NADCA-Aligned Duct Cleaning
Commercial air conveyance cleaning compliant with NADCA ACR standards. Source removal for hospitals, schools, and offices.
Supply Air Hygiene
Ductwork accumulates dust, construction debris, and microbial growth over time. Our process removes the source, not just the symptoms.
Particulate Load
Dust buildup reduces airflow and impacts sensitive equipment.
Mold Spores
Moisture in ducts can support fungal growth that spreads via supply air.
Airflow Balance
Debris blockage can cause uneven heating and cooling in zones.
Compliance
Meeting healthcare and educational standards for air cleanliness.
Source Removal Methodology
We do not just encapsulate dirt. We remove it using high-velocity negative air and mechanical agitation.
Negative Air Connection
Connecting high-volume vacuum trucks or portable collectors to the main trunk.
- Zone isolation
- Static pressure maintenance
- Contaminant capture
Mechanical Agitation
Using air whips, brushes, and skipper balls to dislodge debris.
- Compressed air whips
- Rotary brushing
- Robotic inspection
Component Cleaning
Cleaning registers, diffusers, VAV boxes, and reheat coils.
- Grille washing
- Turning vane cleaning
- Damper vacuuming
Verification
Post-cleaning visual inspection and optional surface testing.
- Before/After photos
- NADCA vacuum test
- Closeout report
NADCA
Standard of Care
Verified
Cleanliness Level
Measurable Performance Recovery
Clean ducts extend filter life, reduce dusting frequency in occupied spaces, and improve overall HVAC system hygiene.
Frequently Asked Questions
What is the difference between NADCA-aligned duct cleaning and standard duct cleaning?
NADCA ACR (Assessment, Cleaning, and Restoration) requires source removal—physically extracting contaminants using negative air and mechanical agitation—rather than simply blowing debris around. BAM follows this standard on every project, using vacuum trucks and rotary tools to verify measurable cleanliness levels with before-and-after documentation.
Does commercial duct cleaning disrupt building occupancy?
Typically, no. BAM isolates zones and maintains static pressure in active portions of the system while cleaning proceeds section by section. In hospitals and schools, we schedule work during off-hours or low-occupancy periods to eliminate noise and airflow disruption to occupied spaces.
Do you use chemical sealants or encapsulants inside ductwork?
BAM prioritizes physical source removal per NADCA standards. Chemical sealants are only applied when specifically requested or when remediation of non-porous interior surfaces is required. Encapsulants are never used as a substitute for removing the actual contaminant load from the duct system.
Can you clean fiber-lined or internally insulated ductwork?
Yes. BAM uses specialized soft-bristle brushes and controlled air-washing tools designed for fiber-lined ducts. These methods remove particulate without damaging the insulation surface. If the liner is deteriorated beyond cleaning, we document the condition and recommend encapsulation or replacement.
How often should commercial ductwork be professionally cleaned?
NADCA recommends assessment-driven intervals rather than fixed schedules. Most commercial facilities benefit from cleaning every 3–7 years, but healthcare and manufacturing environments with higher particulate loads may require shorter cycles. BAM performs a visual inspection and surface sampling to determine the appropriate timeline for your facility.
What documentation does BAM provide after a commercial duct cleaning?
Every project includes a complete closeout package with before-and-after photographs, a NADCA-standard vacuum test report, zone-by-zone scope verification, and a summary of any deficiencies found. This documentation satisfies Joint Commission, accreditation body, and internal audit requirements for healthcare and educational facilities.
Ready to Restore Performance?
Our restoration engineers are ready to evaluate your facility and provide a documented assessment.
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