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
After
Before
After
Before
AfterSupply Duct Cleaning in San Francisco, CA
Supply duct cleaning removes the dust, pet hair, and debris that builds up inside the ducts carrying heated or cooled air from your furnace into each room. In San Francisco, where homes stay sealed against fog and ocean air for much of the year, that buildup tends to recirculate through your living spaces instead of escaping outdoors. At Linden Air Duct San Francisco, we clean supply ducts with truck-mounted negative-pressure extraction equipment from Rotobrush, give you a written price before any work begins, and send a background-checked, photo-badged technician whose name and picture arrive on your phone before we ever ring the bell. If you’re noticing dust settling on furniture within a day or two of wiping it down, call us at (951) 527-6259 for a free estimate.
Supply ducts are the outbound side of your system: the network of sheet-metal or flexible tubes that push conditioned air from the air handler into your bedrooms, living room, kitchen, and hallways. They’re different from return ducts, which pull room air back to the furnace to be filtered and reconditioned. Supply ducts matter because they sit downstream of your air filter. Once dust gets past the filter or enters through small gaps in the ductwork, it rides the airstream directly into the rooms where you sleep, cook, and watch TV. Our full Air Duct Cleaning in San Francisco service covers both supply and return sides, but many San Francisco homeowners call us specifically because the supply registers in certain rooms are blowing visible dust or because one bedroom always smells mustier than the rest of the house.
Key Takeaways
- Supply duct cleaning in San Francisco typically costs between $350 and $650 for an average single-family home, depending on the number of supply runs, accessibility of the ductwork, and how long it’s been since the last cleaning.
- The job usually takes 3 to 5 hours from setup to final walkthrough, and you can stay home the entire time.
- Linden technicians are background-checked, identity-verified, and photo-badged, and you receive the tech’s name and photo before the appointment.
- Every job gets a written price before work starts. No exceptions, no surprise invoices at the end.
- Our 365-Day Done Right Promise covers the work in writing. If it’s not right, we come back and make it right.
When You Need Supply Duct Cleaning
Not every home needs supply duct cleaning on a fixed schedule. The right time depends on what you’re seeing, smelling, and breathing. Here are the specific signs we hear about most from homeowners in San Francisco’s hillside neighborhoods, from the Sunset and Richmond out to Bernal Heights and Noe Valley:
- Dust returns within 48 hours of cleaning. If you wipe down a dresser or bookshelf and the same fine gray film is back two days later, that dust is riding your supply airstream. In older San Francisco homes with original 1920s and 1930s ductwork, gaps at the duct joints pull in attic and crawlspace dust, and the supply side delivers it straight into your rooms.
- One room is consistently dustier than the others. A bedroom at the end of a long supply run often collects more debris because air velocity drops, allowing particles to settle in the duct before they reach the register. We see this pattern regularly in the long, narrow floor plans common to Marina and Cow Hollow homes.
- You smell something musty when the heat kicks on. San Francisco’s fog season keeps crawlspaces and basements damp from June through September. If your supply ducts run through a damp crawlspace, that moisture can carry a musty odor into the heated air, especially during the first few minutes after the furnace starts.
- You’ve just finished a remodel or major repair. Drywall dust, sawdust, and plaster particles are fine enough to travel through your return side, past the filter, and settle inside supply ducts. Homes in neighborhoods like Glen Park and Eureka Valley with lots of renovation activity commonly need a post-remodel cleaning to keep construction dust from circulating for months afterward.
- Anyone in the house has dust-related allergies or asthma. Supply ducts that haven’t been cleaned in years hold a reservoir of dust mites, pet dander, and pollen. Every heating or cooling cycle re-suspends some of that material and pushes it into your living spaces. For older homeowners and parents with young children, this is often the deciding factor.
- Your registers show visible dust buildup or staining. Remove a supply register and look inside with a flashlight. If you see a gray felt-like coating on the duct walls or dust bunnies accumulated around the register boot, the supply side is due.
Our Supply Duct Cleaning Process
We follow a documented process on every supply duct cleaning job, and we tell you what we’re doing at each step. That transparency matters, especially if you’re home alone or have young children in the house. You’ll know the technician’s name before they arrive, you’ll see their photo ID at the door, and you’ll get a plain-English explanation of what we found and what we did.
- Walkthrough and inspection. The technician walks your home with you, identifies every supply register, locates the air handler, and checks the condition of accessible ductwork. We note any visible gaps, disconnected joints, or areas of heavy buildup before we touch anything.
- Written price confirmation. Before any equipment comes out of the truck, you receive the final price in writing. That price covers the entire scope of work we discuss during the walkthrough. If we find something unexpected during the job, we stop and talk to you first. No surprise charges at the end, ever.
