Dryer Vent Cleaning

💲 What Dryer Vent Cleaning Costs

Two numbers get quoted for this service and they describe different things, so here is the full distribution of our own 126 completed vent jobs rather than a single figure.

Median full invoice including parts, labor and the service call, from the Bozmanfix Repair Index. Across all 126 jobs the middle half ran $199 to $405. State figures where the count supports one: Florida $369 across 64 jobs, Georgia $331 across 27. We publish a median only where the count behind it can carry one, and we print the count.

How that compares with the market

Published national figures for a standalone dryer vent cleaning sit at $80 to $185 typical, rising to $150 to $250 where the vent exits through a roof, with quoted ranges running from about $75 to $340 and averages usually reported around $140. Those come from consumer pricing guides, not from us.

The two questions that actually narrow a price are whether the laundry is on an upper floor, and whether the exhaust leaves through a wall or through a roof. Anyone can answer those in ten seconds and they move the number more than anything else.

🧭 Two Different Services, and Which One You Need

Worth being clear about, because the search results for this mix together two trades that do different work.

A duct-cleaning company cleans ducts. That is the whole product, it is efficient, and if your dryer works properly and you simply want the annual maintenance done, it is a sensible thing to buy.

An appliance repair company — which is what we are — starts from the symptom rather than the pipe. That difference only matters in one situation, and it is a common one: when the dryer is not drying and nobody knows why yet.

Here is why. Restricted airflow, a failing heating element, a tripped thermal fuse and a dying thermostat all produce the same complaint: clothes come out damp after a full cycle. From the outside they are indistinguishable. In our records, vent problems account for about four percent of dryer repairs, which means most of the time that symptom is something else.

So the practical rule: dryer working fine and you are doing scheduled maintenance, buy a cleaning from whoever is convenient. Dryer not drying and you do not know why, get it diagnosed — and our $99 covers the visit and comes off the work if there is any.

📅 How Often a Dryer Vent Needs Cleaning

Once a year for a normal household. That is the interval to plan around and for most homes it is enough.

Four things shorten it, and they compound rather than substitute for each other.

Any two together and treat once a year as a floor rather than a target. All four and the realistic interval is closer to every six to eight months.

What does not extend the interval is diligence with the lint screen, which is the single most common misunderstanding about this subject.

🧺 The Lint Screen Does Not Do This Job

Emptying the screen every load is good practice and it prevents none of what this page is about.

The screen catches what it catches. Everything past it goes into the duct, load after load, and there is no second filter anywhere downstream. It is a coarse trap at the start of a long pipe, not a seal.

Which is why a household that has emptied the screen religiously for eight years is genuinely surprised when a technician pulls a compacted plug out of the run. Both things are true at once: the screen is spotless, and the duct is blocked. One was never going to prevent the other.

🔥 Signs It Needs Cleaning Now

The gradual version is the one that costs people money, because there is no moment where the dryer breaks. Drying times creep from forty minutes to fifty to eighty across two years, the household adapts without noticing, and eventually somebody decides the machine is old and buys a new one. The new machine is then connected to the same duct.

🔧 What Happens on the Visit

No mystery to it, and worth knowing so you can tell whether the job was done properly.

1. Airflow is checked at the termination first. This establishes whether there is a restriction at all and roughly how bad it is, before anything is dismantled. It also separates a duct problem from a machine problem, which matters because the symptoms are identical.
2. The dryer is pulled out and disconnected. The transition hose behind the machine comes off. A large share of all restrictions live right here, because that hose is usually crushed into whatever shape the gap behind the dryer allows.
3. The run is cleared from both ends. A rotating brush on a flexible rod is fed through and debris is drawn toward the openings rather than pushed deeper. Working from both ends matters: a brush driven only from the machine end can pack material against a bend instead of removing it.
4. The termination is cleaned and inspected. The exterior hood, its screen if it has one, and the flap. A flap that will not hinge freely is not a cleanable problem and gets replaced.
5. The duct itself is inspected while it is open. Crushed sections, sagging spans, separated joints, prohibited materials and protruding fasteners are all found by looking, not by brushing — see the two sections below on what any of those mean.
6. The machine is reconnected and airflow is checked again. Same point, same method. If the reading at the hood has not improved, the work is not finished.

How long it takes

Under an hour on a straightforward ground-floor installation with a short run. Longer where the machine is stacked or wedged into a closet, because getting the unit out and back in aligned is labor before anything is cleaned. Longest on second-floor laundries venting through a roof, where simply reaching both ends of the run is part of the job.

If the visit turns up a crushed section or a separated joint, that is a repair rather than a cleaning and it adds time. We say so before starting, not after.

💨 What Airflow Is Supposed to Look Like

The reason a small amount of lint matters more than people expect is that a dryer moves a serious volume of air. A clothes dryer can pull on the order of 200 cubic feet per minute out of the house, and it has to push all of it through a four-inch pipe.

Every restriction in that pipe is resistance the machine’s own blower has to overcome, and it was not built with much margin. This is why the professional way to verify the work is a measured airflow reading at the termination before and after cleaning, taken with a vane anemometer. It is also the standard that the industry’s own credential is built around: the Certified Dryer Exhaust Technician qualification from the Chimney Safety Institute of America is the only nationally recognised certification for this trade, and its exam covers airflow physics, duct material science and the relevant NFPA standards, 54 and 211.

