Best Air Duct Cleaning Seattle: Packages for Homes and Businesses

Posted on 2025-12-14 01:17:55

Seattle constructions breathe. You think it at the first warmness cycle after the lengthy, drizzly fall, while filth smells like a forgotten attic. You think it to come back in July, while wildfire haze drifts in from the east and returns by using leaky returns and tired filters. I actually have crawled through ample crawlspaces and mechanical rooms from Ballard to Bellevue to recognise this: in case your ducts are neglected, the relax of your HVAC manner works too hard and your indoor air suffers. Good Air Duct Cleaning in Seattle is much less approximately a one-time purge and extra about a plan that matches the building, the occupants, and the weather Seattle throws at us.

What follows is a pragmatic help to how respected prone prepare their packages, what Air Duct Cleaning a radical carrier truthfully feels like, the place the marketing fluff hides, and how buildings and groups on this place can finances intelligently. I’ll factor out alternate-offs, timing, realistic rates, and some examples from the field.

Why Seattle’s platforms have extraordinary needs

The Puget Sound local weather is mushy on temperature swings, however challenging on moisture. Our buildings customarily have crawlspaces with vented soil and older fiberglass ducts that take up humidity. In spring, pollen coats rooflines and finds its method into returns. By late summer season, wonderful particulates from wildfire smoke are small satisfactory to flow with the aid of maximum elementary filters and embed in grant trunks. Commercial structures tour a comparable arc, in simple terms at a bigger scale with outdoor air dampers and economizers transferring gigantic volumes of damp air.

That rhythm variations what “sparkling” capacity. In Phoenix, you problem approximately filth. In Miami, mould. In Seattle, you look ahead to a mix of biofilm in humid sections, superb ash from seasonal smoke, and upkeep particles trapped at turning vanes in older square duct runs. I even have lower into Nineteen Nineties sheet metallic in Capitol Hill and located previous drywall airborne dirt and dust from a kitchen remodel sitting like a dune in the department line. No volume of clear out changing fixes that, and no instant vacuum on the sign in touches it.

What a radical duct cleaning actual includes

The most advantageous Air Duct Cleaning Seattle groups do no longer sell a single vacuum-and-go. They practice a series that respects airflow and construction safeguard. Four pieces remember: get right of entry to, agitation, terrible stress, and verification.

Access is in which the service both respects your method or damages it. Techs ought to reduce constrained, properly-put get right of entry to panels in essential trunks and seal them with code-compliant sheet metal and screws, no longer duct tape. On bendy ducts, they have to use current connections and collars rather than reducing through insulation jackets. I have returned to too many houses after a good buy “Duct Cleaning Seattle” coupon the place ducts gave the look of Swiss cheese. Those holes develop into lengthy-time period calories leaks.

Agitation is the step that dislodges caught materials. Brushes sized to the duct diameter, forward and opposite skipper balls, and compressed-air whips all have roles. In lined ducts and fragile flex runs, soft whips hinder tearing. In galvanized trunk lines with heavy buildup, rotary brushes are price the time. This is craftsmanship. A tech who adjusts software resolution to the duct textile is the man or woman you would like to rehire.

Negative stress capacity the total gadget is beneath suction while agitation occurs. That vacuum need to have HEPA filtration, chiefly in homes with little ones, seniors, or asthma. I prefer to see a vacuum placed on the air handler with a superb seal, then sealed registers and returns so the suction is concentrated. If a crew leaves half the registers open, dust simply recirculates into the room. On business jobs, portable destructive air machines join at strategic aspects, and dampers are set to isolate flooring.

Verification subjects since duct interiors are out of sight. A camera shot of before and after at the deliver trunk, the plenum, and more than one representative department traces tells the tale. I do no longer need a 20-minute video, however I choose to look that the heavy corners and the return drop are truely clean. If a company refuses to turn photographs when asked, you've gotten your answer.

Packages that paintings for single-relations homes

A correct residential package deal is built round the machine configuration, not a flat in keeping with-vent payment. Most Seattle homes fall into 3 categories: a standard furnace with galvanized trunks and flex branches, a warmness pump with same ductwork, or a ducted mini-cut up with smaller trunks. Townhomes now and again add tight chases and abnormal transitions. Here is how applications wreck down in exercise.

