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.
Before
After
Before
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Before
AfterAir Duct Cleaning Company in Downey, CA
Downey homeowners typically pay $350 – $650 for whole-house air duct cleaning, with most jobs scheduled within a week and completed in a single visit. The city’s 1950s-60s housing stock, built during the postwar boom, means we’re working with rigid galvanized ductwork that was never designed for modern central AC, often wrapped with aging asbestos tape and squeezed into tight slab chases or narrow attic spaces. That’s why Hollis Air Duct Cleaning prices every Downey job in writing before we start, backs it with our 365-Day Done Right Promise, and sends background-checked, uniformed technicians who’ve been trained on exactly this kind of crawl-and-reach work. Call us at (361) 326-5060 for a free estimate.
Why Downey Homes Are Different
Downey’s housing boom peaked in the 1950s and 1960s, and roughly 70% of homes here were built before 1970. Most are 3-bedroom, 1-bath ranch tract houses with original galvanized steel duct systems that were sized for wall furnaces, not the central AC units that were retrofit later. The original ducts are undersized, leaky at every seam, and often still wrapped with asbestos tape that our crews know how to work around without disturbing.
The slab-on-grade construction typical of this era means duct runs are buried under concrete or threaded through tight attic chases barely wide enough for a technician. In neighborhoods like North Downey and the streets near Brookshire Avenue, we’ve crawled through access hatches no larger than a closet door to reach trunk lines that haven’t been opened since Eisenhower was president. Summer temperatures in Downey regularly push past 95°F, and that constant AC cycling pulls dry dust through every crack; winter marine-layer humidity then condenses in those same leaks, creating the seasonal expansion and contraction that widens gaps year after year. This isn’t a flex-duct swap job. It’s specialized restoration work on a system that was never meant to do what it’s doing now.
Our Main Downey Services
Most Downey homeowners call us for one of three jobs, each shaped by the city’s unique postwar construction.
Air Duct Cleaning in Downey
We clean rigid galvanized trunk and branch lines using Rotobrush rotary brush systems and Nikro negative-air machines that pull loosened debris out of the duct rather than pushing it into your home. In Downey, this means working around original wall furnace plenums and navigating tight slab chases where modern flexible ducting would never fit. We photograph the before condition through our scope and show you the after, because with ducts you can’t see, proof matters. Air Duct Cleaning in Downey covers our full process and what to expect.
Dryer Vent Cleaning in Downey
Dryer vents in Downey’s older homes often run through walls or under slabs in routing that doesn’t meet modern code, creating longer paths and more lint accumulation points than newer construction. We clean the full run from appliance to exterior termination, checking for the crushed or sagging sections we commonly find in 1960s tract houses. Dryer Vent Cleaning in Downey explains our flat-rate pricing and what’s included.
Duct Sealing in Downey
Sealing is often the most cost-effective upgrade for Downey’s leaky galvanized systems. We apply duct sealing mastic and mechanical fasteners at every joint and seam we can access, targeting the 20 – 30% conditioned air loss typical of these original trunks. In some homes, we pair this with Guardsman filtration products to catch what still escapes. Duct Sealing in Downey details how we price and perform this work.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Downey
We stock parts and filtration products from Honeywell, Aprilaire, and Guardsman, with Abatement Technologies HEPA equipment on every truck. Most common replacements are available same-day; specialty Aprilaire media filters typically arrive within 24 hours. Our brands page lists the full lineup.
Pricing for Air Duct Cleaning Company in Downey, CA
| Service | Typical range in Downey |
|---|---|
| Whole-house air duct cleaning (single system) | $350 – $650 |
| Whole-house air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning | $120 – $220 |
| Duct sealing (single system, accessible trunk) | $400 – $800 |
| Duct sealing with access panel installation | $600 – $1,100 |
| HVAC mold remediation (per system) | $450 – $900 |
| Register/grille cleaning and reinstallation | $15 – $35 per register |
| Return air chase cleaning | $150 – $300 |
Downey prices run toward the higher end of these ranges when ducts are under slab with limited access, when asbestos tape requires containment protocols, or when we need to cut and restore access panels in drywall or stucco. We write the price down before any work starts, and that number does not move at the door. No per-vent add-ons, no equipment surcharges, no surprises.
Neighborhoods We Serve in Downey
We work across all of Downey’s established neighborhoods, from the original 1950s tracts to the infill areas near the I-105 corridor. Most Downey appointments are scheduled within 3 – 5 business days, with dispatch coordinated from our Los Angeles office and crews arriving inside the quoted window.
- North Downey
- South Downey
- Apollo
- Rio Hondo
- West Downey
Service Area – Cities Near Downey
Our crews regularly work the corridor southeast of downtown LA, including Bell Gardens, CA, Santa Fe Springs, CA, Paramount, CA, and Bellflower, CA. Scheduling and routing are handled from our Los Angeles office to keep arrival windows tight across the service area.
Serving Downey, CA - Our Local Coverage Area
We’re based in the Downey 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 Company in Downey
No permit is required for standard air duct cleaning or dryer vent cleaning in Downey. Duct sealing that involves modifying or replacing duct sections may require a permit if it alters the original HVAC design; we check this during our estimate and handle any filing if needed. Call (361) 326-5060 and we’ll confirm your specific situation.
Most Downey appointments are scheduled within 3 – 5 business days, with same-week openings available depending on route density. We dispatch from our Los Angeles office and quote a 2-hour arrival window, not an all-day wait. Call (361) 326-5060 to check this week’s availability.
We work in all Downey neighborhoods, including HOA-gated communities. We carry general liability and workers’ compensation insurance, and we’ll provide a certificate of insurance to your HOA upon request. Our technicians arrive in marked vehicles and uniform, so your property manager knows who is on site. Call (361) 326-5060 to arrange any HOA documentation ahead of your appointment.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Downey Customers Say
"No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H."Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O.