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 Hanover
Duct sealing in Hanover, OH typically runs $350 – $850 for a whole-home system, with most jobs completed in a single visit and priced in writing before any work begins. We’re the Duct Sealing team at Hollis Air Duct Cleaning, and we’ve been driving out to Hanover from our Cleveland dispatch office long enough to know the difference between a farmhouse off State Route 664 and a ranch near the Licking County line. Our technicians carry mastic sealant, metal-backed tape, and aerosol-based duct sealing equipment from Rotobrush and Abatement Technologies on every truck, so we’re not making a second trip because we guessed wrong about what your 1950s ductwork needs. Call us at (361) 326-5060 for a free estimate.
Hanover sits in western Ohio’s farming country, where the housing stock tells a story: original forced-air systems installed decades ago, ductwork running through unconditioned basements and crawl spaces, and joints that have worked themselves loose through thousands of heating and cooling cycles. That combination, plus the hard well water and wood-burning stove residue we see in so many local homes, means duct sealing here isn’t a luxury upgrade. It’s maintenance that keeps your HVAC system from bleeding conditioned air into your attic or crawl space.
Why Hollis Air Duct Cleaning Is Hanover’s Preferred Duct Sealing Company
We’ve earned our reputation in Hanover by showing up inside the window we promised and leaving the price where we wrote it. Our 365-Day Done Right Promise covers every duct sealing job in writing: if the seal fails within a year, we come back and make it right at no charge, including a free second visit. That’s not a verbal assurance; it’s printed on your invoice.
Our technicians are background-checked, uniformed, and expected to follow The Garrison Code on every Hanover job: arrive inside the quoted window, price in writing, complete the work by the book, and leave the site clean. We don’t send subcontractors you can’t identify. You know who’s 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, no waiting until Monday to schedule your Duct Sealing in Hanover.
Air Duct Sealing in Hanover
Air Duct Sealing in Hanover addresses the gaps, cracks, and disconnected joints in your forced-air system that pull heated or cooled air out of your living spaces and dump it into attics, crawl spaces, or wall cavities. In Hanover’s older farmhouses and mid-century ranches, we regularly find supply plenums rusted through from decades of condensation, return boots pulled away from floor joists, and flex duct that’s collapsed or chewed by rodents common to rural properties. Sealing these leaks with mastic compound and professional-grade metal tape restores pressure balance so your furnace and air conditioner don’t work overtime.
A typical whole-home duct sealing in Hanover runs $350 – $850, depending on system accessibility and the extent of deterioration. Homes with ductwork in dirt-floored crawl spaces, common near the agricultural fields south of town, take longer to access and seal properly.
When Sealing Beats Replacement
Not every leaky system needs new ductwork. If your metal ducts are structurally sound but leaking at joints and seams, mastic sealing restores efficiency at a fraction of replacement cost. We see this scenario frequently in Hanover’s post-war ranches, where the original galvanized steel is intact but the original tape has dried and fallen away.
Aerosol Duct Sealing for Hard-to-Reach Runs
For ductwork buried in walls or inaccessible crawl spaces, we offer aerosol-based sealing that pressurizes the system and seals leaks from the inside. The sealant particles find gaps as small as 1/16 inch and bond to the edges, a method that reaches spots no technician’s hand can. We use Abatement Technologies equipment for this process, the same systems deployed in commercial buildings.
Duct Sealing Services in Hanover
Duct Sealing Services in Hanover cover everything from spot repairs on single leaking joints to comprehensive sealing of an entire distribution system. Our process starts with a pressure test to quantify leakage against the conditioned floor area, a measurement that tells us whether your system meets the standard or is hemorrhaging efficiency. We then access each run, clean the sealing surfaces, and apply mastic or mechanical fasteners as appropriate. For homeowners who’ve already had us out for Air Duct Cleaning in Hanover, we can assess sealing needs during that same visit.
Pricing follows the same structure: written before work starts, flat per system, no per-vent add-ons that balloon at the door. A partial sealing on a single problematic zone might run $180 – $320, while comprehensive whole-home sealing reaches the upper end of our range.
Return System Sealing
Return ducts operate under negative pressure, so they pull unconditioned air from basements, crawl spaces, and wall cavities directly into your breathing air. In Hanover homes with dirt-floor cellars, this means radon, mold spores, and pesticide drift from surrounding farmland. Sealing return pathways is often the highest-impact improvement we can make.
