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 Florence-Graham
Air duct cleaning in Florence-Graham typically runs $280 – $520 for a full residential system, and our crews are usually on-site within a few days of your call. We’re the Air Duct Cleaning team that knows this unincorporated pocket of South LA, from the bungalows near 85th Street to the fourplexes lining Florence Avenue and Santa Fe Avenue. Scheduling and dispatch are coordinated from our Los Angeles office, but the trucks that roll to Florence-Graham carry Rotobrush rotary systems and Nikro negative-air machines sized for the tight crawlspaces and shared attics common here. Call (361) 326-5060 for a free estimate, or read on for what we actually find in Florence-Graham ducts and what honest pricing looks like.
Why Hollis Air Duct Cleaning Is Florence-Graham’s Preferred Air Duct Cleaning Company
We’ve been serving Florence-Graham since 2004 as part of the Garrison Partners family, and our reputation here was built on showing up inside the window we quoted, pricing in writing before we touch anything, and leaving the site clean. Our technicians are background-checked, uniformed, and held to The Garrison Code: arrive squared away, explain what you’re paying for, do it by the book.
The 365-Day Done Right Promise covers every job we do in Florence-Graham. If the work fails within a year, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround.
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 schedule your Air Duct Cleaning in Florence-Graham.
We know the local housing stock: the 1920s – 1960s bungalows with original wall furnaces, the two- to four-unit buildings where ducts run through shared attics, the exhaust fans venting into wall cavities instead of outside. That knowledge changes what we look for and how we quote the job.
Air Duct Inspection in Florence-Graham
Air Duct Inspection in Florence-Graham starts with understanding what kind of building we’re walking into, because a 1940s fourplex off Santa Fe Avenue is a completely different job than a 1960s bungalow near 87th Street. Our inspection runs $120 – $180 and includes video camera access of the main trunk lines, blower motor compartment, and any shared attic or crawlspace runs we can safely reach. We document what we find, show you the footage, and give you a written price for any cleaning or sealing before we proceed.
What We Look for in Older Systems
Wall furnaces and floor furnaces in Florence-Graham’s pre-1960s stock often have undersized return ducts pulling air through wall cavities instead of dedicated ductwork. We check whether your system has actual ductwork or is circulating through unsealed framing spaces, because that changes whether “duct cleaning” is even the right service.
Shared Attic and Cross-Unit Contamination
In the fourplexes along Florence Avenue, one air handler frequently serves multiple units through duct runs in a shared attic. Our inspection maps which ducts belong to which unit and whether contamination is migrating through gaps in the plenum or unsealed wall connections. Cleaning one unit’s ducts while ignoring cross-unit pathways wastes your money.
Residential Air Duct Cleaning in Florence-Graham
Residential Air Duct Cleaning in Florence-Graham means source removal: we put the duct system under negative pressure with a Nikro HEPA-filtered vacuum, then agitate debris loose with a Rotobrush rotary whip system so it gets captured at the source rather than blown through your home. A typical single-family bungalow runs $280 – $420; a multi-unit fourplex with shared attic ductwork runs $380 – $520 depending on access and contamination level. Every job gets a written price before we start, and that price does not move at the door.
Renter Advocacy and Landlord Coordination
Most Florence-Graham residents rent, and many landlords have never paid for duct cleaning. We work directly with property owners when possible, but we also document our findings for renters who need to make their case. Our written inspection report with video footage gives you evidence that stands up in a habitability discussion.
Exhaust Fan and Attic Ventilation Corrections
We routinely find bathroom exhaust fans in Florence-Graham fourplexes venting straight into the attic or wall cavity, not outside. During duct cleaning, we’ll flag this, show you the lint buildup and moldy sheathing it’s causing, and quote a proper exterior vent installation if you want it handled. The ducts can’t stay clean if the attic is pumping moisture and lint back into the system.
Trusted Brands We Service in Florence-Graham
Our trucks stock filtration and sealing products from Aprilaire, Abatement Technologies, and Guardsman, the same brands commercial crews use in hospitals and schools. For Florence-Graham’s older housing stock, we often recommend Aprilaire media air cleaners that drop into existing return plenums without duct modification, or Duct Sealing in Florence-Graham using Guardsman flexible products for the cracked, unsealed runs common in 1950s construction. We don’t upsell equipment you don’t need, but we carry it so we’re not making a second trip when your 60-year-old system actually does need a compatible part. Fast turnaround matters here because the Santa Ana winds don’t wait.
