# How to start a dryer vent cleaning business: fire data, certification, equipment and pricing

> To learn how to start a dryer vent cleaning business, start with the reason homeowners pay: lint buildup causes dryer fires, and the U.S. Fire Administration found failure to clean was the leading factor. Then get trained and certified, buy a rotary brush kit and airflow tools, insure the business, price a flat rate per vent, and build steady work from yearly reminders and property managers.

Published 2026-10-15 by Broombook · Specialty cleaning services · 11 min read  
Canonical page: https://broombook.com/guides/how-to-start-a-dryer-vent-cleaning-business

## Key takeaways

- U.S. Fire Administration data put residential clothes dryer fires at about 2,900 a year, with failure to clean the leading factor at 34 percent.
- The USFA tells homeowners to clean the dryer vent ductwork every year, which is your built-in reason for annual reminders.
- CSIA calls its Certified Dryer Exhaust Technician (CDET) the only nationally recognized credential for dryer vent cleaning; one route is a three-day workshop.
- A flat rate per vent is the simplest way to price, with add-ons for roof terminations, long runs, nests and new transition ducts.
- Apartment complexes, property managers and home inspectors bring repeat volume that single homes can’t.

## What does a dryer vent cleaning business do?

A dryer vent cleaning business clears lint and debris out of the duct that carries hot, moist air from a clothes dryer to the outside, checks that air flows freely, and fixes simple problems like crushed transition hoses and clogged exterior covers. A single-home job is short, and longer for roof terminations and long runs.

A standard visit usually covers:

- **Check the dryer and the exterior vent.** Note drying times, look at the outside cover with the dryer running, and check for damage.
- **Pull the dryer out and disconnect it** from the duct, protecting the floor.
- **Clean the full run** with a rotary brush, from inside, outside or both, while a vacuum or blower captures the lint.
- **Clean the transition duct**, the short piece behind the dryer, or replace it if it is plastic, foil or crushed.
- **Clean the exterior cover** and remove any nest or screen clogged with lint.
- **Reconnect and test.** Run the dryer, confirm strong airflow at the outside cover, and record before and after readings and photos.

### Common add-on services

- Replacing plastic or foil transition ducts with metal
- New exterior vent covers and pest guards
- Bird and rodent nest removal
- Cleaning lint from inside the dryer cabinet, if you are trained and the manufacturer allows it
- Rerouting overly long or poorly installed ducts, which may need a licensed mechanical contractor and a permit where you work

## Why do homeowners pay for dryer vent cleaning?

Because blocked dryer vents cause fires, waste energy and wear out dryers. The fire risk is the strongest reason, and the federal data backs it up, which makes your marketing honest and simple.

### What the fire data says

The U.S. Fire Administration’s topical report on [clothes dryer fires in residential buildings](https://www.usfa.fema.gov/downloads/pdf/statistics/v13i7.pdf), covering 2008 to 2010, estimated that about 2,900 clothes dryer fires in residential buildings were reported to fire departments each year, causing an estimated 5 deaths, 100 injuries and $35 million in property loss. The same report found:

- Failure to clean was the leading factor contributing to ignition, at 34 percent.
- Dust, fiber and lint were the leading items first ignited, at 28 percent.
- The fires were more common in fall and winter, peaking in January at 11 percent.
- One- and two-family homes accounted for 77 percent, and multifamily buildings for 17 percent.

The report also explains why: lint is highly combustible, it builds up in both the dryer and the vent, and blockages from bird or animal nests or damaged venting keep the dryer from exhausting properly, which can lead to overheating. The data is older, so present it as what it is, a federal analysis of reported fires, and don’t inflate it.

### What the government tells homeowners to do

The USFA’s [basement and garage fire safety tips](https://www.usfa.fema.gov/prevention/home-fires/prevent-fires/basement-and-garage/index.html) tell homeowners to clean the lint filter every time they use the dryer and to clean the dryer vent ductwork every year. The Consumer Product Safety Commission’s [overheated clothes dryers safety alert](https://www.cpsc.gov/s3fs-public/5022.pdf) adds the warning signs to share with clients: clothes still damp after a normal cycle or drying taking longer than usual can mean the lint screen or exhaust duct is blocked. CPSC also recommends replacing plastic or foil accordion ducts with rigid or corrugated semi-rigid metal duct, which most manufacturers specify, because flexible plastic and foil trap more lint and crush more easily.