The practical takeaway for a homeowner is simpler than the standards. A number before and after is the only thing that proves a cleaning achieved anything. Clothes seeming to dry a bit better for a fortnight is not evidence, because the same load in drier weather behaves the same way.

📐 What Your Duct Is Supposed to Be Made Of

This is where a lot of houses turn out to be wrong, and it explains why some ducts clog again within months of being cleaned. Residential code is specific about the exhaust duct, and the requirements exist for airflow and fire reasons rather than tidiness.

Three of those turn up regularly on visits: vinyl hose still in service behind an older machine, screws through joints where tape should have been used, and unsupported duct sagging between joists. All three are the reason a duct that was cleaned last year is packed again this year — the cleaning was fine, the installation is what keeps refilling it.

📏 Why Some Ducts Have No Margin Left

Code allows 35 feet of dryer exhaust from the machine to the outside termination, and that is not a straight-line allowance. Every 90-degree elbow subtracts 5 feet from it and every 45-degree bend subtracts 2.5 feet, because a corner costs airflow the same way extra pipe does.

A run with four 90-degree elbows therefore has 15 feet of straight pipe left before it is over the limit. Now count the turns on a typical second-floor laundry: out of the machine, into the wall, up, into the attic, across, and out through the roof. Five bends before a single foot of horizontal distance.

Such a house is perfectly code-compliant and has almost no spare airflow. A quarter-inch lining of lint removes a share of the capacity a short garage run would never miss. It is not a defect, it is a thin margin — and a thin margin is exactly the case where annual cleaning stops being optional.

🆚 Cleaning or Repair, and How to Tell

These get used interchangeably and they are different jobs at different prices.

Cleaning is what most of this page covers: the duct is intact and lint has narrowed it, so clearing it restores the airflow the installation was designed to have. It is maintenance, and it comes round again next year.

Repair is when the duct itself is the problem and cleaning cannot fix it. A transition hose crushed flat restricts airflow permanently however clean it is. An attic section stepped on during other work is the same. A joint that has separated means the dryer is exhausting into a wall cavity, a crawl space or a basement instead of outdoors, and that one is worse than any blockage, because every load is putting moisture into the structure of the house.

Full detail on the repair side, including what each type of duct fault costs: dryer vent repair.

📊 Is It Worth Paying For

Fair question, so here is the arithmetic from our own records rather than a slogan.

Median full invoice per repair type across completed dryer repairs where a part was replaced. Thermal fuse 16 jobs, thermostat 45, heating element 145, vent 94, will not heat 583, any dryer repair 2,277.

Look at how flat that column is. Once a part is involved, one dryer repair costs about what another does, because the invoice is made mostly of the visit and the labor rather than the component. A heating element is a cheap part attached to an expensive afternoon.

Which reframes the decision. Vent work is not a cheap add-on next to a real repair — it costs about what the failures it contributes to cost. A restricted vent traps heat in the cabinet so the element runs hotter and longer than designed, and elements are the most replaced dryer part in our records at 145 jobs. The choice is between spending that money on a scheduled visit or on an unscheduled one with a week of wet laundry backed up.

And the cheapest outcome is the one at the top of this page: a quarter of our vent visits end at $99 because the duct just needed clearing. That is the version you get by booking before the machine starts failing rather than after.

🧰 A Brush Kit, or a Professional

Kits exist and they are not useless. Being straight about where the line falls is more useful than pretending otherwise.

A kit fed from the machine end will pull loose lint out of the first several feet of a straight, accessible run. On a short garage-wall installation that may genuinely be most of the problem.

Where it stops working is the part nobody sees.

Honest summary: on a short accessible ground-floor run, a kit and an hour will get you somewhere. On anything with an upper floor, a roof termination, several bends, or a symptom that has already been going on a year, you are guessing at something that has a measurable answer.

📍 Dryer Vent Cleaning Near You

We cover eight metro areas, and each local page carries its own figures plus the condition that shapes the work there, because what wrecks a vent in Houston is not what wrecks one in Philadelphia.

📊 Where These Numbers Come From

Pricing and repair-frequency figures on this page come from the Bozmanfix Repair Index, our own completed service records rather than an industry survey. Code requirements, airflow figures and fire statistics are external and attributed where they appear.

Definitions. A vent job is a completed dryer service call where the work involved the vent, duct or exhaust: 126 jobs. Those split into 32 where nothing was replaced, typically the $99 service call, and 94 where a part or duct section was replaced, median $359. Every quoted amount is the full invoice — parts, labor and the service call together — never a parts price.

Median, not average. Medians describe the job in the middle. Averages on repair data get dragged upward by a handful of unusual invoices and end up describing nothing anybody was charged.

Thresholds. We publish a median only where the count behind it can carry one, and we print the count beside every figure. Where a state or city has too small a count of its own, the page says so and quotes the wider pool.

External sources. Market pricing ranges are from published consumer cost guides. The 200 CFM airflow figure, the anemometer verification method and the C-DET credential are from the Chimney Safety Institute of America, the body that certifies this trade. Duct material, diameter, fastener, support and length requirements are from the International Residential Code, section M1502. Fire figures are from national fire-protection research.

Using a figure from this page? Cite it as Bozmanfix Repair Index with the count, for example: 32 of 126 completed dryer vent visits required no replacement parts, Bozmanfix Repair Index. If you need a cut we have not published — by state, by housing type, by season — ask and we will run it.