Common Air Duct Cleaning Problems We See in Florence-Graham Homes
- Cross-unit contamination in fourplex attics. Ducts from multiple units share the same attic space with no physical separation. We clean one unit’s supply and return, but dust and debris migrate back through gaps in the plenum or unsealed boot connections within weeks.
- Exhaust fans venting into wall cavities and attics. In the older buildings along Florence Avenue and Santa Fe Avenue, bathroom and kitchen fans dump moist, lint-laden air directly into the building envelope. This creates mold on roof sheathing and feeds debris into air handler compartments.
- Undersized return ducts pulling through wall framing. Many 1920s – 1940s bungalows never had proper return ductwork installed. The system “returns” air through gaps in wall studs and floor cavities, meaning you’re trying to filter air that’s already passed through unsealed construction spaces full of decades of dust.
- Wall furnace registers blowing black grit before heat waves. Because Florence-Graham’s mild basin climate never forces the issue, ducts sit untouched for decades until a tenant finally complains. By then, the debris layer is thick enough to visible puff out when the blower kicks on.
Pricing for Air Duct Cleaning in Florence-Graham, CA
| Service | Typical Range in Florence-Graham |
|---|---|
| Air Duct Inspection with video | $120 – $180 |
| Single-family bungalow (full system) | $280 – $420 |
| Multi-unit fourplex with shared attic | $380 – $520 |
| Duct sealing with mastic (per system) | $180 – $340 |
| Dryer vent cleaning (add-on) | $85 – $140 |
What moves the price: access difficulty (crawlspace versus attic), contamination level, whether we need to coordinate with a landlord for multi-unit buildings, and whether we find exhaust fans or plenum gaps that need sealing to make the cleaning last. We quote one flat price per system, agreed in writing before work starts. No per-vent pricing, no teaser coupon that balloons once we’re inside. Call (361) 326-5060 for an exact quote on your Florence-Graham property, estimates are free.
We Also Serve Cities Near Florence-Graham
Our crews cover the full LA Basin and beyond, including Florence-Graham, Los Angeles, San Diego, San Jose, and San Francisco. Each location operates independently under The Garrison Standard with the same written pricing, background-checked technicians, and 365-Day Done Right Promise.
Serving Florence-Graham, CA - Our Local Coverage Area
We’re based in the Florence-Graham 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 Florence-Graham
Every 5 – 7 years for most Florence-Graham homes, but the unincorporated rental stock here often goes 20+ years untouched. The mild, dry climate doesn’t force the issue, so cleaning happens when visible debris starts blowing from registers or when a new tenant moves in and notices odors. Call (361) 326-5060 and we’ll inspect before quoting any work.
Yes, but shared-attic systems require landlord coordination or written permission to access common areas. We document cross-unit contamination with video and provide a report you can share. Some landlords pay once they see evidence of habitability issues; others need tenant-initiated service. We quote either way.
Source removal under negative pressure, not just blowing compressed air through vents. We pull the air handler panel, clean the blower motor and housing, agitate debris with a rotary brush system, and capture it with HEPA filtration. For older homes, we also inspect whether you have actual ductwork or air returning through wall cavities. Call (361) 326-5060 for an inspection.
Bathroom exhaust fans venting into attics instead of outside dump moist air directly onto roof sheathing year after year. The warm LA Basin climate keeps it active, and the shared attic spaces mean multiple units contribute. Duct cleaning alone won’t fix it; we flag the exhaust venting issue and can quote proper exterior venting.
Florence-Graham sits in the basin where Santa Ana winds pull freeway particulate, pollen, and fine desert dust through open windows and return-air leaks. The density of 1920s – 1960s construction with unsealed ductwork means that grit accumulates faster than in newer, tighter buildings. Combined with decades of no cleaning in rental stock, the debris layer is often substantial. Call (361) 326-5060 for a free inspection and honest quote.
Ready to Get Your Florence-Graham Ducts Cleaned Right?
We’re not the cheapest outfit in LA, and we don’t try to be. We’re the crew that shows up in uniform, gives you a written price before touching anything, and comes back free if the work fails within a year. That’s The Garrison Standard, and it’s how we’ve operated since 2004. For air duct cleaning in Florence-Graham that actually addresses the cross-unit contamination, exhaust fan venting, and decades of neglected debris common in this unincorporated pocket, call (361) 326-5060. Estimates are free, and a live person answers the phone 24/7.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Florence-Graham since 2004.




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