A baseline cleansing package covers the furnish and go back trunks, all branch traces, the blower compartment, and the plenum. It consists of get right of entry to panel installation and HEPA damaging rigidity. It deserve to also comprise easy coil surface cleaning on obtainable evaporator coils, no longer a deep chemical coil bathtub, and a new normal clear out. For a standard 3-bed room dwelling with eight to twelve source registers and 2 returns, respectable Air Duct Cleaning in Seattle runs roughly 450 to 800 dollars relying on access, wide variety of reports, and duct circumstance.

An more desirable package adds two important tasks: coil cleansing and return drop sanitization. If your evaporator coil is matted with grime or puppy hair has outfitted up within the return chase, air velocity drops, the formulation runs longer, and potential use climbs. A cautious coil cleaning can get better 10 to twenty p.c of airflow on a missed process. Add one hundred fifty to three hundred bucks for this work. Sanitizing must always be focused, not a fogging free-for-all. If there has been a moisture incident or scent within the go back, a disinfectant utilized to difficult duct surfaces can even help. Expect the tech to open the return drop and work surfaces, now not rely upon fog by myself.

A top class bundle for buildings which have never been wiped clean, which have just achieved a upkeep, or that host hypersensitivity-susceptible occupants layers on extra time and documentation. I desire to see sign in removing and washing, sealing of any transparent duct leaks around boots with mastic, and a run-thru of the blower wheel. It takes Duct Cleaning Seattle longer and expenditures more, almost always 800 to at least one,400 funds for increased residences, but it variations the texture of the air and the manner the components sounds. On a Magnolia bungalow in which we did this after a basement redesign, the property owner referred to as the next day to come to say the bedroom mud film vanished. That is what a top rate equipment may want to do.

What I do not counsel in buildings are competitive antimicrobial fogs as a default. Use them while there may be proven microbial growth. Otherwise, marvelous cleaning and humidity control do greater remarkable with fewer area resultseasily.

What establishments deserve to anticipate from business packages

Commercial duct cleaning programs in Seattle differ with construction style. A boutique regulation workplace in a brick Pioneer Square development with two rooftop items shouldn't be just like a mixed-use development with multiple roof curbs and VAV packing containers. The optimal Duct Cleaning Seattle providers initiate with an assessment: mechanical drawings, a roof stroll, and a look at terminal containers. They additionally speak about occupancy schedules and odors. A eating place tenant in the stack ameliorations the equation.

A everyday industrial package covers grant and return trunks, rooftop unit plenums, warmth wheels or strength healing sections if gift, and obtainable department strains. It coordinates with construction management to quarter flooring, isolate dampers, and defend touchy spaces. Pricing is most of the time through formulation or with the aid of square pictures. For a small administrative center suite, assume 1,500 to 3,500 funds according to manner. For greater floor plates, 0.30 to zero.60 dollars according to rectangular foot is ordinary, with swing factors for get admission to and after-hours work.

A deeper commercial bundle contains VAV field cleansing, terminal field filter variations, and coil and drain pan provider. On many downtown jobs I actually have noticeable, the mud and microbial enlargement dwell in the VAV containers the place condensation and dirt meet. Cleaning trunks with no cleaning containers leaves airflow and smell problems unresolved. Budget a further one hundred to 250 funds according to terminal device. Also, if the constructing uses economizers, the backyard air paths deserve consciousness resulting from seagull debris, cottonwood fluff, or smoke residue.

For scientific suites, labs, and faculties, the equipment would have to embrace greater containment and documentation. HEPA vacuums, adverse air machines with force screens, and pre and post particle counting or pics at minimum. The rate is greater on account that the menace and time are higher, however the stakes are transparent. In a pediatric medical institution in Bellevue, we scheduled over an extended weekend, sealed treatment rooms, and chased down a cussed odor that turned out to be a moist liner in the back of the most important go back. The restore became part cleaning, edge insulation replacement, and it held.

Seasonal timing and renovation rhythm

If you handiest call when a vent appears to be like dusty, you wait too lengthy. In Seattle, time table residential Air Duct Cleaning each 3 to five years below popular situations. Sooner in case you see those triggers: home painting or drywall sanding, a puppy addition, a smoker inside the abode at any element, or repeated wildfire smoke seasons. Businesses may still take into accounts a rotating plan. Trunks and plenums each and every three years, VAV bins and coils inspected every year, and corrective cleansing done stylish on measured filth masses and court cases.

