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

Same-day air duct service in Des Moines, WA

Air Duct Servicesin Des Moines, WA

In Des Moines, houses stay closed up through long, wet winters, and the same indoor air cycles through the ductwork for months at a time. Whatever the system collects - dust, pollen, damp-season debris - the house keeps breathing it. We clean the system from the main trunk out and inspect it on camera.

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Air Duct Service Co — Des Moines, WA

Every air duct service, one Des Moines call

The six services Des Moines homeowners call us for most - from clearing a damp-season trunk to sealing crawlspace runs end to end. Everything on this page is air duct in Des Moines, WA — the work, the local conditions and the coverage.

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. In King County, a cleaning after smoke season clears the fine residue the returns stored while the skies were gray. Air Duct Cleaning in Des Moines, WA is one call away, every day of the week.

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

Cleaning & Care Air Duct Inspection

In Des Moines, the camera pays closest attention to crawlspace runs, where damp and sagging insulation hide the system's real condition. 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. For air duct inspection in Des Moines, WA, one call books the visit and a local tech takes it from there.

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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. In King County, the cold end of the house is usually a duct problem, and the repair follows the run until airflow balances. We repair and rebuild damaged sections so airflow is strong and even again. That is air duct repair in Des Moines, WA, done the way it should be.

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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. Air Duct Installation in Des Moines, WA is one call away, every day of the week.

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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 King County, a sealed return stops pulling unfiltered crawlspace air - and its moisture - into the system. That local standard is what air duct sealing in Des Moines, WA means with Air Duct Service Co.

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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 Des Moines — scheduled commercial duct cleaning with the same negative-air machine sealed onto the trunk, keeping your space comfortable, compliant and breathing clean. Commercial Air Duct Cleaning in Des Moines, WA runs on one standard: done properly, checked, and shown to you before we leave.

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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

Des Moines ducts have Des Moines problems

A duct system in Des Moines 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.

Closed-up winters concentrate everything

From late fall to early spring, a Des Moines home barely opens a window, and the heating system recirculates the same air for months. Dust, dander and cooking residue that enter the returns in November are still circulating in February - the duct system becomes the house's memory of the whole winter.

Smoke weeks in late summer

Wildfire smoke reaches the Des Moines area most summers now, and fine smoke particles penetrate closed homes and settle into duct dust. After the skies clear, the system keeps recirculating that residue at startup - a post-smoke cleaning is the fastest way to close the season out.

Pet hair in a carpet climate

Rainy-season living means more indoor hours for people and pets alike in Des Moines, 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.

Condensation on cold ducts

Cool supply ducts passing through humid crawlspaces in King County can sweat on their outer surfaces in summer. Torn or missing insulation is usually behind it, and the dripping wets joists and subfloor - a duct repair and insulation fix, caught early on an inspection.

Des Moines sits in King County, and the ZIP list at the bottom of this page covers 2 serviceable ZIP codes — 98148 through 98198. The closest served neighbors are Normandy Park, SeaTac, Burien, 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.

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Questions

Asked the way Des Moines asks

How often should ducts be cleaned in the Northwest?

Every few years for most Des Moines homes - sooner with pets, allergy sufferers, a heat pump running long fan hours or a home that sat closed through a smoky summer. We camera-inspect free and show you the inside of your own trunk, so the decision comes from what is actually in there.

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 Des Moines homes, separated crawlspace joints and unsealed returns are the standing findings, and mastic sealing is the lasting fix.

Is duct work different with a heat pump?

The ductwork is the same, but it works more hours - heat pumps move air gently and often, so a dust load gets delivered more times a day. Keeping the trunk and returns clean, and the returns sealed properly, matters more, not less, behind a heat pump.

Should I clean the ducts in a home I just bought?

It is one of the better first looks you can take. The camera shows what years of wet winters, pets or remodels left inside the system across Des Moines, and you decide from the screen whether a cleaning belongs on the move-in list.

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

Des Moines, WA ZIP codes we serve

Air Duct Service Co is a national company with local technicians serving Des Moines 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 Des Moines list below covers 2 ZIP codes, 98148 through 98198.

98148 98198

Don't see your ZIP? Des Moines 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: Normandy Park, WA · SeaTac, WA · Burien, WA · Tukwila, WA · Kent, WA · Federal Way, WA.