Dryer Vent Installation Cost Calculator

Dryer vent installation typically runs $150 to $500, with most jobs around $200 to $400. A simple replacement of an existing vent line is at the low end ($150 to $250), a new vent where none exists is $250 to $450, and a complex install — long run, roof termination, masonry wall, or relocating the dryer — can reach $500 to $800-plus. The run length, install type, termination/routing, duct material, and exterior wall type drive the number. A short side-wall replacement is cheapest; a long roof run through brick is the priciest.

Installation puts in, replaces, or reroutes the vent duct system — a one-time setup done for a new dryer, a replacement, a reroute, or upgrading old foil to rigid metal. Cleaning removes lint that accumulates inside an existing vent over time, a recurring maintenance job recommended at least yearly to prevent fires and keep the dryer efficient. Installation creates the venting ($150 to $500-plus); cleaning maintains it ($100 to $200). Install the vent properly, then clean it annually — they're complementary services at different points in the vent's life.

Rigid metal — and it's not close. Smooth-walled rigid metal (galvanized steel or aluminum) is the recommended, usually code-required choice for the main run: its smooth interior lets lint flow through instead of catching, it won't burn or melt, and it doesn't sag or crush. Flexible foil and especially plastic/vinyl are lint-trapping fire hazards, sag and kink, and are prohibited by code for the main run. Semi-rigid metal is acceptable only for the short transition behind the dryer, where a little flex is needed. If you have old foil or plastic duct, replacing it with rigid metal is a real safety upgrade.

Outside — through an exterior side wall is the standard, easiest, and most efficient (short, direct route). If the dryer is far from an outside wall, it can go up through the roof (with flashing) or down through the floor/crawl space to an exterior wall. Wherever it exits, it needs a proper vent hood with a damper that opens when the dryer runs and closes when it stops, plus a pest guard. Critically, it must never terminate inside the home, in the attic, a crawl space, a soffit, or any enclosed area — that traps moisture and lint, causing mold and fire risk.

Yes. A short, direct run of 10 feet or less is the baseline; an 11-to-25-foot run adds about 20%, and a run over 25 feet about 40%, for the extra duct, elbows, and labor. Long runs are also a performance concern — codes cap the total developed length (deducting for each bend), and beyond that limit a duct booster fan is needed to move the air. So a long run costs more both to build and, often, to make work. Keeping the run as short and straight as possible is best for airflow, lint, and cost.

A simple side-wall install through vinyl or wood siding with a short, direct run is a doable DIY: pick the shortest route, cut the exterior hole with a hole saw, run rigid metal duct, install and caulk the vent hood, and connect the duct with foil tape and clamps — not screws, which catch lint. Hire a pro for roof termination (flashing and leak risk), long or multi-bend runs, cutting through brick or stucco, routing inside finished walls, relocating the dryer, or to guarantee a code-compliant install. A poorly installed vent — wrong duct, too long, screws inside, bad termination — is a fire and moisture hazard.

A duct booster fan (~$250) is an inline fan that adds airflow to a dryer vent run that's too long or has too many bends for the dryer's own blower to push air through effectively. Codes cap the maximum developed length of a dryer duct (deducting several feet for each elbow), and when your route exceeds that — common with interior dryers, long basement runs, or roof terminations — a booster fan restores proper exhaust so clothes dry and lint clears. If your planned run is long or twisty, budget for one. The calculator includes it as an add-on for exactly these situations.

Because cutting the exterior penetration is easy or hard depending on what the wall is made of. Vinyl or wood siding drills quickly with a hole saw — the baseline. Brick, stucco, or masonry (~$120 more) needs special bits or a core drill and takes real time and skill. Routing through finished interior walls (~$180 more) means opening and patching drywall to conceal the duct. The wall type doesn't change the vent itself, just the labor to get through it — which is why the same run can cost noticeably more on a masonry home than a sided one.

Yes to all three — they're what makes the exterior termination work. The vent hood/cap houses the outlet, the damper (a flap) opens under airflow when the dryer runs and closes when it stops to keep out weather, drafts, and backdrafts, and a pest/bird guard stops animals from nesting in the warm opening. An upgraded hood with a better damper (~$90) improves airflow and seal, and a bird guard (~$50) prevents the nesting that's a common cause of blocked vents. Avoid fine-mesh screens, though — they trap lint and clog. A basic hood with a damper is included in any proper install; the upgrades are worthwhile add-ons.

A simple replacement using the existing route is often under an hour. A standard new side-wall vent through siding is 1 to 2 hours — pick the route, cut the penetration, run the duct, mount the hood, connect. Rerouting or a longer run runs 2 to 3 hours, roof termination 2 to 4 for the flashing and roof work, and relocating the dryer with a new path a half-day or more. Masonry walls and finished-interior routing add time. The install type, run length, termination, and wall type together set the timeline; most side-wall jobs finish in a couple of hours.