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.
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AfterFast, Reliable Duct Sealing Across Edgewood
We seal ductwork in Edgewood homes from the post-WWII duplexes near Aberdeen Proving Ground to the subdivisions off Meridian Ave E and the ranches along Route 40. Our crews drive the local roads daily, and scheduling is coordinated from our Seattle office with dispatch directly to Edgewood. Most calls get a written estimate within a day or two, not a week out. Call us at (361) 326-5060.
Edgewood’s location matters to the work. The humid tidal air rolling off the Bush River keeps ductwork here damp enough that microbial growth and mildew take hold in the runs long before they do in inland Pierce County, and much of the town’s post-WWII military housing still runs original galvanized or early flex duct that traps that moisture against bare metal. Sealing ducts here without addressing that moisture first is a waste of money. We don’t do it.
Why Hollis Air Duct Cleaning Is Edgewood’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Edgewood customers know the difference between a crew that prices in writing and one that doesn’t. Our 365-Day Done Right Promise covers every duct sealing job in writing: if the seal fails or the musty smell returns within a year, we come back and make it right at no charge, including a free second visit.
Our technicians are background-checked and uniformed. You know who is walking into your home before they arrive. Phones are answered by a live person 24 hours a day, 7 days a week, no voicemail loops, no callback queues.
We pulled a supply run in one of the old post-WWII duplexes off Meridian Ave E and found nesting material, acorns, and rodent droppings packed against a collapsed section of early flex duct. The homeowner thought a fogging ‘sanitiser’ had handled it, but only source removal under negative pressure cleared the line. After we sealed the failed joints and reinsulated the run, static pressure at the air handler dropped and the musty smell in the back bedroom cleared.
That’s the standard we hold to on every Duct Sealing job in Edgewood.
HVAC Duct Sealing in Edgewood
HVAC Duct Sealing in Edgewood means closing the gaps, seams, and failed joints in your supply and return runs so the air you’ve already paid to heat or cool actually reaches the rooms it’s supposed to. In Edgewood’s humid climate, unsealed ducts do more than leak conditioned air into your attic or crawl space. They pull in the damp, mildew-laden air from outside, especially in homes near the Bush River where relative humidity stays high year-round. A typical HVAC duct sealing job in Edgewood runs $450 – $850 for a single system, depending on how much of the duct network is accessible and how many joints have failed.
When Sealing Makes Sense
Call us when your energy bills climb without explanation, when rooms stay cold in winter or hot in summer despite the blower running, or when you feel weak airflow at registers farthest from the air handler. These are the signs of pressure loss from leaks, not a failing furnace.
What the Job Actually Involves
We pressurize the system and use smoke or digital manometers to locate leaks. Then we seal with mastic or metal-backed tape rated for ductwork, not the hardware-store foil tape that peels in Edgewood’s humidity. We reinsulate where insulation has degraded. You get before-and-after photos of your own ducts.
Duct Repair in Edgewood
Duct Repair in Edgewood addresses the physical damage that sealing alone won’t fix: collapsed flex runs, rodent-chewed galvanized sections, rusted-out plenums, and disconnected trunks. In Edgewood’s older military housing, we regularly find galvanized runs with seams rusted through from decades of trapped condensation, or flex duct flattened by storage in attics where homeowners didn’t know it was there. A typical duct repair in Edgewood runs $280 – $650 for section replacement, with full trunk replacements on larger homes reaching $900 – $1,400.
Rodent Damage and Section Replacement
Technicians frequently find acorns, nesting material, and rodent droppings in duct runs of older Edgewood homes, especially those backing onto the wooded edges near Aberdeen Proving Ground. Sealing over that damage just traps the contamination. We remove the fouled section, HEPA-vacuum the line, and install new duct with proper supports.
Galvanized Run Restoration
Original galvanized duct in Edgewood’s post-WWII stock often has corroded seams and gaps at register boots. We cut out the failed portion and transition to modern flex or sheet metal, sealed and insulated to current standards. The static pressure improvement is immediate and measurable.
