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

Same-day air duct service in Castle Hills, TX

Air Duct Servicesin Castle Hills, TX

Castle Hills ducts collect construction dust, cedar and oak pollen and plain Texas dirt, then circulate all of it through the longest cooling season in the country. 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 — Castle Hills, TX

Every air duct service, one Castle Hills call

Cleaning, inspection, repair, installation, sealing and commercial work - the full air duct service list for Castle Hills, with free inspections and the same crew on every job. This page covers air duct in Castle Hills, TX 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. The visit also covers the returns, where a leaking return has often been pulling attic dust straight into the system. The crews behind air duct cleaning in Castle Hills, TX are the same ones who cover the ZIP codes listed below.

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

Cleaning & Care Air Duct Inspection

For a Castle Hills new build, the inspection shows exactly how much construction dust the system started life with. 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 Castle Hills, TX runs on one standard: done properly, checked, and shown to you before we leave.

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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. Around Castle Hills, we repair slab-home attic systems and two-story dual systems alike, one trunk at a time. We repair and rebuild damaged sections so airflow is strong and even again. For air duct repair in Castle Hills, TX, 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 Castle Hills, garage conversions and additions get ductwork sized, sealed and balanced properly instead of tied in as an afterthought. That local standard is what air duct installation in Castle Hills, TX means with Air Duct Service Co.

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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. The sealing visit starts with a leak check, so you see where the air was going before we close it up. Booking air duct sealing in Castle Hills, TX takes one call, and the tech arrives with everything the job needs.

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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 Castle Hills — scheduled commercial duct cleaning with the same negative-air machine sealed onto the trunk, keeping your space comfortable, compliant and breathing clean. Around Castle Hills, multi-unit buildings get a unit-by-unit plan, with each system cleaned from its own trunk. That local standard is what commercial air duct cleaning in Castle Hills, TX means with Air Duct Service Co.

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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

Castle Hills ducts have Castle Hills problems

A duct system in Castle Hills cools through a brutal, months-long season from inside a superheated attic. This is what we actually find here, and what we check on every visit.

The longest cooling season there is

From spring to well past the start of football season, Castle Hills systems run daily. That runtime moves a dust load through the house more times in one summer than a northern system manages in three years - which is why duct condition shows up here as dust on everything, all the time.

Cedar, oak and grass pollen

Texas pollen is famous for a reason - cedar in winter, oak in spring, grasses after that. Return ducts store each wave and recirculate it between seasons, so the house keeps a pollen reserve long after the outdoor count drops.

Construction dust in booming suburbs

Growth around Castle Hills means subdivisions going up fast, and systems routinely run during drywall and paint to keep crews working. New ducts start life loaded with construction dust, and owners in fresh homes often notice gritty dust within the first year.

Dust storms and dry wind

Dry, windy stretches blow fine soil dust across Bexar County and into every house, through door gaps, attic vents and the system itself. It is abrasive, it loads filters quickly, and what passes the filter settles in the low spots of the trunk and returns.

Castle Hills sits in Bexar County, and the ZIP list at the bottom of this page covers 1 serviceable ZIP codes — 78213 through 78213. The closest served neighbors are Balcones Heights, San Antonio, Shavano Park, 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 Castle Hills asks

Why is the far bedroom always hot?

It sits at the end of the longest attic run, and that run sags, kinks or leaks on the way in most Bexar County homes. Air arrives weak and warmed. Tracing the run on inspection, then repairing, re-strapping and sealing it, is the usual fix - no larger AC required.

What are the signs my ducts are leaking?

Rooms that never reach the set temperature, an AC that runs long cycles on ordinary days, dust that returns quickly after cleaning and an attic hatch that feels cool when the system runs. Failed tape in attic heat is the standing Castle Hills culprit, and mastic sealing is the lasting repair.

We just bought a new build - is cleaning needed already?

Often, yes. In fast-growing areas around Castle Hills, systems run during construction, and drywall dust packs into new ductwork before move-in. The free camera inspection settles it in minutes - if the trunk is clean, we say so and leave.

Do you clean ducts in commercial buildings here?

Yes - offices, restaurants, retail, medical suites and multi-unit buildings across Castle Hills, 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.

Will sealing my ducts lower my cooling bill?

In Castle Hills, sealing is usually where the savings live: cooled air leaking into an attic is a direct loss on every cycle of the longest cooling season in the country. We leak-check on every inspection and tell you plainly which work would pay off.

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

Castle Hills, TX ZIP codes we serve

Air Duct Service Co is a national company with local technicians serving Castle Hills street addresses across the ZIP codes below — same-day service and free estimates, every day 8 AM – 8 PM. More of Texas is covered from our Texas page. The Castle Hills list below covers 1 ZIP codes, 78213 through 78213.

78213

Don't see your ZIP? Castle Hills 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: Balcones Heights, TX · San Antonio, TX · Shavano Park, TX · Alamo Heights, TX · Terrell Hills, TX · Hill Country Village, TX.