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.
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AfterFast, Reliable Air Duct Cleaning Across Montebello
Air duct cleaning in Montebello typically runs $350 – $650 for a full residential system, and most jobs are scheduled within a few days of your call. Our crews work Montebello regularly, dispatching from our Los Angeles office to homes from the 60 Freeway corridor down to Whittier Boulevard and the neighborhoods near Grant Rea Park. We know the housing stock here: pre-1960s ranches, post-war bungalows, and small duplexes with original ductwork that most owners have never had cleaned. Call (361) 326-5060 for a free estimate and we’ll give you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Montebello’s Preferred Air Duct Cleaning Company
We’ve been cleaning ducts in Montebello since long enough to know the patterns. The 1940s gravity-furnace returns with no filter slot. The low, unlined attics where crews from other outfits skip the plenum because it’s a tight crawl. The thick gray coating inside original sheet-metal ducts that homeowners call us about, worried it’s mold. It’s not mold. It’s decades of freeway soot, dust, and oily residue from unfiltered air moving through the same ducts since Truman was president.
Our Air Duct Cleaning team arrives in uniform, background-checked, and on time. The price we write down before we touch anything is the price you pay. No per-vent add-ons, no equipment charges that appear halfway through the job. Every repair and cleaning 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. Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues.
Roy Castellanos built this operation on The Garrison Standard: arrive inside the window, price in writing, complete the job by the book, leave the site clean. That’s how we work in Montebello. That’s how we work everywhere.
Air Duct Repair in Montebello
Air Duct Repair in Montebello usually means sealing leaky seams in original sheet-metal runs, reconnecting separated flex sections, or replacing collapsed ductwork in tight attic spaces where 1950s construction didn’t leave much room to move. A typical repair here runs $280 – $550 depending on access and material, with most jobs completed in a single visit. We see the same failure modes across the city: seams that have worked open after seventy years of thermal cycling, flex duct crushed by a homeowner stepping through the attic, and return plenums pulling hot, dusty attic air because the tape gave out in 1987.
Sealing and Reconnecting Original Sheet-Metal Runs
Most Montebello homes built before 1960 use galvanized sheet-metal ductwork with snap-lock seams and old cloth tape. The tape dries and falls off. We remove the failing material, reseal with mastic and mesh, and pressure-test the joint so you know it’s tight before we close the attic. This matters because leaky supply ducts cool your attic instead of your bedroom, and leaky returns pull fiberglass and dust straight into your air handler.
Replacing Collapsed or Damaged Flex Sections
When a prior contractor ran a rotary brush through original ducts without camera inspection first, flex sections often collapse or pull free at the collar. We inspect with a borescope before any agitation, replace damaged flex with properly sized, insulated runs, and secure with mechanical fasteners, not tape alone. The Garrison Code requires we show you the damage on camera before we quote the fix.
Ductwork Cleaning in Montebello
Ductwork Cleaning in Montebello is a different job than in newer cities. Here we’re not removing construction dust from a 2023 build. We’re extracting seventy years of accumulated debris from original ductwork that was never designed for filtration, never sealed properly, and often never touched since installation. A full residential system cleaning runs $350 – $650, with larger homes or systems requiring access through low attics toward the higher end. Commercial ductwork in Montebello’s small retail and restaurant spaces along Whittier Boulevard typically runs $800 – $1,400.
Source Removal with Negative-Air and HEPA Filtration
We set up a Nikro negative-air machine at your air handler, creating suction through the entire duct system while we agitate debris with a Rotobrush rotary brush system at each register. A HEPA filter on the collection machine traps particles down to 0.3 microns, so nothing recirculates into your living space during cleaning. You see the before-and-after footage on our monitor before we pack up.
Register, Grille, and Blower Motor Cleaning
The dirtiest part of many Montebello systems isn’t the duct, it’s the return plenum and blower motor. Because original gravity-furnace returns have no filter slot, the blower wheel cakes with debris and loses efficiency. We remove and clean the blower assembly, clean the evaporator coil if accessible, and treat the return plenum as part of the system, not an afterthought. Crews who skip this leave the dirtiest run untouched.
Trusted Brands We Service in Montebello
We clean and repair ductwork connected to all major HVAC brands, and we stock filtration and sealing products from Aprilaire, Abatement Technologies, and Guardsman for Montebello customers who want to upgrade while we’re already in the system. Aprilaire media air cleaners replace those missing filter slots on original gravity-furnace returns. Guardsman duct sealing products close the gaps in leaky sheet-metal runs. Abatement Technologies HEPA equipment protects your home during the cleaning itself. We don’t sell you what you don’t need. We explain what your system is missing, what it costs, and let you decide.
