Comprehensive Environmental Investigation

Mold assessment: find the source, not just the symptom

ESG's mold assessments go beyond sample collection. We use moisture meters, thermal imaging, and building science expertise to investigate why mold is growing in the areas we can access, and what it is likely to take to correct it at the source. We assess. We never remediate.

Independent Testing No Remediation Work Certified Inspectors
ESG inspector examining a ceiling for moisture and mold during an assessment in Greensboro, NC

From hidden moisture to a concrete remediation plan

Mold is almost always a moisture problem. Without identifying the source, cleanup efforts often prove temporary. ESG's assessment investigates the likely root cause so repairs can target the actual problem.

Water damage around a door frame pointing to a hidden moisture source
Before Assessment

Mold keeps coming back

Surface cleanup without identifying the moisture source often leads to recurring mold growth. The underlying leak, condensation issue, or humidity problem continues to feed new growth.

Thermal imaging scan revealing hidden moisture inside a wall
After ESG Assessment

Source identified, a clear path forward

A written report documents the moisture sources identified, the observed extent of suspect growth, and remediation guidance, so the right contractor does the right work. A detailed remediation protocol can be provided when needed.

A thorough investigation of accessible areas, inside and out

ESG's mold assessments use multiple diagnostic tools, combining visual inspection of accessible areas, instrumented measurements, and laboratory sampling when needed.

Detailed visual inspection of accessible interior and exterior building conditions, identifying water stains, visible suspect growth, and moisture intrusion indicators
Moisture meter readings within building materials to detect elevated moisture behind walls, floors, and ceilings
Thermal imaging scans to help locate hidden moisture not visible to the naked eye
Humidity, temperature, and environmental measurements to evaluate conditions supporting mold growth
Air and surface sampling when needed, analyzed by accredited third-party laboratories
Written findings report, with an ANSI/IICRC S520 remediation protocol when needed; laboratory samples, extended investigation time, and a detailed protocol may be scoped separately
Moisture meter reading being taken on an interior wall
Infrared thermometer checking surface temperature during an ESG assessment
Air sampling pump collecting a sample during a building assessment
Moisture findings page from an ESG written assessment report
Why ESG

Independent assessment with no remediation conflict

Environmental Solutions Group has been providing building science and environmental consulting services for 23+ years, since 2002. Unlike companies that assess and remediate, ESG does only one thing on the assessment side: give you an honest read on the conditions we observe and measure.

ESG is an independent third-party testing and consulting company and does not perform remediation. This separation helps reduce financial conflicts between evaluation and corrective work. Our role is to document what we find, explain what it means, and provide a written remediation protocol when one is needed, so you can hire any qualified contractor with confidence.

ESG can also perform post-remediation verification (PRV) testing after cleanup is complete, independently evaluating the designated remediation area against applicable clearance criteria at the time of inspection.

Schedule Your Assessment
2002
Year ESG was founded
CIEC
Council-certified Indoor Environmental Consultant on the ESG team
S520
ANSI/IICRC standard guiding ESG protocols
0
Remediation jobs performed: evaluation stays separate from corrective work

How a mold assessment works

A thorough four-step investigation, from initial consultation through a written report with remediation guidance.

ESG professional reviewing property documents during an initial consultation
1

Schedule

Call 336-373-1538 or submit a request online. We'll discuss your concerns, review the property history, and determine the appropriate scope for the assessment.

Thermal imaging of plumbing lines during an on-site ESG investigation
2

On-site testing

An ESG inspector investigates the accessible areas of the building: visual inspection, moisture readings, thermal imaging, environmental measurements, and air or surface sampling as needed.

Photo: samples packaged for accredited lab analysis
3

Lab analysis

Any collected samples are sent to accredited third-party laboratories for analysis. Results are integrated with on-site measurements to build a clearer picture of the conditions evaluated.

