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Rising Damp

Signs of Rising Damp are usually observed as a damp mark or stain patch to the decorative wall covering to the lower wall areas normally above skirting board level, this is usually the first sign of failure of the existing damp course or the omission of a damp course barrier in new build properties.


Rising Damp is mainly found on older properties where the existing damp proof course barrier has deteriorated due to age as a result of wear.


Kerelaw Building Preservation treatments for Damp Proofing typically involves the installation of a new horizontal Damp Proof Course barrier and our preferred method is the use of injection barrier chemical cream or gel which is inserted by boring and injecting into the base of the treatment walls.


Rising Damp treatments may involve the removal of contaminated plaster up to a height of approximately 1metre above floor level and replacement using a specialist renovating plaster.


Kerelaw Building Preservation undertakes all treatments using our own fully trained and experienced technicians who undertake the full treatments from chemical injection to plaster removal and replacement.

To establish the extent and type of Dampness Kerelaw Surveyors will inspect your property and undertake moisture profile testing of the walls to establish the level and cause of dampness and provide a best solution, whereby a Professional specification report and quotation, based upon our findings and recommendations will be provided.


The Kerelaw Building Preservation Rising Damp Guarantee will be issued on completion of our works to the treatment areas providing long-term protection for up to 20 years, in addition, as members of the Insured Guarantees . we offer underwritten guarantee protection, please see our Guarantee section for details.


The basic symptoms of damp, e.g. peeling paint, are largely the same regardless of the cause of the dampness. Different causes of dampness require different treatments therefore we always recommend a survey to diagnose the cause before treatment begins. Rising damp in buildings may be defined as the vertical flow of water up through a permeable wall structure, the water being derived from ground water. The water rises through the pores (capillaries) in the masonry by a process loosely termed "capillarity." In other words the masonry acts like a wick


Treatment of rising damp (known as "damp-proofing" or "damp coursing") means installing a chemical damp proof course ( DPC) using specialist injection equipment. This treatment will require a certain degree of re-plastering.

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