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.
Guardsman Air Duct Cleaning in Santa Clarita: What to Know First
Guardsman air duct cleaning in Santa Clarita typically runs $395 to $1,150 for a full residential system, and most jobs are completed in 3 to 5 hours. We’re an independent Guardsman service provider, not a manufacturer affiliate, which means we work on the actual ductwork and filtration your Guardsman system moves air through, never selling you parts you don’t need. Roy Castellanos and our crew have worked in homes from Saugus to Valencia for years, and we write every price down before we touch a single vent.
This page is for Santa Clarita homeowners who own a Guardsman filtration or HVAC setup and want the ducts cleaned by people who understand how those systems fail in this valley’s dry heat and dust. If you want a straight answer on cost or condition, call (661) 523-0295 and we’ll walk you through it.
How Guardsman Products Fail – and How We Fix Them
Guardsman makes filtration products, media air cleaners, and filter cabinets that work hard in Santa Clarita’s dust load. When the ducts around them get neglected, the symptoms show up in specific ways. Here’s what we see on the ground:
- Guardsman media air cleaner with a clogged intake side. This is common in homes off Copper Hill Drive where wind kicks up fine particulate. The filter loads up on one edge, the return duct draws unevenly, and you’ll hear a faint whistle at the return grille. We clean the return duct thoroughly before swapping the media, so the new filter isn’t fighting a dirty airway from day one.
- Guardsman filter cabinet gasket separation. The foam gasket on older cabinet models dries out in valley heat and loses its seal. That lets unfiltered air bypass the media entirely. We check the cabinet while cleaning and tell you plainly if the gasket is shot. It’s a cheap fix that matters more than most people realize.
- Guardsman electronic air cleaner cells with baked-on dust. On systems in Stevenson Ranch and Newhall where the AC runs hard from June through September, the collector cells get a fine coating that washing alone won’t remove. We run our negative-air setup and brush the supply ducts, then advise on cell maintenance so the system stops pushing dust back into rooms.
- Guardsman UV air purifier with dirty surrounding ducts. A UV lamp does nothing for dust downstream. If the ducts haven’t been cleaned, the air leaving the purifier picks up debris on the way to the register. We clean supply runs and register boots so what reaches the room is actually clean air, not lamp-treated dirty air.
- Guardsman whole-home filter cabinet with collapsed media. When a media filter is left too long, it collapses in the middle and stops filtering altogether. The duct system downstream gets dusted with whatever the filter should have caught. We clean the full run and recommend a filter change schedule matched to a Santa Clarita home’s actual dust level, not the national average.
Styles & brands we work with




Our Guardsman Air Duct Cleaning Process
- 1
Call and scheduled window. You call, we pick a time, and a live person confirms it. No callbacks, no waiting until Monday.
- 2
Arrival and written price. We show up inside the window, walk the system, and put the full price in writing before any work starts. That number does not move.
- 3
Inspection and pressure check. We open the supply and return plenums, check the Guardsman cabinet and filter, and look at the blower motor for dust buildup. You’ll know what we find before we clean it.
- 4
Negative-air setup and rotary brushing. We run a Nikro negative-air machine to keep dust from entering your living space while our Rotobrush system scrubs each supply and return run from the register to the trunk line.
- 5
Filter cabinet and component cleaning. We clean the Guardsman cabinet, replace or advise on media, and wipe register boots. If your system also has a UV lamp or electronic cell, we’ll note its condition in plain language.
- 6
Walkthrough and 365-Day Done Right Promise. We test airflow at each register, walk you through what we did, and hand you the written guarantee. If anything isn’t right within a year, we come back at no charge. That’s in writing, not a verbal nod.
See the difference
Before
After
Before
After
Before
AfterWhat Guardsman Air Duct Cleaning Costs in Santa Clarita
We don’t quote per-vent prices. That’s how bait-and-switch shops operate, and we won’t do it. Here’s what a whole-system job actually costs in Santa Clarita:
- Single return, up to 10 supply runs: $395 to $575
- Single return, 11 to 16 supply runs: $550 to $780
- Dual return, 11 to 16 supply runs: $675 to $920
- Dual return, 17 or more supply runs, or multi-level home: $850 to $1,150
What moves the price is access. Crawlspace returns in older Canyon Country homes take longer. High vaulted ceilings with second-floor runs add time. If your Guardsman cabinet needs a new gasket or media, we’ll tell you the parts cost separately, in advance. Call (661) 523-0295 for a free estimate. The price you get on the phone is the price you’ll see in writing.
Why Santa Clarita Homeowners Call Hollis Air Duct Santa Clarita for Guardsman Work
Because we show up when we say we will, price it before we touch it, and stand behind the job in writing for a full year. Every technician is background-checked and uniformed. Every call is answered by a live person, 24/7. Our equipment includes Rotobrush rotary brush systems and Nikro negative-air machines, and we’re as comfortable working around Guardsman filtration as we are around Lennox, Trane, and Carrier setups.
Roy Castellanos grew up in East Los Angeles and got his first HVAC training at Los Angeles Trade-Technical College before moving into air duct cleaning. Since then he’s worked jobs from older ranch-style homes near Saugus to newer builds off Tournament Road in Valencia. He knows how Santa Clarita’s summer heat pushes every duct system hard by midsummer. Clean ducts move clean air. Everything else is just sales talk.
FAQs
No. Guardsman warranties cover the filtration equipment itself, not the ducts. Cleaning the ducts with negative-air equipment and rotary brushes does not touch the cabinet internals in any way that would void coverage. We’re careful around all Guardsman components and we document everything we do. If you have a specific warranty question, bring the paperwork and we’ll read it with you before any work starts.
Every 3 to 5 years for most homes, and every 2 to 3 years if you live near open canyons or new construction where dust load runs higher. Homes in Stevenson Ranch with pets and AC running nine months a year often need more frequent attention. The real test is pulling a register boot and looking at what’s accumulated. If it’s a quarter inch thick, it’s time. Call (661) 523-0295 and we’ll tell you honestly whether your system needs cleaning or just a filter change.
Yes. Cleaning the ducts and then putting a loaded filter back in is like washing the car and driving through mud. We’ll check your existing media and tell you if it has life left. If it doesn’t, we’ll give you the replacement cost in writing before we do anything. No surprise line items.
We show you before-and-after photos of your own ducts, taken from inside the main trunk line and at several register boots. You’ll see the difference. If you want, we’ll walk the whole system with you before we pack up. Most Sacramento Valley companies hand you an invoice and leave. We hand you photos and a written guarantee.
Yes. We clean the supply and return runs around the unit and clean the accessible cabinet area as part of the job. For the electronic cells themselves, we’ll advise on proper washing and maintenance so you don’t damage the collector plates. We won’t open the cell housing and risk damage unless we’re certain we can do it by the book.
Written by Roy Castellanos, Owner, Hollis Air Duct Santa Clarita at Hollis Air Duct Santa Clarita, serving Santa Clarita and nearby areas.