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

Same-day air duct service in Union City, CA

Air Duct Servicesin Union City, CA

Union City homes were built across a century of styles, and their duct systems range from original metal in older neighborhoods to flex in attic retrofits. Our negative-air machine seals onto the main trunk and puts the whole system under suction first, then every run is scrubbed individually.

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Air Duct Service Co — Union City, CA

Every air duct service, one Union City call

Cleaning, inspection, repair, installation, sealing and commercial work - the full air duct service list for Union City, with free inspections and the same crew on every job. This page covers air duct in Union City, CA end to end — the services, the local picture and the ZIP codes served.

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 Alameda County, open-window months load systems steadily, and every run gets scrubbed along its full length. That local standard is what air duct cleaning in Union City, CA means with Air Duct Service Co.

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

Cleaning & Care Air Duct Inspection

Around Union City, findings come back in plain language: what is clean, what needs work soon, and what can safely wait. 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. When neighbors talk about air duct inspection in Union City, CA, this is the visit they mean.

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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. Crawlspace runs with sagging insulation and sweating joints get rebuilt and wrapped properly. We repair and rebuild damaged sections so airflow is strong and even again. For air duct repair in Union City, CA, one call books the visit and a local tech takes it from there.

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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. Around Union City, additions get runs sealed and balanced with the existing system, so the new room matches the house. That is air duct installation in Union City, CA, done the way it should be.

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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. For air duct sealing in Union City, CA, one call books the visit and a local tech takes it from there.

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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 Union City — scheduled commercial duct cleaning with the same negative-air machine sealed onto the trunk, keeping your space comfortable, compliant and breathing clean. In Alameda County, property managers get a camera record of each system - useful documentation after smoke season for tenants and insurers alike. That is commercial air duct cleaning in Union City, CA, done the way it should be.

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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

Union City ducts have Union City problems

A duct system in Union City may face wildfire smoke, valley heat, coastal moisture or all three across the year. This is what we actually find here, and what we check on every visit.

Inland heat bakes attic systems

Inland Union City summers push attics to extremes, and the ductwork living there ages fast - tape dries, flex jackets get brittle, joints separate. Cooled air leaks overhead while the system runs long afternoons, and sealing is usually where the fix starts.

Pollen nearly all year

With something blooming in California in almost every month, pollen is not a season here so much as a rotation - trees, grasses, weeds in turn. Return ducts collect each wave, and allergy households feel the stored load most when the house is sealed tight.

Earthquake country shakes joints loose

Small tremors are a fact of life in Union City, and duct joints in attics and crawlspaces shift a little with each one. Over years, takeoffs loosen and seams open. A comfort problem with no obvious cause is worth a camera look at the connections overhead.

ADUs, conversions and additions

Garage conversions and accessory units are going up across Union City, and their ductwork is often the last thing planned - tied into a trunk that was never sized for another room. Those spaces stay uncomfortable until the run is installed, sealed and balanced properly.

Union City sits in Alameda County, and the ZIP list at the bottom of this page covers 1 serviceable ZIP codes — 94587 through 94587. The closest served neighbors are Newark, Fremont, Hayward, 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 Union City asks

The smoke is gone but my house still smells like it - why?

Because the ductwork kept it. Fine smoke particles settled into the dust inside your trunk and returns during the event, and every cycle since has released a little back into the rooms. In Union City, a cleaning from the main trunk out removes that stored residue, and the startup smell goes with it.

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 and smoke residue travel 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.

What are the signs my ducts are leaking?

Rooms that lag the thermostat, long AC cycles on ordinary days, dust returning soon after cleaning and weak airflow at distant registers. In attic systems across Union City, heat-dried tape and shifted joints are the standing culprits, and mastic sealing is the lasting fix.

My home is older with original ducts - worth inspecting?

Yes - original ductwork is the most common hidden cause of comfort and dust complaints in older Union City homes. The camera shows buildup, leaks and undersized returns plainly, and you can decide what, if anything, is worth doing from evidence.

Do you clean ducts in commercial buildings here?

Yes - offices, restaurants, retail, medical suites and multi-unit buildings across Union City, 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

Union City, CA ZIP codes we serve

Air Duct Service Co is a national company with local technicians serving Union City street addresses across the ZIP codes below — same-day service and free estimates, every day 8 AM – 8 PM. More of California is covered from our California page. The Union City list below covers 1 ZIP codes, 94587 through 94587.

94587

Don't see your ZIP? Union City 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: Newark, CA · Fremont, CA · Hayward, CA · San Leandro, CA · East Palo Alto, CA · Pleasanton, CA.