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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AfterTrane Air Duct Cleaning in San Francisco, CA | Morton’s Air Duct Cleaning
Air Duct Cleaning in San Francisco for an independent Trane system typically runs $450-$850 for a single-zone retrofitted system, and most homes we visit need it because decades of fog-borne dust settled into duct runs that were never designed for forced air in the first place. Paul Adeyemi leads our team, and before we start, let me show you exactly what we found and exactly what it will cost to fix it. If you own a Trane system in a Victorian or Edwardian home here, the problem usually isn’t the equipment. It’s the framing around it. Call (323) 918-4345 for an honest look at what’s happening inside your ducts.
Why San Francisco Residents Choose Us for Trane Service
Morton’s Air Duct Cleaning has spent years working inside Trane systems across San Francisco’s Victorian and Edwardian housing stock, and we’ve learned their airflow designs from the XR series to the variable-speed XV units the way you only learn something by taking it apart and putting it back together in century-old framing. We are an independent service provider with deep, hands-on Trane experience, not a manufacturer-authorized dealer, and we’re upfront about that. Paul Adeyemi grew up in Inglewood and trained at Los Angeles Trade-Technical College, where hands-on coursework in ventilation mechanics gave him the foundation he still relies on when diagnosing a starved return or a fouled coil in a Cole Valley flat. He got into duct cleaning after chasing down air quality issues in his own home when his daughter’s seasonal allergies flared, and that personal edge shows in how carefully our crew works. We also handle Trane sales & service questions when they come up, though our focus here is the ductwork and airflow side of your system.
Every San Francisco visit includes a written price before any work starts, a photo of the clean-up before the crew leaves, and shoe covers and drop cloths throughout the house. We work around nap schedules when toddlers are down the hall, and we keep our tools as quiet as the job allows. That’s the Cedarwell Care Promise, and it’s stamped on every job we do here.
Common Trane Air Duct Cleaning Problems We Solve in San Francisco
- Starved returns in retrofitted Trane air handlers. Trane air handlers shoehorned into Victorian row-house closets often got undersized returns forced into framing that predates forced air by decades. The blower pulls hard against a starved return, hot-spot drafts carry fine construction dust past the filter, and the evaporator coil gets coated unevenly. We see this constantly in the Mission and Noe Valley.
- Bio-film and mildew on Trane all-aluminum drain pans. The persistent marine layer keeps duct interiors damp year-round in the Outer Sunset and Richmond. Trane’s all-aluminum coils and their drain pans collect bio-film and mildew even when the AC hasn’t run in months. Standard cleaning intervals miss this entirely because they assume dry conditions.
- Debris-packed dead legs from abandoned floor furnaces. In the Inner Sunset and Cole Valley, floor-furnace grates and short stub duct runs beneath Victorian flats were often abandoned in place when Trane central systems went in. Those dead legs still connect to the live ductwork and act as debris traps that no other city’s duct layout produces.
- Low-velocity pockets behind sharp 90-degree bends. Trane supply runs squeezed through 2×4 partition walls force sharp bends that shear airflow. The low-velocity pockets downstream of those bends become the first place compacted pet dander and fog-borne particulates settle. You’ll notice it as one room that always smells stale no matter how often the system runs.
- Quiet debris accumulation in variable-speed XV blowers. Trane XV18 and XV20i blowers run at low continuous speeds in San Francisco’s cool climate, so debris accumulates silently along the blower wheel and cabinet floor rather than being visibly pushed out. Owners often don’t notice until static pressure climbs and the system short-cycles.
Trane Service in San Francisco: What Local Conditions Mean for Your Equipment
Here’s what makes San Francisco different from any neighboring city when it comes to Trane ductwork: the city’s famously cool, fog-driven climate meant most Victorian and Edwardian homes were originally built with floor furnaces or wall heaters rather than central ducted systems. When ductwork does exist, it was almost always retrofitted awkwardly into century-old row-house framing, creating irregular, cramped runs that accumulate debris in ways modern purpose-built systems don’t. The persistent coastal fog drives unusually high indoor moisture levels, making mold contamination inside retrofitted ductwork a genuine and city-specific risk even though summer temperatures rarely exceed 65°F. For a Trane owner in the Inner Sunset, that means an all-aluminum coil pan sitting in a damp, rarely-used duct run is quietly growing biofilm while you’re worrying about whether the heat will kick on. A homeowner on a Cole Valley block off Carl Street called us because her Trane XV18 was short-cycling and the hallway smelled musty after the fog rolled in. Our tech ran a video inspection and found the original floor-furnace stub duct beneath the front flat was still tied into the return, packed with pet dander and fog-borne grit that was choking the variable-speed blower and fouling the Trane coil pan. We sealed off the dead leg, cleaned the evaporator coil and blower, and the system dropped back to its low-stage hum within the week. That’s the kind of find a generic duct cleaning crew from San Jose or Oakland won’t recognize, because their housing stock doesn’t produce it. If you’re anywhere near San Francisco service area coverage, we’ll come take a look.