Trusted Brands We Service in Edgewood
We carry professional-grade equipment and materials from Nikro, Honeywell, and Aprilaire on every Edgewood job. Our Nikro negative-air machines maintain containment during source removal. Honeywell and Aprilaire filtration products are available for homeowners who want to upgrade after sealing reduces the load on their HVAC system. We stock common duct diameters, register boots, and mastic compounds locally, so most Edgewood repairs don’t wait on parts. If your system uses Abatement Technologies HEPA gear or Guardsman filtration, we service those too.
Common Duct Sealing Problems We See in Edgewood Homes
- Sealing over wet, microbially fouled interiors. Contractors near the Bush River sometimes seal ducts that still harbor mildew from tidal humidity, trapping moisture inside where sealant peels within months. We remove the source first, then seal dry runs.
- Fogging ‘sanitiser’ upsells without source removal. A chemical fog gets sold as a fix for musty Edgewood homes, but without HEPA filtration, camera inspection, or agitation tools, it doesn’t reach growth deep in supply and return ducts. We don’t sell fogging as a substitute for physical cleaning.
- Sealing damaged galvanized without section repair. Older military-era housing has rodent-chewed seams and gaps at registers. Sealing around the damage just reroutes air and leaves the leak in place. We replace the damaged section, then seal.
- Ignoring return-side leaks that pull in crawl space air. In Edgewood’s damp climate, return leaks draw humid, musty air from crawl spaces and wall cavities. Sealing only the supply side misses half the problem. We test and seal both sides of the system.
Pricing for Duct Sealing in Edgewood, WA
A typical duct sealing job in Edgewood runs $450 – $850 for a single residential system. Duct repair with section replacement runs $280 – $650, and full trunk replacement on larger homes reaches $900 – $1,400. What moves the price: how much duct is accessible (attic vs. finished basement), how many joints have failed, whether we need to remove rodent-damaged sections first, and if the plenum or air handler connection needs resealing.
We give one flat price per system, agreed in writing before any work starts. No per-vent pricing, no add-ons at the door. You’ll see before-and-after photos of your own ducts. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Edgewood
Our crews work throughout the region, including Edgewood and nearby Seattle, Spokane, Tacoma, and Vancouver. Scheduling is coordinated from our Seattle office with local dispatch to each area.
Serving Edgewood, WA - Our Local Coverage Area
We’re based in the Edgewood 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 Duct Sealing in Edgewood
The tidal humidity off the Bush River keeps relative humidity high year-round in Edgewood, especially in low-lying areas, so condensation forms inside duct runs and microbial growth takes hold faster than in drier inland Pierce County. Proper sealing after source removal breaks that cycle by stopping the infiltration of humid outside air. Call (361) 326-5060 for a free inspection.
Sealing alone won’t fix a musty smell if the duct interior is already fouled with mildew or rodent debris; it will just trap the odor inside. We remove the contamination first with HEPA-contained agitation and negative-air extraction, then seal the clean runs to prevent re-infiltration. Call (361) 326-5060 to schedule.
No. Fogging chemicals don’t reach growth deep in supply and return ducts without mechanical agitation and HEPA extraction, and they leave dead microbial material that can still trigger odors and allergies. We don’t sell fogging as a standalone service because it doesn’t solve the problem Edgewood’s humidity creates. Call (361) 326-5060 for an estimate on source removal and sealing instead.
Older Edgewood homes, especially the post-WWII military housing near Aberdeen Proving Ground’s wooded edges, have original duct with gaps at seams and register boots that mice and squirrels exploit for winter nesting. We remove the contamination, repair the entry points, and seal the system to prevent re-intrusion. Call (361) 326-5060 for an inspection.
Sealed ducts reduce static pressure, so the blower motor works less hard to move the same volume of air, which extends motor life and reduces energy draw. In Edgewood’s humid climate, sealed returns also stop the system from pulling in moisture-laden crawl space air that strains the evaporator coil. Call (361) 326-5060 for a pressure test and written estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Edgewood since 2004.