— Service · HVAC & Ductwork Inspection
HVAC & Ductwork Inspection
across LA.
HVAC systems are the single most common reservoir of indoor mold growth and the single most efficient distribution mechanism for spores throughout a building. Mold X performs targeted HVAC moisture and microbial assessment including evaporator coils, condensate pans and drain lines, supply and return duct interiors, plenums, and air-handler closets — the full path moisture and biological contamination travels.
— Applications
Specialty applications
Each property type carries its own moisture profile. Below are the contexts in which we apply this service.
Evaporator Coil Inspection
Direct visual and surface-sampling assessment of cooling coils for biofilm and microbial colonization.
Condensate Pan & Drain Line
Pan, trap, and drain line assessment for standing water, biofilm, and overflow risk.
Supply & Return Duct Sampling
Interior duct surface and air sampling at multiple registers across all HVAC zones.
Plenum & Air Handler
Mechanical-room and air-handler enclosure assessment for moisture intrusion and microbial growth.
Filter & Filtration Audit
MERV rating, sealing, and bypass assessment to identify filtration failures.
Pressurization & Ventilation
Building pressure mapping to identify negative-pressure zones drawing unconditioned moist air.
— Benefits
Why owners and agents choose us.
- Diagnoses the source, not just the symptom
- Pre and post-cleaning verification testing available
- Coordination with HVAC contractors when remediation is indicated
- Suitable for residential, commercial, and multifamily systems
— The Protocol
The protocol.
- 01
System Map
Document HVAC zones, equipment, and duct runs before sampling.
- 02
Equipment Inspection
Visual and instrument assessment of coils, pans, and air handlers.
- 03
Multi-Zone Sampling
Air sampling at multiple supply and return registers per zone.
- 04
Lab Analysis
Genus identification with comparison to outdoor baseline and indoor norms.
- 05
Reporting
Zone-by-zone findings with prioritized cleaning and remediation recommendations.
— Scope of Work
What is included, what is not.
Independence requires a clear line. Here is exactly where ours runs.
Included in this engagement
- Diagnoses the source, not just the symptom
- Pre and post-cleaning verification testing available
- Coordination with HVAC contractors when remediation is indicated
- Suitable for residential, commercial, and multifamily systems
- Written report organized for the agreed scope and authorized recipients
- Direct phone access to the inspecting environmental professional
Not part of our practice
- Mold remediation or removal work
- Drywall, flooring, or material replacement
- HVAC duct cleaning or component replacement
- Plumbing repair or supply-line replacement
- Roofing repair or waterproofing application
- Sales of remediation or air-purification products
If your report identifies remediation as necessary, we provide a remediation scope written in industry-standard language so any qualified contractor can bid the same defined work.
— Pricing & Turnaround
Scope first, then price.
Standard residential pricing is $199 for the initial inspection or $349 with two inspector-selected laboratory samples; additional samples are $99 each. Large homes, commercial properties, and specialty services require a custom quote.
Availability review
Scheduling is confirmed based on location, access, scope, and current availability.
Clear timing
Requested written reports or recommendations are emailed within 24 hours after inspection. Laboratory results are normally available approximately 24 hours after lab delivery; no rush laboratory processing is offered.
Laboratory timing
Results are normally available approximately 24 hours after samples reach the laboratory. Sunday closure can delay weekend samples. Rush laboratory processing is not offered.
Written estimate
The estimate identifies the planned inspection and sampling scope before booking.
— Coverage
HVAC & Ductwork Inspection across Los Angeles.
Same protocol, every city. Below is a sample of cities we serve — see the full list on our locations hub.
— Standards
Credentials carried into every hvac & ductwork inspection
— Standards & Authority
Operating to the standards that define the field.
IICRC
ACAC
EPA
OSHA
CMI
CMA
IEP
AIHA
Every Mold X engagement references and complies with the published standards above. Sample analysis is performed exclusively by AIHA-LAP accredited laboratories.
HVAC & Ductwork Inspection — Frequently Asked Questions
— Continue Exploring
Other services
Mold Inspection
Comprehensive visual and technical assessment for residential and commercial properties.
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Mold Testing
Laboratory analysis of air and surface samples to identify mold species and concentration.
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Moisture Detection
Advanced thermal imaging to locate hidden water intrusion and leak sources.
Learn more