In 2011 from july to august  SIA "Poliurs" changed aged district heating pipes in Augšlīgatnēs village, Līgatnes district.

Old district heating pipeline was changed with preinsulated pipes, which have better heat transfer coefficient. Heating main with about 1000 meters of pipe was replaced.

Together with preinsulated pipe supply, SIA "Poliurs" was controlling the construction process  as general contractor.