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AfterHow Much Does Duct Cleaning Cost in San Francisco?
Duct cleaning in San Francisco typically costs between $450 and $1,100 for a full system cleaning of a standard single-family home, with most homeowners landing around $650 for the complete job. Condos and smaller apartments in neighborhoods like the Inner Sunset or Nob Hill often run closer to $350 – $550, while larger Victorians in Pacific Heights or homes with extensive ductwork can exceed $1,500.
Every job at Brandt HVAC starts with a written price before any work begins. You’ll know the exact number before a technician touches a single vent.
Duct Cleaning Cost Breakdown (2026)
Here’s what San Francisco homeowners are paying for duct cleaning this year, broken down by the actual work involved:
| Service Component | Typical Price Range (San Francisco, 2026) |
|---|---|
| Full duct cleaning (single system, up to 12 vents) | $450 – $1,100 |
| Condo, apartment, or small home (under 1,000 sq ft) | $350 – $550 |
| Each additional vent beyond 12 | $15 – $35 per vent |
| Sanitizing or antimicrobial treatment | $75 – $200 |
| Dryer vent cleaning (standalone) | $100 – $180 |
| Return air registers + plenum cleaning | $120 – $300 |
| Furnace blower motor cleaning | $80 – $175 |
| Full HVAC system inspection (with duct cleaning) | Often included; $95 – $235 if billed separately |
What moves the number up or down? The square footage of your home, how many vents and returns you have, whether the ductwork is accessible from a basement or requires ladder work, and how long it has been since the last cleaning. Homes near Ocean Beach or the Sunset with older galvanized ducts often need more time because salt air accelerates corrosion and debris buildup. We’ll show you the written price before we start, so there are no discoveries on the invoice.
What Affects Duct Cleaning Pricing in San Francisco
- Home size and vent count. A 3-bedroom Noe Valley Edwardian with 14 vents costs more than a 1-bedroom South Beach condo with 5. More vents means more time and more linear feet of ductwork.
- Age of the ductwork. Many San Francisco homes have original ductwork from the 1930s through the 1960s. Older galvanized steel ducts hold more debris and can require slower, gentler cleaning to avoid damage.
- Access difficulty. Basements, crawl spaces, and rooftop-mounted units all change the labor equation. A furnace tucked into a tight Marina District garage will take longer to reach than one in a spacious Sunset District utility room.
- Contamination level. Pet hair, construction dust from a recent remodel, or visible mold growth all add time. If a contractor recently renovated your kitchen in Potrero Hill, expect extra fine dust throughout the system.
- Add-on services. Sanitizing treatments, deodorizing, or sealing small duct leaks add to the total. We’ll always give you the add-on price in writing before any work starts.
- Seasonal demand. Late fall, when San Francisco fog settles in and homeowners fire up furnaces for the first time, is the busiest duct cleaning season. Booking mid-summer can sometimes save you $50 – $100.
Is Duct Cleaning Worth It? What San Francisco Homeowners Should Know
The short answer for most San Francisco homes: yes, if it has been more than 5 years since your last cleaning, or if you notice visible dust puffing from vents, uneven heating, or unexplained allergy symptoms. Our own technicians report that homes in the Richmond and Mission districts with pets routinely show 2 – 3 inches of packed dust and hair in the return plenum after just a few years.
But it is not a scam-protection service the way some national chains market it. If a company quotes you $99 for a whole-home duct cleaning and then “finds” mold that somehow costs $3,000 to treat, hang up. A legitimate San Francisco duct cleaning should be quoted as one written price, which is exactly how Brandt HVAC operates. The number you approve is the number you pay.
Duct cleaning also pairs well with an AC tune-up. If you are already having the system opened up, cleaning the ducts while the blower is exposed saves a return trip and keeps your system running efficiently. A tune-up in San Francisco runs $95 – $235, and if your ducts are clean, the system does not have to fight restricted airflow, which means lower PG&E bills through the foggy season.
What Actually Happens During a Professional Duct Cleaning
You should know exactly what you are paying for. Here is the step-by-step of a proper duct cleaning in San Francisco, the way our technicians perform it:
- Inspection and written quote. The technician walks your home, checks the furnace or air handler, counts vents and returns, and gives you a written price before any work starts. If you do not like the number, we leave, and you owe nothing.
- System protection. We lay drop cloths and seal off each register so loosened debris does not blow into your living room.
- Negative-pressure setup. A high-powered vacuum is connected to the main trunk line. This creates suction inside the ducts so debris is pulled out, not pushed around.
- Agitation and brushing. Each duct run is brushed and air-scoured with rotating brushes and compressed air tools to dislodge packed dust, pet hair, and debris.
- Return and plenum cleaning. The return air side is cleaned separately, including the plenum box where dust collects before entering the filter.
- Blower and filter check. The furnace blower motor is cleaned or at minimum inspected, and the filter is changed if needed.
- Final walkthrough. The technician shows you what came out of your ducts (it is usually more than expected) and confirms every vent is blowing strong, clean air.
The whole job takes 3 – 5 hours for a typical San Francisco home. If someone quotes you a 45-minute duct cleaning, they are not cleaning your ducts.
How to Save on Duct Cleaning
- Bundle it with a tune-up. If your AC or furnace is due for its annual maintenance ($95 – $235 for a tune-up), schedule the duct cleaning for the same visit. You will typically save on the combined labor.