Trane Models & Products We Service in San Francisco
We work on the full range of Trane equipment found in San Francisco homes. That includes the XR series (XR14, XR16) straight-cool and heat pump condensers common in 2000s retrofits, the XV series (XV18, XV20i) variable-speed inverter systems in higher-end flats, and the S-Series and T-Series air handlers and furnaces paired with them. We also see plenty of XB series (XB13, XB14) builder-grade equipment from the 1990s-2000s retrofits in the Richmond and Sunset. For Trane airflow components like blower wheels, coil fins, filter racks, and flex or metal duct sections, we use genuine OEM parts when the size or fit is Trane-specific, and high-quality aftermarket for generic ducting and sealing materials where it meets or exceeds spec. Our van carries a working stock of common Trane-compatible duct fittings, sealing tapes, and coil cleaning solutions so we don’t have to leave a San Francisco job half-done because a supply house across the bay is closed.
Trane Service Pricing in San Francisco
Full Trane duct cleaning for a single-zone retrofitted system in San Francisco generally runs $450-$850. Multi-zone systems in larger Edwardian homes or those with significant dead-leg removal and coil cleaning can run $850-$1,400. What drives the cost here more than anything is access: systems stuffed into Victorian closet framing, crawlspace duct runs with sharp bends, and dead legs that need sealing off all take longer than the straight runs you’d find in a modern suburban tract home. Every estimate includes a written price before any work starts, so you’ll know exactly what the job costs before a single drop cloth goes down. For an exact quote on your Trane system, call (323) 918-4345. Estimates are free and take about 20 minutes over the phone.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the 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 - Trane Air Duct Cleaning in San Francisco
Yes, it often is. The Outer Sunset sits in the deepest fog belt in San Francisco, where summer marine layer can persist all day for weeks. Your XV18’s variable-speed blower is designed to run at low, continuous speeds for comfort and efficiency, but in a damp duct system, that means it’s recirculating humid, fog-saturated air through accumulated dust and debris. The result is a house that feels sticky and smells a little like a wet wool coat even when the system is working as designed. We’d inspect your duct runs for moisture build-up, biofilm on the Trane all-aluminum coil pan, and debris loading around the blower wheel. Call (323) 918-4345 if you notice a persistent damp smell after the fog rolls in.
Yes, and this is one of the situations where our Rotobrush equipment makes a real difference. The compact heads and flexible shafts let us work through narrow access points that would defeat larger, heavier gear. We’ve cleaned systems where the entire air handler was accessible only through a 14-inch closet return grille. We’ll also protect the floors, walls, and any nearby furniture with drop cloths and shoe covers before we start, and the live person who answers our phone can talk through what to expect given your specific layout.
Most San Francisco Trane owners do well with a duct cleaning every 2-3 years, versus the 3-5 year interval common in drier climates like Sacramento or the East Bay hills. The moisture from the marine layer means dust and pet dander inside the ducts stay slightly tacky and accumulate faster, particularly in the Outer Sunset, Richmond, and other fog-heavy neighborhoods. If you have pets or you’ve done remodeling work recently, even a 2-year interval can be conservative. It’s about what’s actually inside, not a fixed calendar, which is why every job we do starts with a video inspection so you can see it for yourself.
No, duct cleaning by an independent service provider does not void your Trane equipment warranty. Trane’s warranty covers the equipment itself, not the ductwork, and cleaning the airflow path is standard maintenance. We use duct-safe cleaning methods and equipment from Rotobrush and Nikro that don’t damage the interior of metal or flex ducting. If you’re ever unsure, we’re happy to point you to the relevant section in your Trane owner’s documentation before any work starts.
Those 1920s stucco homes in the Richmond have their own quirks. The walls are often lathe-and-plaster over wood framing, so supply runs tend to be tighter and more sharply bent than newer construction. We’ll take extra care sealing any access points we need to open, and the drop cloths and shoe covers stay in place from entry to exit. The process usually takes 2-4 hours for a single-zone system, and you’ll get a written price confirmation before any work begins. Call (323) 918-4345 if you want to walk through your specific floor plan before we schedule anything.
Service Areas Near San Francisco
We handle Trane duct cleaning across the San Francisco peninsula and select surrounding areas, including Daly City, South San Francisco, San Bruno, Pacifica, and Oakland. While our primary work focuses on the city’s Victorian and Edwardian housing stock, we also serve our Trane service in Seattle and Trane service in Nashville-Davidson customers through trusted local teams. If you’re outside San Francisco proper, call and we’ll confirm whether your address is in our service area.
Book Your Trane Service in San Francisco Today
If your Trane system is acting like it’s working harder than it should, or if a musty smell returns every time the fog settles in, give us a call. Paul and the team will walk you through what’s likely happening and what a cleaning would cost before you decide anything. Call (323) 918-4345 for a free estimate.
Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving San Francisco since 2005.