Clean vent register grille on the wall of a home

Same-day air duct service in Mercer Island, WA

Air Duct Servicesin Mercer Island, WA

Between spring pollen, summer wildfire smoke drifting over the Cascades and a winter spent sealed indoors, King County ductwork collects a Northwest load all its own. A trunk-first cleaning removes the reservoir instead of redistributing it.

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 — Mercer Island, WA

Every air duct service, one Mercer Island 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 Mercer Island homeowners book with us. Below is air duct in Mercer Island, 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. In Mercer Island, the cleaning focuses on the damp-season load - dust that has sat in humid ductwork through a closed-up winter. Air Duct Cleaning in Mercer Island, WA runs on one standard: done properly, checked, and shown to you before we leave.

Get a free estimate

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

Cleaning & Care Air Duct Inspection

In King County, a fall inspection catches the separated joints that would waste heated air through the whole wet winter. 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. That local standard is what air duct inspection in Mercer Island, WA means with Air Duct Service Co.

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. Crushed or fallen crawlspace runs get rebuilt with proper support and insulation, not just lifted back into place. We repair and rebuild damaged sections so airflow is strong and even again. That local standard is what air duct repair in Mercer Island, WA means with Air Duct Service Co.

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. Returns get planned properly on every install - the undersized return is the classic older-home flaw here too. That local standard is what air duct installation in Mercer Island, WA means with Air Duct Service Co.

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. Sealed ducts also hold smoke-season air inside the system, filtered, instead of leaking it at every joint. That is air duct sealing in Mercer Island, WA, done the way it should be.

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 Mercer Island — scheduled commercial duct cleaning with the same negative-air machine sealed onto the trunk, keeping your space comfortable, compliant and breathing clean. Around Mercer Island, multi-unit buildings get a unit-by-unit plan, with each system cleaned from its own trunk. It is why commercial air duct cleaning in Mercer Island, WA keeps getting recommended to neighbors.

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

Mercer Island ducts have Mercer Island problems

A duct system in Mercer Island 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.

Musty startup smells

That stale, damp odor when the heat kicks on is the most common complaint we hear in King County. It traces to dust that has sat in humid ductwork - in crawlspace runs especially - and a trunk-first cleaning clears the source rather than masking it.

Spring pollen, heavy and sudden

Tree pollen arrives in Mercer Island 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.

Older homes, mixed systems

Plenty of Mercer Island 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.

Attic systems and fallen insulation

Where ducts run through the attic, blown insulation drifts against and over runs, straps loosen, and joints separate under the blanket where nobody sees them. Weak airflow to one end of the house is often an attic duct story, found on camera without disturbing the insulation.

Mercer Island sits in King County, and the ZIP list at the bottom of this page covers 1 serviceable ZIP codes — 98040 through 98040. The closest served neighbors are Beaux Arts Village, Clyde Hill, Hunts Point, 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 Mercer Island asks

How do you clean the ducts - what is the process?

Our negative-air machine seals onto the main trunk duct and puts the whole system under suction first. Then each individual run is scrubbed on its own, so loosened dust travels toward the trunk and into the machine - never back into your rooms. We finish at the registers and show you the before-and-after on camera.

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.

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 Mercer Island 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 Mercer Island, 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

Mercer Island, WA ZIP codes we serve

Air Duct Service Co is a national company with local technicians serving Mercer Island 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 Mercer Island list below covers 1 ZIP codes, 98040 through 98040.

98040

Don't see your ZIP? Mercer Island 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: Beaux Arts Village, WA · Clyde Hill, WA · Hunts Point, WA · Yarrow Point, WA · Bellevue, WA · Medina, WA.