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 Diego, CA | Hollis Air Duct Cleaning
We clean and repair Trane duct systems across San Diego as an independent service company. We are not authorized, sponsored, or endorsed by Trane. What makes our Trane work different here is simple: we know how San Diego’s marine layer and salt air behave inside Trane air handlers, so we fix the actual problem instead of just running a brush through the ducts. Call (361) 326-5060 for a written quote before any work starts.
Why San Diego Residents Choose Us for Trane Service
Roy Castellanos started in the mechanical trades at Los Angeles Trade-Technical College, learning sheet metal and air conditioning fundamentals before spending years doing hands-on duct work. That background matters when you open a Trane cabinet in a 1950s Ocean Beach bungalow and find salt-crusted supply boots no manual ever mentioned. We have worked on Trane XR, XB, and XV series air handlers in coastal and inland San Diego homes long enough to know what fails where.
Every job gets a written price before we touch the system. That price does not move at the door. Our technicians are background-checked and uniformed, and our 365-Day Done Right Promise covers the work in writing for a full year. If something fails, we return at no charge. That is the Garrison Standard, and it applies to every Trane duct cleaning, coil cleaning, and our Dryer Vent Cleaning in San Diego job we do.
We are an independent Trane service provider, which means we tell you the truth about your equipment. When a Trane coil is rusted through from salt exposure, we say replacement is the better spend. When duct sealing will restore performance, we say that instead. No upsells, no guesswork.
Common Trane Air Duct Cleaning Problems We Solve in San Diego
- Salt-corroded Trane coil fins and cabinet fasteners. In beach-adjacent neighborhoods like Ocean Beach and Mission Beach, ocean air works on Trane evaporator coils year-round. Corroded fins reduce heat transfer, and rusted fasteners make the cabinet harder to open for service. We clean what is salvageable and tell you plainly when a coil is too far gone.
- Musty odors from Trane variable-speed air handlers during June gloom. Trane XV and XR variable-speed units run at low continuous fan speeds in San Diego’s mild weather. Dust and microbial film settle on the coil instead of blowing through. By May and June, that film produces the musty smell homeowners notice when the system kicks on. Coil cleaning fixes it.
- Pinhole rust and failed mastic on original Trane metal duct trunks. 1940s through 1960s coastal bungalows in North Park and Hillcrest often still have their original galvanized Trane furnace ducts. Marine-layer humidity seeps in at failed takeoffs, rusting the trunk from the inside out. We seal the joints with mastic and replace sections that are structurally gone.
- Sagging and torn Trane flex duct in inland tract homes. Carmel Valley, Mira Mesa, and Otay Ranch homes built in the 1980s through 2000s typically use builder-grade flex duct. It sags between joists, tears at collar connections, and traps dust at every joint. We repair or replace the affected runs and seal the collars so the system holds static pressure.
- Biological growth on the upstream side of Trane coils in cool garages and closets. San Diego’s May and June marine layer keeps relative humidity high enough that Trane air handlers sitting in uninsulated garages wick moisture into return ducts. We routinely find growth on the coil’s upstream face even when the filter looks clean. This is a San Diego-specific pattern inland systems rarely show.
Trane Service in San Diego: What Local Conditions Mean for Your Equipment
Here is the thing about San Diego that does not show up in a Trane manual. The May – June marine layer keeps relative humidity high enough that Trane air handlers sitting in cool garages and closets wick moisture into return ducts. We find biological growth on the upstream side of Trane coils even when the homeowner changed the filter two weeks ago. That growth pattern is tied to San Diego’s coastal humidity cycle, not the homeowner’s housekeeping. Inland Trane systems in Mira Mesa and Otay Ranch rarely show the same pattern because their air is drier and the systems cycle harder. If you live west of Interstate 5 and your Trane system smells musty in June, the coil is likely involved even if the ducts look fine. East of the 15, the more common problem is dust settling in sagging flex runs from long periods of low-speed operation. Same equipment brand, two completely different failure profiles depending on which side of the marine layer you live on.
Trane Models & Products We Service in San Diego
We work on Trane XR and XB series split systems, Trane XV and XR variable-speed air handlers, Trane ComfortLink II communicating systems, and legacy American Standard-compatible air handlers. For parts, we use OEM-equivalent Trane filters, gaskets, and flex collars where fit matters, and quality aftermarket mastic, insulation, and hardware for duct repairs. We keep common Trane filter sizes and collar parts stocked locally so San Diego jobs do not wait on a parts truck from Los Angeles. When we open a system and find the coil rusted through or the air handler failing electrically from salt exposure, we tell you straight whether cleaning and sealing will restore performance or whether replacement is the better long-term spend.
Trane Service Pricing in San Diego
| Service | Typical San Diego Range |
|---|---|
| Trane evaporator coil cleaning | $225 – $450 |
| Full duct cleaning (single Trane system) | $350 – $700 |
| Duct sealing (per system) | $450 – $950 |
| Flex duct repair or replacement (per run) | $150 – $400 |
What drives the cost is system size, access, and how much repair work the ducts need. A two-story La Jolla home with original rigid ductwork costs more than a single-story Mira Mesa tract home with accessible flex runs. Every estimate is free, written down before any work starts, and that number is the number you pay. Call (361) 326-5060 and we will set a time that works.
Serving San Diego, CA - Our Local Coverage Area
We’re based in the San Diego 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 Diego
Because the smell is usually coming from the evaporator coil, not the filter. In coastal San Diego neighborhoods like Pacific Beach, the marine layer keeps humidity high enough that microbial film forms on the upstream face of Trane coils even when the filter is clean and fresh. The fix is a proper coil cleaning with the right equipment, not another filter change. Call (361) 326-5060 for a written quote.
Yes, provided the ducts are structurally sound. We inspect the trunk and takeoffs first, then perform Air Duct Cleaning - San Diego with a negative-air machine and rotary brush system. If we find pinhole rust or failed mastic, we seal those joints before or during the cleaning. If a section is rusted through, we replace that section rather than waste your money cleaning metal that will not hold air.
Most sagging flex runs can be repaired by re-securing the supports, sealing the collar connections, and cleaning the interior. If the inner liner has torn or the insulation is saturated, replacement is the honest call. We will show you on camera what we found before we recommend either path.
Yes. The May – June marine layer keeps coastal relative humidity high for weeks at a time, and Trane air handlers in cool garages and closets wick that moisture into return ducts. We see biological growth on coil faces in Ocean Beach and Pacific Beach that we almost never see in Otay Ranch or Mira Mesa, where the air is drier and systems cycle harder.
Cleaning is the right call when the coil has surface dust, microbial film, or minor corrosion but still holds refrigerant and transfers heat. Replacement is the right call when the fins are crumbling from salt corrosion, the coil is leaking, or the cabinet is so rusted that fasteners cannot hold. We show you the coil on camera and tell you which side your system is on. Call (361) 326-5060 for an assessment.
Service Areas Near San Diego
We serve San Diego and surrounding communities across the county. If you are outside the immediate San Diego metro, we can also point you to our Trane sales & service resources or connect you with our Trane service in Dallas and Trane service in Fort Worth teams. For everything in Southern California, check our San Diego service area page.
Book Your Trane Service in San Diego Today
We operate under the Garrison Standard: arrive inside the window, price in writing, do the job by the book, leave the site clean. That is the whole job. Call (361) 326-5060 for a free estimate on Trane air duct cleaning, evaporator coil cleaning, duct sealing, or flex duct repair in San Diego.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving San Diego since 2004.