Whole-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
Before
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Before
AfterAir Duct Cleaning in South San Francisco, CA
Dryer vent cleaning in South San Francisco costs between $129 and $249 for most single-family homes, and it’s a job that matters more here than in drier parts of the Bay Area. The city’s marine fog layer pushes moisture into vent runs daily, which turns lint from a nuisance into a damp, packed obstruction. Call (806) 606-6902 and we’ll give you a written price before any panel comes off.
Why South San Francisco Homes Are Different
South San Francisco sits at a geographic pinch point where cold, wet air funnels off the bay and over the peninsula every afternoon. That persistent dampness keeps indoor humidity higher than in San Bruno or Millbrae, and it creates conditions where mold and mildew can colonize inside ductwork, especially in crawlspace-run ducts common to the city’s mid-century housing stock.
The bulk of residential building here happened between 1940 and 1965. Ranch homes and bungalows built for steel and meatpacking workers now have galvanized duct systems that are 60 to 80 years old, poorly sealed at joints, and carrying decades of industrial particulates. The Lindenville and East Grand Avenue corridors add another layer: mixed-use buildings where residential-style ductwork sometimes serves spaces adjacent to lab or clean-room environments, demanding documentation protocols a typical residential crew never deals with.
Our Main South San Francisco Services
Two services generate most of our calls from South San Francisco homeowners: full air duct cleaning and HVAC system cleaning. Each has its own page below, but here’s what the work involves locally.
Air Duct Cleaning in South San Francisco
Air duct cleaning in South San Francisco means removing the particulate load that has accumulated over decades inside galvanized runs, often in homes built when the city’s industrial base was at its peak. We photograph every run before and after, and we give you a written price before the first register is removed. Full details, including pricing and what the camera shows, are on the Air Duct Cleaning in South San Francisco page.
HVAC Cleaning in South San Francisco
HVAC cleaning here covers the full air path: evaporator coil, blower assembly, supply and return plenums, and the duct runs themselves. In South San Francisco the coil often carries a heavier biofilm load because of the fog-driven humidity, which means a coil that looks clean from the outside can still be restricting airflow. Read the HVAC Cleaning in South San Francisco page for the full scope and price table.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
BeforeAfterDryer Vent Cleaning in South San Francisco
Dryer vent cleaning in South San Francisco runs $129 to $249 for most homes, and it is the single highest-ROI service we perform in this city. The combination of 1940s-to-1960s vent runs, tight utility rooms, and fog-driven humidity means lint here tends to pack into a dense, damp obstruction rather than remaining dry and fluffy. That condition slows dry times, raises energy use, and creates the exact scenario where a dryer fire starts. We document the inside of your vent run with before-and-after photos on every job. For the full scope of this service, see Dryer Vent Cleaning.
What we find in South San Francisco vents is consistent: the first elbow behind the dryer collects a hardened shell, and in many older homes the run itself is either coiled flex that was never properly routed or rigid pipe that has separated at a joint. Both conditions are visible on camera, and both are correctable in one visit.
Dryer Vent Inspection
Signs you need it
Clothes still damp after a full cycle, a dryer exterior that’s hot to the touch, or a faint burning smell while the machine runs.
What it costs in South San Francisco
A standalone dryer vent inspection costs $79 to $129, and we apply that amount toward the cleaning if you schedule it on the same visit.
How we do it
We run a camera through the full vent path from the dryer connection to the exterior termination, record static-pressure drop, and show you the images before recommending any work.
Vent Cleaning
Signs you need it
Visible lint at the exterior vent hood, cycle times stretching past 60 minutes, or more than 12 months since the last professional cleaning.
What it costs in South San Francisco
Whole-system vent cleaning costs $129 to $249 depending on run length, access, and how packed the line is.
How we do it
We use a rotary brush and HEPA-filtered negative-pressure extraction from the exterior termination, pulling the debris out rather than pushing it into the wall cavity.
Lint Removal
Signs you need it
The vent hood flap does not fully open during operation, or you can see a mat of lint behind the exterior cover.
What it costs in South San Francisco
Heavy lint removal is included in the vent cleaning price, but when it involves wall-cavity access or a disconnected run it runs $180 to $320.
How we do it
We open the affected section, mechanically remove the packed lint with specialized extraction tools, reattach the run, and photograph the finished line.
Bird Guard Installation
Signs you need it
Nesting material visible at the exterior vent, bird sounds from the vent path, or recurring clogging despite recent cleaning.
