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 Duct Sealing Across Canal Winchester
We dispatch to Canal Winchester from our Cleveland office, and our crews know the split personality of this town cold. Ten minutes west of the historic canal corridor, we’re sealing flex-duct boots in 2019 builds where drywall dust still blows from registers a month after closing. Ten minutes east, we’re chasing leaks through century-old galvanized trunks that were never sized for forced air in the first place. That local knowledge matters because duct sealing in Canal Winchester is not one uniform job. It’s two completely different problems, and treating them the same way wastes your money. If you’re seeing dust at your registers, smelling construction debris when the heat kicks on, or your upstairs rooms never reach temperature, call us at (361) 326-5060. We’ll run a camera inspection, show you what’s actually leaking, and give you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Canal Winchester’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Duct Sealing team has worked the Canal Winchester market long enough to know which builders leave boot-to-subfloor gaps unsealed and which neighborhoods run ductwork through conditioned attics versus unconditioned basements. That matters when you’re deciding whether to trust a quote.
Our technicians are background-checked and uniformed, and they operate under The Garrison Standard: arrive inside the quoted window, price in writing before touching anything, complete the job by the book, and leave the site clean. Every duct sealing job in Canal Winchester carries our 365-Day Done Right Promise in writing. If the seal fails within a year, we come back and make it right at no charge, including a free second visit.
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 for a scheduling question.
Air Duct Sealing in Canal Winchester
Air Duct Sealing in Canal Winchester means closing the gaps, cracks, and disconnected joints in your ductwork that leak conditioned air into places you don’t live. In newer subdivisions like the Villages at Canal Winchester and Weaver Woods, we most often find unsealed boot-to-floor joints at the trunk, crushed flex runs where installers wedged them through tight attic framing, and plenum connections that look tight to the eye but leak under pressure. In the Old Town core near the historic canal corridor, we seal retrofitted galvanized trunks that were never properly joined to modern equipment. A typical residential duct sealing job in Canal Winchester runs $450 – $850 for a whole-system seal, depending on accessibility and the extent of disconnection we find.
Construction Debris Removal Before Sealing
We don’t seal over contamination. Our techs use Rotobrush rotary agitation tools under Nikro negative-air HEPA extraction to pull drywall dust and construction debris out of flex runs first. Sealing a dirty duct just traps the problem. We remove the source, then seal the pathway.
Camera-Guided Leak Detection
A visual check from the register tells you almost nothing. We run a camera through the full run to find crushed flex, disconnected boots, and gaps at the plenum that you’d never spot from the living room. You see the footage. We point to the leak. Then we price the fix in writing.
Duct Sealing Services in Canal Winchester
Duct Sealing Services in Canal Winchester from Hollis cover the full range from single-register boot sealing to whole-system mastic application on plenums, trunks, and connections. Because Canal Winchester’s 1990s – 2020s builds run most ductwork through conditioned attics using flexible insulated ducting, the construction dust and drywall debris left at handover sits in a low-traffic, unconditioned-by-design segment. A new house here often needs sealing and source removal before its first heating season, not after five years. In adjacent communities with predominantly basement-run ductwork, that same debris would behave differently. Whole-system sealing in Canal Winchester typically falls between $650 and $1,200 when mastic application and metal tape reinforcement are needed at multiple trunk connections.
Mastic Application for Flex-Duct Systems
We seal with Guardsman mastic, a water-based sealant rated for flexible duct connections that stays flexible after curing. Unlike duct tape, which dries and fails, mastic bonds to the boot, trunk, and flex inner liner for a permanent seal. We apply it by hand at every joint we identify.

Pressure Testing After Seal Completion
After sealing, we run a pressure test to verify the system holds. You get the before and after numbers in writing. If the duct leakage doesn’t drop, we find what we missed and fix it. That’s part of the job, not an extra charge.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Canal Winchester
Our equipment roster includes Rotobrush rotary brush systems for agitation and debris removal, Nikro negative-air machines for HEPA-filtered extraction, and sealing products from Guardsman for permanent mastic bonds. We also stock filtration and ventilation components from Aprilaire and Abatement Technologies for Canal Winchester customers who need upgrades after sealing is complete. Because we carry these parts on our Cleveland-based service vehicles, most Canal Winchester jobs don’t wait on ordered materials. If your sealing job reveals a failed damper or a disconnected boot that needs replacement, we can often source and install the correct component same visit rather than scheduling a return trip.