Readings page from a completed ESG written assessment report
4

Clear report

You receive a written report covering the moisture sources identified, the observed extent of suspect growth, and remediation guidance, with a detailed protocol when needed. An ESG professional walks you through every finding.

Mold assessment vs. mold testing

Mold assessment: the deeper investigation

A mold assessment is a broader investigation of accessible building conditions that looks at why mold is growing and what it is likely to take to correct it, not just whether it exists.

  • Investigates the moisture source driving mold growth
  • Evaluates how far contamination may have spread, including potential hidden concerns behind walls
  • Provides a written remediation protocol per IICRC S520 when needed
  • Supports post-remediation verification (PRV) testing

Mold testing alone: its limits

Mold testing measures what is in the air or on surfaces. It is valuable for documentation and baseline data, but it does not diagnose building problems or guide repairs.

  • Does not locate the source of moisture
  • Does not evaluate how far contamination has spread
  • Does not include a remediation protocol
  • Without finding the source, mold often returns after cleanup

Why clients trust ESG

Independence is the foundation of every assessment report we deliver. Here is what stands behind ESG's work.

Independent environmental testing for 23+ years, since 2002
We test, we never remediate: this separation helps reduce financial conflicts between evaluation and corrective work
Technical reports receive review appropriate to the service and scope before delivery
ESG's team includes a Council-certified Indoor Environmental Consultant (CIEC), a Council-certified Indoor Air Quality Manager (CIAQM), Council-certified Residential Indoor Environmentalists (CRIEs), and staff certified in BPI Infiltration and Duct Leakage testing
BBB Accredited Business with an A+ rating
Serving NC, VA and TN from our Greensboro, NC office
The Environmental Solutions Group team at their office in Greensboro, NC

Mold assessment: frequently asked questions

What is the difference between a mold assessment and mold testing?

Mold testing collects samples to identify what types of mold are present and at what levels. A mold assessment is a broader building investigation: it looks at why mold is growing, where the moisture is coming from, how far contamination may have spread, and what repairs are likely needed. Testing may be included as part of an assessment.

Does ESG perform the mold remediation after the assessment?

No, and that is a critical distinction. ESG provides only independent assessments and consulting. We never perform remediation, which helps reduce financial conflicts between evaluation and corrective work. We develop the remediation protocol and can independently evaluate the completed work through post-remediation verification (PRV) testing, but the cleanup itself is done by a contractor of your choosing.

What tools does ESG use during a mold assessment?

Our assessments use moisture meters to measure water content inside building materials, thermal imaging cameras to locate hidden moisture behind walls and ceilings, humidity and temperature instruments, and particle monitoring equipment. Air and surface samples are collected when needed and analyzed by accredited third-party laboratories.

What does a remediation protocol include?

When remediation is necessary, ESG provides a written remediation protocol that outlines the proper scope of cleanup, containment requirements, removal procedures, and clearance criteria, developed in accordance with ANSI/IICRC S520 mold remediation guidelines. This document guides contractors and sets clear criteria for the work.

When should I schedule a mold assessment vs. mold testing?

If you need basic documentation about mold presence (for a real estate transaction, insurance claim, or baseline understanding), mold testing may be sufficient. If mold keeps recurring, you suspect a larger moisture problem, you experienced water damage, or you need to understand the likely scope before remediation, a mold assessment is the right service.

Can ESG evaluate the work area after remediation is finished?

Yes. After remediation work is completed, ESG can perform post-remediation verification (PRV) testing, independently evaluating the designated remediation area against applicable visual, moisture, odor, particle, and laboratory clearance criteria at the time of inspection. This independent clearance evaluation documents the condition of the work area when it is inspected.

Exterior of the Environmental Solutions Group office building in Greensboro, NC
Certified inspectors. Documented methods. Honest answers.

Schedule your mold assessment

Stop guessing. Find the source. ESG's independent assessments give you the building science data you need to make informed decisions and address the problem at its source.

Call 336-373-1538 · Environmental@go-esg.com