Between spring pollen, summer wildfire smoke drifting over the Cascades and a winter spent sealed indoors, Washington County ductwork collects a Northwest load all its own. A trunk-first cleaning removes the reservoir instead of redistributing it.
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The six services Hillsboro 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 Hillsboro, OR — the work, the local conditions and the coverage.
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. Air Duct Cleaning in Hillsboro, OR runs on one standard: done properly, checked, and shown to you before we leave.
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Cleaning & Care
Air Duct Inspection
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 Hillsboro, OR runs on one standard: done properly, checked, and shown to you before we leave.
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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. For air duct repair in Hillsboro, OR, one call books the visit and a local tech takes it from there.
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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 Hillsboro, OR means with Air Duct Service Co.
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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. Booking air duct sealing in Hillsboro, OR takes one call, and the tech arrives with everything the job needs.
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Cleaning & Care
Commercial Air Duct Cleaning
Offices, restaurants, retail and multi-unit buildings across Hillsboro — scheduled commercial duct cleaning with the same negative-air machine sealed onto the trunk, keeping your space comfortable, compliant and breathing clean. The same negative-air method scales up: one machine sealed onto the trunk, every run cleaned individually, no shortcuts on bigger systems. When neighbors talk about commercial air duct cleaning in Hillsboro, OR, this is the visit they mean.
Get a free estimateNeed 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.
A duct system in Hillsboro 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.
That stale, damp odor when the heat kicks on is the most common complaint we hear in Washington 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.
Tree pollen arrives in Hillsboro 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.
Wildfire smoke reaches the Hillsboro 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.
Cool supply ducts passing through humid crawlspaces in Washington 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.
Hillsboro sits in Washington County, and the ZIP list at the bottom of this page covers 4 serviceable ZIP codes — 97003 through 97124. The closest served neighbors are Cornelius, Beaverton, Tigard, and every one of them is covered by the same crews, the same day, under the same number: (888) 258-5005.
Same-day service, free estimates, licensed & insured — and a air duct that lights when you click the remote.
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.
Yes - it removes the indoor reservoir. Smoke particles settled into duct dust keep recirculating at startup after the outdoor air clears across Washington County. Cleaning the trunk and returns, with a fresh filter, is how most households close out a smoke season indoors.
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.
Yes - offices, restaurants, retail, schools and multi-unit buildings across Hillsboro, 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.
Yes - same-day service is available in Hillsboro, along with free inspections and estimates before any work starts. We are licensed and insured, with 10+ years of experience and 100+ 5-star reviews. Call early in the day for the best chance of a same-day visit.
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.
Air Duct Service Co is a national company with local technicians serving Hillsboro street addresses across the ZIP codes below — same-day service and free estimates, every day 8 AM – 8 PM. More of Oregon is covered from our Oregon page. The Hillsboro list below covers 4 ZIP codes, 97003 through 97124.
Don't see your ZIP? Hillsboro 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: Cornelius, OR · Beaverton, OR · Tigard, OR · King City, OR · North Plains, OR · Sherwood, OR.
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