Estre operates a large number of sanitary landfills in different parts of the country. In all of the sanitary landfills, there is complete control over soil, water and air quality. Also known as Waste Management Centers, they offer different complementary solutions including units for the final disposal of hospital waste, energy generation units and effluent treatment stations.

Sanitary landfills are highly efficient and safe systems for soil impermeabilization, drainage and collection of percolated liquids (leachate), which are decontaminated and become reuse water, drainage and treatment of gases that contribute to the greenhouse effect, geotechnical monitoring with periodic reports submitted to environmental agencies and environmental control of flora and fauna.