- Register and supply-side protection. We remove each supply register and cover furniture and flooring as needed. The technician wears shoe covers and lays down drop cloths in the work path. You’ll know exactly where we’ll be and what we’ll be touching.
- Negative-pressure extraction on the supply side. We connect our Rotobrush truck-mounted vacuum system to create negative pressure inside your supply ductwork, then run agitation tools through each supply run to dislodge debris. The vacuum captures loosened dust, pet hair, and construction debris rather than blowing it into your rooms. This is the same approach used in commercial and medical building duct cleaning, scaled for residential systems.
- Supply register cleaning. Every supply register is cleaned and wiped down before being reinstalled. Register boots, the transition pieces between the duct and the floor or wall opening, are cleaned as part of the supply-side scope because that’s where dust tends to collect in visible clumps.
- Airflow verification and final walkthrough. After cleaning, we check airflow at each supply register and walk you through the results. If we identified any duct leaks or disconnections during the inspection, we’ll show you what we found and provide a separate written quote for any air duct repair work, which is always covered by a written guarantee with a free second visit if the repair does not hold.
Supply Duct Cleaning Pricing in San Francisco
Supply duct cleaning in San Francisco generally runs between $350 and $650 for a typical single-family home. Smaller condos and flats at the lower end of that range; larger homes with multiple floors, long supply runs, or older metal ductwork land at the higher end. Every estimate we give includes supply-side cleaning at each register, register removal and reinstallation, boot cleaning, and negative-pressure extraction with our Rotobrush system.
Three main factors move the price:
- Number of supply runs and registers. A two-bedroom Marina condo with six supply registers costs less than a four-bedroom St. Francis Wood home with fourteen. More runs mean more time working the agitation tools through each branch and more linear feet of ductwork to clean.
- Accessibility of the ductwork. Older San Francisco homes, especially those with original ductwork in tight crawlspaces or finished basements, often require additional access work. If registers are painted shut or duct sections are difficult to reach, the job takes longer. We’ll always tell you if accessibility affects the price before we start, never after.
- Condition and age of the system. Ductwork that hasn’t been cleaned in a decade or more takes longer to bring back to a clean state. If supply ducts are heavily loaded, we may need additional passes through the system, which we build into the quoted price upfront.
Here’s a straightforward breakdown of what you can expect:
| Service Component | Typical Range in San Francisco |
|---|---|
| Supply duct cleaning (per full system, up to 10 registers) | $350 – $450 |
| Additional supply registers (per register) | $15 – $25 each |
| Whole-system duct cleaning (supply and return) | $550 – $900 |
| Supply register replacement (if any are damaged or stripped) | $20 – $45 per register |
You’ll notice we don’t do per-vent bait pricing where the quoted number assumes an unrealistically low vent count and the final invoice doubles. The price we put in writing after the walkthrough is the price you pay. Call (951) 527-6259 for an exact quote on your home, and the estimate is free.
Why San Francisco Homes Need Supply Duct Cleaning More Than Most
San Francisco’s climate does two things to ductwork that inland cities don’t experience. First, the marine layer keeps relative humidity high for much of the year, particularly on the west side of the city. The Sunset District, Richmond District, and Parkside sit in fog for hours each summer morning, and that moisture works its way into crawlspaces and basements. Duct interiors in those neighborhoods hold more moisture than duct interiors in, say, Walnut Creek or Concord, and damp duct surfaces trap dust more effectively than dry ones.
Second, San Francisco homes are built tight. Victorian and Edwardian-era construction used multiple small rooms, and later remodels often sealed up walls and floors without ever upgrading the original gravity-style or low-velocity ductwork. When you combine tight construction with duct systems that were never designed for modern furnaces, you get slower air movement and more dust settling inside the supply runs. We regularly see this in the Mission and Potrero Hill, where converted industrial spaces and old flats have ductwork that’s been patched and extended over decades.
If you’ve lived in the city long enough, you’ve probably met a neighbor who replaced their furnace and still found dust on every surface. The furnace wasn’t the problem. The supply ducts were. Cleaning them with our Air Duct Cleaning services is the lower-cost fix that most people try after the expensive one didn’t work. We’d rather you try it in the other order.
Who Is Coming to Your Door
We understand that letting a stranger into your home is a genuine decision. That’s why Linden Air Duct San Francisco operates to the Threshold Standard on every job: every technician is background-checked and identity-verified, arrives in a clean, marked uniform, and carries a photo ID badge that they show at the door. Before your appointment, you’ll receive the technician’s name and photo by text or email, so the person standing on your porch matches the person you already saw on your phone. If you ever have a question about who you’re speaking with, call us at (951) 527-6259 and a live person will answer. We’ve operated to this standard since 2004 as part of the Threshold Group family, and Marcus Veale leads our San Francisco team.
