Service
Commercial Mold Inspection & Testing
In a commercial building, a mold concern affects employees, tenants, and customers — and it usually needs documentation. We inspect offices, retail, and other commercial spaces, sample where it helps answer the question, and provide findings you can share with owners and managers.
This page describes commercial mold inspection & testing at our main San Diego location, Pro Plus Mold Inspection. Call (619) 935-5995 to schedule.
When it's useful
- Employee or tenant complaints about odors or air quality
- Water intrusion from a roof, plumbing, or neighboring unit
- Before leasing, buying, or reopening a space
- After remediation, to document results
What we do
- 1Scoping call to understand the building and the concern
- 2Inspection of affected areas and HVAC where accessible
- 3Moisture mapping and thermal imaging
- 4Air and surface sampling
- 5Written findings for owners and property managers
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
- Sampling isn't automatic. We recommend it only when it will answer a question the inspection can't.
- Air samples may be interpreted with outdoor comparison samples as appropriate to the sampling plan, alongside site observations.
- Surface swab or tape-lift samples characterize material collected at the specified surface, not an outdoor air baseline.
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.
Commercial Mold Inspection & Testing 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
Indoor Air Quality Testing
Indoor air quality testing focused on mold spores and the moisture conditions that affect the air you breathe.
Learn moreHVAC Mold Inspection & Testing
Inspection and sampling around air handlers, vents, and ducts where condensation can support mold.
Learn moreHOA & Property Management Services
Mold inspection and testing for HOAs and property managers handling leaks, complaints, and common areas.
Learn morePost-Remediation Verification & Clearance Testing
Post-remediation inspection and sampling, where appropriate, to document work-area conditions and potential follow-up before reconstruction.
Learn moreOther Pro Plus locations
Commercial Mold Inspection & Testing is also confirmed at these Pro Plus Mold Inspection locations:
Book commercial mold inspection & testing in San Diego
Talk to an inspector or send us a quote request.