Those three points, yearly cleaning, the warning signs and metal duct, are the backbone of your website, flyers and service reports.

## Do you need a license or certification to clean dryer vents?

In most places there is no license specific to dryer vent cleaning, but you still need a general business license, and work beyond cleaning, like rerouting ducts or touching gas lines, can require a licensed contractor. A trade certification is not usually required by law, but it is how most new owners learn the work and earn trust.

### CSIA Certified Dryer Exhaust Technician

The Chimney Safety Institute of America runs the [Certified Dryer Exhaust Technician (CDET) credential](https://www.csia.org/certified-dryer-tech), which it describes as the only nationally recognized credential for dryer vent cleaning. There are three routes: a hands-on workshop at CSIA’s training campus that ends with the exam, which CSIA describes as three days; a one-day in-person review followed by the exam; or self-study with the CDET manual and an optional online review before scheduling the exam. Certified technicians are listed on CSIA’s website, which homeowners use to find a pro. The credential must be renewed, so check CSIA’s current renewal options and fees.

### If you also want to clean air ducts

HVAC air duct cleaning is a different job with different equipment. The National Air Duct Cleaners Association runs the [Air Systems Cleaning Specialist (ASCS)](https://nadca.com/hvac-certification-education-training/air-systems-cleaning-specialist-ascs) certification for that work. Many companies offer both, but train for each separately. Our guide to starting an [air duct cleaning business](https://broombook.com/guides/air-duct-cleaning-business) covers the equipment, the EPA guidance and pricing.

### Gas dryers and code work

- **Gas lines.** Moving a gas dryer means disconnecting and reconnecting a gas connector. Some states and cities limit gas work to licensed plumbers or gas fitters. Check your rules, and if you do reconnect, leak-test every time.
- **Duct changes.** Residential mechanical codes and the dryer’s installation instructions limit duct material, length and the number of bends. Replacing a transition hose is routine; rerouting a run through walls or a roof can require a permit or a licensed mechanical contractor.
- **General registration.** The basic steps any service business takes are in [what licenses are needed to start a cleaning business](https://broombook.com/guides/cleaning-business-license).

## How to start a dryer vent cleaning business, step by step

Get trained, register and insure the business, buy a rotary brush kit and airflow tools, set a flat price list, and line up a few property managers or inspectors who can send steady work. You can start solo with a car or small van.

1. **Train and certify.** Take the CDET route that fits you, and ride along with an experienced tech if you can.
2. **Register the business.** Pick a name, register it, get an EIN, which the IRS issues [free online](https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-number-ein-online), and open a business bank account. See [LLC for a cleaning business](https://broombook.com/guides/llc-for-cleaning-business) for the entity choice and [our startup guide](https://broombook.com/guides/how-to-start-a-cleaning-business) for the general order.
3. **Insure it.** General liability is the base. Tell the agent you move appliances, disconnect gas dryers and sometimes work on roofs, and ask how damage to the dryer, the floor or a gas connection is handled. Our [cleaning business insurance guide](https://broombook.com/guides/cleaning-business-insurance) explains the policy types.
4. **Buy your kit.** See the list below.
5. **Write a short service agreement** that covers what a cleaning includes, what you won’t touch, and how you handle problems you find. Adapt the [cleaning contract template](https://broombook.com/tools/cleaning-contract-template).
6. **Set your price list** as shown in the pricing section.
7. **Build referral partners** before you spend on ads.

