Indoor Air Quality Assessment & Testing Services
Air quality plays a critical role in environmental compliance, human health, and project viability. Whether you are evaluating indoor air conditions in an occupied building, preparing air emissions permits for a facility, or maintaining compliance with federal and state regulations, understanding and managing air quality is essential. Poor air quality can affect employee health, public safety, regulatory standing, and a project’s ability to move forward.
CRB provides indoor air quality assessment and testing services for commercial and industrial buildings, helping identify potential air quality concerns related to mold, volatile organic compounds (VOCs), ventilation issues, and other environmental factors that may impact occupant health and building performance. At CRB, we help clients identify, evaluate, and manage air quality issues with technically sound, practical, and defensible solutions. From indoor air quality assessments to complex air emissions permitting and regulatory compliance, our approach connects technical data with meaningful interpretation so you understand not only what the results are, but what they mean for your project or facility.
Mold, Moisture Intrusion & Building-Related Concerns
Mold growth is one of the most common indoor air quality concerns, particularly in commercial buildings and multi-family properties where water intrusion, humidity, and HVAC performance can vary across units and spaces.
Our team evaluates:
Active and historical moisture intrusion
Roof, plumbing, and envelope-related water sources
HVAC system performance and condensation issues
Areas prone to elevated humidity or poor ventilation
Rather than relying solely on air sampling, we take a building science approach to understand why conditions exist and how to correct them.
We also coordinate targeted mold testing and sampling through our established network of qualified subcontractors nationwide, allowing us to support projects quickly and efficiently across multiple locations.
Odor Investigations & Sewer Gas Assessments
Odor complaints are one of the most frequent indoor air quality concerns reported by tenants and occupants.
CRB conducts detailed odor investigations to identify sources that may not be immediately visible, including:
Sewer gas intrusion from plumbing or dry traps
HVAC-related odor distribution
Organic or chemical sources within building materials
Moisture-related microbial growth
Sewer gas concerns, in particular, are a common issue in both commercial and residential buildings and can often be misdiagnosed without a structured investigation. Our approach focuses on isolating the source and providing clear recommendations to resolve the issue, not just documenting that it exists.
Vapor Intrusion & VOC Assessment
Vapor intrusion occurs when volatile chemicals migrate from subsurface soil or groundwater into indoor air. This is most commonly associated with properties that have a history of environmental impact, but it is also an important consideration for multi-family developments and redevelopment sites.
CRB evaluates:
Potential vapor intrusion pathways
Volatile Organic Compounds (VOCs) in indoor air
Subsurface conditions when applicable
Building-specific risk factors
These assessments are often performed as part of due diligence, but they are also critical when indoor air concerns arise in occupied buildings.
Indoor Air Quality Assessment and Testing
Who We Work With
CRB provides indoor air quality consulting services for a wide range of commercial and institutional clients. We understand the importance of responsiveness and discretion when air quality concerns impact occupants or operations.
Commercial property owners and managers
Office, retail, and mixed-use buildings
Industrial and manufacturing facilities
Schools, healthcare, and institutional properties
Real estate transactions requiring environmental review
The CRB Air Quality Assessment Process
CRB’s indoor air quality process is built to move beyond basic testing by combining site history, on-site investigation, and targeted sampling to identify the true source of air quality concerns. We provide clear, defensible findings along with practical recommendations that can be implemented efficiently within real-world building conditions.
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We begin by reviewing available background information to understand the full context of the concern. This includes building history, prior environmental reports, maintenance records, and any documented complaints from occupants.
We also evaluate factors such as historical water intrusion, prior mold issues, HVAC system performance, and known environmental conditions that may influence indoor air quality. This step allows us to develop a focused, efficient investigation strategy rather than approaching the project without direction.
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Our team conducts a detailed on-site assessment of the property, with a focus on identifying conditions that contribute to indoor air quality concerns. This includes evaluating moisture intrusion pathways, ventilation and HVAC performance, building envelope conditions, and areas where contaminants may accumulate or migrate.
We pay particular attention to real-world building use and occupancy patterns, which often play a critical role in odor complaints, mold growth, and air quality concerns in commercial and multi-family environments.
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When appropriate, we perform or coordinate targeted sampling to support our observations and develop defensible conclusions. This may include indoor air sampling, surface sampling, moisture mapping, or material testing depending on site conditions.
Rather than relying on sampling alone, we use testing strategically to confirm sources, differentiate between potential causes, and support clear decision-making. Through our nationwide network, we are also able to quickly coordinate mold and air quality testing across multiple locations when needed.
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Our findings are evaluated in the context of the building as a whole, not just isolated data points. We interpret results alongside site conditions, building systems, and observed deficiencies to identify the most likely source of the issue.
CRB provides practical, cost-conscious recommendations that are designed to resolve the problem, not just document it. Our reports are clear, defensible, and structured to support property managers, owners, and stakeholders in making informed decisions and taking the next steps toward resolution.
Air quality issues can affect health, compliance, operations, and project approvals.
Talk to a CRB environmental professional today and get the data you need to move forward with confidence.
Ready to Address Air Quality and Regulatory Risk?
Frequently Asked Questions
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Indoor air quality (IAQ) testing evaluates the quality of air inside buildings to identify potential health or comfort concerns such as mold spores, volatile organic compounds (VOCs), odors, carbon monoxide, radon, or other contaminants.
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IAQ testing is often performed when occupants experience health symptoms (allergies, headaches) odors, or moisture issues, after water damage, before occupancy, during real estate transactions, or when there are concerns about mold, ventilation, or chemical exposure.
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Many industrial, manufacturing, and commercial facilities require air permits depending on equipment type, fuel usage, and emission levels. CRB helps determine whether your facility requires a permit and which regulations apply.
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CRB provides:
Indoor air quality (IAQ) assessments
Mold, VOC, odor, and radon evaluations
Air emissions permitting
Title V permitting support
Air compliance audits
Emissions calculations and reporting
Air dispersion modeling
Regulatory agency coordination
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Indoor air quality assessments can often be completed within days while permitting and regulatory projects may take weeks depending on complexity and agency review timelines.