Fast, Reliable HVAC Cleaning Across Aloha
HVAC cleaning in Aloha typically runs $280-$580 for a full system cleaning, with most jobs completed in a single visit. Bellows Air Duct & Vent Co. has been driving out to Aloha since 1984, and we know the 97003 ZIP well enough to spot trouble before we unload the van. We’re familiar with the split-level ranches off 198th Avenue, the ranch-style tracts near the old Tualatin Valley Highway corridor, and the fog that settles into this valley-floor community from October straight through April. Call (844) 685-6342 for a free estimate. We’ll be there when we say.
Why Bellows Air Duct & Vent Co. Is Aloha’s Preferred HVAC Cleaning Company
We’ve cleaned ductwork in Aloha homes for over four decades. That means we’ve seen what the Tualatin Valley’s damp winters do to fiberglass-lined ducts installed in 1978, and we know which crawl-space runs turn into mold reservoirs by February. Our HVAC Cleaning team doesn’t guess. We camera-inspect every system before a single brush turns, so you see what we see.
Our technicians are background-checked, uniformed, and equipped with Rotobrush and Nikro systems. Calls to our office are answered by a live person, 24 hours a day. Not a voicemail. Not an app. A real person who can dispatch a crew to Aloha today if needed.
Our 90-Day Done Right Promise applies to every job in Aloha. If the work isn’t right, we return at no charge. No paperwork. No arguing. That’s been our standard since 1984, and it’s not changing.
Our HVAC Cleaning Services in Aloha
Evaporator Coil Cleaning
The evaporator coil in your Aloha home works harder than it should. Valley fog keeps indoor humidity elevated for months, and that moisture coats the coil in a biofilm that reduces airflow and breeds mold. A typical evaporator coil cleaning in Aloha runs $180-$320. We access the coil, remove the buildup, and verify the results with our camera. Most Aloha homeowners notice stronger airflow and less musty odor within a day.

Coil Treatment
After cleaning, we apply an EPA-registered antimicrobial treatment to the coil and surrounding surfaces. In Aloha’s damp climate, this step matters. The Tualatin Valley’s persistent winter humidity means mold spores resettle quickly on untreated surfaces. Our coil treatment creates a hostile environment for regrowth without damaging the aluminum fins. This add-on typically runs $85-$145 when bundled with a full cleaning. For homes with a history of mold, we also install UV-C air purifiers in the air handler.

Air Handler Cleaning
The air handler is the heart of your forced-air system, and in Aloha’s 1970s tract homes, it’s often been neglected for 40-plus years. We disassemble and clean the blower assembly, housing, and return plenum. A full air handler cleaning in Aloha typically costs $240-$420 depending on access and contamination level. We check the drain pan for standing water, a common issue in valley homes where humidity overwhelms the condensate line.

Blower Cleaning
The blower wheel moves every cubic foot of air through your Aloha home. When dust and pollen from western Washington County’s grass seed fields cake onto the blades, efficiency drops and noise increases. Blower cleaning alone runs $150-$260 in Aloha. We remove the assembly, clean it off-site with compressed air and soft brushes, and balance it before reinstalling.

Condenser Cleaning
Your outdoor condenser faces a different enemy: the fine pollen and dust that blow across the Tualatin Valley each spring. We clean the coils, straighten fins, and verify refrigerant levels. Condenser cleaning in Aloha typically runs $120-$200. We recommend this service in late March, before the heavy grass-seed pollen arrives.

