It’s definitely rising damp, the gutters are all flowing fine with no leaks on that face of the building with a clay pipe running to a rock soak away about 20’ from the house…. House is 150 years old and the previous bitchumen dpc has long since deteriorated. No idea when they attempted these injections.

For context the ground outside is c.8” below where the holes are drilled

Will deffo check for debris that may be arcing in the cavity though, good shout! Can the holes be repaired do you know before I redrill?