What it costs in South San Francisco
Bird guard installation runs $75 to $150 per termination, including the screen and the mounting hardware.
How we do it
We mount a stainless mesh guard over the exterior hood, verify the dryer still maintains proper airflow, and document the finished installation with a photo.
What Dryer Vent Cleaning Costs in South San Francisco
| Item | Typical range in South San Francisco |
|---|---|
| Dryer vent inspection | $79 - $129 |
| Whole-system vent cleaning | $129 - $249 |
| Heavy lint removal with access | $180 - $320 |
| Bird guard installation | $75 - $150 per vent |
How often should I clean my dryer vent in South San Francisco?
Every 12 months, and more often if you run the dryer daily or have a long vent run. The fog-driven humidity in South San Francisco compacts lint faster than in drier cities, making annual cleaning a practical minimum.
Why does my dryer take two cycles to dry clothes?
A restricted vent is the most common cause we find in South San Francisco, especially in older homes with long or poorly routed runs. Call (806) 606-6902 and we’ll camera the line and show you the obstruction.
Duct Repair & Sealing in South San Francisco
Duct repair and sealing in South San Francisco typically runs $320 to $1,200 depending on access and the number of joints involved. In this city, the problem is almost always the same: 60-to-80-year-old galvanized duct with separated seams, missing tape, or a disconnected run in the crawlspace. The marine air that pushes into those spaces daily means every leak is also pulling moist, particulate-laden air into the system. We write the price before work starts and photograph every repaired section. For the broader service scope, see Duct Repair & Sealing.
What we document on camera in South San Francisco homes follows a pattern: the register end looks acceptable, but the middle of the run is where the separation happens. Homeowners never see those sections, which is why we photograph them as standard practice.
Duct Sealing
Signs you need it
Dust accumulating quickly on surfaces, uneven temperatures between rooms, or a crawlspace that smells musty while the HVAC runs.
What it costs in South San Francisco
Sealing exposed duct joints and seams typically runs $320 to $600 for the average mid-century home, depending on the number of joints.
How we do it
We locate every joint and seam, seal with UL-listed mastic or aluminum tape appropriate to the duct type, and photograph each work location.
Flex Duct Repair
Signs you need it
A collapsed section visible in the attic or crawlspace, rooms that never reach the thermostat setpoint, or crushed flex where it passes through framing.
What it costs in South San Francisco
Flex duct replacement runs $150 to $460 per run depending on length, diameter, and access.
How we do it
We remove the damaged section, install new flex duct to manufacturer length specifications, and reconnect the run with proper mastic and clamp seals.
Duct Insulation
Signs you need it
Exposed metal duct in a crawlspace, condensation on the duct surface during summer, or supply air that feels warm by the time it reaches the register.
What it costs in South San Francisco
Insulating an exposed duct run costs $5 to $9 per linear foot, with most single-run projects falling between $250 and $500.
How we do it
We wrap the run with the correct R-value insulation for the space, seal all vapor barriers, and photograph the finished installation.
What Duct Repair & Sealing Costs in South San Francisco
| Item | Typical range in South San Francisco |
|---|---|
| Duct joint and seam sealing | $320 - $600 |
| Flex duct replacement | $150 - $460 per run |
| Duct insulation | $5 - $9 per linear foot |
How much air is leaking from my ducts?
In South San Francisco’s older homes, leakage of 20 to 30 percent is common, especially in crawlspace-run duct. We can measure it and show you the separated joints on camera before sealing.
Do I need a permit for duct repair in South San Francisco?
Most duct sealing and flex replacement work does not require a permit in South San Francisco. If your job involves modifying the air-distribution design, we will tell you in the written scope before any work starts.
Air Quality & Sanitizing in South San Francisco
Air quality and sanitizing in South San Francisco typically runs $230 to $600 per treatment, and the city’s fog-driven humidity means mold treatment is the most requested service in this category. When indoor air stays damp for months at a time, the inside of a duct system becomes a place where spores can settle and multiply, especially in crawlspace runs. We photograph the surfaces before and after treatment, and we write the price before starting. For the full category, see Air Quality & Sanitizing.
The pattern we see in South San Francisco homes built during the 1940s and 1950s is specific: registers located in walls near the floor pull in air that has been sitting in a damp crawlspace, and that air carries whatever is growing there. Treating just the coil or just the ducts without addressing the source of the moisture rarely works.
