Recently purchased 1930's semi, which had been empty about a year. We were aware that a disabled access ramp had been causing damp issues to the side of the house, as it was too high, and removed this quickly. We did get a damp specialist out prior to purchase and were advised to have the whole front and side of the house re-done with a chemical dpc and re-plastered - at some cost (and mess). However, we have tried to let the house dry and tackle the areas that were causing the damp. The internal walls appear to have had a new DPC within last 10yrs or so, plaster is in really good condition and there are no marks or signs of damp. No damp smell either.
We also purchased a damp detector, which does gives off a low audible tone in only a few areas of the internal walls in question. The external wall does also need good re-pointing done in some patches, which probably hasn't helped, but we will also sort this. If we've resolved the problems and there are no apparent "signs" of damp do we still need to get the DPC re-done, or will it continue to improve?
Have read all the helpful advice under this topic on this site, some of which doesn't seem to have a very high opinion on chemical DPC's.
GREATLY APPRECIATE ANY FEEDBACK PLEASE.