### Equipment for a one-person start

| Item | Why you need it |
| --- | --- |
| Rotary brush kit with flexible rods and a drill, plus brushes in common duct sizes | Breaks lint loose along the full run, including bends |
| Vacuum with HEPA filtration or a high-flow blower | Captures the lint instead of blowing it into the laundry room |
| Airflow meter (anemometer) and an inspection camera | Before and after readings and proof of what you found |
| Metal transition ducts, clamps, foil tape and exterior covers | The parts you replace on most jobs |
| Appliance slides and floor protection | Moves dryers without scratching floors |
| Gas leak detector solution or an electronic detector | Testing gas connections after reconnecting |
| Fiberglass ladder, and fall protection if you will work on roofs | Second-story and roof terminations |
| Dust masks, gloves and eye protection | Lint, dust, droppings and nest debris |

### Roof terminations

Many vents end on the roof. Follow OSHA’s [portable ladder safety rules](https://www.osha.gov/sites/default/files/publications/PORTABLE_LADDER_QC.pdf) every time: the base a quarter of the working length out, the ladder at least 3 feet above the roof edge, and three points of contact. Once you have employees, OSHA’s walking-working surfaces rule, [29 CFR 1910.28](https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.28), requires fall protection for workers on surfaces with an unprotected edge 4 feet or more above a lower level, subject to the rule’s exceptions. Decide in writing which roofs you will and won’t walk, and charge for the extra time and risk.

## How much should you charge for dryer vent cleaning?

Many companies charge a flat rate for a standard single-story vent, with add-ons for roof terminations, long or multi-story runs, nest removal and parts. Build the base rate from your time per job including driving, then add overhead and profit and check it against local competitors.

### A worked example (hypothetical numbers)

Say a standard job takes 60 minutes on site plus 25 minutes of driving, you pay a tech $25 an hour, and supplies and vehicle cost $15 per job.

| Cost per job | How it is worked out | Amount |
| --- | --- | --- |
| Labor | 85 minutes at $25/hour | $35.42 |
| Vehicle, fuel and supplies | Assumed per-job average | $15.00 |
| Direct cost |  | $50.42 |
| Price with 30% overhead and 20% profit | $50.42 ÷ 0.50 | about $101 |

Then set add-ons from the extra time each one takes:

- Roof termination: extra ladder time and risk, priced as a flat add-on.
- Each additional vent at the same address: lower than the first, since you are already there.
- Nest removal: flat fee, plus a pest guard if the client wants one.
- Parts: metal transition duct or exterior cover at your cost plus a markup.

Put the price list in writing and quote add-ons before you do them, not after. The [estimate template](https://broombook.com/tools/cleaning-estimate-template) works for this. For apartment buildings, quote per unit for a full building, with a lower rate because the units are steps apart. Check what a full day of jobs leaves you after all costs with the [profit calculator](https://broombook.com/tools/cleaning-business-profit-calculator).

## Where do dryer vent cleaners find steady work?

Homeowners call once a year at most, so steady volume comes from reminders, from property managers and multifamily buildings, and from the people who see dryers every day: inspectors, appliance techs and real estate agents.

- **Annual reminders.** The USFA advice to clean the ductwork every year gives you a reason to contact every past client on the anniversary of their visit. Book them before the fall and winter peak in dryer fires.
- **Apartment complexes, condos and HOAs.** One contract can mean dozens or hundreds of vents in one place, often on a yearly schedule. Long shared runs in multistory buildings are where certification and good equipment pay off.
- **Property managers and landlords.** Vent cleaning fits into turnover between tenants.
- **Home inspectors and real estate agents.** Inspectors flag lint-clogged vents in reports, and buyers or sellers need someone to fix it before closing.
- **Appliance repair techs.** They see dryers failing from restricted airflow and often don’t want to clean the duct themselves.
- **Google and local groups.** A Google Business Profile with photos of real lint pulled from vents, and a clear booking link. See [cleaning company SEO](https://broombook.com/guides/seo-for-cleaning-companies) for setup.

If you already run a cleaning company, your existing clients are the easiest first customers. The broader playbook is in [how to get clients for a cleaning business](https://broombook.com/guides/how-to-get-cleaning-clients).

