OUR SERVICE
What we do
Water Installations
Modern press systems for safe and long-lasting pipe connections. Fast installation, minimal maintenance, and maximum reliability.
Read More
Heating Systems
Efficient heating solutions including underfloor and radiator systems. Designed for energy savings and long-term performance.
Read More
Ventilation Systems
Professional ventilation systems for clean air and optimal indoor conditions. Reliable, efficient, and easy to maintain.
Read More
Metal Structures
We specialize in the fabrication and installation of custom metal structures tailored to various purposes.
Read More
Metal Fence Fabrication
We specialize in the fabrication and installation of welded metal fences that combine security, functionality, and modern design.
Read More
Modern and Reliable Technology
Press Pipe Systems
We use advanced press pipe systems that represent one of the most efficient and reliable solutions for water, heating, and ventilation installations.
This technology enables strong, secure, and long-lasting connections without welding or open flame, reducing risks and ensuring a clean working process.
Press systems are the standard in modern construction projects across Europe due to their speed, safety, and durability.
- Email
info@niss-hsl.si - Address
Aškerčeva ulica 15, 3000 Celje, Slovenia
Why People Choose Us?
Countries Active
Projects Completed
Reliable Execution
Experience
Proven experience on international projects across Europe, delivering consistent and reliable results.
Quality
We use certified systems and high-quality materials to ensure durability, safety, and long-term performance.
Reliability
We respect deadlines, agreements, and project standards – building trust with every client.
Featured project
The great work we did
Avenger Tower
Construction, Invest,
Avenger Tower
Construction, Invest,
Etiam ultricies nisi vel augue. Curabitur ullamcorper ultricies nisi. Nam eget dui. Etiam rhoncus. Maecenas tempus, tellus eget condimentum rhoncus, sem quam semper libero, sit amet adipiscing sem neque...
View DetailIndustries Project
Energy,
Industries Project
Energy,
Etiam ultricies nisi vel augue. Curabitur ullamcorper ultricies nisi. Nam eget dui. Etiam rhoncus. Maecenas tempus, tellus eget condimentum rhoncus, sem quam semper libero, sit amet adipiscing sem neque...
View Detail
The Pentagon
Energy,
The Pentagon
Energy,
Etiam ultricies nisi vel augue. Curabitur ullamcorper ultricies nisi. Nam eget dui. Etiam rhoncus. Maecenas tempus, tellus eget condimentum rhoncus, sem quam semper libero, sit amet adipiscing sem neque...
View DetailClean Energy
Invest, Mechanical,
Clean Energy
Invest, Mechanical,
Etiam ultricies nisi vel augue. Curabitur ullamcorper ultricies nisi. Nam eget dui. Etiam rhoncus. Maecenas tempus, tellus eget condimentum rhoncus, sem quam semper libero, sit amet adipiscing sem neque...
View DetailLuxury Building
Design Build, Energy,
Luxury Building
Design Build, Energy,
Etiam ultricies nisi vel augue. Curabitur ullamcorper ultricies nisi. Nam eget dui. Etiam rhoncus. Maecenas tempus, tellus eget condimentum rhoncus, sem quam semper libero, sit amet adipiscing sem neque...
View DetailOcean Company
Achitecture, Construction,
Ocean Company
Achitecture, Construction,
Etiam ultricies nisi vel augue. Curabitur ullamcorper ultricies nisi. Nam eget dui. Etiam rhoncus. Maecenas tempus, tellus eget condimentum rhoncus, sem quam semper libero, sit amet adipiscing sem neque...
View DetailContact us
+49 1575 4886041
What Our Customers Have To Say
Harry KaneArchitectural Co.
"I am alone, and feel the charm of existence in this spot, which was created for the bliss of souls like mine."
Lucas SilvaArchitectural Co.
"I am alone, and feel the charm of existence in this spot, which was created for the bliss of souls like mine. Which was created for the bliss of souls like mine"
Arean LinaArchitectural Co.
"I am alone, and feel the charm of existence in this spot, which was created for the bliss of souls like mine."
OUR NEWS
Latest News from us
