A Hollis company - serving Dallas, TX

Before & After Gallery - Hollis Air Duct Dallas

Whole-home duct cleaningWhole-home duct cleaning
Dryer vent cleaningDryer vent cleaning
Camera inspectionCamera inspection
Sanitizing & deodorizingSanitizing & deodorizing
Every visit starts with

Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents

Worth knowing

That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.

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Air Duct Cleaning Before & After in Dallas, TX

Most Dallas homeowners have never seen the inside of their own ducts. That’s the whole problem. When we finish a job, we show you photographs of what came out and what the system looks like now. The difference is not subtle. Here are representative projects from homes around Dallas. Photos are added to this gallery as we complete jobs, so what you see below reflects real work in this city.

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Styles & brands we work with

Whole-home duct cleaning
Whole-home duct cleaning
Dryer vent cleaning
Dryer vent cleaning
Camera inspection
Camera inspection
Sanitizing & deodorizing
Sanitizing & deodorizing

Recent Transformations

Return Duct in a 1990s Lake Highlands Home

BeforeBeforeAfterAfter
Placeholder: before photo showing a gray mat of dust and pet hair across the return grille, then an after photo of the same grille with clean metal slats.

The homeowner called because one bedroom never cooled the way the others did. When we pulled the return grille, the back side looked like a felt pad. Years of dust, drywall fines from a 2015 remodel, and two golden retrievers’ worth of hair had built up against the grille. We ran a Rotobrush rotary brush through the full return run while a Nikro negative-air machine kept the collected debris from re-entering the living space. Airflow to that bedroom went from barely moving a tissue held at the vent to passing the same test easily. The dry photos show a gray-brown mat; the after photos show bare galvanized metal.

Kitchen Exhaust and Supply Lines in a Richardson Rental

BeforeBeforeAfterAfter
Placeholder: before photo of a duct interior lined with hardened grease and dust, then an after photo of the same duct with clean metal surfaces.

This one had been cooking-heavy for six years with no duct service. The kitchen exhaust duct had a film of hardened grease that caught the light when we scoped it. Supply lines were carrying construction dust from when the unit was flipped before the tenants moved in. We used a rotary brush followed by negative-air extraction to pull the loosened material out rather than pushing it around. The owner sent photos to the tenants and renewed for another year the following week. When a landlord can show tenants what the ducts look like after cleaning, it changes the conversation about maintenance.

Dryer Vent Full-Bore Clog in an Oak Cliff Bungalow

BeforeBeforeAfterAfter
Placeholder: before photo showing lint packed to the vent opening, then an after photo showing the full vent run clear to daylight at the exterior cap.

This job started as a dryer that took two cycles to dry a single load. The vent run was short but had two 90-degree elbows, and both were packed solid. The exterior flapper had not opened fully in months. We cleared the run and showed the homeowner the pile we pulled out: roughly a two-gallon bucket’s worth of lint and a dryer sheet that had been hung up on a screw head for what looked like a long time. The dryer now finishes loads in one cycle, and the exterior vent opens the way it should. Oak Cliff’s older homes often have short vent runs, but the elbows are where lint packs in.

Supply Register Restoration in a Preston Hollow Condo

Technician performing professional HVAC air duct cleaning service
Placeholder: before photo of a register with dark staining around the edges and a blanket of dust on the vanes, then an after photo of the same register wiped clean with the metal bright.

The staining around this register was not dust. It was air leakage pulling unfiltered attic air through the gap where the register boot met the ceiling drywall. That pulls fine dust into the room and darkens the paint over time. We cleaned the register and the visible section of duct, then sealed the boot connection with mastic so the leak stopped pulling attic air. Roy Castellanos showed the homeowner the darkened insulation around the boot in the before photo. The after photo shows a clean register and a sealed connection. That staining does not come back.

Post-Renovation Duct Cleanout in a North Dallas Townhome

Professional technician performing residential air duct cleaning service with vacuum equipment
Placeholder: before photo of a duct floor covered in drywall dust and paint chips, then an after photo of the same duct with a clean interior.

The owners had finished a kitchen remodel and noticed a film of white dust on every flat surface within a day of dusting. That is drywall dust cycling through the system. The contractor had not sealed the ducts during demolition, and the return pulled in dust for three weeks straight. We cleaned every supply and return line, replaced the filter, and ran the negative-air machine while doing so. The after photos show duct interiors that look new. If you have renovated in the last year and have not had the ducts cleaned since, you are breathing whatever the crew kicked up.

Asbestos-Wrapped Duct Inspection in an East Dallas Mid-Century

Technician using professional air duct cleaning equipment in a residential home
Placeholder: before photo of original ductwork with aged insulation wrap, then an after photo showing cleaned duct interiors with the wrap intact and documented.

We document older systems before any work starts. In this East Dallas house from 1962, the ducts had original insulation wrapping that we treated as suspect until proven otherwise. We did not disturb the wrap. We scoped the interior, showed the homeowner what was inside, and cleaned the accessible sections while keeping the negative-air machine running. The after photos show what a 60-year-old system looks like when it is cleaned properly: the metal inside is in decent shape, the wrap is untouched, and the airflow is noticeably better. If your home predates 1970, we photograph everything before and after so you know exactly what was done and what was left alone.

Want Results Like These?

Every job above started with a phone call and a written price. No surprises once we are inside, no vague promises about what you are paying for. We show you the before photos, the after photos, and the pile we pulled out. Call (361) 309-6223 to schedule your duct cleaning in Dallas. Roy Castellanos and the Hollis Air Duct Dallas crew will walk you through the whole thing in plain terms before anyone touches a vent.

Written by Roy Castellanos, Owner at Hollis Air Duct Dallas, serving Dallas since 2004.

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