HVAC & Air Duct Mold Remediation in Baton Rouge, LA
A musty smell every time the air conditioning kicks on, black dust around the supply vents, mold visible on the coil or in the drain pan, or allergy symptoms that get worse indoors. An air-conditioning system in a Baton Rouge house runs sixteen hours a day for half the year, and the coil, the drain pan and the air handler stay wet the whole time. When mold gets started there, the system carries spores to every room it serves. HVAC mold remediation is cleaning the system and remediating the rooms it has affected, then fixing the drainage and humidity so it stays clean. Call (225) 422-7176.
Where mold grows in an air-conditioning system
The evaporator coil and drain pan. Always wet, dark, and full of dust from the filter. A blocked condensate drain leaves standing water in the pan and mold on the coil.
The air handler cabinet and blower. Insulation lining inside the cabinet holds moisture and dust; the blower wheel collects the growth and throws it into the ducts.
Flexible ducts and duct board. Sweating ducts in a hot attic, or leaks pulling humid attic air into the duct, wet the inside. Fibreglass duct board and dirty flex duct grow mold that cannot be cleaned and has to be replaced.
Supply and return vents. Black dust or fuzz around the grilles is the mold arriving in the room. Condensation on the grilles in summer feeds it.
Because the system moves air, mold in it shows up as a house-wide problem: several rooms, no obvious leak, symptoms that follow the air conditioning. The inspection includes the system when that is the pattern.
How the HVAC job goes
Inspect the system and the rooms. The coil, pan, cabinet, blower and a section of duct are opened and checked; air samples in the rooms served against an outdoor sample say how far it has spread.
Clean what can be cleaned. The coil, drain pan, cabinet and blower are cleaned with the system sealed off, and treated with an antimicrobial made for HVAC use. Sheet-metal duct runs are cleaned with agitation and a filtered vacuum.
Replace what cannot. Mouldy duct board, flex duct and cabinet lining are removed and replaced. This is done with the ducts sealed so the attic is not contaminated.
Remediate the rooms. Where spores have settled and grown on ceilings and walls near vents, those areas are remediated under containment. See mold remediation.
Fix the cause. Condensate drain cleared and trapped, the pan sloped, attic ducts insulated and sealed, a UV light at the coil where it helps, and the house humidity brought down with the right size of system or a dehumidifier.
Clearance. Air samples with the system running prove the house is clean. The whole job is usually three days to a week.
Duct cleaning is not the same as mold remediation
A duct-cleaning company vacuums dust out of the ducts. It does not open the air handler, treat the coil, replace mouldy duct board, remediate the rooms or test the air afterwards, and it does not fix the drainage that caused the mold. If the ducts are just dusty, duct cleaning is the right service and cheaper. If there is mold in the system, it is this job. The inspection tells you which.
What HVAC mold remediation costs in Baton Rouge
Cleaning and treating the coil, pan, cabinet and blower with the ducts cleaned is at the low end. A whole-house job with duct replacement and remediation of the rooms the system has affected runs $6,000 to $20,000 depending on the size of the system, how much duct is replaced and how many rooms are involved. Inspection first, $300 to $600, plus air samples at $50 to $100 each. Every price is on the cost page.
Prices on this page are estimates from previous work. We cannot quote an exact price. The actual cost can be lower or higher depending on the job. The person who knows is the professional who will do the work. You get a written quote after we see the house.
How to get started
Call (225) 422-7176 and tell us what you smell or see, which rooms, and how old the system is. We book the inspection and you get a written price for the system and the rooms. If you would rather write, use the callback form below or the contact page.
HVAC and duct mold questions
How do I know if the mold is in the air conditioner?
The smell comes and goes with the system, several rooms are affected with no leak in any of them, there is black dust around the vents, or you can see growth on the coil or in the pan. An inspection with air samples confirms it.
How much does HVAC mold remediation cost?
From a few thousand for cleaning and treating the system to $6,000 to $20,000 for a whole house with duct replacement and room remediation. Inspection first, then a written price.
Can a duct cleaning company fix it?
If it is dust, yes. If it is mold, no: they do not open and treat the air handler, replace mouldy duct board, remediate the rooms or test afterwards, and the drainage problem stays.
Should I keep running the air conditioning?
If you know there is mold in the system, run it as little as you can until it is cleaned, because every cycle spreads spores. In a Baton Rouge summer that is not realistic for long, so book the inspection quickly.
Will a UV light stop it coming back?
A UV light at the coil helps keep the coil clean. It does nothing for the ducts or the rooms, and it does not fix a blocked drain or a sweating duct. It is part of the fix, not the fix.
Do you do HVAC mold work in Denham Springs?
Yes. Baton Rouge, Baker, Central, Zachary, Denham Springs, Walker, Prairieville and Gonzales. Call (225) 422-7176.
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Musty air every time the AC runs?
Call (225) 422-7176. Inspection of the system and the rooms, written price, cleaned, replaced where needed, tested.
Call (225) 422-7176