## Is dryer vent cleaning a good business?

It is a low-cost trade to enter with a clear safety reason behind every sale, short jobs and natural yearly repeat work. The challenges are low price per job, limited repeat frequency per home, and the extra risk of gas connections and roof work.

| Strengths | Challenges |
| --- | --- |
| Low startup cost compared with most trades | Low price per single-home job |
| Clear safety reason backed by federal fire data | Each home needs you about once a year |
| Short jobs, several per day | Gas dryer connections and roof work add risk |
| Multifamily contracts bring volume | Duct rerouting can need a licensed contractor |
| Pairs well with chimney, air duct and appliance services | Customers often don’t know the service exists until something goes wrong |

### Running it alongside house cleaning

Dryer vent cleaning is a natural upsell for a residential cleaning company that already has a list of trusted clients, but it needs its own training, tools and insurance. Broombook is built for scheduling and billing residential house cleaning; if you run a cleaning crew, its recurring schedules, reminders and card checkout cover that side of the business, and you can offer vent cleaning to the same clients. For other services to add, see [cleaning business ideas](https://broombook.com/guides/cleaning-business-ideas).

## Frequently asked questions

### How much does it cost to start a dryer vent cleaning business?

A solo start mostly needs a rotary brush kit and drill, a vacuum or blower, an airflow meter, parts stock, a ladder, safety gear, training, business registration and insurance, plus a vehicle you may already own. Price each item locally and get insurance quotes before you set a budget. Certification costs depend on the CSIA route you choose.

### Do you need a license to clean dryer vents?

In most places there is no license specific to dryer vent cleaning, but you need the general business registration and local license any service company needs. Work beyond cleaning, such as rerouting ducts or disconnecting and reconnecting gas lines, can require a licensed contractor or permit in some states and cities. Check locally.

### What certification should a dryer vent cleaner get?

The Chimney Safety Institute of America’s Certified Dryer Exhaust Technician (CDET) is the credential CSIA calls the only nationally recognized one for dryer vent cleaning. CSIA offers a hands-on workshop that ends with the exam, a one-day review and exam, or self-study with an optional online review. Certified techs are listed on CSIA’s website.

### How often should a dryer vent be cleaned?

The U.S. Fire Administration tells homeowners to clean the dryer vent ductwork every year and the lint filter every time they use the dryer. Homes with heavy laundry use, long runs or signs of trouble, like clothes still damp after a normal cycle, may need it more often.

### Do dryer vents really cause fires?

Yes. A U.S. Fire Administration report covering 2008 to 2010 estimated about 2,900 clothes dryer fires in residential buildings each year, causing 5 deaths, 100 injuries and $35 million in property loss, with failure to clean the leading factor at 34 percent. That is why yearly cleaning is the standard advice.

### Should I replace foil or plastic dryer ducts?

The Consumer Product Safety Commission recommends replacing plastic or foil accordion ducting with rigid or corrugated semi-rigid metal duct, which most dryer manufacturers specify. Flexible plastic and foil ducts trap more lint and crush more easily, which reduces airflow. Offer the swap as a priced add-on on every job.

## Sources

- [U.S. Fire Administration: Clothes Dryer Fires in Residential Buildings (2008-2010), August 2012](https://www.usfa.fema.gov/downloads/pdf/statistics/v13i7.pdf)
- [U.S. Fire Administration: Basement and garage fire safety](https://www.usfa.fema.gov/prevention/home-fires/prevent-fires/basement-and-garage/index.html)
- [U.S. Consumer Product Safety Commission: Overheated Clothes Dryers Can Cause Fires](https://www.cpsc.gov/s3fs-public/5022.pdf)
- [Chimney Safety Institute of America: Certified Dryer Exhaust Technician (CDET)](https://www.csia.org/certified-dryer-tech)
- [NADCA: Air Systems Cleaning Specialist (ASCS)](https://nadca.com/hvac-certification-education-training/air-systems-cleaning-specialist-ascs)
- [OSHA: Portable Ladder Safety QuickCard](https://www.osha.gov/sites/default/files/publications/PORTABLE_LADDER_QC.pdf)
- [OSHA: 29 CFR 1910.28, duty to have fall protection](https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.28)
- [IRS: Apply for an Employer Identification Number (EIN) online](https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-number-ein-online)

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