Geosynthetic solutions for the Balkans

Strength for structures

Geomembranes, geotextiles and sealing systems – from stock in Belgrade, backed by a manufacturer with almost five decades of experience.

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1978Manufacturing since
40+Export countries
6Product groups
ISO9001 · 14001 · 45001
Welding HDPE geomembrane on site
1978Manufacturing since

About us

Engineering solutions for every terrain

DunaSava d.o.o. is a Belgrade-based company specialising in the supply of geosynthetic materials to Serbia and the Western Balkans. We are part of the Geoser group – a Turkish manufacturer of geomembranes and geosynthetics exporting to more than 40 countries since 1978.

We combine the production capacity and laboratory quality control of the parent factory with local stock, fast delivery and technical support in Serbian. From design documentation to installation supervision, we are with you at every stage of the project.

  • Stock in BelgradeStandard geomembrane and geotextile thicknesses and widths available immediately, with no waiting for imports.
  • Technical supportHelp with sizing, specification and material selection to EN and GRI standards.
  • Site deliveryLogistics to site in Serbia, Montenegro, Bosnia and Herzegovina and North Macedonia.
  • Installation supervisionOn request we provide expert welding supervision and seam testing.

Our mission

Quality and reliability in every project

Our mission is to give investors, designers and contractors in the Balkans world-class geosynthetic materials – certified, available and backed by expertise – so that every structure is safe, watertight and built to last.

Our products

World-class geosynthetic solutions

The entire range is manufactured by Geoser in its own plants in Ankara under ISO 9001 quality control. All products are environmentally friendly and free of hazardous substances.

HDPE Geomembrane01

HDPE Geomembrane

High-density polyethylene liner for landfills, reservoirs, ponds and mining facilities.

Key features & applications

Key features

  • Thickness 0.5 – 3.0 mm
  • Smooth and textured surfaces
  • Roll width up to 8 m
  • Chemical and UV resistant

Applications

  • Municipal and industrial landfills
  • Irrigation reservoirs and canals
  • Mining heap-leach pads
  • Water treatment plants
Request data sheet
PVC Geomembrane02

PVC Geomembrane

Flexible polyvinyl chloride membrane for tunnels, foundations, roofs and pools.

Key features & applications

Key features

  • Thickness 1.0 – 3.0 mm
  • High elasticity and conformability
  • Root resistant
  • Hot-air welding

Applications

  • Tunnels and metro
  • Foundations and basements
  • Terraces and underground car parks
  • Tanks and pools
Request data sheet
PVC Waterstop03

PVC Waterstop

Extruded PVC waterstops for sealing construction and expansion joints in concrete.

Key features & applications

Key features

  • Internal and external profiles
  • Widths 150 – 320 mm
  • Temperature range –40 / +70 °C
  • Recyclable, free of harmful substances

Applications

  • Dams and hydropower
  • Tunnels and viaducts
  • Water tanks and treatment plants
  • Sewer systems
Request data sheet
PVC T-Grip Geomembrane04

PVC T-Grip Geomembrane

PVC liner with T-shaped ribs that anchor mechanically into fresh concrete for permanent protection.

Key features & applications

Key features

  • Continuous T-ribs along the roll
  • Mechanical anchorage into concrete
  • High chemical resistance
  • Cast-in-place or precast installation

Applications

  • Concrete pipes and manholes
  • Wastewater plants
  • Channels and collectors
  • Concrete rehabilitation
Request data sheet
HDPE T-Grip Geomembrane05

HDPE T-Grip Geomembrane

HDPE liner with T-ribs for permanent protection of concrete exposed to aggressive media.

Key features & applications

Key features

  • All HDPE geomembrane properties
  • Enhanced chemical and ageing resistance
  • Outstanding puncture resistance
  • Extrusion-welded seams

Applications

  • Dams and irrigation canals
  • Landfills and collector shafts
  • Building foundations
  • Concrete pipes
Request data sheet
GTX Geotextile06

GTX Geotextile

Non-woven needle-punched geotextile for separation, filtration, drainage and geomembrane protection.

Key features & applications

Key features

  • Mass 150 – 1200 g/m²
  • UV-stabilised polypropylene fibres
  • Roll width up to 6 m
  • High permeability and puncture resistance

Applications

  • Geomembrane protection in landfills
  • Roads, railways and embankments
  • Groundwater drainage
  • Slope and tunnel stabilisation
Request data sheet

Our sectors

Solutions for every industry

Landfills & waste management

Base and capping liner systems, leachate collection and rehabilitation of closed cells.

Water & irrigation

Reservoirs, canals, retention basins and water tanks – impermeable systems that save every cubic metre.

Mining & energy

Heap-leach pads, tailings, ash ponds and chemical storage compliant with environmental regulations.

Construction & infrastructure

Waterproofing of tunnels, foundations, bridges and underground structures; waterstops for every joint type.

Environmental protection

Remediation of contaminated sites, secondary containment of tanks and wastewater treatment.

Agriculture & aquaculture

Fish ponds, manure lagoons, silos and farm irrigation reservoirs.

Production & quality

Certified quality, documented traceability

Every roll we deliver comes with a manufacturer's declaration and a factory laboratory report. Geoser production is certified to ISO 9001, ISO 14001 and ISO 45001, and products are tested to EN, ASTM and GRI-GM13 methods.

  • ISO 9001:2015Quality management system
  • ISO 14001:2015Environmental management system
  • ISO 45001:2018Occupational health and safety
  • CE / FPCFactory production control and EN conformity
Request certificates and data sheets
Extrusion welding of a geomembrane seam

Projects

Proven in the field

Geoser group materials have been installed in landfills, reservoirs, mines and infrastructure in more than 40 countries – from France and Italy to Malaysia and Tanzania.

Landfill lining – HDPE geomembrane
Landfill lining – HDPE geomembraneDouble liner system with geotextile protection
Seam welding on site
Seam welding on siteSeam quality control with extrusion welding
Geotextile protection
Geotextile protectionNon-woven geotextile cushion below and above the liner
Slope lining
Slope liningTextured HDPE liner on steep slopes
Irrigation reservoir
Irrigation reservoirLarge-scale impermeable basin
Agricultural reservoir
Agricultural reservoirFast installation on smaller structures

Contact

Get in touch

Send us an enquiry with the basics of your project – type of structure, area, required thickness – and we will reply within one working day.

Office & warehouse
DunaSava d.o.o.
Hilandarska 141/1
11271 Surčin, Beograd, Srbija
Phone / WhatsApp
+381 63 820 1207
WhatsApp
Working hours
Mon – Fri, 08:00 – 17:00 CET

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