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 Alhambra
Air duct cleaning in Alhambra typically runs $350 – $650 for a full residential system, with most jobs completed in one scheduled visit. We dispatch crews from our Los Angeles office and serve Alhambra neighborhoods including those near Almansor Park, along Valley Boulevard, and throughout the 91801 and 91803 zip codes. If your home was built between 1945 and 1970, there’s a good chance the original ductwork has never been professionally cleaned, and may lack the return-air plenum and sealed joints that modern systems need to keep attic dust and San Gabriel Valley smog out of your living space. Call us at (361) 326-5060 for a free written estimate.
Why Hollis Air Duct Cleaning Is Alhambra’s Preferred Air Duct Cleaning Company
We’ve been cleaning and repairing duct systems in Alhambra since 2004, and our crew knows what to expect in the post-WWII ranch houses and 1960s apartment complexes that make up most of the local housing stock. Our technicians arrive uniformed and background-checked, following The Garrison Code on every job: show up inside the window, price it in writing before touching anything, complete the work by the book, and leave the site clean.
Our 365-Day Done Right Promise covers every job in Alhambra in writing. If the work fails within a year, we return 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. When you call (361) 326-5060, you speak to someone who can schedule your appointment, not a callback queue that disappears into voicemail.
We understand Alhambra’s specific conditions: the heavy tree canopy that drives pollen loads, the smog particulates that drift east from the 10 and 710 freeways, and the Santa Ana winds that force fine dust through every gap in original galvanized ductwork. That local knowledge changes what we bring to the job and what we look for once we’re inside your system.
Vent Cleaning in Alhambra
Vent cleaning in Alhambra means more than brushing off register covers. In the single-story ranch homes near Almansor Park and the two-story apartment buildings along Valley Boulevard, supply vents often sit at the end of undersized duct runs that have accumulated decades of dust, pollen, and smog particulates. We remove each register, agitate the duct walls with rotary brush systems from Rotobrush, and extract debris under controlled negative pressure so nothing escapes into your rooms.
When Supply Vents Stop Moving Air
If a vent blows weakly even with the fan on high, the duct behind it may be crushed, disconnected, or packed solid with buildup. We camera-inspect before we quote, so you see the blockage and we price the fix accurately.
Return Vent Buildup and Allergens
Return vents pull air back to the HVAC unit, and in Alhambra they collect pollen from the city’s mature tree canopy plus fine particulates from San Gabriel Valley smog. Cleaning these without negative-air containment just redistributes debris through the house. Our Nikro negative-air machines maintain suction throughout the job.
Air Duct Repair in Alhambra
Air Duct Repair in Alhambra is often the real solution behind a cleaning request. The post-WWII tract homes and 1960s apartment complexes here were built with galvanized steel ductwork that cracks at joints, crushes at attic crossings, and frequently lacks a proper return-air plenum. We find disconnected runs dumping attic air into crawlspaces, supply trunks pinched to half their diameter, and joints held together with failing tape that leaks conditioned air and pulls in dust.
Reconnecting Crushed Attic Runs
Original ductwork in Alhambra’s ranch homes was rarely built to handle modern HVAC loads. Hot San Gabriel Valley summers force systems to run harder, and weak spots in attic runs collapse under the strain. We rebuild or replace crushed sections and seal with mastic, not tape.
Return-Air Plenum Installation
Many Alhambra homes were built with return ducts that terminate open in crawlspaces or garages instead of drawing from a proper plenum. This pulls unfiltered air directly into your system. We fabricate and install sealed return plenums that connect every return duct to a single, filtered intake point.
Trusted Brands We Service in Alhambra
Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation, Nikro negative-air machines for containment and extraction, and filtration products from Honeywell, Aprilaire, and Guardsman. We stock common fittings and sealants for Alhambra’s galvanized steel ductwork, so most repairs don’t wait on parts. When we recommend a filtration upgrade after cleaning, we install what we stock and explain the MERV rating that matches your system’s airflow capacity, not just the highest number on the shelf.
