Metal ductwork running through a home, insulated and sealed at the joints

Same-day air duct service in Seattle, WA

Air Duct Servicesin Seattle, WA

From older homes with crawlspace systems to new builds with heat pumps, Seattle ductwork shares the same enemies: moisture, pollen and time. Free inspections, same-day service and a camera view of your own ducts before we recommend anything.

Call (888) 258-5005 See reviews Fastest way in is a call — or send the form and we call you back.

100+ 5-Star Reviews Facebook Instagram Licensed & Insured 10+ Years Experience Same-Day Service

Your information is kept private and used only for your air duct service request.

Request received.

We'll call you back shortly to confirm your time.

Need it faster? Call now

Air Duct Service Co — Seattle, WA

Every air duct service, one Seattle call

From a musty system after a closed-up winter to a heat-pump home adding a new run, these are the six duct services Seattle homeowners book with us. Below is air duct in Seattle, WA in full — every service, the local conditions and the areas covered.

Technician feeding an air whip into a floor vent in a home living room

Cleaning & Care Air Duct Cleaning

Our negative-air machine seals onto the main trunk duct and puts the whole system under suction first. Then each run is scrubbed individually, so years of dust and debris travel one way only — out of the ducts and into the machine. Around Seattle, crawlspace systems get the same trunk-first treatment, with the moisture-side buildup cleared from every run. The crews behind air duct cleaning in Seattle, WA are the same ones who cover the ZIP codes listed below.

Get a free estimate

Technician inspecting a ceiling return vent with a flashlight inside a home

Cleaning & Care Air Duct Inspection

The camera sees under attic insulation blankets, so a separated joint gets found without disturbing anything. A camera goes inside your ductwork so you can see exactly what's in there — buildup, damage or blockages — before we recommend anything. Inspections are free. Air Duct Inspection in Seattle, WA is one call away, every day of the week.

Get a free estimate

Technician joining a duct section back together in a home attic

Repair Air Duct Repair

Crushed, torn or disconnected ducts leak the air you pay to heat and cool. Around Seattle, we repair original metal trunks and the flex additions layered on by later remodels alike. We repair and rebuild damaged sections so airflow is strong and even again. When neighbors talk about air duct repair in Seattle, WA, this is the visit they mean.

Get a free estimate

Technician connecting a new flex duct to the furnace inside a home

Install & Replace Air Duct Installation

New duct runs for additions, remodels and system upgrades — sized, sealed and balanced so every room gets its share of heating and cooling. In King County, crawlspace installs are routed and supported to stay clear of the dampest ground and the coldest air. It is why air duct installation in Seattle, WA keeps getting recommended to neighbors.

Get a free estimate

Technician brushing mastic sealant onto a duct joint in a home attic

Repair Air Duct Sealing

Leaky joints quietly waste a big share of your airflow. We seal seams and connections with professional mastic for a tighter, more efficient system. In Seattle, sealing crawlspace runs stops the system from trading heated air with the dampest space in the house. For air duct sealing in Seattle, WA, one call books the visit and a local tech takes it from there.

Get a free estimate

Two technicians cleaning the ductwork in a home with a professional duct machine

Cleaning & Care Commercial Air Duct Cleaning

Offices, restaurants, retail and multi-unit buildings across Seattle — scheduled commercial duct cleaning with the same negative-air machine sealed onto the trunk, keeping your space comfortable, compliant and breathing clean. In King County, property managers get a camera record of each system, so condition is documented between tenants. Commercial Air Duct Cleaning in Seattle, WA starts with a real look at the problem — never a guess over the phone.

Get a free estimate

Need something else — a damper, a blower, a smoke problem, a bird in the flue? We cover all 27 air duct specialties. Call (888) 258-5005 and describe it.

Local conditions

Seattle ducts have Seattle problems

A duct system in Seattle works through wet winters in a sealed house, often from a damp crawlspace, and increasingly alongside a heat pump. This is what we actually find here, and what we check on every visit.

