Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
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.
Fast, Reliable Air Duct Cleaning Across Avocado Heights
Air duct cleaning in Avocado Heights typically runs $350 – $650 for a whole-house residential system and is scheduled by appointment, not emergency dispatch. Most Avocado Heights homes need cleaning every 2 – 3 years, not the standard 5 – 7, because equestrian-zoned properties here pull horse dander, arena dust, and Santa Ana grit into return ducts at rates we don’t see in neighboring cities.
We’re Hollis Air Duct Cleaning, and our crews serve Avocado Heights from our Los Angeles scheduling office. We know the half-acre ranchettes off Avocado Heights Park Road, the 1970s ranch homes with original flex duct in the attic, and the evaporative coolers that share ductwork with forced-air systems. If your registers blow dust after a wind event, or your blower motor is working harder than it should, we’ll show you why and give you a written price before we touch anything. Call (361) 326-5060.
Why Hollis Air Duct Cleaning Is Avocado Heights’s Preferred Air Duct Cleaning Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Air Duct Cleaning team has built a reputation in unincorporated San Gabriel Valley communities by doing what we said we’d do. In Avocado Heights, that means showing up inside the quoted window, pricing the job in writing before the first register comes off, and leaving the site clean.
Our technicians are background-checked and uniformed, and they carry the same Rotobrush and Nikro equipment commercial crews use. We don’t send salespeople who turn estimates into invoices at your door. The price we write down is the price you pay.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to book a Wednesday slot.
Every job carries our 365-Day Done Right Promise. If the work fails within a year, we come back and make it right at no charge, including a free second visit. That’s not a slogan; it’s written on every contract.
Air Duct Repair in Avocado Heights
Air Duct Repair in Avocado Heights means fixing the disconnected flex-duct joints, crushed attic runs, and corroded evaporative-cooler transitions that are common in 1970s ranch and Spanish-style homes here. Repair runs $180 – $420 depending on whether we’re resealing a few joints or replacing a collapsed section of original duct. Most Avocado Heights homeowners need repair when rooms stop heating or cooling evenly, or when blower motor amp draw climbs because the system is fighting restricted airflow.
Disconnected Flex-Duct Joints
Original 1970s flex duct in Avocado Heights attics was secured with metal straps and mastic that degrades after fifty years. We find supply runs that have pulled loose from plenums, dumping conditioned air into the attic and starving the rooms below. Our repair reconnects with mechanical fasteners and fresh duct sealing mastic, then tests static pressure to confirm the fix.
Evaporative-Cooler Transition Damage
Many Avocado Heights homes still run evaporative coolers through the same ductwork as their central AC. The seasonal swap-over stresses the transition collar, and we’ve replaced dozens that have rusted through or separated entirely. A proper repair includes a galvanized transition, fresh sealant, and verification that both systems can operate without cross-leakage.
Ductwork Cleaning in Avocado Heights
Ductwork Cleaning in Avocado Heights is source removal, not a surface wipe. We use Rotobrush rotary brush systems under Nikro negative-air pressure to agitate debris loose and capture it at the source, exhausting through HEPA filtration. A typical whole-house cleaning runs $350 – $650 here, with larger equestrian properties on half-acre lots sometimes reaching $750 – $950 because of extended duct runs and heavier loading. Most Avocado Heights homeowners schedule cleaning when they see dust puffing from registers, smell stable odors in the HVAC airflow, or notice the blower motor straining.
The Equestrian Loading Factor
Return-air ducts on homes near backyard corrals pull in horse hair, arena dust, and poultry-feed particles that standard suburban systems never see. After Santa Ana wind events, we’ve found visible mats of hair and dust on the first four feet of flex duct. Our cleaning targets that zone specifically, not just the easy-to-reach registers.
Evaporative-Cooler Lint Pathways
When your cooler shares ductwork with the AC, pad lint accumulates in a separate pathway that a basic cleaning misses. We clear both streams, so debris doesn’t re-circulate on the next cooling cycle. That extra step is built into our Avocado Heights pricing, not added at the door.
