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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After
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Before
AfterSupply Duct Cleaning in San Diego, CA
Supply duct cleaning removes the dust, debris, and allergens trapped inside the ducts that carry heated and cooled air from your furnace or AC unit into the rooms of your home. It costs between $450 and $900 for most San Diego houses, depending on the number of vents and the condition of the ductwork, and the work typically takes 3 to 5 hours. Kestrel Air Duct San Diego performs this as part of a full Air Duct Cleaning in San Diego service, not as a stand-alone upsell, and every job carries our written 365-Day Done Right Promise.
Supply ducts are the delivery side of your HVAC system. They’re the metal or flexible tubes that push conditioned air out through the registers in your ceiling, walls, or floor. When those ducts get dirty, every room in the house receives air that has traveled across that built-up layer of dust, pet dander, and whatever else has accumulated over the years since the house was built or the system installed-this is why our Air Duct Cleaning services focus on thorough supply duct restoration.
We’ve been cleaning supply ducts in San Diego homes since 2004, and the job is more involved than running a vacuum hose into a vent. It requires negative-air extraction, brush agitation, and a technician who understands how pressure differentials work in a ducted system. Call us at (619) 695-0424 to get a written quote before any work begins.
Key Takeaways:
- Supply duct cleaning in San Diego runs $450 – $900 for most homes, with a written price in your hands before we start.
- We use Rotobrush rotary brush systems and Nikro negative-pressure units, not a shop vac.
- The 365-Day Done Right Promise is in writing on every job: if it’s not done right, we return and make it right at no charge.
- Every technician is background-checked and uniformed, and the work follows The Kingswell Way values code.
When You Need Supply Duct Cleaning
Most San Diego homeowners call us after noticing one of a handful of telltale signs. Some are obvious, like dust coating the vent covers. Others are subtle, like a bedroom that stays warm while the living room cools down. Here are the specific situations where supply duct cleaning is the right call:
- Visible dust on register covers: If you can wipe a film of gray dust off the outside of a ceiling or wall register, the inside of that duct has more. The outside surface is cleaner than the interior by a wide margin.
- Uneven room temperatures: In Clairemont and Mission Valley homes built in the 1960s and 1970s, we often see supply ducts with years of debris restricting airflow to the far bedrooms. The AC works, but some rooms never get comfortable. A restricted supply duct is frequently the reason.
- Recent construction or renovation: If you’ve had drywall work, flooring replacement, or any remodel in a San Diego home, construction dust settles inside supply ducts while the work is happening. The system then distributes that dust for months afterward unless the ducts are cleaned.
- New homeowners with unknown system history: When you buy a house in San Diego, you don’t know how often the previous owner changed filters or whether the ducts have ever been cleaned. We regularly clean supply ducts in homes where the HVAC system shows signs of neglect: dirty coils, clogged return filters, and registers that haven’t been removed in years.
- Allergy symptoms that improve away from home: If family members notice their congestion, sneezing, or sinus pressure improves at work or at a hotel and worsens in the house, recirculated dust and allergens from supply ducts can be a significant contributor.
- Musty smell from vents when the system runs: A stale or damp odor that comes out only when the fan activates usually lives inside the ductwork, not the room. Supply ducts in coastal neighborhoods like Point Loma and Pacific Beach can accumulate moisture from humid air, and that moisture binds dust to the duct walls.
If any of those describe your home, call (619) 695-0424. We’ll give you an honest assessment over the phone and a written price before any work happens.
Our Supply Duct Cleaning Process
Supply duct cleaning is a specific procedure, not a general cleaning task. Here’s exactly what our technicians do, in the order they do it, on a typical San Diego home, starting with Video Inspection:
- System inspection and pressure check: We start by identifying where your supply ducts run, how many registers you have, and what type of duct material is in place. We also check the condition of the duct connections and note any visible gaps or damage. You get a clear picture of what we found before cleaning begins.
- Register removal and sealing: We remove each supply register and cover the surrounding area to protect your floors and furnishings. The registers get cleaned separately. Every room is treated like a work site, not an afterthought.
- Negative-air extraction setup: This is the part that matters most. A Nikro negative-pressure unit connects to the duct system and creates a vacuum that pulls air and loosened debris out of the ducts and into a HEPA-filtered collection unit. Negative-air extraction means dirty air doesn’t blow back into your living space during the job.
- Rotary brush agitation: We send a Rotobrush rotary brush through each supply duct run. The spinning bristles dislodge the layer of dust, hair, and debris that has adhered to the duct walls. Brush agitation is the difference between a superficial cleaning and a real one: without it, only the loose dust on the bottom of the duct gets removed.
