Air Quality & Sanitizing Cost - One Flat Price, Nothing Applied Without Asking

Every visit starts with

Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents

Worth knowing

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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Before & after – our own jobs

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How Much Does Air Quality & Sanitizing Cost in Los Angeles?

Air quality and sanitizing service in Los Angeles typically runs $350 to $1,200 for a whole-home duct cleaning with sanitizing treatment, depending on square footage, how many vents you have, and whether mold or heavy debris is present. A single-system condo or small bungalow often lands closer to $350-$550, while a 3,000+ square-foot home in the hills or the Valley with two HVAC systems runs $900-$1,200. Most jobs are done in a single visit, and you’ll have a written price in hand before we touch a single vent.

If you’re searching for clear numbers before you call anyone, you’re in the right place. We pull real ranges from the work we do across Los Angeles County, not national averages that don’t account for our housing stock, our wildfire seasons, or the age of the ductwork in neighborhoods like Echo Park and Mid-City. Below is a full 2026 price breakdown, what moves the number up or down, and how to avoid paying more than you should. Kestrel Air Duct Cleaning has operated under the Kingswell Guarantee since 2004, and the same written standard applies whether you’re in a 900-square-foot Silver Lake bungalow or a 4,000-square-foot home off Mulholland. You can see our full Air Quality & Sanitizing in Los Angeles service page for what the visit actually includes.

Air Quality & Sanitizing Cost Breakdown (2026)

Here’s what Los Angeles homeowners actually pay across the range of jobs we handle. These are real market ranges for 2026, not estimates pulled from a national pricing tool.

What drives the number up: how many HVAC systems the home runs, how many vents and returns are connected, whether the ductwork is accessible or buried behind finished walls, and whether we find mold, rodent debris, or construction dust. What keeps it down: a single system, a manageable vent count, and routine maintenance history. Homes that have never had ducts cleaned in 15+ years almost always land in the upper half of these ranges because there’s more material to remove, and removal takes time.

The sanitizing add-on is a separate line item for a reason. Cleaning removes the physical debris; sanitizing treats what’s left on the duct walls after the debris is gone. You can do one without the other, but the order matters, and any company that sanitizes before cleaning is doing it backward. That’s the kind of detail the home page of a company actually doing the work will tell you, and it’s why we quote both line items separately so you can see exactly what you’re paying for.

What Affects Air Quality & Sanitizing Pricing in Los Angeles

Los Angeles isn’t a generic market. The cost to clean and sanitize a home here depends on factors you won’t see priced into a job in a newer, more uniform housing market. Here’s what moves the number:

• Age and type of housing stock. A 1920s Craftsman in Angelino Heights or a post-war home in the San Fernando Valley often has original galvanized or flex duct that’s harder to clean thoroughly than the rigid ductwork in a newer build. Older ducts hold more debris and sometimes need more passes with the Rotobrush rotary brush system, which is a motorized brush head that scrubs debris off the duct walls. More passes, more time, higher cost.
• Wildfire and Santa Ana wind seasons. This is the factor out-of-state pricing guides miss. Smoke and ash pulled into HVAC systems during fire season settles inside ductwork, and we see the heaviest dust loads in homes along the foothill edges, from Altadena down through the Santa Monica Mountains. If your home took in smoke during a recent fire event, expect to land in the middle or upper end of the range.
• Number of HVAC systems. A single-family home with one furnace and one AC unit is a straightforward job. Two systems means two sets of trunk lines, two sets of vents, and roughly double the labor. Most two-story homes west of the 405 run two systems.
• Vent count and accessibility. Ten vents is different from 25. Vents that are easy to reach cost less to service than vents tucked behind furniture, under slab, or in tight attic spaces common in hillside homes.
• Contaminants found during inspection. If we open a return and find mold, rodent droppings, or leftover construction dust from a recent remodel, that’s a bigger job with a different price. We tell you what we find before we start, and we put the revised price in writing if it changes.
• Sanitizing vs. cleaning only. Cleaning alone removes debris. Sanitizing adds a treatment step with an EPA-registered product applied to duct interiors. If allergies, asthma, or a recent illness in the home are your reason for booking, you’ll usually want both.

One more factor worth naming: the contractor you hire. The cheapest quote in Los Angeles is almost always the company that shows up with a shop vac and a ladder. We use professional-grade equipment because the job can’t be done properly without it. Rotobrush rotary brush systems dislodge debris at the duct wall where a vacuum alone can’t reach. Nikro negative-pressure units pull the loosened contaminants out of the system rather than pushing them into your living room. Abatement Technologies HEPA filtration captures fine particles at the exhaust point so loosened dust doesn’t end up on your furniture. That equipment costs money, and it’s part of why a real cleaning costs more than a bargain quote.

