For Builders & Developers

Build right the first time. Test before it's a callback

New construction moisture testing, duct and blower door testing, PRV clearance, and LEED v4.1 IAQ support. ESG coordinates testing around your build schedule and gives you documentation built to stand up to scrutiny.

Schedule Construction Testing Call 336-373-1538
LEED v4.1 IAQ testing New construction specialists No remediation conflict Serving NC, VA & TN
ESG field technicians carrying testing equipment on an active North Carolina construction site
What builders rely on ESG to deliver
23+
Years independent, since 2002
LEED
v4.1 IAQ testing & documentation support
4
Key construction phase checkpoints we cover
A+
BBB rating, accredited business

Building a LEED-certified project? ESG provides construction IAQ testing and documentation that supports LEED v4.1 EQ credit submittals, coordinated around your punch list and occupancy schedule. Credit decisions rest with the certifying body.

Where we fit in your project

Testing that works around your timeline

ESG testing milestones are designed to fit the construction schedule. Here are the most common situations we handle for builders.

Framing and insulation going in

Pre-drywall moisture testing catches elevated readings before they're locked behind walls. A moisture issue discovered at this stage is typically far less costly to address than a warranty callback after occupancy.

Pursuing LEED certification

ESG provides construction IAQ testing and pre-occupancy air quality sampling that supports documentation for LEED v4.1 Indoor Environmental Quality (EQ) credits.

Duct system installed and ready for mechanical testing

Blower door and duct leakage testing measures whether the building envelope and mechanical system perform to spec before drywall or final finishes. Catch failures before they're buried.

Services for builders & developers

Every test, every phase of construction

From foundation to final walkthrough, ESG has the testing services that document moisture, envelope, and air quality performance at each phase, and support your code compliance and LEED documentation.

New construction moisture & mold prevention testing

Pre-drywall moisture readings across framing, subfloor, and sheathing. Catch elevated moisture before it's sealed in, while it is still straightforward to dry or correct.

Learn about construction moisture testing

Blower door & duct leakage testing

Building envelope air tightness and duct system leakage testing per ASHRAE and RESNET standards. Required for many energy codes and LEED projects, and essential to documenting mechanical system performance.

Learn about blower door testing

LEED v4.1 indoor air quality testing

Pre-occupancy air quality sampling and construction IAQ management plan support for LEED v4.1 EQ credits. Reports are prepared for your project team to include in its credit submittal, and credit decisions rest with the certifying body.

Learn about LEED IAQ testing

Post-remediation verification (PRV)

When moisture or mold is discovered and remediated during construction, ESG independently evaluates the designated remediation area against applicable clearance criteria at the time of inspection, before the work is enclosed.

Learn about PRV
ESG inspectors walking a new construction site in the Piedmont Triad with sampling equipment
On site at the right milestones: pre-drywall, rough mechanical, and pre-occupancy.
Why ESG

Testing that keeps pace with construction, not the other way around

Builders need environmental testing that fits the schedule. ESG coordinates directly with your superintendents and project managers to hit the right windows: pre-drywall, rough mechanical, and pre-occupancy.

Technical reports receive review appropriate to the service and scope before delivery, with documentation built to stand up to scrutiny. 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: if we flag a problem, it is because the data shows one, not because we want to sell you a remediation contract.

Schedule Construction Testing
2002
Founded, 23+ years of independent testing
LEED
v4.1 IAQ testing & documentation support
0
Remediation services offered. Evaluation stays separate from corrective work
NC, VA & TN
States we serve
The process

Testing milestones that fit your schedule

ESG's construction testing follows the natural phases of the build, so testing happens at the right point in the schedule.

1

Pre-drywall moisture check

We test framing, sheathing, and subfloor moisture levels before walls are closed. Any elevated readings are documented and flagged while the assembly is still open.

2

Rough mechanical & envelope testing

Blower door and duct leakage testing after mechanical rough-in measures system performance against code and LEED requirements before finishes are applied.

3

Pre-occupancy IAQ sampling

Final air quality sampling documents indoor air quality conditions at the time of testing, before keys are handed to the buyer or tenant. Commonly required for LEED EQ credits.

4

Documentation package delivered

All testing reports, lab results, and LEED-formatted documentation delivered in a single package for your team to use in code review, credit submittals, or buyer disclosure.

The cost of skipping testing

Tested build vs. untested build

With ESG construction testing

Problems are caught at the cheapest possible moment: during construction, before walls are closed and finishes are applied. Your documentation package records the conditions measured at each phase.

  • Moisture issues caught before drywall goes up
  • LEED IAQ testing documented for your credit submittal
  • Phase-by-phase documentation on file
  • Mechanical system performance measured against spec

Without construction testing

Moisture issues, duct leakage, and IAQ problems discovered after occupancy are typically far more expensive to address, and can lead to warranty claims, litigation, and reputational damage.

  • Mold behind walls discovered after move-in
  • LEED credits unavailable without testing records
  • Costly warranty remediation and callbacks
  • No documentation to defend against claims
Construction blueprints and moisture testing tools laid out for an ESG pre-drywall inspection in North Carolina
Every milestone documented, from framing moisture readings to pre-occupancy air sampling.
Common questions

Builder & developer FAQs

When in the construction schedule should I bring in ESG?

The most valuable windows are pre-drywall (framing moisture check), after rough mechanical (blower door and duct testing), and pre-occupancy (final IAQ sampling). Contact us early to plan testing milestones into your schedule, not around it.

What does a blower door test actually measure?

A blower door test measures the airtightness of the building envelope by depressurizing the structure and measuring airflow. Duct leakage testing checks how much conditioned air is lost through duct system leaks. Both are required for many energy codes and LEED projects.

What does ESG deliver for LEED IAQ credits?

We provide pre-occupancy IAQ test results and supporting test documentation for LEED v4.1 EQ credits. We're familiar with LEED v4.1 EQ prerequisites and credit requirements and can help you understand what testing may be needed for your project. Credit decisions rest with the certifying body.

Can ESG handle testing across multiple active job sites?

Yes. We regularly work with builders who have multiple projects at various stages. Coordinating across sites with your superintendents is standard practice for us. Contact us to discuss your project pipeline.

What happens if moisture or mold is found during construction?

We document the findings and provide clear guidance on what type of remediation or drying is required. After remediation, we perform independent PRV testing that evaluates the designated remediation area against applicable clearance criteria at the time of inspection, before the work is enclosed. Because we never perform remediation, we have no financial incentive to inflate or minimize a finding.

Do you serve both residential and commercial construction?

Yes. ESG serves single-family residential, multifamily, light commercial, and institutional construction projects across NC, VA, and TN. Service scope and testing protocols vary by project type. Call us to discuss your specific project.

Reception area of the Environmental Solutions Group office in Greensboro, North Carolina
Certified inspectors. Documented methods. Honest answers.

Document your build before problems get buried

Schedule moisture, mechanical, and IAQ testing that integrates into your construction timeline, and gives you the documentation you need at every phase.

Schedule Construction Testing Learn About Our Services

Or call us directly: 336-373-1538