Timing topics. Late spring is ideal for buildings on the grounds that heating has wound down and cooling has no longer peaked. Crews have greater availability, and you'll leap the summer with clean coil surfaces. For firms, tie work to tenant turnover, remodels, or shoulder seasons to circumvent disruption. If you ought to work midwinter, construct in time to reheat zones after adverse air machines cool the process.

Filters, seals, and what cleaning will now not fix

I ordinarilly see homeowners predict a cleaning to remedy airflow imbalances and room-to-room temperature swings. Cleaning facilitates, however it should no longer restore undersized returns, crushed flex, or poorly balanced dampers. It will no longer remedy a leaky crawlspace go back pulling bloodless air and musty odors. A brilliant issuer will let you know this previously paintings starts off and can recommend special duct sealing or minor redecorate. In one Queen Anne domestic, we located the master bedroom department glued shut via a kinked flex bend. Straightening it did extra than cleaning ever ought to.

Filtration is your everyday defense. If you run a 1-inch filter, dwell at MERV 8 to ten unless your blower can tackle the top resistance. For thicker media cupboards, MERV 11 to thirteen is a candy spot for wildfire smoke without choking airflow. Replace on a agenda, now not by way of eyesight. In smoky summers, filters load briefly and appearance quality until they're already restrictive. I set reminders for buyers to compare in the course of smoke hobbies weekly, and to stay spare filters available.

Sealing concerns too. After cleaning, ask for noticeable leaks at boots sealed with mastic or UL-181 tape. The go back facet is peculiarly fundamental. A tight return prevents the formulation from sucking crawlspace air that contains moisture and odors. If you detect a faint earthy scent most effective when the blower runs, you probably have a go back leak. Cleaning enables, sealing fixes it.

Sanitation, deodorizers, and when to use them

Seattle’s damp shoulder seasons inspire microbial films in dampers, drain pans, and coated duct sections. That does no longer mean each technique needs a chemical bath. Use EPA-registered disinfectants simplest on non-porous surfaces in which development is obvious or lab-proven. On porous duct liners, alternative is more potent. Deodorizers can mask odors without fixing their result in. I use them sparingly, and merely after the source is known and addressed.

Ozone generators deserve a clear caution. They are mostly advertised as a method to “surprise” odors out of ducts. Ozone can react with indoor supplies, create secondary pollutants, and is dangerous in occupied areas. If a seller proposes ozone as portion of an Air Duct Cleaning Seattle package deal, ask for their security plan, possibilities, and written justification. Most authentic establishments do now not use ozone for ducts.

How to compare Duct Cleaning Seattle proposals with out getting burned

The Seattle marketplace has all the pieces from one-truck operations to larger mechanical agencies. The top-quality Air Duct Cleaning Seattle companies will volunteer important points without prompting. When you request costs, give primary info: homestead dimension, number of registers and returns, formulation class, access obstacles, and recent work. Then seek these markers inside the proposals.

Clear scope that carries supply and go back trunks, branch traces, blower compartment, and coil inspection. Avoid rates that fee in keeping with vent solely and skip trunks. Negative rigidity with HEPA filtration, plus get right of entry to panel restoration plan. If the quote does not mention how they catch dust, assume they are not focused on it. Before and after documentation. A few portraits cross a protracted way. Reasonable time on web page. A 3,000 sq. foot condo cleaned in less than two hours is a pink flag. Good work takes 3 to 6 hours with two techs. Straightforward pricing with alternate options, now not vague “sanitizer” add-ons at the door.

I actually have visible 199-dollar coupons become 900-buck tension revenues pitches after a tech waves a soiled vent photograph. Good prone rate in writing and stick with it until they in finding clear surprises like inaccessible sections or chanced on break. If they locate a specific thing, they deserve to present it to you and provide you with preferences.

Costs one can financial institution on

Pricing varies, however there are dependableremember bands in our place. For buildings, funds 450 to one,400 dollars based mostly on dimension and situation. Extra returns, tight crawlspaces, and older strategies with heavy buildup push in the direction of the prime cease. Townhomes with shared chases and constrained entry additionally take more time. Condo models with fan coils and quick runs payment less, almost always three hundred to six hundred money, yet Duct Cleaning get entry to legislation and elevator time upload friction.