- Change your filter first. A clogged filter forces your blower to work harder and pulls more dust into the ducts. A clean filter means less debris to remove when we arrive.
- Seal the returns during any remodel. San Francisco homes remodel constantly. If you are doing drywall work in the Castro or Glen Park, cover the return vents. Construction dust is the number one reason for premature duct contamination.
- Ask about off-season pricing. Duct cleaning demand drops in late spring and early summer. Some San Francisco companies, including ours, run lower rates during those quieter months.
- Get one honest quote in writing. Price shopping is smart, but beware of bait-and-switch operators. If one quote is half the price of two others, ask what is not included. At Brandt HVAC, the written price covers the entire job, and we never upsell mid-service.
Call (559) 245-8807 and we will walk you through what your home actually needs. The estimate is free, and the number we quote is the number you pay.
FAQs – Duct Cleaning Cost
How much does air duct cleaning cost in San Francisco for a 2,000 sq ft home?
Most 2,000-square-foot homes in San Francisco fall between $550 and $900, including all vents, returns, the plenum, and blower inspection. Older homes with more than 14 vents or significant pet hair buildup can push toward $1,100. Call (559) 245-8807 for a free written estimate for your specific home.
Is it cheaper to clean ducts or replace them?
Cleaning is far cheaper. Full duct replacement in San Francisco runs $3,000 to $8,000 or more depending on accessibility through walls and floors. Cleaning is $450 to $1,100. Replace only when ducts are damaged, rusted through, or have uncontrolled mold growth inside the insulation. A good technician will tell you honestly which one you need, and at Brandt HVAC, that recommendation comes with a written price either way.
How often should ducts be cleaned in San Francisco?
Every 3 to 5 years for most San Francisco homes. Homes with multiple pets, active construction nearby, or residents with severe allergies should consider every 2 to 3 years. Ocean Beach, Outer Richmond, and other fog-belt neighborhoods with persistent moisture may need slightly more frequent attention because damp air encourages dust to cake onto duct walls.
Can duct cleaning help with the smell in my San Francisco home?
Yes, often. Musty, dusty, or stale odors trapped in ductwork are typically caused by accumulated debris, pet dander, or moisture in the system. A cleaning of the ducts and plenum ($450 – $1,100) plus an antimicrobial treatment ($75 – $200) frequently eliminates these smells. If the odor persists after cleaning, the source may be elsewhere: a leaking drain pan, a dirty evaporator coil, or a pest issue in the crawl space.
How long does a professional duct cleaning take, and what is same-day availability like in San Francisco?
A proper single-family duct cleaning takes 3 to 5 hours. Some companies advertise 30-minute “blow and go” jobs, which we do not recommend; this method does not actually remove caked dust. We can often schedule within 3 to 5 business days, and we answer the phone with a live person 24/7 at (559) 245-8807 if you want to check availability right now.
Do you give a written quote before starting duct cleaning work?
Yes, on every job, with no exceptions. The technician will inspect your ductwork, count the vents and returns, and hand you a written price for the complete job before any equipment is brought in. You approve the number before work starts. There is no hidden fee discovered at the end, and the price we write is the price you pay. Call (559) 245-8807 and we can give you a clear sense of what your home will cost over the phone, free.
Why San Francisco Homeowners Choose Brandt HVAC for Duct Cleaning
Duct cleaning is an intimate service. A stranger spends hours in your home, walking through bedrooms, opening vents, and working near your family. That is exactly the situation where our approach matters most. Every Brandt HVAC technician is background-checked, identity-verified, and sent to you by name and photo before the visit. When the bell rings, the person at the door matches the person you were told to expect, and they show a photo ID badge before stepping inside. That is the Threshold Verified standard, and it is how we have operated since 2003 as part of the Threshold Group family of home-service companies.
Devin Marlowe leads our San Francisco team with one standing rule: every job gets a written price before work begins, and every repair or service is backed by our 365-Day Done Right Promise. If something is not right, we return and make it right, at no additional charge. No argument, no fine print, no runaround.
The name Brandt comes from an old word for a firebrand, a fitting name for the work of keeping a home warm and the air moving clean through it. Whether you live in a top-floor walk-up in North Beach or a full single-family home in West Portal, our team arrives on time, works clean, and leaves you with air that moves freely and a written guarantee of the work.
When your ducts are clean, your furnace and AC do not work as hard, your home warms and cools more evenly, and the dust settling on your shelves drops noticeably. It is one of the simplest quality-of-life improvements you can make to a San Francisco home, especially one that has been lived in for decades. Call (559) 245-8807 for a free estimate, any day of the week, any hour. A live person answers the phone.
Pricing reflects the San Francisco market as of 2026. Brandt HVAC Co San Francisco offers free estimates – call (559) 245-8807.
Written by Devin Marlowe, Owner at Brandt HVAC Co San Francisco.
What Our Customers Say
"Frozen evaporator coil in July. Cleaned it, replaced a clogged filter, and checked the airflow. Gave me a simple schedule for filters."
- Hannah L."Furnace short cycled all winter. He found a dirty flame sensor and cleaned it. Twenty minutes and a small bill."
- George Q."Replaced our 18-year-old AC with a new high efficiency one. Gave three options with real numbers and did not push the priciest."
- Elena V.