Repairs & finishes
Damp-resistant plastering
Replastering specifications appropriate to walls affected by dampness or salt contamination.
What the issue is
Where plaster has failed or is salt-contaminated, a suitable replastering specification helps provide a stable surface for decoration. Plaster replacement should follow, not replace, treating the moisture cause.
Common symptoms
- Blown or hollow plaster
- Salt deposits pushing through decoration
- Repeated decoration failure
- Crumbling plaster at low level
Likely contributing factors
- Historic or current dampness
- Hygroscopic salt contamination
- Unsuitable original finishes
- Applying finishes before drying
Conditions that may be mistaken for it
- Sound plaster with only decorative failure
- Condensation-related surface issues
How the issue should be investigated
- Assess plaster condition and extent of failure
- Consider salt contamination
- Confirm the moisture source has been addressed
- Establish drying progress
Potential treatment or repair options
- Removal of failed plaster to a suitable height
- Renovating render and plaster systems
- Breathable lime-based specifications where appropriate
- Reinstating skirtings and decoration
When treatment may not be appropriate
- Where existing plaster is sound
- Where the wall is still drying and can be left
- Where only redecoration is needed
Factors affecting the cost
- Area and height of replastering
- Removal and waste disposal
- Skirting and radiator removal
- Drying time before decoration
What to expect during an inspection
The surveyor will test plaster condition, assess salting and confirm whether replastering is genuinely required.
Final recommendations always depend on the property, the inspection findings and the confirmed cause. Elevated readings alone do not confirm rising damp, not every mould problem requires extensive treatment, and damp-affected plaster does not always need replacing.
Frequently asked questions
Next step
Not sure which inspection you need? Start with a few questions.
Tell us what you are seeing and we will set out what is likely, what is uncertain and which inspection would answer the question. Speak to us on 0333 335 6152 if you would rather talk it through.