Dryer vent cleaning: what it is, when you need it, what to ask for
Updated Sep 2026·National·Cleaning
What is dryer vent cleaning?
Dryer vent cleaning pulls lint out of the duct from the dryer to the outside hood, and checks the hood flap afterwards. Chimney companies sell it because it is the same trade — a duct, a brush, a vacuum — and because a blocked dryer duct is a fire risk in its own right.
It is not chimney work and belongs on its own line of the invoice.
When is it actually needed?
Yearly for a household dryer, sooner if clothes take two cycles to dry or the outside flap no longer opens.
What standard does it answer to?
NATIONAL · IRCNATIONAL · MANUFACTURER INSTRUCTIONS
- The International Residential Code (IRC) — the model building code for one- and two-family homes, adopted and often amended state by state and city by city.
- The manufacturer's installation and service instructions — for a listed appliance or component, they are the specification it was tested to.
What should the invoice or report show?
Ask to see the lint that came out and the outside hood opening, and ask about the duct's length and bends if the dryer has never dried well.
What does it cost?
- Low
- $100
- Median
- $150
- High
- $250
- Unit
- per job
How we researched this · 4 sources
Low, median and high are drawn from 4 published sources (3 published cost guides, 1 company price page), checked Jul 2026. This is a national range, not a quote and not data from listings on this site. Region, roof pitch, access and what an inspection finds all move the real price.
Does your state regulate this?
The IRC is a national model document, not state law: which edition applies to your home, if any, depends on the codes your state and city have adopted. Manufacturer instructions travel with the product: they set its requirements wherever it is installed, separately from the building code. Few jurisdictions name chimney or hearth work in a credential at all; the rule that usually touches a job like this is about the company — a general contractor or home-improvement license or registration where the state has one, sometimes only above a dollar threshold. Our 50-state laws table and licensing by state set out what each state requires.
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Questions about dryer vent cleaning
When is dryer vent cleaning needed?
Yearly for a household dryer, sooner if clothes take two cycles to dry or the outside flap no longer opens. The work answers to the IRC and the manufacturer's instructions.
Is dryer vent cleaning regulated by state law?
The IRC is a national model document, not state law: which edition applies to your home, if any, depends on the codes your state and city have adopted. Manufacturer instructions travel with the product: they set its requirements wherever it is installed, separately from the building code. Few jurisdictions name chimney or hearth work in a credential at all; the rule that usually touches a job like this is about the company — a general contractor or home-improvement license or registration where the state has one, sometimes only above a dollar threshold. Our 50-state laws table and licensing by state set out what each state requires.
What should I ask before agreeing to dryer vent cleaning?
Ask to see the lint that came out and the outside hood opening, and ask about the duct's length and bends if the dryer has never dried well.