New Construction Testing

Catch moisture problems before they become permanent.

Mold can begin forming in wet wood framing within 24 to 48 hours. ESG's new construction moisture and fungal testing helps builders identify problems early, document clean conditions, and protect projects from costly post-occupancy disputes.

Independent Testing No Conflict of Interest Certified Inspectors
ESG technicians carrying testing equipment across an active construction site

Moisture caught during framing vs. after move-in

The same moisture problem that costs hundreds of dollars to address during framing can cost tens of thousands to remediate after walls are closed. Third-party documentation at key construction phases gives builders defensible proof and buyers confidence.

Fungal staining on wet wood framing in an untested new build
Without Testing

Moisture enclosed behind drywall

Wood framing above 18% moisture content can support fungal growth. Once walls are closed and the building is occupied, identifying and correcting the problem becomes expensive, disruptive, and legally complicated, especially without documentation of what conditions existed during construction.

Exposed ductwork and framing inspected before drywall installation
With ESG Testing

Documented dry materials and normal fungal ecology

ESG inspections at rough-in and pre-occupancy phases confirm moisture readings are within acceptable ranges and document the absence of problematic fungal growth. Builders receive a written report suitable for warranties, insurance records, and buyer disclosure, protection that lasts long after the project closes.

What ESG evaluates on your construction site

ESG technicians evaluate conditions that contribute to moisture and fungal problems, using professional moisture meters, visual inspection, and accredited laboratory analysis when samples are needed.

Moisture testing of wood framing, subflooring, sheathing, and structural components using calibrated professional meters
Inspection for standing water, wet materials, improper lumber storage, and rain intrusion vulnerabilities
Visual identification of raised fungal growth, discoloration, staining, and conditions conducive to microbial growth
Surface or air sampling collected and analyzed by accredited laboratories when fungal conditions are suspected
Written inspection reports documenting moisture readings, fungal observations, lab results, and corrective recommendations
Consultation on site moisture management practices, including drying procedures and material storage guidance
Infrared thermometer used to check framing surface conditions
Technician in protective equipment inspecting a ceiling area with a light
Labeled surface sample collected for laboratory analysis
Printed ESG report pages with documented moisture readings
Why ESG

Independent verification with documentation built to stand up to scrutiny.

ESG is a third-party environmental testing firm. We test, we never remediate. That distinction matters enormously when documentation needs to stand up to scrutiny in a warranty dispute, insurance claim, or construction defect matter. Our reports are prepared using calibrated instrumentation, laboratory data, and detailed photographic evidence.

Our team has extensive field experience evaluating moisture intrusion, mold growth, and construction defects across residential, commercial, and institutional properties. We understand what builders need: clear findings, defensible methodology, and reports that are easy to present to buyers, insurers, and attorneys.

Early environmental monitoring during construction is far less expensive than remediation after occupancy, and our documentation provides credibility long after the project closes.

Schedule Site Testing
23+
Years of independent environmental testing since 2002
18%
Wood moisture threshold above which fungal growth can begin
24-48
Hours for microbial growth to begin on wet materials
0
Remediation services sold, no conflict of interest, ever

Two-phase monitoring from rough-in to move-in

ESG recommends evaluating projects at two key stages to catch moisture issues when they're still inexpensive to correct and document clean conditions before the building is occupied.

Construction blueprints and tools reviewed during project planning
1

Schedule & Site Review

Contact ESG to coordinate timing around your construction schedule. We discuss project scope, phase milestones, and documentation goals so testing happens at the most useful points in the build.

ESG technicians walking through an exposed framing stage on site
2

Phase 1: Rough-In Inspection

While framing is exposed, ESG verifies moisture levels are within acceptable ranges and inspects for visible fungal growth. Issues caught here can be corrected before drywall installation.

Air quality meter running inside a finished room before occupancy
3

Phase 2: Pre-Occupancy Inspection

After the building is dried-in, enclosed, and conditioned with HVAC, ESG confirms moisture conditions are stable, materials have dried appropriately, and fungal ecology is consistent with normal new construction.

ESG professionals reviewing report documentation before delivery
4

Lab Analysis & Clear Report

Any collected samples go to an accredited laboratory. You receive a comprehensive written report (including moisture readings, observations, lab results, and recommendations) ready for builder warranties, insurance files, or buyer disclosure.

With ESG documentation vs. without it

Builder with ESG documentation

Third-party environmental records demonstrate that proper moisture management was followed and conditions were monitored by qualified professionals at key construction phases.

  • Defensible written record of dry material conditions
  • Lab-backed proof of normal fungal ecology at pre-occupancy
  • Stronger position in warranty disputes or insurance claims
  • Buyer confidence backed by independent third-party findings

Builder without documentation

When a post-occupancy mold complaint surfaces, the absence of construction-phase environmental records forces builders into a defensive position with no objective baseline to reference.

  • No baseline: impossible to prove conditions were acceptable
  • Expensive remediation after walls are closed and occupied
  • Vulnerable to legal disputes with no supporting evidence
  • Buyer concerns handled reactively without credible data

Independent, certified, and accountable

ESG has provided independent environmental testing from Greensboro, NC since 2002. Every construction engagement is built on the same standards.

Independent since 2002: 23+ years of environmental testing experience
We test, we never remediate, so findings stay objective
Every report peer-reviewed by two certified professionals
Certifications include CIEC, CMR, CIH, IICRC, and EPA Lead-Safe
BBB A+ rated and family-owned, based in Greensboro, NC
Serving builders and developers across NC, VA and TN

New Construction Moisture Testing FAQ

At what moisture level does wood framing become a problem?

Wood moisture levels above approximately 18% can allow fungal growth to begin. Standing water or wet materials can allow microbial growth to begin in just 24 to 48 hours. ESG uses professional moisture meters to document readings and confirm materials are within acceptable ranges before enclosure.

When should ESG be called during a construction project?

ESG recommends two inspection phases: Phase 1 at rough-in (while framing is exposed and corrections are easy), and Phase 2 after the building is dried-in, enclosed, and conditioned with HVAC. Early engagement means any issues are identified before they become expensive post-occupancy problems.

Does ESG perform mold remediation if growth is found?

No. ESG tests and assesses only; we never remediate. This is a core principle: our independence ensures our findings are objective, with no financial incentive tied to the outcome. If fungal growth is identified, we document it and provide clear guidance so you can engage a qualified, separate contractor to address it.

What does the ESG report include?

Reports document moisture conditions at tested locations, any observed fungal growth or absence thereof, laboratory test results if samples were collected, and recommendations for corrective action when needed. Reports are prepared to be useful for builder warranties, quality control programs, insurance documentation, and legal protection.

Can ESG assist with moisture management practices on site?

Yes. In addition to testing, ESG can provide consultation on site moisture management, including guidance on storing lumber off the ground, protecting materials from rain, removing standing water promptly, using drying equipment after wet events, and monitoring moisture levels before installing finishes.

How does third-party documentation help in legal or insurance disputes?

Independent environmental inspections demonstrate that proper moisture management practices were followed and that conditions were monitored by qualified professionals. This documentation can reduce risk, support insurance claims, and is built to stand up to scrutiny in construction defect or buyer disputes. Call 336-373-1538 to discuss your project.

Reception area inside the ESG office in Greensboro NC
Certified inspectors. Peer-reviewed methods. Honest answers.

Schedule Your New Construction Moisture Testing

Protect your project before the walls close. Early testing is far less expensive than post-occupancy remediation, and the documentation lasts as long as the building does.

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