We do not use subcontractors. The technician who cleans your supply ducts works for Linden, was trained on our equipment, and carries our written guarantees in his truck. You won’t meet a rotating cast of third-party crews. You’ll meet the person whose name and photo you already have.
Equipment and Products We Use
We clean supply ducts with professional-grade negative-pressure extraction equipment from Rotobrush, the same brand you’ll find in commercial duct cleaning fleets across the country. Our truck-mounted vacuum units pull air through the supply side at high volume while rotating brushes and agitation tools loosen stuck-on debris. This is different from a portable shop-vac setup, which simply doesn’t have the airflow to pull debris from a full supply run. We chose Rotobrush because it’s trade-trusted equipment designed for exactly this kind of work, and we maintain and service it to manufacturer specifications.
For homeowners who want to go further after a cleaning, we also work with air-quality products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. These include media filters, UV air treatment systems, and filtration upgrades that fit into your existing ductwork, and we can confirm fit with a Video Inspection. We’ll recommend these only if the inspection shows they’d actually help. We won’t upsell you on equipment you don’t need, and we’ll always tell you what a product can and cannot do before you decide.
365-Day Done Right Promise
Every supply duct cleaning from Linden Air Duct San Francisco is covered by the 365-Day Done Right Promise. Here’s what that means in plain terms: if you believe the work wasn’t done right, you call us within 365 days, and we come back to make it right at no charge. That promise is in writing on every job, not buried in fine print or explained away over the phone. It’s our answer to the industry-wide problem of duct cleaners who disappear the moment the invoice is paid. We’ve built our reputation in San Francisco on showing up, doing the work, and standing behind it for a full year.
For any air duct repair work, the same standard applies: every repair carries a written guarantee, and if a covered repair fails, we return for a free second visit. We’re not interested in being the cheapest duct cleaner in San Francisco. We’re interested in being the one you call back, and the one you tell your neighbors about. Marcus Veale and the rest of our team know that in a city this dense, word travels fast.
FAQs – Supply Duct Cleaning
How much does supply duct cleaning cost in San Francisco?
Supply duct cleaning in San Francisco typically costs between $350 and $650 for a full single-family home, with most jobs falling between $400 and $500. The exact price depends on how many supply registers you have, how accessible your ductwork is, and how long it’s been since the last cleaning. We give every customer a written price before work begins, so you’ll know the exact number before you approve the job. Call (951) 527-6259 for a free estimate on your specific home.
Can you clean only the supply ducts, or do I need the whole system done?
Yes, we clean supply ducts as a standalone service if that’s what your home needs. Some customers call us because dust is blowing out of one or two specific registers, while others want the full supply and return system cleaned together. During the walkthrough, we’ll show you what we’re seeing on both sides and give you a price for each option, so you can choose based on actual conditions, not a bundle pitch. The supply-only option covers every supply register, the register boots, and the full supply runs from the air handler to each room.
How long does supply duct cleaning take?
A typical supply duct cleaning in San Francisco takes between 3 and 5 hours from start to finish. That includes the walkthrough, written price confirmation, equipment setup, cleaning at each supply register, and the final airflow check. Homes with more registers, older ductwork, or difficult access may take longer, and we’ll tell you the expected time frame before we begin. You can stay home during the entire job, and the work is quiet enough to have a conversation over.
Is supply duct cleaning worth the price?
For most San Francisco homeowners with visible dust, musty smells, or allergy concerns, supply duct cleaning is worth it. You’re removing the reservoir of dust, dander, and debris that sits downstream of your filter and recirculates through your home every time the furnace runs. If the issue is isolated to one or two rooms, supply-only cleaning addresses the problem directly without paying for full-system work. The key is hiring a company that uses real negative-pressure extraction equipment and gives you a written price before work starts. That’s exactly how we operate, and you can call (951) 527-6259 if you’d like to talk through whether it makes sense for your home.
Get a Free Supply Duct Cleaning Estimate in San Francisco
If your supply registers are blowing dust, your rooms smell musty when the heat kicks on, or you just want a professional assessment of what’s inside your ductwork, call Linden Air Duct San Francisco at (951) 527-6259. A live person answers 24/7, and we’ll set up a walkthrough that works for your schedule. You’ll get a written price before any work begins, you’ll know the name and photo of your technician before they arrive, and every job is covered by the 365-Day Done Right Promise. We serve homeowners throughout San Francisco, from the Oakland side of the bay to the avenues, and we’re ready to help you breathe easier at home.
Written by Marcus Veale, Owner at Linden Air Duct San Francisco, serving San Francisco.