Welcome to the ISW GmbH

Your contact for industrial boiler & plant construction


We are a modern and service-oriented company in the field of industry & trade. As a small company based in Uetersen near Hamburg, the working atmosphere and customer satisfaction are our top priorities. Founded in 1997 we can fall back on many years of experience.

Our wide range of services includes the manufacture of thermal oil boilers, tanks and pump control groups, as well as industrial steel, pipeline and plant construction. We are a certified specialist welding company and also have our own paint shop and blasting shop.


Training company

We train as plant mechanics in the field of pipe system technology.

Made in Germany

All products are manufactured in our workshop in Uetersen.

Private customers

With pleasure we are also available for private customers with all services, such as painting & blasting work.

Our services

Boiler construction
Steel construction
Surface treatment
Locksmithery & Bending
Installation & Maintenance