Mold Treatment
Signs you need it
A persistent musty smell from the registers, dark staining visible around the register boots, or respiratory symptoms that improve when you leave the house.
What it costs in South San Francisco
Whole-system mold treatment costs $450 to $950 depending on the number of runs and the severity of what the camera finds.
How we do it
We capture the affected areas on camera, apply an EPA-registered antimicrobial to interior duct surfaces, and document the after-photos as part of the job record.
Odor Removal
Signs you need it
Odors that return after every cleaning attempt, a smell that moves from room to room with the HVAC cycle, or lingering cooking or pet odors embedded in the system.
What it costs in South San Francisco
Targeted odor removal runs $230 to $450 per treatment, and the price is set before work begins based on what the camera shows.
How we do it
We apply a non-toxic deodorizing treatment across interior duct surfaces and plenums, then run the system to distribute the treatment evenly.
UV Light Installation
Signs you need it
Recurring biological growth on the coil despite professional cleaning, or an HVAC system that sits in a high-humidity crawlspace or attic.
What it costs in South San Francisco
UV light installation runs $580 to $1,200 for the unit, the mounting, and the electrical connection to the air handler.
How we do it
We mount the UV unit in the supply plenum or at the coil, wire it so it operates only when the blower runs, and label the installation for future service.
What Air Quality & Sanitizing Costs in South San Francisco
| Item | Typical range in South San Francisco |
|---|---|
| Whole-system mold treatment | $450 - $950 |
| Odor removal treatment | $230 - $450 |
| UV light installation | $580 - $1,200 |
Does mold in my ducts actually affect my health?
Exposure to mold spores can trigger respiratory symptoms, particularly in people with asthma or allergies. In South San Francisco’s damp conditions, the inside of a duct system is a realistic place for spores to concentrate.
Will the smell come back after odor treatment?
If the source of the moisture remains, the underlying condition can return. That’s why we photograph and write a scope for whatever the camera shows before we treat any surface.
Brands We Service in South San Francisco
We service all major equipment brands found in South San Francisco homes, and we keep common parts stocked locally for Rotobrush and Abatement Technologies equipment on our own trucks. See our brands for the full list and what we keep on hand.
Pricing for Air Duct Cleaning in South San Francisco, CA
| Service | Typical range in South San Francisco |
|---|---|
| Dryer vent inspection | $79 - $129 |
| Dryer vent cleaning | $129 - $249 |
| Heavy lint removal | $180 - $320 |
| Duct joint and seam sealing | $320 - $600 |
| Flex duct replacement | $150 - $460 per run |
| Duct insulation | $5 - $9 per linear foot |
| Whole-system mold treatment | $450 - $950 |
| Odor removal treatment | $230 - $450 |
| UV light installation | $580 - $1,200 |
What pushes a price up in South San Francisco is almost always access: crawlspace runs under mid-century additions, original duct that has never been opened, and tight utility rooms where the dryer vent sits near the water heater. We write the price before any work starts, per Haven Standard Clause 1, and the number on that page is the number you pay.
Neighborhoods We Serve in South San Francisco
We work throughout South San Francisco weekly, from the post-war blocks near Orange Memorial Park to the newer developments on the east side of Highway 101. Our crews are local to the peninsula and can typically schedule within a few business days.
- Westborough
- Sunshine Gardens
- Winston-Serra
- Terrabay
- Lindenville
Service Area - Cities Near South San Francisco
If you’re in a neighboring community, we cover the full upper peninsula. That includes Daly City, CA, San Bruno, CA, Millbrae, CA, and Pacifica, CA. The same written-price policy and photo record apply everywhere we work.
Serving South San Francisco, CA - Our Local Coverage Area
We’re based in the South San Francisco area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in South San Francisco
We schedule most South San Francisco jobs within three to five business days, and we show up with a written price and a camera. There is no dispatch fee, and the estimate is free. Call (806) 606-6902 to pick a day.
Yes, an adult needs to be present during the visit. You’ll see the camera feed from the inside of your ductwork, and you’ll receive the photo record before we leave the property.
We are a licensed and insured duct cleaning and repair company, and every technician is background-checked, uniformed, and identified by name before arrival. Our license number is published on our main home page, not buried in a footer.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What South San Francisco Customers Say
"The before and after photographs of each run are the reason I used them. You cannot argue with what came out of the return."
- Marguerite O."Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M.