Overview
At Damp and Mould Solutions, we pride ourselves on delivering thorough and professional damp remediation services. This case study documents a severe rising damp issue we treated in a residential property in London, including the diagnostic method, treatment specification, and the standards our surveying team worked to.
CSRT (Certified Surveyor of Remedial Treatments) & PCA(QT) Qualified Timber and Damp Surveyor · 15+ years diagnosing and remediating damp and mould in UK residential and local authority housing stock.
The Problem
| Client | Private homeowner |
| Location | Ground floor living room, residential property, London |
| Issue | Severe rising damp affecting walls |
| Presenting signs | Peeling paint, efflorescence (salt deposits), musty odour |
| Standard followed | PCA (Property Care Association) remedial treatment guidance |
A homeowner reached out to us with concerns about rising damp affecting walls in their ground floor living room. The dampness had led to peeling paint, efflorescence, and a musty odour, posing a health risk to occupants and threatening the integrity of the property.
Initial Assessment
Our surveying team carried out a detailed on-site inspection of the affected area, taking moisture meter readings at skirting and mid-wall height to confirm the pattern typical of rising damp. We identified:
- High moisture levels in the walls, consistent with rising damp rather than condensation or penetrating damp
- Salt deposits (efflorescence) and peeling paint as visible signs of moisture migration through the wall structure
- Potential health risks associated with prolonged exposure to damp conditions, in line with HSE guidance on damp and indoor air quality
We explained the diagnosis and remediation process to the homeowner and agreed a scope of works before starting on site.
The Remediation Process
1. Safety Measures
- Technicians wore full personal protective equipment (PPE)
- The area was sealed off to prevent dust and debris from spreading to other parts of the house
2. Moisture Diagnosis and Source Identification
- Used calibrated moisture meters to map the extent of dampness across the affected wall
- Investigated potential sources of moisture, including external drainage issues and subfloor ventilation
3. Damp Proofing Treatment
- Removed affected plaster and surface materials to expose the damp wall
- Applied a waterproofing membrane to the wall to create a barrier against rising moisture
4. Replastering
- Used a specialised damp-proof plaster system to restore the affected area
- Ensured proper curing and drying time before decoration to prevent future damp issues
5. Final Inspection and Recommendations
- Conducted a final surveyor inspection to confirm complete moisture eradication before sign-off
- Advised on improving drainage around the property and maintaining proper ventilation to prevent future rising damp issues
Results
A follow-up moisture check was carried out after the replastered wall had fully cured to confirm no residual dampness remained.
Client Testimonial
“We are extremely grateful for the exceptional service provided by Damp and Mould Solutions. The team was highly professional and explained every step of the process. Our living room is now dry and comfortable, and we no longer have to worry about rising damp. Thank you for your outstanding work!”
Conclusion
The comprehensive rising damp remediation carried out by Damp and Mould Solutions successfully eradicated the damp issue, restoring the safety and aesthetics of the homeowner’s living room. The combination of a waterproofing membrane and specialist damp-proof plastering, specified and signed off by a CSRT/PCA(QT) qualified surveyor, ensured a durable, standards-compliant solution.
If you’re facing similar issues with rising damp in your property, contact Damp and Mould Solutions today for a professional assessment and effective remediation service.
Prevention Tips for Rising Damp
- Identify the source: Check for external factors contributing to rising damp, such as blocked drains or insufficient drainage around the property.
- Improve ventilation: Ensure proper airflow within the home to reduce humidity levels.
- Regular maintenance: Conduct routine inspections of gutters, downspouts, and drainage systems to ensure they function correctly.
- Use damp-proofing products: Apply damp-proof membranes and paints in susceptible areas.
Frequently Asked Questions
How do you tell rising damp apart from condensation?
Rising damp typically shows as a tide mark up to around a metre from floor level, with salt deposits (efflorescence) and peeling paint, and is confirmed with moisture meter readings taken at different wall heights — unlike condensation, which tends to affect cold surfaces and window reveals.
How long does a rising damp remediation like this take?
Removing affected plaster, applying a waterproofing membrane and replastering typically takes a few days on site, followed by a drying-out and curing period before decoration and a final inspection.
Will rising damp come back after treatment?
Provided the waterproofing membrane and plaster system are installed correctly and any contributing drainage or ventilation issues are addressed, recurrence is unlikely. Ongoing risk usually points to an unresolved external moisture source.
Why Choose Us?
- Expertise: CSRT/PCA(QT) qualified surveyors with 15+ years’ experience in damp remediation.
- Comprehensive solutions: Thorough inspection, treatment, and prevention strategies.
- Safe and effective methods: Advanced waterproofing and damp-proofing technologies applied to PCA guidance.
- Customer satisfaction: Dedicated to ensuring our customers’ homes are safe and dry.
Get in touch for a quote
Call us at 020 4542 6114 or complete the form below to get started, or email info@dampandmouldsolutions.co.uk.
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