Trusted Brands We Service in Avocado Heights
Our equipment roster includes Rotobrush rotary brush systems for agitation, Nikro negative-air machines for source removal, and filtration products from Honeywell, Aprilaire, and Guardsman. We don’t use hardware-store vacuums with brush attachments. For Avocado Heights homeowners, that means the same tools commercial crews deploy on school and municipal jobs, maintained and calibrated for residential ductwork. We stock common flex-duct diameters, transition collars, and mastic supplies locally, so repairs that would take a week of ordering elsewhere get finished on the first visit.
Common Air Duct Cleaning Problems We See in Avocado Heights Homes
- Santa Ana dust loading in return ducts. Hot, dry San Gabriel Valley summers and Santa Ana wind events drive fine grit from nearby stables and horse trails into return-air grilles. The dust doesn’t stay in the filter; it mats on the first few feet of flex duct and slowly chokes airflow.
- Horse hair accumulation near corral-side bedrooms. On half-acre equestrian lots, return registers in rooms closest to the arena pull in a constant stream of hair and dander. We’ve found four-inch-thick mats that standard filter changes never touch.
- Evaporative-cooler lint sharing forced-air runs. Pad lint from summer cooler operation builds up in duct sections that don’t see airflow in winter. When the AC kicks on, that lint distributes through the house until source removal clears the full pathway.
- Original 1970s flex duct reaching end of service life. The plastic lining cracks, the insulation compresses, and the wire helix corrodes in hot attics. Cleaning reveals damage that repair or replacement should address before the next season.
Pricing for Air Duct Cleaning in Avocado Heights, CA
Whole-house residential duct cleaning in Avocado Heights runs $350 – $650 for most single-story homes, with larger equestrian properties on extended lots ranging $750 – $950. Commercial systems start around $800 and scale with square footage and access difficulty. What moves the number: total linear feet of duct, number of supply and return registers, whether evaporative-cooler lint pathways need separate cleaning, and how accessible the attic or crawl space is.
We give one flat price per system, agreed in writing before work starts. No per-vent pricing. No add-ons at the door. We take before-and-after photos of your own ducts so you see what was there and what we removed. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Avocado Heights
Our crews travel throughout the region for scheduled appointments. We regularly clean ducts for homeowners in Avocado Heights and surrounding communities including Los Angeles, San Diego, San Jose, and San Francisco. Scheduling and dispatch are coordinated from our Los Angeles office.
Serving Avocado Heights, CA - Our Local Coverage Area
We’re based in the Avocado Heights area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Avocado Heights
Every 2 – 3 years, not the 5 – 7 years that holds for non-equestrian neighborhoods. The return-air load from horse hair, arena dust, and Santa Ana grit is simply higher here. Call (361) 326-5060 and we’ll assess your specific setup.
Yes. The cooler pushes pad lint into duct sections that don’t see airflow when it’s not running, so we clean that separate lint pathway in addition to the forced-air runs. Skipping it leaves debris that re-circulates on the next AC cycle. We include both in our written price.
The equestrian zoning and 1970s housing stock create a unique debris profile. Homes near corrals load return ducts with horse hair and arena dust after every Santa Ana event, and original flex duct traps that material where rigid metal duct would shed it. Our crews know to inspect the first four feet of flex duct nearest the corral, not just the registers.
We recommend it. Avocado Heights properties often have longer vent runs to exterior walls, and lint accumulation is a fire hazard independent of duct contamination. We can schedule both services on the same visit with one written price for the full scope.
Yes. NADCA source-removal standards require agitation of debris under contained negative pressure, with HEPA filtration on the exhaust. In practice, that means we don’t just vacuum registers; we mechanically agitate the full duct interior and capture dislodged debris at the source. For Avocado Heights homeowners, it means horse hair and arena dust actually leave the system, not just get pushed around.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Avocado Heights since 2004.




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