Dryer Vent Cleaning Cost in 2026: What to Expect

Most pros charge a flat rate for vent runs under 10 feet, then add $10-$15 per additional 10 feet beyond that. A 10-foot vent run might cost $90-$100; a 35-foot run to a roof exit can push $150-$200 just for the cleaning portion. Building codes typically cap dryer vent length at 35 feet equivalent (with deductions for each 90-degree bend), so excessively long vents may also indicate a code violation worth addressing.

Each 90-degree elbow in the duct run adds brushing difficulty and reduces the effective allowed duct length under IRC codes. Most technicians add $10-$20 per elbow beyond the first. A vent with four bends is both harder to clean and a fire risk - each bend collects lint more aggressively than a straight run. According to NFPA data, dryers cause approximately 16,000 home fires annually in the U.S., with failure to clean the dryer vent listed as the leading contributing factor.

A standard sidewall exit is the easiest scenario - the technician can access both ends of the duct and run a brush through efficiently. Roof exits require the technician to work from the rooftop, which adds time, safety equipment, and typically a $20-$80 surcharge. Rooftop vents are also more prone to bird nesting and debris accumulation, often requiring extra clearing time.

Light annual lint buildup is the baseline that most flat-rate quotes cover. A compacted blockage from several years of skipped cleanings, a bird or rodent nest, or a crushed duct section all add time and cost. Nest removal alone can add $50-$150, and if the obstruction has damaged the duct lining, a partial reroute or replacement may be needed. The NFPA recommends cleaning at least once per year - homeowners who wait 3-5 years between cleanings routinely face the higher end of removal costs.

A video camera inspection threads a small camera through the duct after cleaning to verify the vent is clear, confirm the damper opens properly, and check for crushed or disconnected sections behind walls. Most companies charge $40-$75 as an add-on; some mid-tier packages include it. For vents that run inside walls or through unconditioned attic space, the inspection is worth the extra cost - a disconnected duct section venting hot humid air into an attic or wall cavity is an expensive problem to discover after the fact.

“How do you measure vent length, and what does your base price include?”

Why this matters: Some companies quote a flat rate that covers up to 15 feet; others charge per foot from the start. Knowing the exact scope of the base price prevents surprise upcharges when the tech arrives and measures your actual vent run.

“Do you use a rotary brush system or just a vacuum, and will you clean from both ends?”

Why this matters: A vacuum alone without a brush doesn't dislodge compacted lint - it only removes loose material. Rotary brush systems pushed from the dryer end while vacuuming from the exterior are the industry-standard method. Cleaning from both ends ensures the full run is cleared.

“Is a camera inspection included, and what happens if you find a disconnected section or damaged duct?”

Why this matters: A duct disconnected inside a wall or attic is a serious problem - hot, humid air pumping into an enclosed space causes mold and structural damage. Ask upfront whether the tech will inspect and what they charge to repair minor duct issues on the spot vs. requiring a separate visit.

“Are you licensed or certified, and do you carry liability insurance?”

Why this matters: Dryer vent cleaning is an unregulated trade in most states, so certifications (such as CSIA-certified technician or NADCA member) are a meaningful proxy for training. Liability insurance matters because a tech who disconnects a duct incorrectly and causes a lint fire is leaving you exposed if they're uninsured.

“What will you do if you discover a bird nest, and is nest removal included in the quote?”

Why this matters: Nest removal is messier and more time-consuming than routine cleaning, and many companies treat it as an upcharge. Getting this answer upfront - including the additional cost - prevents a mid-job surprise when the tech opens the exterior vent and finds an active nest.