Fast, Reliable Air Quality & Sanitizing Across Los Angeles
Air quality and sanitizing service in Los Angeles typically runs $275-$650 for whole-home duct sanitizing, with most appointments scheduled within 24 hours and completed in a single visit. If you’re smelling smoke residue, seeing mold near vents, or fighting allergies that won’t quit, we’ll get a technician to your door fast.
We’ve been working in Los Angeles homes since 1984, from the tight bungalows of Silver Lake to the sprawling Valley ranch houses built during the 1960s tract-home boom. We know the parking situation on narrow hillside streets, the alley-access townhomes in Koreatown, and the original fiberglass duct board still running through Reseda and Granada Hills. Our technicians carry equipment sized for Los Angeles clearances, and we answer our own phones live, 24 hours a day, at (855) 401-6006.
Why Bellows Air Duct & Vent Co. of California Is Los Angeles’s Preferred Air Quality & Sanitizing Company
Los Angeles homeowners have called us back for forty-two years because we show our work. Every job gets a camera inspection before and after, so you see what was in your ducts and what isn’t anymore. Our Air Quality & Sanitizing team has handled post-wildfire contamination from Malibu to Sylmar, mold remediation in Mid-City retrofits, and allergen reduction for families in View Park-Windsor Hills who were done suffering through Santa Ana wind season.
Our reviews come from people who live here. They mention technicians who arrived on time in uniform, who explained the upfront price before touching a tool, and who left the floors clean. We’re not a dispatch service sending whoever’s available. Our techs are background-checked, trained on Los Angeles housing stock, and accountable to the office.
Response time matters in this city. After a Santa Ana wind event, ash and combustion byproducts can circulate through your HVAC within hours. We keep slots open for emergency calls across Los Angeles, and most standard appointments are scheduled next-day. When we say we’ll be there, we will.
We also understand what Los Angeles homes are built from. The original fiberglass duct board in San Fernando Valley tract homes sheds fibers after fifty years. Pre-war Spanish Revival and Craftsman houses in Los Feliz and Silver Lake had central air retrofitted into attics never designed for it, leaving disconnected joints and chronic contamination. We don’t treat your house like a generic installation.
Our Air Quality & Sanitizing Services in Los Angeles
Mold Treatment
Mold in Los Angeles ducts usually follows moisture intrusion, and wildfire season adds a specific risk: when firefighters extinguish structure fires or when rain finally follows dry Santa Ana conditions, water enters compromised attic ductwork. We treat visible mold with EPA-registered products and address the moisture source so it doesn’t return. In the Valley’s enclosed bowl geography, where smog and humidity linger against the mountains, mold spreads faster than homeowners expect.
Bacteria Sanitizing
Standard duct cleaning removes debris. Bacteria sanitizing kills what’s living in it. We apply hospital-grade sanitizer through the full duct run, not just at the vents. After wildfire events, this matters more: combustion byproducts including benzene and heavy metals can support bacterial colonization in damp duct interiors. We use equipment from Abatement Technologies to deliver complete coverage, and we verify it with post-treatment camera inspection.
Odor Removal
Smoke odor from wildfire ash is the call we get most often after Santa Ana wind events in Los Angeles. The smell means contamination has already spread through your HVAC system. We don’t mask it. We remove the source material, clean the duct interior with Rotobrush agitation and HEPA vacuum extraction, then apply oxidizing sanitizer to break down odor molecules at the chemical level. One visit. No callbacks.
UV Light Installation
UV-C lights installed at the evaporator coil or in the return duct kill mold spores and bacteria before they circulate. For Los Angeles homes in wildfire-prone foothill zones, UV lights add continuous protection between professional cleanings. We size and install units from Honeywell and Aprilaire for your specific system, not generic kits that don’t fit Valley-era air handlers or tight attic installations.
Air Purifier Install
Whole-home air purifiers with MERV 16 or HEPA filtration capture wildfire particulates that standard 1-inch furnace filters miss. We install Aprilaire and Honeywell systems sized to your HVAC capacity, with filter change schedules based on Los Angeles air quality conditions, not national averages.
Allergen Reduction
Los Angeles’s combination of Santa Ana dust, wildfire ash, and year-round pollen creates an allergen load that overwhelms standard filtration. We reduce it at the source: deep duct cleaning, sanitizer application, and if needed, upgraded filtration or air purifier installation. Families in Echo Park and Silver Lake call us when antihistamines stop working. We fix the house instead.
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.
Trusted Brands We Service in Los Angeles
We stock parts and equipment from Rotobrush, Nikro, and Abatement Technologies, the same brands serious HVAC contractors specify for commercial jobs in downtown Los Angeles. For air purifier and UV installations, we use Honeywell and Aprilaire. We don’t substitute cheaper units at your door. The price we quote includes the equipment we promised, installed by technicians who know how to make it work with Los Angeles’s mix of original and retrofitted systems. Most repairs and installations finish in one visit because our trucks carry inventory matched to what we actually see in local homes.
