Sujutek Oy

Renovation of district heating and water utility pipelines for water utilities, water cooperatives, industrial sites and property owners.

Sujutek specializes in the renovation of underground utility networks. We offer comprehensive trenchless solutions for water supply, wastewater, and district heating pipelines. Our focus is on modernizing essential infrastructure efficiently, safely, and with minimal disruption.

We work with municipalities, utility companies, industrial sites, and property owners, offering both full project execution and targeted services.

Why Choose Sujutek?

  • We build the best team for each project, combining in-house professionals with long-term subcontractor partners

  • We’re independent and solution-oriented: we choose the most suitable method for every site

  • We value local cooperation and often involve local businesses in supportive work tasks

Our Services

  • Tight-fit sliplining
    Tight-fit sliplining is suitable for water mains and pressure sewers when the pipe diameter must be maintained or increased. The result is a continuous pipe that can be tapped afterward. The work requires access at both ends of the rehabilitated pipe.

    Sliplining
    Sliplining is suitable for water mains and sloped or pressure sewers when the pipe diameter can be reduced. The result is a continuous pipe. The work requires access at both ends of the rehabilitated pipe.

    Deformed/reformed liner
    This method is suitable for water mains and pressure sewers when the pipe diameter cannot be significantly reduced. The result is a continuous pipe that should preferably not be tapped afterward. The work requires access at both ends of the rehabilitated pipe.

    Directional drilling
    Directional drilling can be used to replace an old water or pressure pipe or in new construction. The ground must be suitable for drilling. Random rocks and other obstacles can be bypassed since the drill is steerable. River crossings, for example, are possible. The result is a continuous pipe that can be tapped afterward. The work requires access at both ends of the installation section.

  • CIPP lining
    CIPP lining is suitable for sewers where the pipe diameter cannot be significantly reduced. A new pipe is installed inside the old one. The work is usually done through existing inspection chambers, so excavation is generally not needed.

    Tight-fit sliplining
    Tight-fit sliplining is suitable for water mains and pressure sewers when the pipe diameter must be maintained or increased. The result is a continuous pipe that can be tapped afterward. The work requires access at both ends of the rehabilitated pipe.

    Sliplining
    Sliplining is suitable for water mains and sloped or pressure sewers when the pipe diameter can be reduced. The result is a continuous pipe. The work requires access at both ends of the rehabilitated pipe.

    Segmented sliplining
    Segmented sliplining is suitable for sloped sewers when the pipe diameter can be reduced. The work is usually done through existing inspection chambers, so no excavation is needed.

    Deformed/reformed liner
    This method is suitable for water mains and pressure sewers when the pipe diameter cannot be significantly reduced. The result is a continuous pipe that should preferably not be tapped afterward. The work requires access at both ends of the rehabilitated pipe.

    Directional drilling
    Directional drilling can be used to replace an old water or pressure pipe or in new construction. The ground must be suitable for drilling. Random rocks and other obstacles can be bypassed since the drill is steerable. River crossings, for example, are possible. The result is a continuous pipe that can be tapped afterward. The work requires access at both ends of the installation section.

  • The carbon fiber liner is inserted into the damaged pipe, cured with steam, and the result is a seamless structure that adapts to the thermal expansion of the original pipe.