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.
Trane Air Duct Cleaning in San Dimas, CA
We provide independent Trane air duct cleaning and repair across San Dimas, from the foothill edges to the flatter tracts near downtown. The difference here is the Santa Ana winds: fine mountain dust and ash work their way into return-air plenums and settle on Trane evaporator coils faster than most homeowners expect. If your Trane system has been running harder than it should, the ductwork is usually part of the story. Call (833) 589-9571 for a free estimate.

Why San Dimas Residents Choose Us for Trane Service
We have spent years servicing Trane residential air handlers and ducted systems across the San Gabriel Valley, from XR series straight-AC setups to variable-speed XV units. We know how Trane’s cabinet and coil designs interact with local ductwork, so we diagnose airflow problems at the source rather than guessing. Barry Walsh, our owner, trained in HVAC and mechanical systems at Mt. San Antonio College in Walnut, and he has worked in this trade for more than a decade. He started Duct Cleaning Pomona in 2015 because he got tired of watching crews blow air through ducts and call it clean. Our Rotobrush contact-cleaning system scrubs the duct walls directly, and our Nikro HEPA negative-air machines pull contaminants out instead of recirculating them. If you live in San Dimas and want a Trane system cleaned properly, we are the crew that explains what we are doing and why.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Common Trane Air Duct Cleaning Problems We Solve in San Dimas
- Return-air plenum gaskets dry-rotted by Santa Ana dust. Trane air handlers use gaskets at the return plenum connection, and in San Dimas those gaskets see a lot of fine grit each fall. Once they crack, wind-driven dust and ash pull straight into the blower wheel and evaporator coil face. We clean the debris and replace the gasket so the return path seals tight again.
- Original galvanized supply trunk transitions leaking at mastic joints. Many 1960s and 1980s San Dimas tract homes still run original sheet-metal ducts. The mastic seals dry out, joints separate, and a Trane system loses static pressure, which means longer run times in the summer heat. We find those leaks, clean the ducts, and reseal the transitions.
- Trane all-aluminum evaporator coils caked with fine foothill grit. After a windy fall season, the coil fins collect a layer of dust that insulates them and reduces capacity. A Trane coil can be cleaned without damage, but it takes a careful hand and the right process, not a pressure washer.
- Flex duct runs sagging or crimped in attic installations. Ranch-style and two-story San Dimas homes often have flex ducts connected to Trane plenums in the attic. Heat, age, and the occasional rodent cause sags and crimps that choke airflow. The air handler overheats or short-cycles. We identify the bad runs and repair or replace them as needed.
- Blower wheels loaded with ash and dust after fall wind events. The blower wheel is where the dirt shows up first. When it is caked, the system pushes less air and the motor works harder. Cleaning the wheel is part of every full duct cleaning we do on Trane systems in San Dimas.
Trane Service in San Dimas: What Local Conditions Mean for Your Equipment
San Dimas sits at the base of the San Gabriel Mountains, and every fall the dry Santa Ana winds funnel through the valley. That wind carries fine mountain dust and, in recent fire seasons, ash. Technicians who work this area learn to check return-air plenums near garages and attic vents for dust intrusion, because that is exactly where the grit settles. On a ranch-style home off San Dimas Avenue near a foothill wash, we pulled a Trane XR14 air handler and found the return plenum gasket brittle and the blower wheel caked with ash and grit from the fall winds. We cleaned the evaporator coil, sealed the trunk transitions with fresh mastic, and replaced the plenum gasket. The homeowner reported better airflow and shorter run times within a week. That pattern is common here, and a coastal-basin crew rarely sees it. If your Trane system has been running in San Dimas through a few wind seasons, the ductwork has been collecting everything the Santa Anas pushed through it.
Trane Models & Products We Service in San Dimas
We work on Trane XR series air conditioners and matching air handlers, XB series builder-grade systems common in 1990s San Dimas tracts, XV variable-speed air handlers and furnaces, and S-series and T-series thermostats paired with older ducted systems. We also service the ductwork those units breathe through. When a part needs replacing, we use Trane OEM filters, gaskets, and blower components when they are available and price-competitive. For duct sealing and insulation, we use quality aftermarket equivalents where OEM does not apply. And we give an honest repair-versus-replace call on older Trane coils and air handlers. If the cabinet is sound and the coil is cleanable, repair usually beats replacement.
See the difference
Before
After
Before
After
Before
AfterTrane Service Pricing in San Dimas
What you pay depends on the scope of work, not a per-vent gimmick. Here are the typical ranges we quote in San Dimas:
- Air duct cleaning (whole system): $450 to $950 typical, depending on the number of returns, supply runs, and accessibility.
- Evaporator coil cleaning (Trane, in place): $250 to $500 typical, added to a duct cleaning or quoted separately.
- Return duct cleaning (single return plenum and trunk): $150 to $300 typical.
- Duct sealing (mastic, per transition or plenum joint): $40 to $90 per joint typical, depending on access.
- Dryer vent cleaning (dedicated fire-prevention service): $120 to $220 typical.
The written estimate sets the final price before we start. The estimate is free. Call (833) 589-9571 and we will come out, look at your system, and tell you exactly what it needs.
Serving San Dimas, CA – Our Local Coverage Area
We serve San Dimas and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Trane Air Duct Cleaning in San Dimas
Because the return-air plenum gaskets on Trane air handlers dry out and crack, and every fall the winds push fine mountain dust and ash straight into that gap. The blower wheel and evaporator coil catch most of it. We check those gaskets on every Trane air handler we service in San Dimas, and if yours are shot, we replace them as part of the job.
Yes, and we do it regularly. The key is the right cleaning agent and the right pressure, applied by a technician who knows the coil’s fin spacing. Used properly, a chemical cleaner breaks down the bonded grit without bending fins. If the coil is badly caked from several Santa Ana seasons, we may recommend removing it for a deeper clean. Call (833) 589-9571 and we will tell you what your coil actually needs.
In most cases, yes. Original galvanized ducts from that era lose significant air at the mastic joints, and a Trane XB13 running on a hot San Dimas summer day needs every bit of static pressure it can get. Sealing those transitions is cheaper than replacing them and usually pays for itself in shorter run times. If the metal itself is rusted through or collapsed, we will tell you honestly and quote the repair rather than patching a lost cause.
We use Trane OEM filters, gaskets, and blower components when they are available and price-competitive. For duct sealing, mastic, and insulation, we use quality aftermarket products because that is where the performance lives, not the brand label. We are clean about this: if a part is OEM, we tell you. If it is a quality aftermarket equivalent, we tell you that too.
Most San Dimas homes need a full duct cleaning every three to five years, but houses backing onto foothill washes or exposed to heavy Santa Ana dust may need it more often. Post-renovation dust and any sign of rodent activity are reasons to do it sooner. If you are not sure, call (833) 589-9571 and we will help you figure out whether your system is due.
Service Areas Near San Dimas
We work throughout the eastern San Gabriel Valley and the foothill communities. Beyond San Dimas itself, we regularly serve Pomona, Rancho Cucamonga, Chino, Chino Hills, Diamond Bar, and Upland. If you are in any of these areas and your Trane ductwork needs attention, the same team and the same equipment come to you.
Book Your Trane Service in San Dimas Today
If your Trane system has been running through Santa Ana seasons without a proper duct cleaning, now is the time to fix that. The estimate is free, and the price is set per job by the written estimate before we start. Call (833) 589-9571. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by Barry Walsh, Owner at Duct Cleaning Pomona, serving San Dimas since 2015.