Service
Moisture Detection & Moisture Mapping
Mold needs moisture. Moisture mapping finds where materials are wet and how far the wetness spreads, so you can fix the source and know exactly which areas are affected.
This page describes moisture detection & moisture mapping at our main San Diego location, Pro Plus Mold Inspection. Call (619) 935-5995 to schedule.
When it's useful
- After a leak or flood
- Stains that keep coming back
- Before drywall or flooring is replaced
What we do
- 1Pin and pinless moisture meter readings
- 2A marked-up map of wet and dry boundaries
- 3Thermal imaging to guide readings
- 4Likely source of the moisture
Inspection scope
- The rooms and areas you're concerned about, plus related areas such as nearby bathrooms, under sinks, and exterior walls
- Accessible attics and crawl spaces, where safe to enter
- Moisture readings on suspect walls, ceilings, floors, and cabinetry
- Thermal imaging of suspect areas to guide moisture readings
Sampling options
- Moisture mapping doesn't require sampling. If mold is suspected in a wet area, we'll discuss whether sampling would help.
What you receive
- A walkthrough of what we found while we're on site, when you're available
- A written summary of observations, moisture readings, and likely moisture sources
- Laboratory results, if samples were taken
- Plain-language next steps, including when no further action is needed
Limitations
- We inspect accessible areas only. We don't open walls, move heavy furniture, or remove finishes unless agreed in advance.
- Thermal imaging shows temperature differences, not mold. Readings are confirmed with a moisture meter.
- Sampling results are limited to the method, time and location sampled; they cannot establish whole-building safety or the absence of hidden mold.
- Inspection and testing cannot diagnose illness, determine the cause of symptoms, or rule out a medical condition. Direct health questions to qualified medical professionals.
- There are no EPA or federal airborne mold limits. Sampling cannot establish compliance with federal mold standards or guarantee health safety.
- Findings reflect accessible areas and conditions during the visit; they cannot guarantee that all hidden mold is found or that future conditions remain unchanged.
Moisture Detection & Moisture Mapping questions
Do I need testing if I can already see mold?
Often not. If growth is visible, finding and fixing the moisture source matters most. Testing helps when the source is hidden, when you need documentation, or after cleanup.
How should I prepare?
Clear access to the areas of concern, the attic hatch, and the crawl space entry, and tell us about any past leaks or repairs. See our preparation guide for details.
Related services
Thermal Imaging / Infrared Inspection
Infrared cameras reveal temperature patterns that can point to hidden moisture behind walls and ceilings.
Learn moreWater Damage Mold Inspection
After a leak or flood, find out how far the water went and whether mold has started to grow.
Learn moreWall Cavity Mold Inspection & Testing
Testing the air inside wall cavities to check for hidden mold behind drywall after leaks.
Learn moreOther Pro Plus locations
This service is listed for our San Diego location. Availability at other Pro Plus Mold Inspection locations isn't confirmed. Call the location you need, or see the location directory.
Book moisture detection & moisture mapping in San Diego
Talk to an inspector or send us a quote request.