Rising Damp

Although common in older buildings, the effect of Rising Damp is not limited to old properties and newer builds can also be affected. Signs to look out for when diagnosing rising damp include a 'tide mark' or salty looking residue on affected walls of buildings. As part of the damp proofing process, the internal plaster may need to be removed and replaced.


There are various reasons why a property could be affected including high ground levels and rising water levels surrounding the building. Rising damp is so called because it is caused by water present in the ground rising up through porous building materials such as the bricks and mortar in walls.

Treatment & Prevention

Recommendations for damp proof courses in walls were first introduced in the Public Health Act of 1875 and most properties built within the past 100 years or so will usually have a damp proof course installed.

In cases where no damp proof course was installed, or where the existing damp proof course has failed there are various treatments available including, but not limited to:

  • Replacement of the damp proof course
  • Injection of a chemical damp proof course
  • Installation of damp proofing rods
  • Evaporative methods e.g. porous tubes
  • Improved drainage of surrounding land

Our experienced and skilled advisors will be able to recommend the best course of treatment for your property.

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