How to Save on Air Quality & Sanitizing

You don’t have to pay full price to get a proper job. Here’s how Los Angeles homeowners keep the number down without cutting corners:

• Book cleaning and sanitizing together. Bundling the two means one visit instead of two, and it usually saves you $75-$150 compared to scheduling sanitizing as a standalone appointment later.
• Clean the dryer vent at the same time. If we’re already in the house, adding dryer vent cleaning runs $125-$250 and saves you a separate service call. Clogged dryer vents are one of the most common fire risks we find, and if yours hasn’t been cleaned in a couple of years, it’s worth adding.
• Get the free estimate and hold onto the written price. A written price before work begins is the single best protection against a number that changes at the door. We put it in writing every time, no exceptions. Call (469) 972-3151 and we’ll give you a range over the phone and a firm written price after we see the system.
• Address small problems before they grow. A little dust today is a mold problem in two years if moisture gets in. Early cleaning costs less than remediation.
• Upgrade filtration between visits. A Honeywell or Aprilaire media cabinet, or a Guardsman filter setup, keeps your ducts cleaner between professional cleanings so you’re not paying for the same heavy debris removal every year.

We don’t do seasonal discounts or manufactured urgency. The price is the price, and it’s in writing before we start. The Kingswell Way is straightforward: say the price, show up in the window we gave you, leave the place cleaner than we found it, and put the guarantee in writing.

FAQs - Air Quality & Sanitizing Cost

How much does air duct cleaning and sanitizing cost in Los Angeles?

Most Los Angeles homes pay between $350 and $1,200 for duct cleaning with a sanitizing treatment, with the average landing around $600-$750. Single-system homes under 2,000 square feet usually sit at the low end; larger homes with two systems and heavy debris sit at the high end. Call (469) 972-3151 for an exact quote, and estimates are free.

Is it cheaper to clean my air ducts or replace them?

Cleaning is almost always cheaper, usually by thousands of dollars. A full duct replacement in a Los Angeles home typically runs $3,000-$8,000 or more, while cleaning and sanitizing lands between $350 and $1,200. Replacement only makes sense if the ductwork is collapsed, badly sized, or contaminated beyond what cleaning can fix. We’ll tell you honestly which situation you’re in. Call (469) 972-3151 and we’ll walk you through it.

Does sanitizing really cost extra, or is it included?

Sanitizing is a separate step and typically adds $150-$400 to a duct cleaning job, because it’s applied after cleaning and uses an EPA-registered product with its own labor and material cost. Some companies fold it into a bundled price, but you’re still paying for it. We itemize it so you can see what the treatment costs on its own. Call (469) 972-3151 for a written breakdown.

Can you come out today, and does same-day service cost more?

Same-day and next-day appointments are often available, and we don’t charge a rush premium for scheduling sooner. Calls are answered by a live person 24/7, not a voicemail queue, so you can reach someone any time. The cost of the job doesn’t change based on how fast we get there. Call (469) 972-3151 and we’ll tell you what’s open.

What does the 365-Day Done Right Promise cover on a sanitizing job?

The 365-Day Done Right Promise means if the work falls short within the guarantee period, we return and make it right at no charge. On a sanitizing job, that covers the cleaning and treatment itself. If you notice dust returning faster than it should, or the sanitizing didn’t address the issue we treated, we come back. That return visit is written into the guarantee, not extended as a favor. Call (469) 972-3151 to talk through what’s covered before you book.

Why Los Angeles Homeowners Choose Kestrel

We’re part of the Kingswell family of companies, operating under the Kingswell Guarantee since 2004. That means the same four written promises apply on every job: a written price before any work begins, a defined arrival window we actually keep, a clean job site when we leave, and a written guarantee on the work with a free return visit if it fails within the guarantee period. Those promises aren’t marketing language. They’re the standard, and they’re documented on every visit.

Our technicians are background-checked and uniformed, and they use the same professional equipment on every job: Rotobrush rotary brush systems to scrub debris off duct walls, Nikro negative-pressure units to pull contaminants out of the system, and Abatement Technologies HEPA filtration to keep loosened particles out of your living space during the work. We answer the phone with a real person, any time of day. If you want to know exactly what’s in your ducts before you spend a dollar, that conversation starts with one call.

Dale Whitmore leads Kestrel Air Duct Cleaning, and he’s the one accountable when the work is done. If something’s off, you’re not talking to a call center. You’re talking to the company that put its guarantee in writing.

Get a Free Estimate on Air Quality & Sanitizing in Los Angeles

Call (469) 972-3151 for a free estimate on air duct cleaning and sanitizing. You’ll get a range over the phone and a written price before any work starts. Live person, 24/7, no door-step surprises, and a written guarantee behind every job. Estimates are free, and we’re happy to answer questions before you commit to anything.

Pricing reflects the Los Angeles market as of 2026. Kestrel Air Duct Cleaning offers free estimates – call (469) 972-3151.

Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving Los Angeles since 2004.