- HEPA filtration throughout: Our Abatement Technologies HEPA filtration runs during the entire process, capturing the particles stirred up by the brush. That means the air leaving our equipment is cleaner than the air entering it. No dust cloud in your hallway, no film on your furniture afterward.
- Final walkthrough and written guarantee: We reinstall the registers, clean the area around each vent, and walk you through what we removed. Then we give you the 365-Day Done Right Promise in writing. If anything falls short within a year, you call us and we return at no charge. That’s not a courtesy; it’s the way The Kingswell Way has operated since 2004.
Supply Duct Cleaning Pricing in San Diego
Most San Diego homes run between $450 and $900 for supply duct cleaning, depending on three factors: the number of supply registers, the length and accessibility of the duct runs, and the amount of buildup inside the ducts. For a detailed breakdown, see How Much Does Air Duct Cleaning Cost? (2026 Price Guide) - San Diego, CA. Homes under 1,500 square feet with 6 to 8 supply vents typically fall at the lower end of that range. Larger homes with 12 or more vents, or homes where the ducts haven’t been touched since construction, land at the higher end.
Here’s a breakdown you can use as a reference before calling:
- Small home (up to 8 supply vents): $450 – $575
- Mid-size home (8 to 12 supply vents): $550 – $750
- Large home (12+ supply vents): $700 – $900
- Heavily clogged or neglected system: Add $100 – $200 for additional labor time
The written price covers the full job: inspection, register removal, brush agitation, negative-air extraction, HEPA filtration, register reinstallation, and the 365-Day Done Right Promise. There’s no separate charge for the guarantee. There’s no charge for the estimate either. Call (619) 695-0424 and you’ll get a price range over the phone, then a confirmed written price before any work starts.
What affects the cost more than anything is how long the debris has been building. A supply duct system that was cleaned five years ago cleans faster than one that’s been collecting since 1988. The brush moves through the duct and breaks up the layer against the wall. If that layer is an inch thick, the job takes longer, and that time is reflected in the quoted price. You’ll know the number before we arrive, because no-hassle upfront pricing is a standing commitment at Kestrel Air Duct San Diego, not a promotional offer.
FAQs – Supply Duct Cleaning
How much does supply duct cleaning cost in San Diego?
Supply duct cleaning in San Diego typically costs between $450 and $900 for a full home, with most houses falling in the $550 to $750 range. For San Diego-specific pricing details, read How Much Does Air Duct Cleaning Cost in San Diego, CA? (2026 Price Guide). The price depends on how many supply vents you have and how much buildup is inside the ducts. Call (619) 695-0424 for an exact quote. The estimate is free and the price you’re quoted is the price you pay.
How long does supply duct cleaning take?
A standard supply duct cleaning job on a San Diego home takes 3 to 5 hours from start to finish. Smaller homes with fewer vents finish faster; larger homes or systems with heavy buildup take longer. We give you a defined arrival window when you book, and the technician completes the job in one visit.
Is supply duct cleaning the same as air duct cleaning?
Supply duct cleaning is one part of a complete air duct cleaning. The supply ducts carry conditioned air from your HVAC unit to the rooms. A full Air Duct Cleaning in San Diego also includes the return ducts, which pull air back into the system. When we clean your system, we handle the full loop. That’s the only way to know the whole system is actually clean.
Can you clean just the supply ducts without doing the rest of the system?
We always recommend cleaning the full system rather than just the supply side, because dust cycles through the entire loop. If the return side stays dirty, the supply ducts get dirty again quickly. That said, if you’re on a budget or have a specific concern, our team will discuss what makes sense for your home. Call (619) 695-0424 and we’ll walk you through the options in plain language.
How long does the 365-Day Done Right Promise last, and what does it cover?
The 365-Day Done Right Promise covers the supply duct cleaning work for one full year from the date of service. If the cleaning falls short, if airflow problems return, or if visible dust reappears in the ducts within that period, we come back and make it right at no charge. The promise is in writing on every job, and there’s no fine print requiring you to pay for the return visit. That guarantee is part of the Kingswell Guarantee and has been on every Kestrel job since 2004.
Do I need to do anything to prepare for supply duct cleaning?
No heavy preparation is required. It helps to clear space around the registers so the technician can work efficiently, and we ask that pets be kept in a separate room during the visit. The technician will handle everything else: removing registers, protecting floors and furniture around the work area, and leaving the space cleaner than when we arrived. Call (619) 695-0424 to schedule, and we’ll confirm all the details on the phone.
Written by Dale Whitmore, Owner at Kestrel Air Duct San Diego, serving San Diego.