Specialist welding
Specialists in demanding welding work.
Specialist welding, brazing and pipe bending for industry and plant engineering.
- Response within 24 hours
- Working worldwide
- A welder can be on site in Europe in 3 to 4 days
- Experience since 2006
Certificates and documentation on request.
Services
Welding and pipe fabrication for industry.
Specialist welding, brazing and pipe bending for industry and plant engineering. Each service has its own page and data sheet.
- Stainless steel and TIGStainless steel pipework, components and structures. To drawings, samples or on site.
- MIG/MAGLarge machine components, multi-pass welds, repairs and weld surfacing.
- Heat exchanger brazingBrazing copper to steel and stainless steel. Repairs, refurbishment, modifications.
- Carbon steel and district heatingSteel and district heating pipework, including out-of-position welding.
- Large projects and industrial pipeworkInstallation, modifications and extensions in industrial plants. Project work worldwide.
- Pipe bendingOne-off parts or small batches. To drawings or samples.
Services
Welding and pipe fabrication for industry.
Specialist welding, brazing and pipe bending for industry and plant engineering. Each service has its own page and data sheet.
Stainless steel and TIGStainless steel pipework, components and structures. To drawings, samples or on site.Learn more 
MIG/MAGLarge machine components, multi-pass welds, repairs and weld surfacing.Learn more 
Heat exchanger brazingBrazing copper to steel and stainless steel. Repairs, refurbishment, modifications.Learn more 
Carbon steel and district heatingSteel and district heating pipework, including out-of-position welding.Learn more 
Large projects and industrial pipeworkInstallation, modifications and extensions in industrial plants. Project work worldwide.Learn more 
Pipe bendingOne-off parts or small batches. To drawings or samples.Learn more
How an assignment works
Four steps from enquiry to handover.
- 01
Enquiry
Complete the form with the plant or component type, material and urgency. Attach a photo or drawing if possible.
- 02
Response within 24 hours
Musab Köksal will provide a non-binding response within 24 hours by phone or email.
- 03
A welder can be on site in Europe in 3 to 4 days
We work worldwide. A welder can be on site in Europe in 3 to 4 days. We agree the specific date with you.
- 04
Welding and documentation
On-site assessment, welding and NDT where required. We agree in advance which documentation you will receive.
Our aim: we keep working until the job is done and your plant is running again.
Send a free enquiry
How an assignment works
Four steps from enquiry to handover.
From your first message to handover, you know which step comes next.
- 01
Enquiry
Complete the form with the plant or component type, material and urgency. Attach a photo or drawing if possible.
- 02
Response within 24 hours
Musab Köksal will provide a non-binding response within 24 hours by phone or email.
- 03
A welder can be on site in Europe in 3 to 4 days
We work worldwide. A welder can be on site in Europe in 3 to 4 days. We agree the specific date with you.
- 04
Welding and documentation
On-site assessment, welding and NDT where required. We agree in advance which documentation you will receive.
Sites where we have worked
We have worked in plants operated by these companies, mainly on behalf of general contractors:
- Stahlwerk Unna
- Siemens Energy
- Mercedes-Benz
- Refineries
- Nuclear power plants in France
The companies named operated the plants where we worked. Naming them does not imply their endorsement.
Capabilities
Six capabilities. Clearly defined.
Services, positions and typical applications at a glance. We discuss the details with you for the specific component.
TIG
TIG welding on stainless steel.
FabricationTo drawings, samples or directly on site
MIG/MAG
Large components, pass by pass.
WeldsMulti-pass, including large machines
Brazing
Copper joined to steel and stainless steel.
ObjectiveClean, strong joints that remain leak-tight
Carbon steel
Steel pipework and district heating.
PositionsPA to PG (ISO 6947)
Data sheet
- Applications
- District heating pipework, welds intended for radiographic testing
Large projects
Pipe fabrication and installation in industrial plants.
ServicePipe fabrication, metalwork and installation
Data sheet
- Coverage
- Project work worldwide
- On-site mobilisation
- Possible in Europe within 3 to 4 days
- Applications
- Modifications and extensions to existing plants
Stainless steel
Stainless steel to drawings or samples.
FabricationFrom one-off parts to assemblies
Where others say no
- Out-of-position welding
- Positions PA to PG (ISO 6947)
- Welds for radiographic testing
- Welded for radiographic testing, RT on request
- NDT
- Visual inspection, PT, MT. UT and RT on request.
Our work
From workshop and plant.
Ready to help
When it matters, we keep working.
We assess the situation on site, find a practical solution and put it into action.
“Our aim: we keep working until the job is done and your plant is running again.”
- ResponseNon-binding, within 24 hours
- CoverageWorldwide. A welder can be on site in Europe in 3 to 4 days
- Opening hoursMonday to Sunday, 06:00 to 19:00 German time (CET/CEST)
- Our workshopsHerne and Rheinberg. Prefabrication, custom work and repairs in our own workshops help minimise downtime at your plant. Short distances across the Ruhr and Lower Rhine regions.
Frequently asked questions
Brief answers.
How quickly will I receive a response?
You will receive a non-binding response within 24 hours by phone or email.
How soon can a welder be on site?
A welder can be on site in Europe in 3 to 4 days. We agree the specific date with you.
Where does Herdi GmbH work?
Worldwide. Our base is Herne in the Ruhr region, with our own workshops in Herne and Rheinberg in the Lower Rhine region. We undertake projects worldwide. A welder can be on site in Europe in 3 to 4 days.
Which welding positions do you cover?
Positions PA to PG (ISO 6947). As well as the flat position, these include out-of-position welding such as overhead, vertical up and vertical down.
What should I do in an emergency?
First describe the situation using the form or by email, ideally with photos. Then call us, so we already have the key information.
When can I contact you?
Our opening hours are Monday to Sunday, 06:00 to 19:00 German time (CET/CEST). You can write to us using the form at any time, and we will respond within 24 hours.
How much experience do you have?
Our experience in mobile welding for industry and plant engineering dates back to 2006.
Enquiry
Tell us about the problem. Response within 24 hours.
Plant or component type, material, urgency. Attach a photo or drawing. You will receive a non-binding response within 24 hours.