A damp proof course helps control ground moisture that can travel upward through porous brick, stone, and masonry walls. For property owners in Balham and across SW12, Damplast investigates whether the signs on a wall are consistent with rising damp before recommending treatment. Where a new course is appropriate, we inject a silicone-based chemical cream into the mortar bed to form a moisture-resistant barrier. We can also deal with affected plaster and arrange the reinstatement work needed after the damp proofing treatment.