Symptom guide
Damp Patches On Walls
Separating active entry from old damage, and finding which assembly is failing.
Damp at wall bases can come from outside, from plumbing inside the wall, or from condensation. The moisture pattern and gradient usually tell them apart before anything is opened.
What to check yourself
- Map the damp edge with a meter or ask for a professional scan
- Check for plumbing on the other side of the wall
- Watch whether it grows with rain or with use
Likely causes
- Envelope or flashing entry
- A concealed plumbing line
- Air leakage and condensation
What the investigation does
- Thermal scan followed by moisture confirmation
- Spray or dye testing where entry is weather-driven
- Repair scoping by assembly
Methods often used
Relevant services
Quick answers
What should I do first about this?
Thermal scan followed by moisture confirmation
Can this be fixed without opening everything?
In most cases the investigation narrows the target before any finish is opened. Small access points are sometimes needed to confirm a finding, and that is discussed before anything is opened.
How do I arrange an investigation?
Call 604-239-9934 or email [email protected] with the symptom and when it appears. You will get a reply within one business day with a fixed quote.
Call 604-239-9934 or email [email protected]