References

Organisations we have worked with

Since the day we were founded we have worked with a wide range of partners at home and abroad, from public institutions to the largest private engineering and contracting companies. From power transmission lines to natural gas and water networks, from fibre-optic infrastructure to sewer collectors, we have successfully completed countless projects of very different scale and difficulty.

We have been working with a significant part of our partners for more than 20 years. For us this is worth far more than a single list of references: being on the same site with a company for twenty years means winning the same job again on every project. We owe this continuity not to chance, but to keeping our word and standing behind the work we leave in the field.

Why do they call us again?

Trenchless crossing is a job whose result is only seen after the work is done; a mistake made underground can rarely be corrected. That is why what really matters to our partners is not price but predictability: the right choice of method, starting from the geotechnical survey; a realistic programme shared before going on site; and sticking to that programme.

We look at every project on its own terms. Two crossings of the same diameter may need two different methods if the ground and the water table differ; the wrong choice of method comes back as delay and cost overrun. So at the tender stage we explain not only what we will do, but why we chose that method.

To sit at the same table on a new project, contact us — our feasibility study and site survey are free of charge.

Which sectors do we work in?

• Natural gas and oil pipelines — horizontal directional drilling crossings under rivers, motorways and railways for BOTAŞ and international pipeline contractors.
• Water and wastewater — transmission mains, collectors and gravity-line crossings for İSKİ and municipal water utilities; guided pipe jacking and microtunnelling.
• Power transmission and distribution — trenchless installation of high- and medium-voltage cable ducts for TEİAŞ and distribution companies.
• Telecommunications — urban fibre-optic duct crossings for Ericsson, Siemens and fibre network operators.
• Railways and roads — HDD and auger boring crossings under TCDD lines and under roads and motorways where excavation permits are not granted.
• International projects — onshore/offshore pipeline landfall crossings on Saipem and Aramco projects.

For examples of our work see the gallery on the Services page; for the technical details of the methods we apply, see the Technology section.