1 – To remove silicone caulk we use: Various knives and blades to cut into the old caulk and remove it, such as: A putty knife, an electric knife or a utility knife.  Long-nosed pliers.  A solvent, a cloth and a brush to remove stubborn particles and any impurities. 2 – SEPARATE OLD JOINTS FROM SURFACES  We insert the corner of the putty knife blade, flat under the old caulk, and push the blade forward in order for the joint to release itself from the surface. If the old caulk's separation can not be achieved with a knife, we will use an electric knife.   3 – REMOVE ALL TRACES OF OLD CAULKING  After the removal of the caulking joint, some pieces may remain stuck to surfaces and must be removed manually. We use long nosed pliers to grip the individual pieces. If needed we will use blades as well.   4 – DUSTING OFF OF THE SURFACE TO BE CAULKED  When the old caulking is completely removed, we use a soft brush or a vacuum to remove any dust or small sealant particles from the surfaces.    5 - Cleaning the surfaces with a solvent.  We use solvent and a cloth to rub off and clean the surfaces from any oil, glue, or other impurities. The surfaces must be clean and dry before the application of the new sealant for perfect adhesion.   ●      To learn how to remove caulking click on this link ●     To learn how to caulk a window (link to window caulking page )