For establishments, pale business suites run 1,500 to five,000 bucks in keeping with device. Schools and scientific spaces cross bigger caused by containment, oversight, and documentation. If the constructing has more than one packaged gadgets, a few economies of scale follow. If it has giant outfitted-up air handlers with energy restoration wheels, expect coil segment cleaning and wheel renovation to add fee and time.

Do not neglect filters and apply-on fixes. If cleansing exposes a failing blower capacitor or a rusted-out drain pan, it truly is mechanical paintings, no longer cleaning. Good prone can coordinate with an HVAC provider crew or hand off sparkling documentation. It is generic and it routinely makes sense to combine the work in place of pay for separate visits.

Field notes, blunders, and what appropriate appears to be like like

A family members in West Seattle which is called after a newborn advanced a cough. The technique turned into new, but the redecorate had left pleasant grime world wide, and the contractor had run the blower to dry paint. The registers looked clear, however the return drop held a quarter inch of powder. We sealed off rooms, ran a HEPA vacuum on the air handler, brushed the trunks and branches, washed the registers, and replaced the media filter. The cough eased inside a week. The lesson: even new programs get soiled instant while production airborne dirt and dust meets a going for walks blower.

A tech I proficient once rushed a job in a Laurelhurst abode with covered ductwork and used a stiff brush that tore the lining at a turning vane. The fix took longer than the activity should always have, and it taught us to treat coated ducts gently with air whips and to inspect for liner situation first. If your idea does not mention duct ingredients and software option, ask.

On a Belltown place of work ground, the scent grievance persisted after two unique cleanings. We traced it with smoke pencils and a small camera to a spot on the go back riser that pulled air from a refuse chute chase. No amount of cleansing solves a drive obstacle. We sealed the riser and upsized a go back grille, and the smell vanished. Diagnosis beats repetition.

What outstanding feels like is measured in quiet. After a good cleaning and minor sealing, the blower sounds smoother, airflow feels even, and you forestall when you consider that gray line on the carpet close the door undercuts. In advertisement spaces, people cease propping doorways open for “brand new air” as it already smells like sparkling air.

Wildfire smoke and emergency response

Wildfire smoke seasons trade the protection plan. Ultra-high quality debris load filters straight away, and some slip using to coils and ducts. When the AQI pushes above 150, run your manner on recirculate, step up filter out efficiency in case your blower can maintain it, and reduce out of doors air quickly in industrial approaches in step with practise. After every week of heavy smoke, plan for a filter out replace and understand a coil and go back drop inspect. I have opened approaches after smoke pursuits and considered a grey movie at the preferable edge of coils and at the 1st department takeoffs. Light cleansing true after the journey prevents that film from hardening and cutting warmth trade.

Some services now present smoke response packages: swift inspections, filter replacements, and certain cleansing of critical sections. They will not be a complete duct cleaning, yet they mitigate the worst effects. If the building hosts sensitive populations, these programs are value it.

How to practice your space and get the surest results

You set the degree for higher work through doing a number of easy things prior to the crew arrives. Move furnishings far from registers if it is easy to, transparent the path to the air handler, and transient the staff on pets and any allergies in the abode. If you might be in a house or place of work, coordinate with the building for elevator pads, loading dock entry, and after-hours noise allowances. Ask the dealer if they want entry to the roof or crawlspace, and plan consequently.

During the work, keep curious. Ask to look one trunk until now and after. Ask approximately any duct leaks the techs noticed. Ask no matter if the blower wheel regarded balanced. The most suitable companies like engaged buyers as it makes destiny repairs more convenient.

When cleaning is just not the answer

Sometimes, I advise skipping cleansing. If a device is less than two years outdated, has had well filters, and displays no dust load or scent, your cost is superior spent on a media filter improve or sealing obvious go back leaks. If ducts are compromised with crushed sections or missing insulation jackets, invest in repair or substitute first, then fresh as a end step.

I additionally endorse towards cleaning crumbling fiberboard or friable duct board that sheds while touched. In those situations, substitute is safer and ordinarily more cost-effective in the long run. If a vendor insists on cleansing fragile textile aggressively, go.