Heat Exchanger Cleaning
For Aloha homes with gas furnaces, the heat exchanger demands careful inspection. We camera-inspect for cracks and clean the surfaces to improve combustion efficiency. This service runs $200-$350 and includes a written condition report. Given the age of many Aloha heating systems, we flag any safety concerns immediately.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Aloha
We clean and service equipment from every major manufacturer, and we stock common parts for faster turnaround on Aloha calls. Our trucks carry Rotobrush agitation systems and Nikro HEPA vacuums, the same brands serious HVAC contractors specify. For coil treatment and air quality solutions, we use Abatement Technologies products, including EPA-registered antimicrobials and UV-C systems. We don’t show up with hardware-store tools and hope for the best. We bring what the job actually requires.
Common HVAC Cleaning Problems We See in Aloha Homes
- Original fiberglass-lined ductwork traps moisture and grows mold in Aloha’s foggy winters. The 1970s-80s tract housing that defines Aloha was built with fiberglass-lined sheet-metal ducts to minimal standards. That fiberglass acts like a sponge. By February, we regularly find black mold colonies an inch thick on the interior lining.
- Return-air intakes pull heavy grass-seed pollen from surrounding farmland into uncleaned ducts each spring. Western Washington County produces a significant share of the nation’s grass seed. When the wind blows from the west in May and June, that pollen loads directly into Aloha return vents. We’ve pulled handfuls of compacted pollen from filters that haven’t been changed in two years.
- Duct runs through unheated crawl spaces on split-level homes stay cold and damp, becoming permanent mold zones. This is the worst scenario we encounter in 97003. The downhill side of split-level ranches, especially east of 198th Avenue near the Beaverton boundary, has ductwork that passes through crawl spaces at 45 degrees and 90% humidity all winter. Nothing dries out. Nothing improves without professional intervention.
- Multiple owners and deferred maintenance mean many Aloha duct systems haven’t been touched since installation. Because Aloha has historically been an affordable entry point into the Portland metro, these homes have cycled through owners and rentals. We’ve met longtime residents who didn’t know their ducts could be cleaned.
Pricing for HVAC Cleaning in Aloha, OR
| Service | Typical Range in Aloha |
|---|---|
| Full HVAC system cleaning (ducts + air handler) | $280-$580 |
| Evaporator coil cleaning | $180-$320 |
| Air handler cleaning | $240-$420 |
| Blower cleaning | $150-$260 |
| Condenser cleaning | $120-$200 |
| Heat exchanger cleaning + inspection | $200-$350 |
| Coil treatment (antimicrobial) | $85-$145 |
| UV-C air purifier installation | $380-$650 |
What moves the price? Accessibility of the air handler, severity of contamination, and whether the home has the original fiberglass-lined ductwork common in Aloha’s tract housing. We disclose the full price before we start. The number on the phone is the number on the invoice. No bait coupons. No price changes at the door. We also offer a permanent 5% Senior and Veteran discount, and our $89 Seasonal Tune-Up can identify whether you need full cleaning before committing to the larger job. Call (844) 685-6342 for a free estimate.
We Also Serve Cities Near Aloha
Our service area covers the full Tualatin Valley. We regularly clean HVAC systems in Aloha and the surrounding communities of Rockcreek, Bethany, Cedar Mill, and Oak Hills. The same valley fog and aging tract housing patterns show up across these neighborhoods, and we bring the same equipment and standards to every call.
Serving Aloha, OR - Our Local Coverage Area
We’re based in the Aloha 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 - HVAC Cleaning in Aloha
The downhill-side duct runs in split-level ranches pass through unheated crawl spaces that stay at ground temperature all winter. In Aloha, that means 45-degree, fog-saturated air surrounding warm supply ducts. Condensation forms continuously. The fiberglass lining soaks it up. Mold follows. We see the thickest colonies in homes east of 198th Avenue near the Beaverton boundary, where the slope is steepest and the crawl spaces are deepest. Call (844) 685-6342 if you smell musty air from your vents - we’ll camera-inspect and show you exactly what’s growing.
Every 3-5 years for most Aloha homes, and every 2-3 years if you have the original fiberglass-lined ductwork or anyone with allergies or asthma in the household. The Tualatin Valley’s prolonged winter humidity means mold establishes faster here than in drier parts of Oregon. We cleaned a split-level ranch off 198th Avenue near the Beaverton boundary where the downhill crawl-space duct run had black mold colonies three inches thick. Using our Rotobrush system with EPA-registered antimicrobial coil treatment, we cleared the biofilm and installed a UV-C air purifier to prevent regrowth. That homeowner now schedules every two years. Call (844) 685-6342 to set your interval.
Yes, and it’s critical that you do before the lining degrades further. Our Rotobrush system agitates the fiberglass surface without tearing it, while our Nikro HEPA vacuum captures dislodged debris at the source. We then apply antimicrobial treatment to slow regrowth. In Aloha’s 1970s-80s housing stock, we’ve restored ductwork that homeowners assumed needed full replacement. Camera verification proves the result. Call (844) 685-6342 for an inspection - estimates are free.
No. Spring warmth does not dry out ductwork that’s embedded in a damp crawl space or coated in active mold. What spring does bring is the grass-seed pollen load from western Washington County farmland, which enters through return-air intakes and lands on the existing mold colonies, creating a combined allergen reservoir. The only solution is professional cleaning and, in many Aloha homes, a UV-C purifier to suppress regrowth. Call (844) 685-6342 before pollen season peaks.
Yes. We apply an EPA-registered antimicrobial coil treatment after every evaporator coil cleaning, and we strongly recommend it for Aloha homes given the valley’s humidity profile. The treatment costs $85-$145 when bundled with cleaning, and it creates a surface environment that resists mold resettlement. For chronic cases, we install UV-C lamps in the air handler. Both are standard offerings from our HVAC Cleaning team. Call (844) 685-6342 to discuss which option fits your system.
Ready to see what’s inside your ducts? Call Bellows Air Duct & Vent Co. at (844) 685-6342 for a free estimate in Aloha. We’ll camera-inspect your system, show you the results, and give you one honest price before we start. Done right, and backed in writing for 90 days.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Aloha since 1984.