Common Air Quality & Sanitizing Problems We See in Los Angeles Homes
- Wildfire ash packed into return-air intakes after Santa Ana events. Homeowners in Tarzana, Woodland Hills, and La Cañada Flintridge often don’t notice until the HVAC kicks up a gray film on furniture. By then, benzene and fire-retardant chemicals have circulated through every room.
- Deteriorated fiberglass duct board shedding fibers into living spaces. The 1960s-70s tract homes across Reseda, Canoga Park, and Northridge were built with original duct board now past fifty years. It doesn’t hold sealant, it doesn’t clean well, and it contaminates the air it was meant to carry.
- Disconnected joints in retrofitted attic ductwork. Pre-war homes in Los Feliz and Silver Lake had central air added decades after construction. Ducts run through unconditioned attics, seals fail, and the system pulls in insulation dust, rodent debris, and Santa Ana dust loads.
- Mold following wildfire moisture events. When rain finally arrives after dry Santa Ana conditions, water enters compromised attic spaces. Mold establishes in duct interiors before homeowners smell anything. We find it during camera inspection.
Pricing for Air Quality & Sanitizing in Los Angeles, CA
Whole-home duct sanitizing in Los Angeles typically runs $275-$450 for systems up to 2,500 square feet, and $425-$650 for larger homes or those requiring post-wildfire contamination treatment. Mold treatment adds $150-$300 depending on extent and accessibility. UV light installation ranges $395-$750 per unit based on system compatibility and wiring requirements. Whole-home air purifier installation runs $850-$1,400 including unit and labor.
What moves the price: square footage, duct accessibility (tight Los Angeles attics take longer), contamination severity, and whether we find disconnected joints or deteriorated duct board that needs repair. We inspect with a camera before quoting, so the number you hear is the number on the invoice. No bait coupons. No changes at the door.
We offer $50 off any repair over $250, a permanent 5% senior and veteran discount, and free second opinions on any written estimate you’ve already received. Call (855) 401-6006 for a free estimate.
We Also Serve Cities Near Los Angeles
Our technicians work daily in Los Angeles and the surrounding communities, including Koreatown, Echo Park, Silver Lake, and View Park-Windsor Hills. Same-day scheduling, same camera inspection, same upfront pricing. If you’re unsure whether we cover your address, call and we’ll confirm.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles 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 - Air Quality & Sanitizing in Los Angeles
Schedule inspection within 48-72 hours of visible ash deposition or odor detection. The longer ash sits in damp duct interiors, the deeper combustion byproducts bond to duct surfaces and the more they circulate through your living space. After the Woolsey Fire, we worked on a home in Malibu where Santa Ana winds had packed ash into the return-air grille. Using a Rotobrush with HEPA vacuum, we removed a fine gray film of combustion byproducts from the fiberboard ducts and applied a hospital-grade sanitizer to eliminate lingering benzene residues. Call (855) 401-6006 to schedule - estimates are free.
We install Honeywell and Aprilaire whole-home systems with MERV 16 or true HEPA filtration, sized to your HVAC capacity. These capture PM2.5 wildfire particulates that standard 1-inch filters miss entirely. We don’t sell portable units or generic brands. The system we recommend depends on your existing equipment, your home’s square footage, and whether you’re in a high-exposure foothill zone. Call for a free assessment.
Yes, UV-C lights at the evaporator coil or return duct kill mold spores and prevent colonization, but they don’t remove existing mold or moisture. If water entered your attic ductwork during fire suppression or post-fire rain, you need mold treatment first, then UV installation for ongoing prevention. We inspect with a camera to determine whether you need one, the other, or both. Call (855) 401-6006 to schedule.
Yes. We work on original fiberglass duct board daily in Reseda, Canoga Park, Granada Hills, and Northridge. We clean it carefully to avoid fiber release, inspect for deterioration, and recommend replacement when the board has degraded beyond salvage. Our technicians carry repair materials sized for Valley-era installations. Call for a free inspection and honest assessment.
We use compact Rotobrush and Nikro equipment designed for confined spaces, and our technicians are trained on the specific challenges of Los Angeles’s pre-war and mid-century housing stock. For Spanish Revival and Craftsman homes in Los Feliz, Silver Lake, and Mid-City with retrofitted attic ducts, we often find disconnected joints at the plenum that larger equipment would miss entirely. Camera inspection confirms what we can’t see from the access hatch. Call (855) 401-6006 to schedule - we’ll get a technician who knows your type of house.
Written by Roger Castañeda, Owner at Bellows Air Duct & Vent Co., serving Los Angeles since 1984.