Dl.4231.4.2026.Jtb Service Of Preparing An Energy Efficiency Audit And Obtaining And Selling An Energy Efficiency Certificate, Along With Comprehensive Support And Advice In Obtaining An Energy Efficiency Certificate For An Investment Project Involving The Thermal Modernization Of A Commercial And Service Building At Ul. Wrzosowa 4A-8A-12A, Owned By The City Of Jastrzębie-Zdrój, Managed By The Municipal Real Estate Board.