Frequently Asked Questions

We connect a high-powered negative-air vacuum to your main trunk line, then agitate the inside of each duct run with rotating brushes and compressed air whips to break loose the dust, hair, and debris that have bonded to the duct walls. The vacuum pulls everything out to a HEPA-filtered collection unit. After the ducts are clean, we clean the blower motor compartment and replace the filter if you provide one. A full cleaning on a Northridge home usually takes 2 to 4 hours.

Most single-family homes in Northridge take between 2 and 4 hours from arrival to final walkthrough. Homes with two systems, which are common in larger Granada Hills-adjacent properties, can run 5 to 6 hours. The timeline depends on how many returns you have, how dirty the ducts are, and whether the system is in a crawlspace or an attic. We'll give you a realistic time window when you book, and we don't rush the job to hit a quota.

No. Our equipment creates negative pressure inside your ducts, which means air and debris flow out of the system and into the collection unit, not into your living room. We lay corner guards on walls and use shoe covers on every visit. Before we start, we seal off each register we're not actively working on to maintain the vacuum. When we leave, the only thing different about your home is the air moving through the ducts.

Every 3 to 5 years for most Northridge homes, but two local factors change that math. First, the Santa Ana winds push fine dust and ash from the hills around Porter Ranch and Granada Hills into homes, which settles in ducts faster than in coastal areas. Second, if you have pets that shed, which plenty of Northridge households do, dander collects in ductwork quickly. Homes with allergy sufferers or recent renovation work should lean toward the 2 to 3 year mark. Call (833) 968-4871 and we'll help you decide based on your specific situation.

Not much. Clear a path to the furnace or air handler, and move anything fragile away from the registers if it's within a foot or two of the wall. We handle the rest: sealing off registers, protecting floors, and setting up the equipment. If you have a specific register you know is hard to reach, like one behind a heavy bookcase in a Northridge ranch-style home, just let us know when you book so the coordinator can note it for the crew.

Usually yes, but access is the variable. In condo communities along Corbin Avenue or Tampa Avenue, the HVAC equipment is sometimes located in a shared utility closet or on a rooftop, which requires coordination with building management. Townhomes with their own ground-level mechanical room are straightforward. If you're in an HOA property, check whether your CC&Rs place the ductwork under the association's responsibility or yours. We're happy to work directly with your property manager if needed.

Yes. We clean the duct system, not the furnace brand, so whether your equipment is Carrier, Lennox, Trane, Rheem, or Goodman, the process is the same. What matters is the configuration of your ducts: the number of returns, the trunk line layout, and the type of filter housing. Our team has cleaned systems in every style of Northridge home, from mid-century single-story houses near Cal State Northridge to newer two-story builds in Porter Ranch.

For most Northridge homeowners, a pleated MERV 8 to MERV 11 filter strikes the right balance between filtration and airflow. The Santa Ana winds bring fine particulate that clogs lower-MERV filters quickly, but anything above MERV 13 can restrict airflow in older systems and strain the blower motor. Brands like Honeywell and Aprilaire make reliable pleated filters in common sizes. We're happy to look at your filter housing during a cleaning and recommend the right fit and rating for your specific system.

Yes, blower motor cleaning is part of our standard service. Dust builds up on the blower wheel blades over time, which reduces airflow and makes the motor work harder. In Northridge homes where the furnace is in a garage, which is very common, the blower tends to collect more debris than in attic installations. We remove the blower housing, clean the wheel and the motor casing, and check that everything spins freely before we put it back.

We offer sanitizing as an optional add-on when it's warranted, but we don't push it on every job. In some Northridge homes, especially those that sat closed up for months during summer heat, there can be a musty odor coming from microbial growth in the ducts. In those cases, a sanitizing mist applied after cleaning can make a real difference. We'll show you what we're seeing before we recommend anything, and you'll know the exact add-on price before we apply it.

Every professional working under our name is required to hold the license and insurance their state requires for HVAC and duct work. That's a network standard we enforce across every job, not a case-by-case exception. Before work begins, we're glad to provide proof of insurance if your HOA or property manager asks for it. Our goal is to make the credentialing part of the process boring and quick so you can focus on the actual service.

We require background screening for every technician before they enter a customer's home. The screening standard applies across our network, and we stand behind the people we send into Northridge homes. We know you're letting a stranger into your house, often when you're home alone or with kids. That trust is the foundation of this business, and we take it seriously on every single visit.

California doesn't require a specific "duct cleaning license," but companies doing this work generally operate under a contractor's license, and any technician touching HVAC components should carry the appropriate credentials. We're part of a national network that sets its own operational standards above the state minimum. If you're comparing companies in Northridge, always ask for license and insurance documentation. A legitimate company will provide it without hesitation.

Same-day service is rarely realistic for a thorough duct cleaning. The work takes 2 to 4 hours, and our schedule in Northridge and surrounding neighborhoods like Granada Hills and Winnetka fills up quickly. You can always call (833) 968-4871 and ask; if there's a cancellation or an open slot, we'll tell you straight. But we'd rather schedule you for the right day than squeeze a full cleaning into a rushed window.

Our phone line is open Monday through Friday from 7:00 AM to 7:00 PM, and Sunday from 7:00 AM to 7:00 PM. We're closed on Saturdays. When you call, you'll speak with a live coordinator who can answer questions, schedule your appointment, and give you a realistic time window for the visit. If you call outside those hours, we still answer. We answer 24/7 and book you into the next opening.

Yes, smoke-damaged ducts are a service we perform, and it requires a more intensive process than standard cleaning. Smoke particles are extremely fine and can penetrate deep into duct lining and insulation. We use equipment designed for particulate capture, including HEPA filtration on our collection units. If you've had a kitchen fire, a wildfire nearby, or smoke intrusion from a neighbor's property, call (833) 968-4871 and describe the situation. We'll give you an honest assessment of what's possible.

Yes. If you're not satisfied with the cleaning, tell us within a reasonable window after the service and we'll come back to address whatever you feel was missed. That's how we've operated since 2014, and it's why most of our Northridge customers come from referrals. We don't hide behind fine print or technicalities. If the job isn't done right, we make it right.

We show you before-and-after photos of your own ducts, taken with a camera we run through the system before and after cleaning. You'll see the inside of your trunk line and representative vents, not stock photos from someone else's house. For Northridge homeowners who've been burned by companies that spent 20 minutes waving a vacuum wand at a register, this is the proof that separates real work from theater. We want you to see exactly what you paid for.

Our workmanship carries a satisfaction guarantee. If something wasn't cleaned to standard, we return and redo it at no additional cost. What we can't warrant is the condition of ducts that were already damaged before we arrived, like cracked runs, separated joints, or pest damage. During the cleaning, if we find structural issues, we'll show you photos and point you toward a reputable repair option. We never upsell repairs we're not qualified to perform ourselves.

Written by the team at Air Duct Cleaning Northridge, serving Northridge and the surrounding San Fernando Valley since 2014.