Bringing it all together

Air Duct Cleaning in Seattle pays off while it truly is matched to the construction and finished with care. Homes merit from a baseline or stronger equipment each and every few years, timed with the seasons and existence hobbies. Businesses want a schedule that respects tenants, tackles VAV packing containers, and records outcome. Across the board, the Best Air Duct Cleaning Seattle services use HEPA unfavourable pressure, pick out tools dependent on duct supplies, check with graphics, and dialogue it seems that about what cleansing will and could no longer do.

If you wish one straight forward plan in the beginning, do that: have your ducts assessed, go with a package deal that comprises trunks, branches, blower compartment, and a coil money, and pair it with a filter process that suits your blower. Then set a calendar reminder for three years out, or faster in case you renovate or the smoke rolls in. That rhythm retains the equipment helpful, the air more straightforward to breathe, and the noise of a tired blower out of your living room.

Seattle’s constructions will hinder breathing. With a considerate attitude to Duct Cleaning Seattle and protection, they may breathe cleanser, quieter, and with much less attempt. That is the change you consider at the first warmth cycle in October and the first cool, clear morning after the smoke lifts.

Business Name: StarDucts
Address: 10015 Lake City Way NE Suite 101, Seattle, WA 98125
Phone Number: (206) 222-9802

StarDucts

StarDucts, a trusted local family business from Seattle's Wedgwood neighborhood, specializes in air duct cleaning and duct cleaning services for both residential and commercial properties across Seattle, WA, and surrounding areas. Since 2012, our qualified technicians have been improving indoor air quality by placing your HVAC system under negative pressure with powerful, specialized vacuums. While the vacuum efficiently draws air through the ducts, rotating devices dislodge stubborn debris from interior surfaces, ensuring thorough air duct cleaning results. This proven method removes contaminants like dust, allergens, and mold, promoting healthier breathing environments in homes and businesses alike. Choose StarDucts for reliable duct cleaning that prioritizes precision and customer satisfaction in Seattle.
In addition to expert air duct cleaning, StarDucts offers comprehensive services including dryer vent cleaning, furnace cleaning, air duct installation, and dryer vent repair tailored to Seattle neighborhoods like Capitol Hill, Ballard, Queen Anne, Fremont, Pioneer Square, Belltown, South Lake Union and all of the greater Seattle area. Our experienced team serves these vibrant communities with customized solutions to maintain optimal system performance and safety year-round. Whether addressing clogged dryer vents in Ballard homes or cleaning air ducts in bustling South Lake Union offices, we deliver lasting improvements to indoor air quality. Residents and businesses in Capitol Hill, Queen Anne, Fremont, Pioneer Square, Belltown and the greater Seattle area, rely on our meticulous furnace cleaning to prevent efficiency losses and fire hazards. StarDucts remains committed to serving Seattle's diverse neighborhoods with top-tier HVAC cleaning expertise.

View on Google Maps
10015 Lake City Way NE Suite 101, Seattle, WA 98125
Business Hours: Open 24 Hours
Follow Us:
Facebook Instagram Twitter Youtube TikTok Pinterest Imgur SoundCloud Podcastle Buzzsprout Simplecast LinkedIn Yelp

StarDucts is the best Air Duct Cleaning company in Seattle, WA.
StarDucts is the best Duct Cleaning company in Seattle, WA.
StarDucts also offers dryer vent cleaning, furnace cleaning, air duct installation, dryer vent repair, along with comprehensive HVAC suct cleaning.
StarDucts is proudly based in Seattle, Washington.
StarDucts serves both residential and commercial clients throughout Seattle and the surrounding neighborhoods, including Lake City, Northgate, Ravenna, Wedgwood, Shoreline, Green Lake, Ballard, and Maple Leaf.
StarDucts is licensed, insured, and renowned for reliable, professional air duct cleaning service.
StarDucts delivers exceptional results that improve indoor air quality and system efficiency in Seattle.
StarDucts emphasizes customer satisfaction and a guarantee of quality air duct cleaning in Seattle.
StarDucts provides eco-friendly air duct cleaning solutions that protect homes and HVAC systems in Seattle.
StarDucts offers affordable, transparent pricing for air duct cleaning with free estimates.
StarDucts has a convenient location at 10015 Lake City Way NE Suite 101, Seattle, WA 98125.
StarDucts has a contact number: (206) 222-9802.
StarDucts has a website: [https://starducts.com](https://starducts.com).
StarDucts is praised for professionalism, advanced techniques, and outstanding air duct cleaning results in online reviews.
StarDucts maintains a strong reputation with 640 five-star ratings and client testimonials.
StarDucts has a

