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.
Air Duct Cleaning Company in Mount Vista, WA
Air duct cleaning in Mount Vista, WA typically costs $350 – $650 for a whole-home system and should be scheduled every 3 – 5 years due to the area’s unique volcanic ash contamination. We’re Hollis Air Duct Cleaning, and our crews handle the specific conditions that make Mount Vista jobs different from anywhere else in the Pacific Northwest: fine Mount St. Helens tephra still working its way into return-air systems, flexible ductwork aging through unconditioned attics, and sticky ash-dust clumps that standard equipment won’t touch. Call us at (361) 326-5060 for a written estimate before any work starts.
Why Mount Vista Homes Are Different
Mount Vista sits in the direct tephra fall zone of the 1980 Mount St. Helens eruption. That event left a persistent layer of fine volcanic ash in the soil, and during dry summer winds or any ground disturbance, that ash gets drawn into return-air systems. Unlike Portland or Seattle, where duct cleaning targets mold and dust mites, Mount Vista jobs often center on extracting this abrasive, gritty material from the entire network.
The housing stock here is dominated by suburban tract homes built from the late 1990s through the 2000s. These tightly sealed flexible-duct systems run through unconditioned attics and crawlspaces, and at 15 – 25 years old, many are due for their first deep cleaning. The damp winter air condenses inside cold attic ducts, creating a microenvironment where dust and volcanic ash clump into dark, sticky deposits that restrict airflow far more than loose dust would.
Local technicians know the first dry, windy week of August brings a predictable spike in calls. Ash from the 1980 layer kicks up from exposed soil around new construction sites and pulls straight into return vents. It’s an annual event that doesn’t happen in neighboring Vancouver or Portland.
Our Main Mount Vista Services
Mount Vista homeowners call us most often for these three services, each with its own dedicated page:
Air Duct Cleaning in Mount Vista
We clean the full supply and return network using a Rotobrush rotary brush system paired with Nikro negative-air machines. In Mount Vista, this means agitating and extracting the compacted ash-dust clumps that form in attic ducts during wet winters, then pulling them out under controlled suction so they don’t redeposit in your living space. Every job gets a written price before we start and is covered by our 365-Day Done Right Promise. Air Duct Cleaning in Mount Vista

Dryer Vent Cleaning in Mount Vista
Dryer vent cleaning here requires extra attention because the same fine ash that contaminates HVAC systems can infiltrate dryer exhaust routes, mixing with lint to form dense, abrasive blockages. We run a rotary brush through the full vent line to the exterior termination and verify airflow with a meter reading. No per-vent pricing, no add-ons at the door. Dryer Vent Cleaning in Mount Vista

Duct Sealing in Mount Vista
The flexible-duct systems common in Mount Vista’s 1990s – 2000s housing are prone to disconnected joints and crushed sections that let ash-laden air bypass the filter entirely. We seal accessible joints with mastic and apply Aeroseal where appropriate, pressurizing the system to verify results. This stops the bypass problem and improves the efficiency of any subsequent cleaning. Duct Sealing in Mount Vista

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.
Brands We Service in Mount Vista
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies for quick turnaround on Mount Vista jobs. Most common filter sizes and register boots are on the van, so we’re not driving back to a warehouse mid-job. our brands
Pricing for Air Duct Cleaning Company in Mount Vista, WA
| Service | Typical range in Mount Vista |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning (standard route) | $120 – $180 |
| Dryer vent cleaning (long run or rooftop termination) | $180 – $260 |
| Duct sealing with mastic (accessible joints) | $400 – $700 |
| Aeroseal duct sealing (whole system) | $1,200 – $2,100 |
| Register/boot replacement (each) | $45 – $85 |
| Sanitizing treatment after cleaning | $75 – $150 |
Mount Vista prices run toward the higher end when systems haven’t been cleaned in 8+ years and ash-dust clumps require extra agitation time, or when flexible ducts in tight crawlspaces need hand-positioning to access. The price we write down before work starts is the price you pay. No per-vent add-ons, no equipment charges that appear after we’re inside.
Neighborhoods We Serve in Mount Vista
We schedule Mount Vista appointments with arrival windows that respect your time, not all-day waits. Most neighborhoods are reached within our standard dispatch from the Seattle office.
- Mount Vista Heights
- Ridgefield View Estates
- Summit View
- Tanglewood
- West Prairie
Service Area – Cities Near Mount Vista
Our crews cover Mount Vista and surrounding communities across southwest Washington. We also schedule work in Vancouver, WA, Tacoma, WA, Seattle, WA, and Spokane, WA from our regional dispatch. Each job is handled by the same background-checked, uniformed technicians with the same written pricing and 365-Day Done Right Promise.
Serving Mount Vista, WA - Our Local Coverage Area
We’re based in the Mount Vista 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 Company in Mount Vista
No permit is required for standard residential duct cleaning or dryer vent cleaning in Mount Vista. Duct sealing that involves modifications to the HVAC plenum may need review if you’re in a community with an active HOA; we can document our work scope in writing for any board that asks. Call (361) 326-5060 if you need paperwork for your association.
We typically schedule Mount Vista appointments within 3 – 5 business days, with dispatch coordinated from our Seattle office. Emergency dryer vent blockages that present a fire risk get prioritized. Call (361) 326-5060 to check current openings.
Yes, we serve all of Mount Vista and the surrounding unincorporated areas of Clark County. Homes closer to the monument boundary face the same ash infiltration issues we address throughout the community, and we carry the filtration products and negative-air equipment sized for those jobs.
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 Mount Vista Customers Say
"Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O."Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W."Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q.




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