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simply experienced reliable innovative motivated


introduces itself

T. Semrau - Chef
Managing Director

Thomas Semrau

Motivated like on the first day.

It is now more than 13 years ago that I founded Wendel-Tec. Today, as on the first day, we as the Wendel-Tec team still pursue the goal of manufacturing and supplying our customers with high-quality spare parts for their industrial furnaces. It is the same with our services around your furnace. From the repair, restoration or modernization of your existing furnace to the new design of individual furnaces, we offer you our all-round service.

I am always looking forward to new challenges in which we can continue to grow and I am excited about our future projects and new contacts.

Highest product and service quality for our customers - That is Wendel-Tec!


M. Fehsenfeld

Since April 2023, I have been part of the team at WENDEL-TEC. As a trained office clerk, I take on various tasks such as creating offers, accepting orders, handling shipping, invoicing, and customer support.

My focus is on efficient organization and ensuring customer satisfaction. I take pride in being part of our dedicated team and look forward to contributing to the success of WENDEL-TEC.

T. Semrau Portrait
Production employee

T. Semrau

As a trained plant mechanic for sanitary, heating and air conditioning technology, I have been part of the Wendel-Tec team as a fitter since August 2016. My responsibilities include the custom manufacturing of heating coils, the preparation of repairs as well as the compilation and execution of orders for shipping.

A. Stuckert Portrait
Production employee

A. Stuckert

Looking back, I have now been working at Wendel-Tec since mid-2010. With these almost 12 years of experience as a production employee and trained locksmith, I always bring myself in a new way.

I have always found my enthusiasm in the production and manufacturing as well as in the repair and modernization of industrial furnaces. Thus, my tasks in these areas include work such as turning heating coils, relining entire furnaces, as well as repairs and a wide variety of locksmith and welding work.

I am always eager to take on new challenges and look forward to providing our customers with high-quality & long-lasting work results.

Wendel-Tec guiding principles

Passion and commitment – for our customers

Individual project requirements always present us with new challenges, which we tackle with enthusiasm and also take unusual paths to innovative customer solutions.


Employees – with hand, heart and mind

Our most valuable asset and the basis for our success are responsible, well-trained and committed employees. Each of them contributes to the continuous optimization of our services and processes.


Our values – dealing with responsibility

Our dealings with each other as well as with customers and suppliers are characterized by straightforwardness and honesty. We treat each other with respect and rely on respect and commitment.


We are there for you - when it burns because the furnace is off.

And before that, of course!

Wendel-Tec GmbH

Wörpedorfer Ring 3
28879 Grasberg


P +49 (0) 42 08) 89 55 44
F +49 (0) 42 08) 89 55 46