How much does air duct cleaning cost?
Air duct cleaning often costs $450 - $1,000 for a whole-home job. Some companies quote by vent, commonly around $25 - $50 per supply vent, while others price by home size, access, contamination, and whether returns and the air handler are included.
Duct cleaning is worthwhile in specific situations: post-renovation dust, visible debris, pest contamination, suspected mold, heavy dust blowing from registers, or a dryer vent that also needs cleaning. It is not a cure-all for every allergy, odor, or HVAC problem.
Air duct cleaning cost by scope
Standard whole-home duct cleaning
$450 - $1,000How to tellSupply vents and returns need routine cleaning; no major contamination
The fixClean supply ducts, return ducts, registers, and accessible trunk lines with proper negative pressure
Per-vent pricing
$25 - $50/supply vent; returns may cost moreHow to tellQuote is based on number of supply vents and returns
The fixCount every supply register and return grille before comparing bids
Post-renovation dust
$500 - $1,200+How to tellDrywall, sanding, flooring, or remodeling dust reached the HVAC system
The fixClean ducts, registers, returns, and inspect filter/air-handler area
Mold, moisture, or pest contamination
$700 - $2,000+How to tellMusty smell, visible growth, droppings, nesting material, or moisture source
The fixIdentify source first, clean contaminated ducts, and handle remediation/HVAC repair if needed
Dryer vent add-on
$80 - $250+How to tellDryer takes too long, vent flap does not open, or lint builds up outside
The fixClean dryer vent separately or as a bundled indoor-air service
Before hiring an air duct cleaner
- Count supply vents and return vents so per-vent quotes are comparable.
- Ask whether the quote includes returns, registers, trunk lines, air-handler access, before/after photos, and dryer vent cleaning.
- Replace the HVAC filter and check whether dust is still blowing from registers after normal cleaning.
- If the issue is odor or moisture, look for the source first. Duct cleaning alone will not fix an active leak, mold source, pest opening, or HVAC problem.
Unlock the hiring checklist
Use this before you call an air duct cleaning, so you know what to ask and what to avoid.
Call a pro when…
- Renovation dust or visible debris is inside the duct system
- Dust blows from vents after the filter and housekeeping are addressed
- There are signs of pests, nesting material, droppings, mold, or moisture
- The dryer vent also appears clogged or unsafe
- You want documentation with before/after photos instead of a vague coupon cleaning
Repair or replace?
Clean ducts when contamination is accessible and the ductwork is intact. Repair or replace ductwork when ducts are crushed, disconnected, leaking heavily, moldy because of ongoing moisture, or made from deteriorated materials that cannot be cleaned safely. If airflow is weak, have HVAC performance checked before assuming cleaning is the fix.
Need a cleaner scope before you call around?
Use the air duct cleaning checklist to compare the same work, questions, cleanup, and warranty before choosing a local company.
Related questions
Is air duct cleaning worth it?
It can be worth it after remodeling, visible debris, pest contamination, moisture problems, or dryer-vent concerns. It is less convincing as a generic annual service for every home.
What should an air duct cleaning quote include?
It should specify supply vents, return vents, trunk lines, registers, access panels, cleaning method, containment, photos, and any exclusions such as mold remediation or HVAC repair.
Can duct cleaning fix a musty smell?
Only if dirty ducts are the source. A musty smell often points to moisture, mold, drain pans, crawlspace air, or duct leaks. Identify and fix the source before paying for cleaning alone.