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 Kenmore
Duct sealing in Kenmore typically runs $450 – $1,200 for a whole-house seal on standard residential systems, with most jobs completed in a single scheduled visit. We’re the Duct Sealing team at Hollis Air Duct Cleaning, and we know Kenmore’s housing stock inside out, from the 1950s ranches near Saint Andrews Country Club to the split-levels along the Sammamish River corridor. Dispatch and scheduling are coordinated from our New York City office, but our crews serve Kenmore directly. We’ve walked enough crawlspaces in this town to know that foil tape over rusted galvanized steel isn’t a fix, it’s a delay. Call (361) 326-5060 for a free estimate, and we’ll put the price in writing before any work starts.
Why Hollis Air Duct Cleaning Is Kenmore’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our reputation in Kenmore is built on showing up inside the quoted window, pricing in writing, and leaving the site clean. That’s The Garrison Standard, and it applies to every job we run here.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. No subcontractor roulette, no van with a magnetic sign that wasn’t there yesterday.
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 book a Tuesday slot.
Every repair we perform in Kenmore carries our 365-Day Done Right Promise 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 slogan, it’s a document you sign.
HVAC Duct Sealing in Kenmore
HVAC Duct Sealing in Kenmore means addressing the specific failure modes of 50 – 70-year-old galvanized steel ductwork that dominates this market, not applying generic solutions designed for newer flex-duct systems. The job involves pressurizing the system, locating leaks with smoke or digital manometers, then sealing joints and seams with mastic and fiberglass mesh or mechanical fasteners where appropriate. A Kenmore homeowner needs this when rooms heat unevenly, utility bills spike without explanation, or crawlspace odors are pulling into living spaces through gaps in the return side. Typical whole-house sealing runs $450 – $1,200 depending on system size and accessibility, with crawlspace work at the higher end due to labor intensity.
Galvanized Steel Specialists
Original Kenmore ductwork from the 1960s and 1970s corrodes from the inside out. We remove loose scale with rotary brush agitation before sealing, so mastic bonds to sound metal rather than flaking rust. Skip this step and the seal fails before the next heating season.
Crawlspace Protocol
Duct runs beneath Kenmore’s river-corridor homes require HEPA-contained negative-air work during prep. Our Nikro machines maintain containment while we clean, so rodent debris and mold spores don’t migrate upstairs during the sealing process.
Duct Repair in Kenmore
Duct Repair in Kenmore addresses the physical damage that sealing alone cannot fix: disconnected joints, collapsed sections from rodent pressure, and rust-through holes in galvanized runs that no amount of mastic will close. Our crews replace damaged sections with properly sized metal or approved flexible duct, reconnect returns that have pulled apart under decades of vibration, and reinforce sagging supports that cause pooling and condensation. A Kenmore homeowner typically needs repair when airflow drops dramatically in specific zones, when visible rust appears at registers, or when a camera inspection reveals separation in crawlspace runs. Repair work ranges from $280 for isolated joint reconnection to $890 for multi-section replacement in difficult access areas, always priced in writing before we cut or seal anything.
Rodent Damage Restoration
Kenmore’s crawlspaces host active rodent populations that compress duct walls and chew entry holes. We replace compromised sections, seal with rodent-resistant materials, and advise on exclusion, though we don’t perform pest control ourselves.
Support and Slope Correction
Decades of settling in Kenmore’s older homes leave ducts pitched wrong, collecting condensation that accelerates rust. We rehang for proper drainage toward drains or sump locations, preventing the moisture that undermines new seals.
Trusted Brands We Service in Kenmore
We stock parts and materials from Aprilaire, Abatement Technologies, and Guardsman for Kenmore jobs, which means faster turnaround and no waiting on freight for standard repairs. Our equipment roster includes Rotobrush rotary brush systems for pre-seal cleaning inside corroded galvanized runs, and Nikro negative-air machines for contained crawlspace work. When we specify a filtration upgrade after sealing, we can source Honeywell and Aprilaire media on the same visit. For Kenmore homeowners with older forced-air systems, this parts availability matters, because a sealed duct system with a failing filter rack is only half solved. We explain what each component does for your specific airflow pattern, not in catalog language, but in terms of what you’ll feel at the register.
Common Duct Sealing Problems We See in Kenmore Homes
- Sealant applied over active rust. The 1960s – 70s ranch and split-level homes along the Sammamish River corridor in Kenmore often have long runs of unlined galvanized steel ductwork routed through crawlspaces, where river fog and rodent activity drive contamination patterns rarely seen in the hillside neighborhoods just a mile uphill. Mastic bonds to rust scale, not metal. We agitate and HEPA-vacuum first.
