Stop walls from being damp

Linh requested 3 quotes from Ventilation Specialists in Reservoir

one bedroom in home has damp walls don't know where it is coming from and required this to be fix/treated.

Sub floor ventilation
Req sub floor ventilation

Rising Damp Issue Requires Fixing
Pre-purchase report from Archicentre identified rising damp using damp meter....

Provide Subfloor ventilation
I have a old whetherboard house. An architect mentioned that it has no...

Subfloor ventilation issue in Edwardian period house
Need to improve subfloor ventilation in a early 1900's edwardian house....