How Much Does Air Duct Cleaning Cost? (2026 Price Guide)
Dusty vents, allergies, or musty smells from the AC? Compare duct cleaning quotes and avoid the $99 bait-and-switch pricing games.
Air Duct Cleaning price ranges
National ranges compiled from contractor pricing data
Project
Typical price range
Whole-home duct cleaning
$350 – $700
Larger homes / multiple systems
$500 – $1,000
Dryer vent cleaning
$100 – $200
Duct sanitizing add-on
$75 – $250
These are national ranges. Your quote depends on local labor rates, material choices, access, and current demand — which is exactly why comparing at least two quotes from licensed local pros is the single most effective savings move a homeowner can make. On mid-size projects, the spread between the highest and lowest quote is routinely 20–40%.
What drives the price
Full HVAC duct cleaning — scope and materials here shift the final quote more than most homeowners expect.
Dryer vent cleaning — scope and materials here shift the final quote more than most homeowners expect.
Sanitizing & deodorizing — scope and materials here shift the final quote more than most homeowners expect.
Mold treatment in ducts — scope and materials here shift the final quote more than most homeowners expect.
How to keep the cost down
Compare multiple quotes. Two to three quotes from licensed pros is the baseline. The savings usually dwarf any other tactic on this list.
Get the scope in writing. An itemized quote — materials, labor, disposal, permits — prevents mid-project price creep.
Time it right. Off-peak scheduling (shoulder seasons for most trades) often earns a lower price for the identical job.
Ask about warranty terms. A slightly higher quote with a strong transferable warranty is often the better total cost of ownership.
Frequently asked questions
How much does air duct cleaning cost?
Legitimate whole-home cleaning runs $350–$700. Be wary of $99 specials — they're usually upsell traps. A written quote covering all vents, returns, and the trunk line protects your price.
How often should ducts be cleaned?
Every 3–5 years for most homes — sooner after renovations, water damage, pest issues, or if you have shedding pets or allergy sufferers.
Does duct cleaning help with allergies?
Removing accumulated dust, dander, and debris measurably reduces circulating particulates, especially when paired with filter upgrades.
Why clean the dryer vent too?
Lint-clogged dryer vents cause thousands of house fires yearly and add drying time to every load — a $100–$200 cleaning pays for itself in energy savings.
The three pricing models — and why two quotes differ by $400
Most of the confusion around duct cleaning prices comes from companies
quoting on different models rather than one of them overcharging. Work out
which model you are being quoted on before you compare two numbers.
How duct cleaning is priced
Model
Typical rate
What to watch for
Per vent
$25 – $50 per vent, about $35 typical
Count supply and return vents before calling. A quote priced on supply vents alone comes in low and rises on site.
Per square foot
$0.15 – $0.40 per sq ft
Ask whether the rate covers the trunk line and plenum or only the branch runs.
Flat rate per system
$400 – $1,000 per HVAC system
Easiest model to compare. Confirm the system count — a two-system home is two prices.
Hourly
$90 – $125 per hour
Uncommon for residential work and hard to compare. Ask for a not-to-exceed figure.
Ranges reflect figures published by NADCA and the EPA
alongside contractor-reported data from Angi, HomeGuide and This Old House.
Your quote is confirmed on site.
The $99 whole-house quote, explained
It is the most common complaint in this trade and it works the same way
in every market. The advertised price covers pulling a vacuum at the
registers. It does not cover the trunk line, the return, the plenum, or
opening the air handler — which is where the material that actually affects
your air is sitting. The upsell happens once the crew is already in your
home and the system is open.
A quote worth accepting states, in writing:
The number of supply and return vents included
Whether the main trunk line and plenum are cleaned
Whether the blower wheel and evaporator coil are accessed
The separate price of any sanitising or antimicrobial treatment
If a quote does not put those four items on paper, it is not really a
price — it is an appointment.
Licensing and certification
NADCA — the National Air Duct Cleaners Association — certifies technicians
as Air Systems Cleaning Specialists against a published cleaning standard.
The certification is voluntary rather than legally required, but it is the
closest thing the trade has to a national benchmark.
State licensing is a separate question and follows no national pattern.
Texas requires an Air Conditioning Contractor licence — a TACL number, issued
by the Texas Department of Licensing and Regulation under Chapter 1302 of the
Texas Occupations Code — for any company that opens the air handler and
cleans the mechanical components. Florida licenses HVAC contractors through
the Department of Business and Professional Regulation under Chapter 489 of
the Florida Statutes. Many other states, Colorado among them, have no
duct-cleaning-specific licence at all, which makes NADCA membership and proof
of liability insurance the things worth verifying.
Is duct cleaning worth it?
The EPA's position is worth knowing before you spend the money: routine
cleaning has not been demonstrated to prevent health problems in a system
that is otherwise clean and dry. The EPA does recommend cleaning where there
is visible mould growth inside the ductwork or on other system components,
where there is vermin infestation, or where ducts are clogged with enough
debris that particles are actually discharged from the registers.
In practice the clearest cases are renovation dust, water intrusion, pest
activity, and buying a home with unknown system history. A system that has
none of those and gets its filters changed on schedule usually does not need
the service on a fixed calendar.
Air duct cleaning costs by city
Ductwork runs through the attic in most Sun Belt markets and through the
basement across much of the Midwest, and that difference in access changes
both the labour and the price for an otherwise identical home. City guides
covering local housing stock, climate factors and state licensing: