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.
Fast, Reliable Air Duct Cleaning Across Maltby
Air duct cleaning in Maltby typically runs $350 – $650 for a full residential system, with most jobs completed in a single visit. We dispatch crews from our Seattle office and serve Maltby properties directly, bringing rotary brush systems and negative-air machines designed for the rural dust loads, wood-stove ash, and agricultural particulate that standard suburban cleaning won’t address. Call (361) 326-5060 for a written estimate before any work starts.
We’ve been cleaning ducts in unincorporated Snohomish County long enough to know that a Maltby farmhouse off Paradise Lake Road faces different air-quality challenges than a split-level in Bothell. The nursery operations, unpaved driveways, and wood heat that define rural life here also define what collects in your ducts. Our Air Duct Cleaning team arrives in uniform, background-checked, and equipped for the job your specific property demands.
Why Hollis Air Duct Cleaning Is Maltby’s Preferred Air Duct Cleaning Company
Hollis Air Duct Cleaning, founded in 2004 as part of the Garrison Partners family, operates under The Garrison Standard: written prices, written guarantees, and technicians who arrive inside the quoted window. In Maltby, where many homes sit on acreage with long driveways and outbuilding systems, reliability means showing up when we said we would, not leaving you watching for a van that might appear by dusk.
Our 365-Day Done Right Promise covers every job in writing. If the work fails within a year, we return and make it right at no charge, including a free second visit. That’s not a verbal assurance; it’s printed on your invoice.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule a Maltby appointment.
We know the local roads, the properties along SR-522, the manufactured homes near the Maltby Cafe, and the older farmhouses scattered toward Cathcart. Dispatch coordinates from our Seattle office, but crews serve Maltby directly with equipment sized for rural duct layouts.
Commercial Air Duct Cleaning in Maltby
Commercial Air Duct Cleaning in Maltby addresses the HVAC systems of nursery greenhouses, agricultural processing buildings, small commercial kitchens, and multi-unit properties that face particulate loads suburban commercial spaces rarely encounter. A typical commercial duct cleaning in Maltby runs $800 – $2,500 depending on system size, accessibility, and contamination level, with written pricing provided before any work begins.
Greenhouse and Agricultural Buildings
Nursery operations near Maltby push pollen, soil dust, and organic matter through outdoor air intakes at volumes that clog filters and coat duct interiors. We use Nikro negative-air machines to contain debris during cleaning, protecting plants and workers from reintroduced particulate.
Multi-Unit and Mixed-Use Properties
Commercial duct systems in converted farm buildings or modular additions often lack original documentation. Our video inspection maps the layout before cleaning begins, identifying damp zones where Maltby’s wet shoulder season has encouraged mold growth.
Air Duct Cleaning Services in Maltby
Air Duct Cleaning Services in Maltby cover the full range of residential and light commercial HVAC systems found in this unincorporated rural community, from standard forced-air furnaces to propane systems, heat pumps, and wood-stove-augmented setups. A typical residential full-system cleaning in Maltby runs $350 – $650, with supply-only or return-only cleaning at $200 – $400 depending on duct complexity and contamination level.
Full System Cleaning with Video Inspection
We clean supply ducts, return ducts, registers, and the air handler, then verify with camera inspection. In Maltby’s owner-built homes with piecemeal additions, this verification matters; undocumented duct runs can harbor blockages or moisture damage no one knew existed.

Dryer Vent and Duct Sealing Add-Ons
Many Maltby properties have dryer vents running through crawlspaces or outbuildings where lint accumulates in extended pathways. We clean these as a separate service and can seal duct leaks with mastic to prevent conditioned air loss in poorly insulated rural structures.

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.
Trusted Brands We Service in Maltby
Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation, Nikro negative-air machines for containment, and filtration products from Honeywell and Aprilaire. We stock filters and components for common Maltby systems, including humidifier pads and media filters for whole-house units that run on well water. Parts availability means faster turnaround when a cleaning reveals a component that needs replacement, not just a homeowner waiting days for a specialty order.
Common Air Duct Cleaning Problems We See in Maltby Homes
- Creosote-tinged ash in return ducts. Wood stoves and pellet stoves common in Maltby properties deposit fine ash that standard vacuum cleaning won’t dislodge. Without rotary agitation under negative pressure, this film remains and recirculates.
- Mineral dust from well-water humidifiers. Homes on private wells running whole-house humidifiers add calcium and magnesium deposits to duct interiors. This white, cement-like buildup restricts airflow and stresses blower motors.
- Mold and mildew in damp shoulder-season systems. Maltby’s wet winters and long damp springs create conditions for microbial growth in poorly insulated duct runs, especially through crawlspaces and attics in older farmhouses.
- Agricultural particulate loading outdoor intakes. Nursery greenhouses and farming operations surrounding Maltby push seasonal pollen and field dust into air handlers, clogging filters faster than suburban environments and coating coil fins.
Pricing for Air Duct Cleaning in Maltby, WA
Most full residential duct cleanings in Maltby fall between $350 and $650. Supply-only or return-only cleaning runs $200 – $400. Commercial systems start around $800 and scale to $2,500 for larger agricultural or multi-unit properties. Dryer vent cleaning is typically $150 – $300 when performed with duct cleaning, $200 – $350 as a standalone service.
What moves the price: system size, number of registers, accessibility of duct runs (crawlspace work costs more than basement access), contamination level, and whether video inspection or duct sealing is added. We provide one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door. You’ll see before-and-after photos of your own ducts. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Maltby
Hollis crews serve Seattle, Spokane, Tacoma, and Vancouver with the same written pricing and 365-Day Done Right Promise. Each location operates independently under The Garrison Standard, with local knowledge of climate, housing stock, and the specific contaminants that regional conditions introduce to duct systems.
Serving Maltby, WA - Our Local Coverage Area
We’re based in the Maltby 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 in Maltby
Every 2 – 3 years for homes with wood or pellet stoves, versus the 3 – 5 year interval typical for suburban gas-only systems. The creosote-tinged ash and fine particulate from wood heat build faster than standard dust, and Maltby’s agricultural surroundings add seasonal pollen and field dust to the load. Call (361) 326-5060 to schedule an inspection and we’ll tell you where your system stands.
Yes, and this is a specific focus of our Maltby work. Well-water humidifiers deposit mineral scale that standard cleaning misses; we use rotary agitation to break this buildup loose and HEPA-filtered negative-air collection to remove it. We also inspect and clean blower motors, which often cake with mineral dust in these systems. Call (361) 326-5060 for an exact quote.
Yes. Many Maltby properties have owner-built additions, shop conversions, or guest quarters with ductwork extending through crawlspaces or attics. We video-inspect these runs first, since they’re rarely documented, then clean with equipment sized for the access constraints. Call (361) 326-5060 to describe your layout and we’ll confirm the approach.
Suburban crews often use truck-mounted vacuums without mechanical agitation, which fails to remove the creosote ash, mineral scale, and agricultural particulate that define Maltby duct contamination. We bring rotary brush systems, negative-air containment, and HEPA filtration sized for rural debris loads, plus technicians trained to recognize the specific failure modes of wood-stove and well-water systems. Call (361) 326-5060 to discuss what your property needs.
Dryer vent cleaning is a separate service, though we often perform both on the same visit. In Maltby, where dryer vents may run through crawlspaces or outbuildings with extended pathways, lint accumulation poses a real fire risk near propane furnaces and wood stoves. We recommend inspecting the full lint pathway, not just the exterior vent hood. Call (361) 326-5060 to add dryer vent cleaning to your appointment.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Maltby since 2004.




Before
After
Before
After
Before
After