How do you remove mold in air ducts? HVAC mold removal starts with an inspection of the air handler, coil, drain pan, supply and return ducts and vents. Technicians then clean or replace moldy components, HEPA-vacuum ductwork, treat surfaces and fix the condensation or humidity problem. Most HVAC and air duct mold jobs in Cary cost $600 to $3,000.
Why Mold Grows in HVAC Systems
Air conditioners pull moisture out of the air, which collects on the evaporator coil and drains through a pan. In Cary’s long, humid cooling season, that system is wet for months. A clogged drain line, dirty coil, leaky ducts in a hot attic or crawl space, or an oversized unit that doesn’t run long enough to dehumidify can all lead to mold growth inside the system.
Signs of Mold in Your HVAC System
- Musty or “dirty socks” smell when the AC turns on
- Black spots around supply vents or return grilles
- Visible mold on the air handler, coil or drain pan
- Allergy symptoms that get worse when the system runs
- Condensation dripping from ducts or vents
What Our HVAC Mold Removal Covers
- Air handler cabinet and blower
- Evaporator coil and drain pan
- Supply and return ductwork (cleaning or replacing flex duct where needed)
- Vents, registers and grilles
- Moisture source: drain line, duct insulation, humidity
We focus on mold in your HVAC system, not general duct cleaning or HVAC repairs. If ducts run through a moldy crawl space, we’ll also check crawl space mold.
Our HVAC & Air Duct Mold Removal Process
- Inspection of the full system and nearby areas.
- System shutdown and containment of vents and work areas.
- Cleaning of the air handler, coil and drain pan.
- HEPA duct cleaning or replacement of contaminated flex duct.
- Antimicrobial treatment approved for HVAC use.
- Moisture fix and final check of airflow and odors.
HVAC Mold Removal Cost in Cary
| Job | Typical range |
|---|---|
| Vents and registers only | $300 – $600 |
| Air handler, coil and drain pan | $600 – $1,500 |
| Full system incl. ductwork | $1,500 – $3,000+ |
General ranges, not a quote.
How to Prevent Mold in Your AC
- Change filters every 1–3 months
- Keep the condensate drain line clear
- Keep indoor humidity between 40% and 55%
- Seal and insulate ducts in attics and crawl spaces
- Have the coil and drain pan checked during routine service
FAQs
HVAC & Air Duct Mold FAQs
Breathe Cleaner Air at Home
Call (984) 306-0120 to have your HVAC system checked for mold in Cary.