Damp problems
Rising damp diagnosis and treatment
Survey-led rising damp diagnosis, DPC treatment and salt-contaminated plaster reinstatement across Dorset, Hampshire and Wiltshire.
Why diagnosis matters
Treat the cause, then repair the damage
Low-level staining, peeling finishes and salt deposits can be associated with rising damp, but similar symptoms may have other causes. We inspect the building before recommending a damp-proof course or removing plaster.
Technical review
Dan, Director / Surveyor
Last reviewed: July 2026. Advice is general until the property, access and visible evidence have been assessed.
Guarantee & aftercare
Written guarantee terms are matched to qualifying work, with inclusions, exclusions and aftercare explained before acceptance.
What we consider
Possible causes and lookalikes
A missing or defective damp-proof course
Raised ground levels or bridged cavities
Plaster or screed bridging an existing DPC
Leaks, condensation and penetrating damp that mimic rising damp
Inspection method
A clear work sequence
Step 1
Inspect internal and external context
Step 2
Take moisture readings in context
Step 3
Identify bridging and alternative causes
Step 4
Specify DPC work and reinstatement only where suitable
Scope boundaries
Honest about what the work does—and does not—cover
Chemical injection is not a universal cure. Plumbing, roofing, drainage or structural defects may require a competent partner. Decoration is excluded until the wall has dried sufficiently.
Common questions
About rising damp diagnosis and treatment
Is every low-level damp patch rising damp?+
No. Condensation, plumbing leaks, bridged cavities and penetrating moisture can create similar symptoms. Diagnosis should consider the pattern, construction and surrounding defects.
Does contaminated plaster need to be removed?+
Where hygroscopic salts have contaminated finishes, removal and a suitable reinstatement specification may be necessary. The extent depends on the findings and wall construction.
How soon can I decorate?+
Drying time varies with wall thickness, moisture load, ventilation and treatment. We provide project-specific aftercare rather than a fixed promise.
Related services
Continue your investigation
Next step
Claim your complimentary survey before choosing a treatment
Tell us what you can see, when it changes and where the property is. Photographs can help us triage the next step.