The Aracoeli fountain was built in 1589 and is in a deteriorating state caused by a lack of maintenance. The following works will be carried out on the stone surfaces:

• mechanical removal of inconsistent surface deposits;
• removal of upper invasive weeds;
• biocidal treatment;
• mechanical removal of limestone deposits;
• mechanical finish to eliminate limescale;
• chemical cleaning;
• crack reinforcement on disaggregated surfaces;
• re-adhesion of detached fragments and sections;
• mechanical removal of non-functional plastering;
• plastering with mortar and hydraulic lime;
• plastic integrations to fill defects in the decoration;
• application of water-repellent coating.

The following works will be carried out on the metal surfaces:

• overhaul and inspection of all metal elements;
• antioxidation treatment of metal elements;
• replacement of deteriorated and non-functional elements.

The interior of the basins will undergo the following work:

• mechanical removal of the limestone layer;
• removal of the surface waterproofing layer;
• removal of non-functional plastering;
• screed crack reinforcement;
• preparation of the basin’s bottom;
• application of new waterproofing material.