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Use our handy selection tool and easily find the best pipe plug for the job.

We are always looking to find the best solution for the job. Should it be faster, bigger or custom? Please do not hesitate to contact us.

The team

No-nonsense partner for sewerage technology. In the field of safe products, but also for the right advice. That is what Janssen Riotech wants to be for you. Now and in the future.

Our experienced team excels in personal communication: direct, fast, and expert. We think along with you in a flexible way and work together with you to find a suitable solution. In addition to standard questions or products, we also help when things have to be done slightly differently: faster, larger, or customized. Nothing is too crazy for us.

We are Janssen Riotech and would like to introduce ourselves!

John Custers
John Custers
General Manager

"Technical issues are a challenge for me - I would be happy to advise you!"

+32 477 513 741
j.custers@riotech.nl
Martine de Weert
Manager Sales & Marketing

"I go for safe and sustainable sewage works!"

+31 6 209 733 75
m.deweert@riotech.nl
Maarten Middelbosch
Maarten Middelbosch
Location manager Zoetermeer

Your question, my advice where safety is key!
The best solution together

+31 85 07 12 629 /+31 6 22 66 34 69
m.middelbosch@riotech.nl
Stéphane Gaudière
Stéphane Gaudière
Responsable for France

Besoin de renseignements, d’un accompagnement technique ou sur chantier ? Appelez-moi !

+33 (0) 78 90 23 979
s.gaudiere@riotech.fr
Filip Willemsen
Filip Willemsen
Advisor Sales/Rentals

"For comprehensive advice on sewer valves and more, you've come to the right place!"

+32 476 837 859
f.willemsen@riotech.be
Monique Bouchoms
Sales/Marketing

"You can call me for all your sales and marketing questions."

+31 85 04 97 890/ +31 6 51 07 11 52
m.bouchoms@riotech.nl
Jordy Reeuwijk
Advisor/Planner

"Just like our pipe plugs, I'm also broadly deployable."

+31 85 07 12 622
j.reeuwijk@riotech.nl
Isabelle Stil
Front office/Administrative assistant

"I would be happy to help you with all your (financial) questions."

+31 85 04 97 890
i.stil@riotech.nl
Serge Straet
Technical Service/Warehouse

"With almost 30 years of experience at Janssen Riotech, I have a solution for everything."

+31 85 04 97 890
s.straet@riotech.nl
Fred Brandhorst
Driver/Warehouse

"I am happy to be on the road for you in the Netherlands and make sure in Zoetermeer that all plugs are in order again!"
Ronny Dortu
Driver

"As Janssen Riotech's visiting card, I take the plugs to its destination and can also give explanations."
Henri Duijckers
Driver

"I have worked at Janssen Riotech for many years and I still like to be used flexibly!"
Henk van Grootheest
Accounting

"As an accountant, I deal with everything in the background except the sewer valves."

+31 85 07 12 627
crediteur@riotech.nl/ h.vangrootheest@riotech.nl