- Foil tape on humid supply ducts. Kenmore’s wet climate from October through April degrades adhesive-backed tape in months. We see this peeled and dangling on half the crawlspace inspections we perform. Mastic and mesh is the correct material here.
- Sealed joints with open rodent entry. Our techs were called to a split-level on the Sammamish River corridor where the homeowner had sealed gaps with foil tape, but a camera inspection revealed disconnected joints in the crawlspace duct run. We used agitation tools and HEPA filtration under negative pressure to remove rodent debris and rust flakes, then sealed the joints with mastic and mesh, restoring proper airflow to the supply and return ducts. Rodents had chewed new holes within weeks of the original tape job because the entry point was never found.
- Ignoring return-side leaks. Kenmore’s older homes often pull return air through crawlspace gaps, pressurizing the basement with river fog and mold spores. Sealing only supply registers leaves the health problem intact. We test both sides of the system.
Pricing for Duct Sealing in Kenmore, NY
Whole-house duct sealing in Kenmore runs $450 – $1,200, with most single-system ranch homes falling in the $550 – $850 range. Split-levels with crawlspace ductwork typically run $750 – $1,200 due to access labor. Isolated repairs, such as reconnecting a single separated joint or sealing a visible register boot leak, start around $280. What moves the price: system size, percentage of ductwork in crawlspaces versus basement, degree of pre-cleaning required for mastic adhesion, and whether physical repairs precede sealing. We do not quote per-vent pricing, which is the industry’s standard bait-and-switch format. One flat price per system, agreed in writing before work starts, based on what we find during your free estimate. Call (361) 326-5060 to schedule, and we’ll inspect with a camera so you see what we see.
We Also Serve Cities Near Kenmore
Our crews travel throughout the metro area for scheduled duct sealing work. We regularly serve Kenmore homeowners and also take jobs in Brooklyn, Queens, Manhattan, and Staten Island. Each visit carries the same written price guarantee and 365-Day Done Right Promise, regardless of drive distance.
Serving Kenmore, NY - Our Local Coverage Area
We’re based in the Kenmore 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 Kenmore
Every 5 – 7 years for homes with pre-1980 galvanized steel, compared to 10 – 15 years for newer flex-duct systems in neighboring Bothell or Kirkland. The internal corrosion in Kenmore’s mid-century stock progressively loosens scale that breaks new seals. We inspect with a camera at the 5-year mark to catch early failure. Call (361) 326-5060 to book a look, estimates are free.
Yes, when the odor is entering through leaks in the return ductwork that pull crawlspace air. Sealing those paths stops the pressure differential that draws river fog and mold spores into living spaces. If the duct interior itself is contaminated, sealing alone won’t remove the source, we clean first, then seal. Call (361) 326-5060 and we’ll determine which applies to your situation.
Duct cleaning removes accumulated ash fines and creosote particulate that wood stoves introduce into forced-air systems, especially in Kenmore’s rural properties with supplemental wood heat. Duct sealing closes the gaps that would let those same particulates re-enter from crawlspaces or wall cavities after cleaning. For wood-heated homes, we typically clean first, seal second, and price them as separate operations with separate written quotes. Call (361) 326-5060 to discuss scheduling both.
It depends on whether the outbuilding has a dedicated forced-air system and how often it’s used. For seasonal-use shops with minimal ductwork, spot repair of visible leaks is usually more cost-effective than full-system sealing. For year-round workshops with full duct systems, especially those drawing return air from dusty or damp spaces, sealing improves both air quality and equipment longevity. We don’t upsell full sealing where targeted repair suffices, we’ll tell you which category your building falls into during a free estimate. Call (361) 326-5060.
Kenmore’s housing stock is dominated by 1950s-1970s ranch-style and split-level homes, many with original forced-air furnaces and long runs of unlined galvanized steel ductwork; these older systems commonly have disconnected joints, rust, and debris accumulation, making air duct cleaning not just a maintenance task but a genuine health and efficiency concern. Bothell and Kirkland built later with flex duct and better moisture barriers. Kenmore’s wet, mild climate and lush tree canopy keep outdoor humidity high and drive mold and mildew growth inside ductwork, especially during the damp months from October through April; the same moisture also causes rust in older metal ducts. The combination of older materials and higher ambient moisture accelerates seal degradation. Call (361) 326-5060 and we’ll assess whether your specific home needs attention now or can wait.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Kenmore since 2004.