Laboratory Analysis of Plaster Samples
Description: Small plaster samples are extracted from affected masonry walls and submitted to an independent testing laboratory. The lab analyses the sample for hygroscopic salts (specifically nitrates and chlorides).
Value: Scientifically differentiates true rising damp (which deposits ground salts over time) from surface condensation or lateral penetrating damp. Ensures that remedial recommendations are based on chemical analysis rather than surface meter readings alone.
Price £299 + VAT
Check Availability And Book Now
This service can be beneficial when:
- The cause of low-level dampness is disputed.
- Moisture-meter readings are inconsistent.
- A property has undergone previous damp-proofing.
- Old plaster continues to attract moisture.
- Independent laboratory evidence is required.
- Several possible moisture sources are present.
Before You Book
Note: Salt analysis is only one part of the investigation. Results must be assessed alongside the location of moisture, condition of the masonry, external ground levels, damp-proof course and potential plumbing or rainwater defects. Requires minor invasive plaster sampling (the only add-on requiring material removal). Survey fee credited when repairs are completed by us.
Price £299 + VAT
Click Here To Check Availability And Book Now ❯FAQs
What exactly is tested?
Small plaster samples are extracted from affected masonry walls and submitted to an independent testing laboratory. The lab analyses the sample for hygroscopic salts, specifically nitrates and chlorides.
Why does a salt test matter?
It scientifically differentiates true rising damp, which deposits ground salts over time, from surface condensation or lateral penetrating damp. That way remedial recommendations are based on chemical analysis rather than surface meter readings alone.
Does the test damage the wall?
It requires minor invasive plaster sampling. This is the only add-on that requires material removal.
Is the salt result conclusive on its own?
No. Salt analysis is only one part of the investigation. Results must be assessed alongside the location of moisture, condition of the masonry, external ground levels, damp-proof course and potential plumbing or rainwater defects.
Do I pay for this twice if you carry out the repairs?
No. The survey fee is credited when repairs are completed by us.
Contact Us
If you have some questions, please complete this form:
Book and Pay for a survey
If you are ready to book a survey and pay, please complete this form:
Contact Us
If you have some questions, please complete this form:
Book and Pay for a survey
If you are ready to book a survey and pay, please complete this form:
Contact Us
If you have some questions, please complete this form:
Book and Pay for a survey
If you are ready to book a survey and pay, please complete this form: