Indoor Environmental Quality & Building Health Services
ETC provides indoor environmental quality and building health assessments for commercial properties, schools, healthcare facilities, multi-unit housing, and public buildings. We evaluate air, water, and building systems to identify conditions that may affect occupant health, regulatory compliance, or long-term building performance. Our services support facility managers, property owners, developers, and public agencies in documenting environmental conditions and addressing concerns before occupancy, certification, or renovation.
Comprehensive Indoor Environmental Services
Explore each service below for a detailed breakdown of scope, process, and regulatory context.
Indoor Air Quality (IAQ) Assessments
Inspection and sampling services to evaluate ventilation, airborne contaminants, moisture conditions, and other factors that impact occupant comfort and health.
Radon Assessments & Clearances
Short- and long-term radon testing conducted in accordance with state and federal guidance, including clearance testing following mitigation.
Drinking Water Sampling & Compliance
Water sampling programs designed to evaluate lead, copper, and other regulated contaminants in support of school, municipal, and facility compliance requirements.
Pre-Occupancy Testing & Certification
Air and surface testing conducted prior to building turnover or re-occupancy to document environmental conditions following construction, renovation, or remediation.
LEED & Fitwel Post-Construction Verification
Testing and documentation services that support indoor air quality credit requirements under LEED and Fitwel building certification programs.
Operation & Maintenance (O&M) Plans
Development of written plans outlining procedures for managing environmental conditions, monitoring systems, and maintaining compliance over time.
Combustion & Ventilation Assessments
Evaluation of combustion appliances, ventilation systems, and air exchange performance to identify potential safety or indoor air quality concerns.
Real projects, real timelines, real impact.
- All
- Environmental Services
- Environmental Site Assessments (Phase I & II)
- Industrial Hygiene
- State & Local