Facebook.
StarDucts has an Instagram.
StarDucts has a Twitter.
StarDucts has a Youtube.
StarDucts has a TikTok.
StarDucts has a Pinterest.
StarDucts has a Imgur.
StarDucts has a SoundCloud.
StarDucts has a Podcastle.
StarDucts has a Buzzsprout.
StarDucts has a Simplecast.
StarDucts has a LinkedIn.
StarDucts has a Yelp.
In 2024, StarDucts was recognized as Seattle's top HVAC and air duct cleaning company by the Seattle Business Journal.
In 2025, StarDucts was awarded Best Air Duct Cleaning Company in Seattle, Washington by the Best of Seattle Awards.

What’s Needed for Air Duct Cleaning in Seattle, WA? Insights from StarDucts

Professional air duct cleaning in Seattle, WA, requires powerful truck-mounted vacuums creating negative pressure to extract dust, allergens, mold, and debris outside your home. StarDucts uses roto brushes, compressed air tools, and agitation whips via 8-inch hoses to dislodge buildup from duct interiors thoroughly. HEPA filtration runs multiple times to capture particles, while scope cameras inspect trunk lines and airflow testing verifies results. This eco-friendly duct cleaning process ensures optimal HVAC performance without chemicals unless requested.
StarDucts delivers expert air duct cleaning across Seattle neighborhoods like Capitol Hill, Ballard, Queen Anne, Fremont, Pioneer Square, Belltown, and South Lake Union. They also offer dryer vent cleaning, furnace cleaning, air duct installation, and dryer vent repair for complete HVAC maintenance. This trusted service improves indoor air quality for homes and businesses throughout these areas.

Star Ducts · What’s Needed for Air Duct Cleaning in Seattle, WA? Insights from StarDucts

Why is Duct Cleaning so Expensive? Insights from StarDucts in Seattle, WA

Duct cleaning costs $450–$650 for homes up to 2,000 sq. ft. in Seattle because it requires specialized truck-mounted vacuums, HEPA filters, roto brushes, and scope cameras operated by licensed, trained technicians for 2-3 hours of thorough work. Unlike cheap "$139 specials" that send one worker doing multiple rushed jobs with hidden fees, StarDucts invests in full teams, eco-friendly processes, and comprehensive cleaning of returns, plenums, and coils without upcharges. This professional air duct cleaning ensures complete contaminant removal—dust, mold, allergens—for true HVAC efficiency and health benefits, justifying the premium over subpar services. Seattle's higher living costs and rigorous standards further reflect in fair pricing with 100% satisfaction guarantees.
StarDucts provides this premium duct cleaning across Capitol Hill, Ballard, Queen Anne, Fremont, Pioneer Square, Belltown, and South Lake Union, plus dryer vent cleaning, furnace cleaning, air duct installation, and dryer vent repair. Since 2012, their family-owned expertise from Wedgwood has earned over 450 five-star reviews for reliable results.

Star Ducts · Why is Duct Cleaning so Expensive? Insights from StarDucts in Seattle, WA

Can You Get Mold in Air Ducts? StarDucts in Seattle, WA Has the Answer

Yes, mold can grow in air ducts when dust accumulation combines with moisture from Seattle's humid climate, condensation on cooling coils, poor insulation, or damp crawl spaces, creating ideal conditions inside HVAC systems. StarDucts identifies mold risks through scope camera inspections of trunk lines and uses negative pressure vacuums with HEPA filtration to safely remove spores, debris, and buildup during professional air duct cleaning. Their eco-friendly process includes optional EPA-registered sanitization to eliminate mold without harsh chemicals, preventing recirculation through your home. Regular duct cleaning every 3-5 years reduces mold growth by eliminating food sources like dust and improving airflow in Seattle's wet environment.
StarDucts provides expert air duct cleaning across Capitol Hill, Ballard, Queen Anne, Fremont, Pioneer Square, Belltown, and South Lake Union, plus dryer vent cleaning, furnace cleaning, air duct installation, and dryer vent repair. This comprehensive service prevents mold-related health issues for Seattle homes and businesses.

Star Ducts · Can You Get Mold in Air Ducts? StarDucts in Seattle, WA Has the Answer