Common Duct Sealing Problems We See in Canal Winchester Homes
- Boot-to-subfloor gaps in new builds. Builders in the Villages at Canal Winchester and Weaver Woods routinely leave flex-duct boot-to-subfloor joints unsealed at handover. Construction dust and drywall debris in the conditioned-attic runs leak directly into living space at registers, and homeowners smell it every time the blower cycles.
- Delayed sealing until after first heating season. New-build homeowners often wait, thinking ducts need time to “settle.” By January, winter static and dryness in Canal Winchester has pulled that drywall dust through the air handler and blower motor, contaminating components that stayed clean until the delay.
- Skipped plenum and trunk inspections. Flex runs can look tight while the plenum connection behind them is fully disconnected. We find this constantly in Canal Winchester’s 2010s-era builds where attic framing forced tight bends that separated at the collar.
- Retrofit mismatches in Old Town homes. Near the Ohio & Erie Canal route, original undersized galvanized duct runs were forced-air retrofits decades ago. Technicians frequently discover collapsed or disconnected trunk lines during what the homeowner booked as a routine evaluation.
Pricing for Duct Sealing in Canal Winchester, OH
We price duct sealing in Canal Winchester by the system, not by the vent. A single-register boot seal runs $180 – $340. Partial-system sealing for multiple leaks in accessible attic ductwork typically falls $450 – $650. Whole-system sealing with full mastic application, pressure testing, and debris removal before sealing runs $650 – $1,200. What moves you up or down: attic accessibility (tight truss spacing adds time), extent of construction debris requiring source removal first, and whether we find disconnected trunk lines that need repair before sealing can hold. Every price is written down before work starts. It does not move at the door. We don’t do per-vent pricing, and we don’t bait with a low coupon that balloons once we’re inside. Call (361) 326-5060 for a free estimate. We’ll inspect, show you camera footage, and give you a flat written price you can compare without pressure.
We Also Serve Cities Near Canal Winchester
Our Canal Winchester crews also handle duct sealing calls in Groveport, Pickerington, Reynoldsburg, and Baltimore. Dispatch and scheduling are coordinated from our Cleveland office, with local technicians serving each community from stocked service vehicles. The same written pricing, same 365-Day Done Right Promise, same live-answer phone line applies in every town we cover.
Serving Canal Winchester, OH - Our Local Coverage Area
We’re based in the Canal Winchester 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 Canal Winchester
Because conditioned-attic flex-duct runs in these builds trap construction dust and drywall debris in a space that sees no regular foot traffic or cleaning. The debris sits there until the blower pulls it through unsealed boot joints into your living space. We were called to a 2019 build in the Villages at Canal Winchester where the homeowner complained of drywall dust puffing from every register a week after closing. Our tech ran a camera inspection, found the flexible runs loaded with construction debris and multiple unsealed boot-to-floor joints leaking at the trunk, then used agitation tools under negative pressure with HEPA filtration to pull the source material out before sealing the boots and plenum with Guardsman mastic. The dust stopped, and the homeowner finally got the clean handover the builder never delivered. Call (361) 326-5060 if you’re seeing similar symptoms.
Yes. Newer subdivisions use flexible insulated ducting through conditioned attics, so we seal with mastic at boot-to-trunk joints and repair crushed flex runs. Old Town homes near the canal corridor often have rigid galvanized steel or partially retrofitted ductwork in unconditioned basements, requiring metal tape and mastic at very different connection points. The tools and materials overlap; the diagnosis and access do not. Call (361) 326-5060 and we’ll tell you which category your home falls into.
Central Ohio’s humid summers promote mold and microbial growth in unconditioned basement and crawlspace ducts, while winter static and dryness pulls dust through the system more aggressively. We recommend sealing before the heating season starts, so you’re not pulling construction debris or mold spores through a freshly cleaned system. If you’ve already noticed dust at registers in January, sealing combined with source removal can still help, but earlier is cleaner. Call (361) 326-5060 to schedule before the next seasonal swing.
Disconnected flex runs behind the plenum, crushed ducts where framing forced tight bends, and boot-to-subfloor gaps hidden by attic insulation. A visual check from the register shows you the last six inches. The camera shows you the full run, and we record the footage so you see what we see. Call (361) 326-5060 to book an inspection; estimates are free.
Yes. Our sealing and source-removal work follows NADCA guidelines for containment, negative-pressure extraction, and post-job verification. We use HEPA filtration on every job, seal active leaks before agitation to prevent cross-contamination, and pressure-test after completion. The 365-Day Done Right Promise backs it in writing. If the seal fails or debris returns due to our work, we come back at no charge. Call (361) 326-5060 with specific standard questions; we’ll walk you through our protocol.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Canal Winchester since 2004.




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