Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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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Before
AfterCommercial Duct Cleaning in Long Beach, CA
Commercial duct cleaning in Long Beach typically costs between $0.15 and $0.35 per square foot, with most office, retail, and restaurant spaces landing between $800 and $2,500 depending on system size and access. A full commercial job on a single rooftop unit usually takes one day; larger buildings with multiple zones run two to three days. Hollis Air Duct Long Beach handles these jobs with the same written pricing and 365-Day Done Right Promise we put on every residential Air Duct Cleaning in Long Beach visit. Call (562) 548-7365 and you’ll talk to a live person, not a voicemail tree.
What makes commercial work different from residential duct cleaning is scale and consequence. A restaurant in downtown Long Beach pulling grease vapor through its exhaust path, a medical office near St. Mary’s needing documented filter compliance, a warehouse in the South Bay with dust loading from shipping traffic: these systems move thousands of cubic feet per minute, and when they’re dirty, the building pays for it in energy costs, tenant complaints, and equipment wear. We’re not a janitorial crew that adds duct cleaning as a side item. It’s what we do, it’s all we do, and we’ve done it since 2004 under the Garrison Partners name.
Roy Castellanos runs the Long Beach shop. He’s the one who answers when you call with a question that doesn’t fit a script, and he’s the one who signs off on every commercial job before it’s booked. That’s not a marketing line; it’s how the office is set up.
When You Need Commercial Duct Cleaning
Most building owners don’t think about ductwork until something forces them to. Here’s what typically triggers the call in Long Beach:
- Dust accumulating on desks, shelves, or merchandise within days of cleaning. That dust is coming from somewhere, and in a commercial building, the somewhere is usually the supply ductwork. In areas like the Port of Long Beach corridor and along the 710, diesel particulate and container-shed dust find their way into rooftop intakes and settle inside the system.
- Uneven heating or cooling between rooms or floors. A blocked return or a collapsed section of flexible duct can starve certain zones. If your staff runs space heaters in July while another office is freezing, the problem is often airflow, not the thermostat.
- A musty or sour smell when the HVAC cycles on. Long Beach humidity gives mold and bacteria a foothold inside ductwork, especially in buildings that sit empty over weekends. Coastal moisture plus organic dust equals odor. Cleaning the ducts removes the food source; it doesn’t just mask the smell.
- Higher energy bills with no change in occupancy or equipment. A dirty coil and restricted ductwork make the blower work harder to move the same air. The unit runs longer, draws more current, and passes the cost to you every billing cycle.
- Tenant or employee complaints about allergies, headaches, or stale air. In commercial leases, indoor air quality disputes get expensive. Documented duct cleaning is one of the few actions a property owner can take that produces a visible, verifiable result.
- A renovation or construction project just wrapped up. Drywall dust, sawdust, and debris get pulled into return ducts during construction. If you don’t clean after the contractor leaves, that dust blows through the building for months and settles in every corner.
Our Commercial Duct Cleaning Process
We don’t do the “blow and go” routine that some commercial cleaners run: one guy with a shop vac and a leaf blower, in and out in ninety minutes. That doesn’t clean a system; it just rearranges the dirt instead of doing a full system cleaning. Here’s how a Hollis commercial job works:
- Walkthrough and system mapping. Before we touch anything, we locate every unit, every return, every supply register, and every access point. We’ll need roof access or mechanical room access, and we’ll ask about occupied hours so we can schedule around your business, not through it.
- Written price, signed before work starts. The quote lists the scope, the access requirements, the equipment we’ll use, and the total. It doesn’t move unless the scope changes and you approve the change in writing first. No technician has the authority to add a line item at the door.
- Negative-air containment. We connect a Nikro negative-air machine to the system, which puts the ductwork under vacuum. This is the same principle a restoration crew uses: dirty air is drawn out through HEPA filtration rather than blown into your occupied space. For a commercial kitchen or a medical office, this is the difference between cleaning and contamination.
- Mechanical agitation. We run a Rotobrush rotary brush system through the supply and return lines. The brush physically scrubs the duct walls and pushes debris downstream, where the negative-air machine captures it. Caked-on dust that’s been inside a ten-year-old building since the day it opened doesn’t come out with air pressure alone; it needs contact.
- Component cleaning. We clean the coils, blower motor, drain pan, and the inside of the air handler. A duct cleaning that skips the air handler is like washing the hose but not the spigot. Filter replacement is available using Aprilaire and Guardsman products where the building’s filter rack accepts them, and we’ll document exactly what was installed and when.
- Site clean and system verification. Every access point gets sealed, every register goes back where it came from, and the site gets left cleaner than we found it. That’s The Garrison Code: arrive inside the window, price in writing, do the job by the book, leave the site clean. Then we walk you through what we found and what we did, in plain terms.
Commercial Duct Cleaning Pricing in Long Beach
Commercial pricing depends on system size, access difficulty, and contamination level. A small single-unit office suite in Bixby Knolls runs a different number than a distribution warehouse with twelve rooftop units and forty-foot ceilings. Here’s what you can expect in the Long Beach market:
| Building Type | Typical System Size | Price Range |
|---|---|---|
| Small office suite / retail | 1-2 rooftop units, under 5,000 sq ft | $800 – $1,500 |
| Mid-size office / medical | 2-5 units, 5,000 – 15,000 sq ft | $1,500 – $3,500 |
| Restaurant / kitchen exhaust adjacent | Combination of HVAC and exhaust path, grease present | $1,200 – $4,000+ |
| Industrial / warehouse | 5+ units, high-bay access, heavy dust loading | $3,000 – $8,000+ |
What moves the number: how many units need cleaning, how long the runs are, whether we need a lift or extension ladders for access, how badly the system is loaded, and whether the building has flexible duct that requires gentler brush heads or rigid duct that can take a full scrubbing. A building that hasn’t been cleaned since construction will cost more than one on a maintenance schedule, because the labor hours are genuinely different.