Common Air Duct Cleaning Problems We See in Alhambra Homes
- Original ductwork with no return-air plenum. Post-WWII tract homes throughout Alhambra pull return air from crawlspaces or wall cavities instead of a sealed plenum. This recirculates attic dust and smog particles no matter how often you change the filter.
- Galvanized steel ducts leaking at every joint. The original tape and fiber fasteners in 1950s-60s Alhambra homes have dried out and failed. Conditioned air escapes into attics; unfiltered air gets sucked in through the gaps.
- Crushed supply trunks at attic crossings. Builders ran ducts over top plates with minimal clearance. Decades of foot traffic and storage weight in Alhambra’s low-slope attics have flattened the ducts, choking airflow to entire rooms.
- Vertical chases in 1960s-80s apartment buildings with no access panels. Buildings along Valley Boulevard and near Alhambra Road have centralized duct systems that run through walls with no way to inspect or clean without camera gear and specialized agitation tools.
Pricing for Air Duct Cleaning in Alhambra, CA
A typical residential vent cleaning in Alhambra runs $180 – $280 for supply and return registers on a single system. Full system cleaning with negative-air extraction and rotary brush agitation ranges from $350 – $650 depending on the number of registers, accessibility of the main trunk lines, and whether we find disconnected or crushed runs that need repair. Air duct repair in Alhambra, including reconnecting crushed attic runs, sealing joints with mastic, or installing a return-air plenum, typically adds $200 – $500 to the cleaning cost.
We do not quote per-vent teaser prices that balloon once the technician arrives. The price is written down before any work starts, and it does not move at the door. Every estimate includes camera inspection so you see what we see. Call (361) 326-5060 for a free written estimate on your Alhambra home.
We Also Serve Cities Near Alhambra
Our crews work throughout the San Gabriel Valley, including Alhambra and neighboring South Pasadena, San Marino, Monterey Park, and San Gabriel. Scheduling and dispatch are coordinated from our Los Angeles office, with local technicians assigned to each job based on the specific building type and ductwork era.
Serving Alhambra, CA - Our Local Coverage Area
We’re based in the Alhambra 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 Alhambra
Because the original ductwork was undersized and often installed without a return-air plenum or proper joint sealing. A brush-and-vacuum clean removes surface dust but leaves the real problem intact: attic air and smog particulates still leak into the system through gaps and crushed runs. We camera-inspect every Alhambra home from this era and quote sealing and reconnection work when the structure requires it. Call (361) 326-5060 for an inspection and written estimate.
Alhambra sits in the smog belt east of downtown Los Angeles, and fine particulates from the 10 and 710 freeways plus regional industrial sources drift into homes through every gap in ductwork. We regularly find black, oily buildup in return ducts that store-bought filters never catch. Our HEPA extraction systems and sealed repair methods remove this buildup and stop it from returning. Call (361) 326-5060 to schedule camera inspection.
Yes, but it requires specialized equipment. Buildings along Valley Boulevard and near Alhambra Road have centralized vertical chases with no attic access. We use flexible camera systems to inspect the full height, then deploy rotary brush tools and negative-air extraction through strategically placed access points. Crews without this gear often clean only the register area and miss the bulk of the buildup. Call (361) 326-5060 to discuss your building’s layout.
Because the cleaning likely addressed only the supply side, or used a shop vac without negative-air containment that pushed attic dust into the living space. Musty smells in Alhambra homes usually come from return ducts pulling air through damp crawlspaces, or from mold growth on dust deposits in leaking trunk lines. We find the source with camera inspection, seal the leaks with mastic, and clean under full containment so odors don’t migrate during the job. Call (361) 326-5060 for a diagnostic visit.
Most Alhambra homes with original ductwork and standard blower motors should use MERV 8 – 11. Higher ratings restrict airflow in undersized systems and can actually reduce filtration efficiency by straining the blower. After we clean and seal your ducts, we measure static pressure and recommend the rating that captures San Gabriel Valley particulates without overloading your equipment. Call (361) 326-5060 to schedule cleaning and filtration assessment.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Alhambra since 2004.