The AHU conditions every cubic foot of air your building breathes. We restore the whole unit under HEPA containment, with the documentation demanding facilities require — in occupied buildings, nationwide.
The air handling unit is the mechanical heart of a commercial HVAC system. It draws in outside and return air, filters it, moves it across heating and cooling coils, and drives it through the ductwork to every occupied zone. Because 100% of the air your people breathe passes through this one enclosure, its internal condition sets the ceiling for the entire facility's indoor air quality.
When filters bypass, a cooling coil grows biofilm, or a condensate pan holds standing water, the contamination doesn't stay in the mechanical room — it is distributed building-wide within minutes of start-up. In a hospital wing, a lab, or a food-processing line, that isn't a housekeeping issue; it's an air-quality liability and a measurable drain on energy and capacity.
IAQ Restoration cleans commercial and industrial AHUs the way the standard intends — documented source removal under containment, not a wipe-down of whatever is reachable through the access door.
Mixing outside & return air · filtering it · heating and cooling it across the coils · moving it with the blower · draining the moisture it creates. Neglect any one and the other four suffer — which is why we clean and verify the whole unit, not just the coil face.
An AHU cleaning that skips the pan or the blower isn't a cleaning — it's a delay. Every internal component is inspected, cleaned and documented.
Fouled fins are the number-one cause of lost airflow and rising energy use. We wet-wash coil faces and depth to restore heat transfer and design static pressure.
Dust loads the blower wheel and throws it out of balance, quietly cutting delivered CFM. We clean the wheel, housing, shaft and motor compartment.
The wettest place in the system — and the most common microbial reservoir. We clean and flush the pan and drain line and confirm it actually drains.
Air takes the path of least resistance. We clean filter banks and seal the gaps that let unfiltered air skip the media entirely.
Outside-air and return dampers, linkages and economizers are cleaned so the unit ventilates and controls air the way it was engineered to.
Internal insulation and acoustic liner are inspected and HEPA-cleaned; degraded liner and failed door gaskets are photographed and flagged for repair.
We're built for the systems residential crews walk away from — the large, high-static, mission-critical units that run a facility.
ACR stands for Assessment, Cleaning & Restoration — the measurable standard we work and verify against on every unit.
We inspect coils, pan, blower and liner and capture baseline photos and coil pressure-drop before we touch anything.
We coordinate with your facilities team, place the unit under lockout/tagout, and stage containment safely.
The unit is placed under continuous HEPA-filtered negative pressure so nothing we loosen can migrate into the building.
Brushes and compressed air release debris from coils, blower and casing while it is vacuumed out at the source.
Coils, pan and drain are wet-cleaned with EPA-registered products; antimicrobial applied where mold or biofilm is found.
We confirm the result against the ACR Standard and hand you a photo-documented, audit-ready closeout package.
A wet, biologically fouled coil and pan send spores and odor into every zone the unit serves. Cleaning the source is what resolves tenant complaints and sick-building symptoms — fragrance in the vents only masks them.
A dirt film on a coil behaves like insulation, forcing longer run times and nuisance freeze-ups. EPA and DOE guidance tie fouled coils and restricted airflow to measurably higher HVAC energy use — clean coils routinely pay for themselves.
Every project closes with scope, before/after photos, methods and ACR verification — ready for EHS, Joint Commission, CMS and QA files. One report format across every site you run.
Two or more of these, and the unit is already affecting the space it serves.
A clean unit feeding dirty downstream components won't hold. Explore how the pieces connect — or start with the commercial air duct cleaning overview.
NADCA and ASHRAE guidance is inspection-based: assess the unit at least annually, then clean when the coil, pan or casing exceed cleanliness benchmarks or whenever moisture and microbial growth are present. In practice most commercial units are cleaned every 2–3 years, and sooner for healthcare, food service, high-humidity spaces, or after any water or mold event. We give you a condition-based schedule after the first inspection — not a guess.
We don't eyeball it. We clean to the NADCA ACR Standard, which defines "clean" as a measurable result — surface debris at or below 0.75 mg per 100 cm², confirmed by a vacuum test and documented with matched before/after photos for your records.
Yes — it's most of what we do. We work nights, weekends and phased zones under HEPA negative-pressure containment, coordinating pressure relationships so occupied areas, operating rooms and isolation rooms stay protected. The building is cleaner at 8 a.m. than we found it at 8 p.m.
Yes. We standardize scope, pricing and reporting across your entire portfolio under one program, with NADCA-certified crews mobilizing to every region of the country. Call 800-883-6040 to scope it.
NADCA-certified AHU cleaning, verified to the ACR Standard, documented for your files. Send us your mechanical plans or book a site walk — we'll scope it free.
📞 Call 800-883-6040 Request a Quote Online