Common Air Duct Cleaning Problems We See in Montebello Homes
- The “mold” that’s actually freeway soot. In older Montebello homes near the 60 Freeway and Whittier Boulevard, ash and fine soot from decades of traffic settle in return ducts and mix with household dust into a thick gray paste. Homeowners call us panicked. A camera inspection shows the truth, and proper source removal clears it without unnecessary biocide treatments.
- Original gravity-furnace returns with no filter slot. Many 1940s – 50s Montebello homes were built with gravity-furnace ducting that has no place to install a filter. Nobody has ever changed a filter because there is no filter. Debris accumulates for seventy years straight. We identify this, clean the system, and recommend proper filtration upgrades so it doesn’t happen again.
- Crews who skip the return plenum because the attic is too tight. Montebello’s low, unlined attics make access difficult. Less careful technicians clean only what’s visible from the registers, leaving the dirtiest components untouched. We size our equipment for tight spaces and photograph every section we clean so you know the job was complete.
- Rotary brush damage to original ducts. A contractor who runs a brush down 1950s sheet-metal without first inspecting with a camera can collapse flex sections and separate seams. Then the system pulls attic air straight into your supply. We inspect first, always. The Garrison Standard requires it.
Pricing for Air Duct Cleaning in Montebello, CA
Most full residential duct cleanings in Montebello fall between $350 and $650. Here’s how that breaks down:
- Small home (under 1,200 sq ft), single system, good access: $350 – $450
- Mid-size home (1,200 – 2,000 sq ft), standard access: $450 – $550
- Larger home or home with difficult attic access, multiple returns: $550 – $650
- Commercial ductwork, restaurants, small retail: $800 – $1,400
- Air Duct Repair (sealing, reconnecting, replacing sections): $280 – $550
- Video inspection as standalone service: $150 – $250
What moves you within these ranges? Attic access difficulty, number of supply and return registers, whether the blower motor and plenum need cleaning too, and the condition of the existing ductwork. A 1950s ranch with original sheet-metal, no filter slot, and a low attic takes longer than a 1980s home with updated flex and a walk-in attic. We assess all of this during your free estimate, write the price down, and that’s what you pay. No per-vent charges. No equipment fees added at the door. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Montebello
Our crews clean ducts across the San Gabriel Valley and southeastern Los Angeles County. We regularly work in Montebello and the surrounding communities: Pico Rivera to the southeast, Monterey Park to the northwest, Rosemead to the north, and Bell Gardens to the south. Same standards, same written pricing, same 365-Day Done Right Promise in every city we serve.
Serving Montebello, CA - Our Local Coverage Area
We’re based in the Montebello 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 Montebello
It’s almost certainly not mold. In Montebello’s 1940s – 60s homes, especially near the 60 Freeway, that gray paste is typically decades of oily dust mixed with freeway soot and fine ash. Original gravity-furnace returns had no filter slot, so debris accumulated continuously for seventy years. We verify with camera inspection before cleaning, then remove the material with negative-air extraction and HEPA filtration. Call (361) 326-5060 and we’ll show you exactly what’s in your ducts.
We clean the blower motor, return plenum, and air handler as part of a full system cleaning. In Montebello homes with original ductwork, these components are often the dirtiest parts of the system because unfiltered return air has been hitting them for decades. Skipping them means recirculating debris the moment we leave. We photograph before and after so you see the difference.
We seal each register before agitation and maintain negative pressure throughout the system with a Nikro HEPA-filtered collection unit at the air handler. This means air flows toward our machine, not into your rooms. We also block return openings and run the system only on our equipment, never your blower, during the cleaning process.
Yes. We’ve cleaned ducts in Montebello attics where the clearance is eighteen inches. Our equipment is sized for tight spaces, and our technicians are trained to work safely in constrained areas. The Garrison Code requires we photograph every section we clean, so you’ll see proof we reached the full system, not just the easy parts.
Every three to five years for most Montebello homes with original ductwork, sooner if you have pets, recent remodeling, or occupants with allergies. Homes with no filter slot on the return, which is common in 1940s – 50s construction here, may need more frequent attention until proper filtration is installed. We’ll assess your specific system and give you an honest recommendation during your free estimate. Call (361) 326-5060 to schedule.
Ready to see what’s actually inside your ducts? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free, no-obligation estimate. We’ll inspect your system with a video camera, explain what we find in plain terms, and give you a written price before any work begins. Every job is backed by our 365-Day Done Right Promise: if it’s not right, we make it right at no charge. Roy Castellanos and our team serve Montebello with the same discipline we’ve brought to every home since 2004 – show up on time, price it in writing, do it by the book, leave it clean.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Montebello and the San Gabriel Valley since 2004.