you will get to know the company, everyday work and the team better, and you can see whether we are a perfect match for you. 

By when do I have to apply for an apprenticeship? 

As a rule, we publish our apprenticeship positions a year before the start of the apprenticeship, so that you can apply directly.

The training begins as follows:

Beginning August 01st

  • Apprenticeship as a clerk for office management (m/f/d)
  • Apprenticeship as a technical system planner TGA, heating and sanitary (m/f/x)
  • Apprenticeship as plant mechanic SHK (m/f/d)

What training is offered?

What training locations are there? 

Apprenticeship as a clerk for office management (m/f/d)

  • Practice: Company location Bad Marienberg
  • Theory: Westerburg Vocational School and Koblenz Chamber of Crafts

Apprenticeship as a technical system planner TGA, heating and sanitary (m/f/x)

  • Practice: Company location Bad Marienberg
  • Theory: Westerburg Vocational School and Koblenz Chamber of Crafts

Apprenticeship plant mechanic SHL (m/f/d)

  • Practice: Company location Bad Marienberg and large construction sites
  • Theory: Westerburg Vocational School and Koblenz Chamber of Crafts

How long does the education last?

Training period 3 years

  • Apprenticeship as a clerk for office management (m/f/d)

Training period 3,5 years

  • Apprenticeship as a technical system planner TGA, heating and sanitary (m/f/x)
  • Apprenticeship as plant mechanic SHK (m/f/d)

How is the remuneration in the individual apprenticeship years?

Apprenticeship as a clerk for office management (m/f/d)

Apprenticeship as a technical system planner TGA, heating and sanitary (m/f/x)

Apprenticeship as plant mechanic SHK (m/f/d)

  • 1st year 655,00 EURO
  • 2nd year: EUR 705,00
  • 3nd year: EUR 850,00
  • 1st year 655,00 EURO
  • 2nd year: EUR 705,00
  • 3nd year: EUR 850,00
  • 4nd year: EUR 905,00
  • 1st year 655,00 EURO
  • 2nd year: EUR 705,00
  • 3nd year: EUR 850,00
  • 4nd year: EUR 905,00

What are the chances of being hired after completing your training? 

We not only train, we also teach our specialists (m/f/d) of tomorrow.
And it is important to be able to use them optimally in the company even after the training.

Do I need a specific school-leaving certificate? 

A secondary school leaving certificate is required for the training occupations.

What is the supervision like during my training? 

We have trained trainers for each area who will look after you throughout your training. In addition, there are permanent contact persons in the departments who support you.

Will I be supported with special services during the training? 

  • All our employees benefit from many special services, such as the subsidy for private supplementary health insurance, the possibility of e-bike leasing, on-site support from a physiotherapist and much more.
  • We provide our industrial employees and trainees with high-quality work clothing.
  • As an employer, we also cover course fees and the costs of textbooks.

What further training opportunities do we offer you? 

Of course, you can continue your education after your apprenticeship and continue to grow in our company. There are many different options depending on your profession, including:

  • Financial accountant (m/f/d)
  • Accountant (m/f/d)
  • Master (m/f/d)
  • Technician (m/f/d)
  • Bachelor / Master / PhD student (m/f/d)
  • Business economist (m/f/d)

How many apprenticeship positions are advertised each year? 

Since we train needs-based, our offers vary. You can view the current vacancies on our website at any time.

Do you have any other questions that you haven't found an answer to?

We would be happy to answer any further questions you may have about training with us. Feel free to send us an email bewerbung@theis-gmbh.de or call our HR manager, Ms. Nieke Arndt: +0172 - 624 7888

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