Spring pollen, heavy and sudden

Tree pollen arrives in Seattle in a rush each spring - alder, birch and cedar in turn - and coats everything for weeks. Return ducts store the season's load, and allergy households keep breathing spring pollen from the system well into summer.

Heat pumps run the fan longer

Heat pumps are everywhere in Washington now, and they move air more hours of the day than the furnaces they replaced. More fan hours means the dust load in the ductwork gets delivered more often - and filters and ducts both earn attention sooner.

Older homes, mixed systems

Plenty of Seattle houses pair an original metal trunk with flex additions from remodels across the decades. Each era collects and leaks differently, returns are often undersized, and an inspection maps the patchwork honestly before anyone proposes work.

Pet hair in a carpet climate

Rainy-season living means more indoor hours for people and pets alike in Seattle, and floor-level returns collect hair and dander steadily through the wet months. It mats inside the return runs, well past where a filter could ever help.

Seattle sits in King County, and the ZIP list at the bottom of this page covers 40 serviceable ZIP codes — 98101 through 98199. The closest served neighbors are Medina, Mercer Island, Beaux Arts Village, and every one of them is covered by the same crews, the same day, under the same number: (888) 258-5005.

Cold air duct? Warm answer.

Same-day service, free estimates, licensed & insured — and a air duct that lights when you click the remote.

Call (888) 258-5005 Request a quote

Questions

Asked the way Seattle asks

Why does my house smell musty when the heat starts?

In Seattle, the usual cause is dust that has sat in damp ductwork - crawlspace runs especially - through the wet months. The first heating cycles deliver that stored smell to every room. A cleaning from the main trunk out clears the source; if the odor returns fast, the inspection checks for wet insulation or a return pulling crawlspace air.

Can cleaning help after wildfire smoke weeks?

Yes - it removes the indoor reservoir. Smoke particles settled into duct dust keep recirculating at startup after the outdoor air clears across King County. Cleaning the trunk and returns, with a fresh filter, is how most households close out a smoke season indoors.

Why is one end of the house always colder?

Usually the ductwork: a separated attic joint under the insulation, a crushed crawlspace run, or the longest branch losing heated air at loose seams. We trace the run on the inspection camera, and repair plus sealing normally restores the room without touching the equipment.

What are the signs my ducts are leaking?

Rooms that lag the thermostat, long heating cycles, dust returning days after cleaning and weak flow at far registers. Under Seattle homes, separated crawlspace joints and unsealed returns are the standing findings, and mastic sealing is the lasting fix.

Do you clean ducts in commercial buildings here?

Yes - offices, restaurants, retail, schools and multi-unit buildings across Seattle, scheduled around your hours. Commercial systems get the same method: the negative-air machine sealed onto the trunk, every run cleaned individually, and a camera record of condition.

Do you give prices over the phone?

No — and be wary of anyone who does. Every duct system is a different size and condition, so a phone price is a guess that changes at your door. Our inspections and estimates are free: a tech looks inside your actual ductwork first, then gives you one clear price before any work starts.

Where we work

Seattle, WA ZIP codes we serve

Air Duct Service Co is a national company with local technicians serving Seattle street addresses across the ZIP codes below — same-day service and free estimates, every day 8 AM – 8 PM. More of Washington is covered from our Washington page. The Seattle list below covers 40 ZIP codes, 98101 through 98199.

98101 98102 98103 98104 98105 98106 98107 98108 98109 98110 98112 98115 98116 98117 98118 98119 98121 98122 98125 98126 98131 98133 98134 98136 98144 98146 98148 98154 98155 98158 98161 98164 98166 98168 98174 98177 98178 98188 98198 98199

Don't see your ZIP? Seattle also uses P.O. Box and single-organization ZIP codes that have no street addresses — call (888) 258-5005 and we will confirm coverage for your street address on the call.

Also serving nearby: Medina, WA · Mercer Island, WA · Beaux Arts Village, WA · Clyde Hill, WA · Hunts Point, WA · Yarrow Point, WA.