About Dolenco
ABOUT US
Expertise In Water Management Solutions For Infrastructure
For over 25 years, Dolenco has been a trusted partner in designing underground structures.
As a danish manufacturer specialized in tunnels and other underground structures, we have built our reputation on delivering permanent, reliable solutions that maintain infrastructure for generations to come.
Our Story
Dolenco Drain is today a market leader internationally, with a multitude of different project applications around the world.
Realising the complexity of traditional water management approach of blocking water by waterproofing, and that it is often insufficient and risky, we focus on alleviating the water and permanently prevent pressure on the lining.
This approach enables short term functionality during construction without remedial work and long term durability with reduced maintenance needs. This approach support the demanding requirements of modern tunnel construction, which makes a systematic approach to water management even mores important, securing permanently preventing water pressure and ingress.
Our extensive experience with solving complex problems, we are now able to deliver robust and safe solutions for underground construction. We recognise that water will always find a way, and believe the key to long-term durability, is to systematically manage water flow.
Our Values
Our Expertise
Over 25 years of experience in waterproofing and repair of underground structures has taught us that every project is unique. Our expertise spans tunnel construction for road, rail, and metro systems worldwide, underground structures including basements and foundations, comprehensive understanding of water behavior, development of sustainable materials, and optimal installation methologies.
Innovation & Development
Our commitment to innovation drives continuous improvement. We hold patented technologies, lead the industry in environmentally responsible solutions, conduct rigorous validation of all products and systems, and adapt solutions for diverse geological and climatic conditions internationally.
Quality & Certification
Dolenco Tunnel Systems maintains the highest standards with ISO 9001:2015 quality management systems certification, ISO 14001 environmental management systems and continuous improvement through regular review and enhancement of all processes.
Our Commitment
We believe in permanent solutions designed for 120+ year service life, environmental responsibility through sustainable materials and manufacturing processes, technical excellence with continuous innovation, customer success with comprehensive support for every project, and long-term partnerships that last as long as our products.
Experience the Dolenco difference – where danish engineering excellence meets international infrastructure needs.
Environmental Leadership
At Dolenco, sustainability isn’t just a commitment—it’s fundamental to our product design and manufacturing process. We believe that protecting underground structures and protecting our environment go hand in hand.
100% Sustainable Materials
Our drainage systems are manufactured using materials that are 100% recyclable or 100% biodegradable. Dolenco Drain can be fully recycled at end of life and assure 100% Circular Economy.
We utilize robust and safe materials in production and even offer biodegradable options for Dolenco Drain. No harmful chemicals are used in our manufacturing or installation process.
Resource Conservation Through Smart Design
Dolenco Drain systems significantly reduce resource consumption. Our lightweight design requires less concrete coverage, and ensures easy work environment at installation, reduces equipment and energy needs.
By preventing water damage already during construction, we eliminate resource-intensive repair work and extend structure lifespan, reducing replacement needs over the lifetime of the structure.
Real-World Environmental Impact
A multitude of projects have achieved significant time savings, reduced their project’s carbon footprint, and lowered material consumption through concrete savings.
Lightweight means lower impact. One module weigh only ~700g/m2. Design simplifies transport and reduces shipping emissions. Quick installation minimises construction site impact, and no heavy machinery is required for mounting.