Supply Register and Boot Sealing
The connection between your floor or wall register and the duct boot behind it is a common leak point, especially in older homes where settling has pulled materials apart. We seal these junctions with foam-backed tape and mastic, stopping the drafts that make rooms near Hanover’s ridge lines feel ten degrees colder than the thermostat reading.
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 Hanover
Our trucks carry sealing materials and compatible components from Aprilaire, Abatement Technologies, Guardsman, and Rotobrush, the same professional-grade products specified for commercial HVAC work. For Hanover homeowners, this means we’re not ordering parts from a warehouse three counties away and making you wait. We stock mastic compounds rated for the temperature swings your attic sees, metal-backed tapes that won’t peel in humid crawl spaces, and aerosol sealant compatible with residential duct materials common in Ohio’s older housing stock. If your system uses specialized fittings from Honeywell or Aprilaire filtration components, we match and seal around them without improvisation.
Common Duct Sealing Problems We See in Hanover Homes
- Rusted plenums and trunk lines. Decades of condensation from Hanover’s humid summers and cold winters corrode galvanized steel from the inside out. We find pinholes and seam separations in basement plenums that spray heated air directly into unfinished space, wasting 20 – 30% of system output before it reaches a register.
- Disconnected flex duct in crawl spaces. The modest ranch homes built around Hanover in the 1960s and 70s often used flex duct for additions or retrofitted central air. Over time, the wire helix relaxes, the duct sags, and the connection to the trunk line pulls free. We reattach and seal with mechanical fasteners, not duct tape that will fail in the next season.
- Return air pathways pulling from wall cavities. In farmhouses where central heat was added after original construction, installers sometimes used wall studs as return channels instead of proper ductwork. These leak continuously into attics and exterior walls, and they’re impossible to seal without accessing and lining the cavity properly.
- Wood stove residue degrading tape adhesives. The fine ash and creosote particles that circulate through Hanover homes with supplemental wood heat coat duct surfaces with an oily film. Standard cloth-backed tape won’t bond to this residue; we clean with specialized degreasers and use mastic rated for contaminated surfaces.
Pricing for Duct Sealing in Hanover, OH
Whole-home duct sealing in Hanover typically costs $350 – $850. Partial sealing on one or two problematic zones runs $180 – $320. The final price depends on system accessibility (crawl space versus basement), the extent of deterioration, and whether we need to remove old insulation to access the ducts. We also offer Dryer Vent Cleaning in Hanover, and bundling both services during the same visit reduces your total cost.
Every price is written down before any work starts. No estimates that balloon once the technician is inside. No per-vent pricing that turns a quoted $199 into $600 at the door. If we find additional leaks during our inspection, we show you, explain the impact, and let you decide before we proceed. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Hanover
Our crews regularly travel from the Cleveland dispatch office to Columbus, Cleveland, Parma, and Lorain for duct sealing and related HVAC services. If you own property in multiple locations or need to coordinate work for family members across the region, we can schedule sequentially and apply consistent pricing and standards to every job.
Serving Hanover, OH - Our Local Coverage Area
We’re based in the Hanover 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 Hanover
We typically schedule Hanover appointments within 3 – 5 business days, with dispatch coordinated from our Cleveland office to ensure crews arrive inside the quoted window. Call (361) 326-5060 for the next available opening.
Yes, we seal ducts throughout Hanover and the surrounding township, including farmhouses on private wells off State Route 664 and ranch homes near the Licking County border. Our trucks carry equipment for both basement and crawl space access.
We prioritize calls where a disconnected duct is causing active heating or cooling loss, especially during Hanover’s subzero winter periods or peak summer humidity. Phones are answered live 24/7 to assess urgency and schedule accordingly.
Hanover pricing runs roughly 10 – 15% below Columbus rates and comparable to Cleveland outer suburbs, reflecting lower travel time from our dispatch point and the simpler access common in Hanover’s single-story homes versus multi-level urban properties.
Every duct sealing job carries our 365-Day Done Right Promise in writing: if the seal fails within one year, Hollis returns and makes it right at no charge, including a free second visit. This applies to all Hanover locations we serve.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Hanover since 2004.