Every commercial quote is written and free. Call (562) 548-7365, tell us the building size and unit count, and we’ll schedule a walkthrough. You’ll have a number in writing before you decide anything.
Why Long Beach Buildings Face Different Duct Problems
Long Beach isn’t Phoenix and it isn’t Seattle. The marine layer rolls in most mornings, burns off by early afternoon, and leaves behind moisture that interacts with whatever is already inside your ductwork. Combine that with the Port of Long Beach, the 710 corridor, and the refineries up the road in Wilmington, and you get a particulate mix that’s heavier in carbon and salt content than what inland buildings deal with. Salt-laden air accelerates corrosion on exposed coil fins. Return duct cleaning is needed more often here because port dust loads up filters faster than the filter schedule accounts for.
In practice, that means: a building three blocks from the water in Belmont Shore needs filter changes more often than a building in Lakewood, and the interior of the ductwork shows it. We see systems near the coast with surface corrosion on the coil that inland systems don’t develop. We note it, we document it, and we tell you what it means for your equipment’s remaining service life. That’s the kind of local knowledge you don’t get from a franchise call center dispatching a tech from forty miles away.
What Commercial Duct Cleaning Won’t Do
It won’t fix a refrigerant leak. It won’t repair a failed compressor. It won’t bring an under-sized system up to code. What it will do is restore your system’s designed airflow, remove the accumulated debris that’s been choking your coils and contaminating your air stream, and give you a documented baseline for future maintenance. Some buildings pair duct cleaning with Air Duct Cleaning on the tenant side and call it a day. Others follow our recommendation and add duct sealing with mastic to close up leaks in the older sections of run. The goal is a system that moves air where it’s supposed to go, not into a dropped ceiling or a wall cavity.
The 365-Day Done Right Promise, In Plain Terms
Here’s what the promise covers: if the work fails within a year, we come back and make it right at no charge. That includes a free second visit. We put it in writing on every commercial job, not because we expect problems, but because a property owner deserves to know what happens if one shows up. Most commercial cleaning contracts have a clause that basically says “we did it, good luck proving otherwise.” Ours says the opposite. If you can show us the ductwork is still dirty, or the odor came back, or we missed a return line, we’re back out. No invoice, no argument.
That’s the Garrison Standard. It’s why we’ve had commercial accounts in the Long Beach area that call us back every two to three years on a schedule, not because they’re unhappy, but because they’d rather prevent a problem than manage one.
FAQs – Commercial Duct Cleaning
How much does commercial duct cleaning cost in Long Beach?
Commercial duct cleaning in Long Beach typically runs $0.15 to $0.35 per square foot, with most jobs falling between $800 and $2,500. Small offices with a single rooftop unit start around $800; large industrial spaces with high-bay access and heavy contamination can run $8,000 or more. Every quote from Hollis Air Duct Long Beach is written and free, so you’ll know your exact number before any work begins. Call (562) 548-7365 to schedule a walkthrough.
How long does commercial duct cleaning take?
Most single-unit commercial spaces are done in one full day. A mid-size office building with two to five rooftop units typically takes two days, and a large warehouse or industrial facility can take three days or more depending on unit count and access. We’ll give you a schedule in the written quote, and we’ll work around your occupied hours so your business keeps running.
Can you clean ducts in a restaurant or commercial kitchen?
Yes. Restaurant systems are a specialty, because grease vapor from the cooking line gets pulled into the HVAC path, especially in kitchens that don’t run a fully separate exhaust system. Grease-coated ductwork requires mechanical agitation with rotary brushes and proper containment, not just air pressure. We’ll assess the system, document the condition, and give you a written recommendation for cleaning frequency based on your kitchen’s volume and menu.
How often should a commercial building clean its ducts?
Most commercial buildings in Long Beach should clean their ductwork every two to five years, depending on tenant turnover, proximity to the port or the 710, and whether the building has undergone renovation. Buildings with high occupancy density, like medical offices or fitness studios, lean toward every two to three years. We’ll give you a straight answer for your building after we look at the system, not a one-size-fits-all schedule. Call (562) 548-7365 and ask for Roy; he’ll tell you what he’d do if it were his building.
Documentation and Compliance
Some commercial tenants, especially medical and food-service operations, need documentation that the ductwork was cleaned, when, and by whom. We provide a written report with the system map, the work performed, and the date of service. It’s not a certificate that replaces your HVAC contractor’s maintenance log, but it’s a record that satisfies most tenant-indoor-air-quality inquiries and health-department questions. If you’re buying or selling a commercial property in Long Beach, a recent duct cleaning report is also a useful disclosure document.
Call Hollis Air Duct Long Beach for Commercial Duct Cleaning
If your building’s air smells like the last five years of occupancy, or your energy bills keep climbing while your tenants keep complaining, the ductwork is the place to look first. We’ll send background-checked, uniformed technicians who arrive inside the quoted window, hand you a written price before any work starts, and stand behind the job for a full year in writing. Call (562) 548-7365 and ask for a free commercial estimate. You’ll talk to a person, you’ll get a straight answer, and you’ll know exactly what it costs before you commit to anything.
Written by Roy Castellanos, Owner at Hollis Air Duct Long Beach, serving Long Beach.