Tunnel Service Group GmBH

Your alternative in microtunneling full service

Tunnel Service Group GmbH is a full service provider for microtunneling systems with a focus on Herrenknecht AVN slurry systems. We offer everything for successful microtunneling from consulting and machinery components to complete your set over spare parts and field service to repair and high-quality refurbishment of spares and machinery. Together with our partners we can also offer jobsite crews, operators and all kinds of machinery from machines over control containers and jacking frames to separation and bentonite mixing stations.

Our engineering and software department furthermore develops and realizes new solutions for the microtunneling sector. In close cooperation with our customers we design also custom-made solutions in the fields of mechanical/hydraulic, electronic and software engineering.

The idea of Tunnel Service Group GmbH is to provide an affordable, high-quality market alternative for service of microtunneling equipment. An alternative for those who are looking for a fair prizing, a more personal customer care or a more flexible support.

We still offer service for S5 and KONTRON!

No need to write off your old control systems and computers because 'there is no more service for it'.

Save money and repair instead of replace! We keep a large stock of all necessary components and our software engineers and electricians still know the 'old school'. Let us take pride in bringing your old system back up to speed!


OUR FOCUS Areas at a glance

Control container components in refubishment
Service and refurbishment

We believe in second lifes. In tunneling high-value machinery meets extreme wear. But even run-down machinery is far too valuable for scrap. Be it tunnel boring machines, control containers, jacking frames, pumps - according to your wishes we realize everything from a simple repair to a full rebuild.

Tunnel Service Group GmbH staff after successfully supporting an AVN800 direct pipe drive
Field Service  

Be it a technical emergency on a jobsite or a scheduled maintenance on your yard - our experienced technicians stand by to assist you with any problem. Mechanics, electricians and engineers for worldwide support. Contact us also for site crews and operators.

Parts for Victaulic slurry circuit
Spare PartS  

Tunneling is based on reliable machinery. This is why we focus on quality when it is about spare parts. We work together with all known manufacturers. But right next comes prize for us. We have a large stock of affordable high-quality spare parts available from all over microtunneling.

Software and hardware solutions
data Solutions

More and more clients require data protocols or electronic access control systems. Sometimes also your own quality management is interested in real time data from your jobsite. We offer both simple alternatives to fulfill bidding regulations and innovative software solutions for a precise overview of what happens on site.

PLC greasing boxes
New Components

Looking for components or a new set of cables? We offer fully compatible machinery and components to complete your set. Steelworks, electronic or hydraulic equipment.

Not sure what you will need? We will not only make good prices for you what you need but also consult you on your best material options if desired.

office in Düren

Experience is our asset. You are new to the business or got an exceptional project? You are running into serious problems on site? Insecure about a particular decision only?

We support you in complex projects or difficult situations. With more than 20 years of practical experience in microtunneling.

AVN800B tunnel power pack
Custom-made solutions

Special tasks require special solutions. We adapt your machinery to your unique requirements. You need a special aggregate or a software solution? You want to alter an existing system? We will be happy to have a coffee and talk it through with you.



An der Garnbleiche 4 · D-52349 Düren · Germany


+ 49 (0) 24 21. 307 57-0