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 Richmond Heights
Duct sealing in Richmond Heights typically runs $1,200 – $2,800 for a whole-house system, with most mid-century ranches and split-levels falling in the $1,600 – $2,200 range. Our crews are dispatched from the Cleveland office and carry the tools to seal original rigid-metal ductwork, joist-bay return panning, and buried air-handler plenums that are standard in this city’s 1940 – 1975 housing stock. Call (361) 326-5060 for a free written estimate before any work starts.
We’re familiar with Richmond Heights because we work here regularly. The post-war ranches off Richmond Road, the split-levels near Highland Road, and the 1950s bungalows south of Euclid Avenue all share the same problem: duct systems that were never sealed at installation and have been leaking conditioned air into basements, crawlspaces, and soffit chases for sixty-plus years. That is not a maintenance issue. It is a remediation job, and it takes different equipment and a different eye than sealing modern flex-duct in a new build.
Our technicians arrive uniformed, background-checked, and inside the quoted window. The price is written down before we touch anything. That is The Garrison Standard, and it applies to every Duct Sealing job we do in Richmond Heights.
Why Hollis Air Duct Cleaning Is Richmond Heights’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. In Richmond Heights, that longevity means something. We have worked on enough of the original 1940s – 1950s ranch systems to know where the leaks hide before we open the basement door. We know which streets still have factory-original return-air panning in the floor joists, and which split-level floor plans bury the air handler in a closet next to the half-bath. That local knowledge saves time and saves homeowners from paying for incomplete work.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues. When you call (361) 326-5060, you talk to a human who can schedule your free estimate and explain what the technician will look for.
Every repair we perform in Richmond Heights is covered by our 365-Day Done Right Promise. If the seal fails within a year, we come back and make it right at no charge, including a free second visit. That promise is written on every job, not implied.
Roy Castellanos leads Hollis Air Duct Cleaning with the expectation that every technician follows The Garrison Code: arrive inside the window, price in writing, complete the job by the book, and leave the site clean. That discipline is why homeowners in Richmond Heights call us back and refer their neighbors.
Air Duct Sealing in Richmond Heights
Air Duct Sealing in Richmond Heights means sealing the original rigid-metal supply runs, joist-bay return panning, and plenum joints in homes built between 1940 and 1975. Most of these systems were installed without mastic or mesh at the seams, and decades of thermal cycling have opened gaps where heated or cooled air escapes into unconditioned spaces. A typical whole-house sealing job in Richmond Heights runs $1,200 – $2,800, with the majority of ranches and smaller split-levels landing between $1,600 and $2,200.
What We Seal on Mid-Century Systems
Our crews seal supply trunk lines, branch takeoffs, register boots, and the critical return-air panning that was cut into floor joists in Richmond Heights’s 1940s – 1950s ranches. We use duct-sealing mastic and fiberglass mesh, not tape, because mastic remains flexible and will not dry out or peel like standard duct tape. For joints that have separated or corroded, we may recommend partial replacement before sealing.
Camera Inspection Before Sealing
We run a camera through the system first. In Richmond Heights, we often find rust scale, debris, and in some cases standing water in the low points of basement runs. Sealing over that material traps it inside and can cause blockages or odors later. If the ducts need source removal first, we quote that separately and perform it under negative-air pressure with HEPA filtration before any mastic goes on.
Duct Sealing Services in Richmond Heights
Duct Sealing Services in Richmond Heights address the specific failure modes of aging rigid-metal and early flexible-duct systems in this built-out inner-ring suburb. Because there is virtually no new construction here, every sealing job is remediation on mid-century infrastructure. Costs align with the ranges above: $1,200 – $2,800 whole-house, with most homes between $1,600 and $2,200.
Source Removal and Preparation
Before sealing, we clean the ductwork with Rotobrush rotary brush systems and Nikro negative-air machines. This removes the rust scale, pollen, and debris that accumulate in uninsulated basement runs through Richmond Heights’s lake-effect winters. Sealing over dirty ducts is a shortcut we do not take. The mastic bonds better to clean metal, and the homeowner gets a system that performs better and smells cleaner.

Rebalancing After Sealing
Once the leaks are sealed, we rebalance the registers. Many Richmond Heights homes have had decades of uneven airflow because supply was bleeding into the basement before reaching the bedrooms. After sealing, we measure airflow at each register and adjust dampers so the furnace or air handler can hold temperature without overworking. Homeowners usually notice the difference within the first heating cycle.

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 Richmond Heights
Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines for source removal, plus sealing and filtration products from Aprilaire, Abatement Technologies, and Guardsman. We stock mastic, mesh, and register boots sized for the rigid-metal ductwork common in Richmond Heights, so most jobs do not wait on parts. When a 1950s ranch needs a custom transition or a buried air handler needs plenum access, we fabricate or source what is needed and return to complete the seal within the quoted timeframe. That matters in a city where the heating season starts hard and early.
Common Duct Sealing Problems We See in Richmond Heights Homes
- Sealing over debris: Some crews skip source removal and apply mastic directly over rust scale and construction dust. That traps material in the runs, and it flakes loose later, blocking airflow and circulating particles. We clean first, seal second.
- Ignoring the original return-air panning: The joist-bay returns in Richmond Heights’s 1940s – 1950s ranches are a major leak path. Many technicians seal only the visible branch runs and leave the panning untouched. We seal the entire return path, including the joist bays and the connection to the trunk.
- Missing the air handler closet: In split-levels where the furnace is buried in a closet next to the half-bath, the cabinet seams and plenum joints are often inaccessible and go unsealed. We remove access panels and seal what others cannot reach.
- Leaving basement supply runs uninsulated: Richmond Heights’s rigid-metal basement ducts lose heat through conduction even after sealing. We recommend insulation wraps where the budget allows, and we note the condition in our written report so the homeowner can plan for it.
Pricing for Duct Sealing in Richmond Heights, OH
A typical whole-house duct sealing in Richmond Heights runs $1,200 – $2,800. Most post-war ranches and smaller split-levels fall between $1,600 and $2,200. Larger homes with multiple zones, extensive joist-bay return panning, or buried air handlers that require access modifications can reach the upper end.
What moves the price: the linear footage of ductwork, the number of registers and returns, whether source removal is needed before sealing, and accessibility. A ranch with an open basement and exposed metal is straightforward. A split-level with the air handler in a closet and runs buried in soffit chases takes more time and more material.
We give one flat price per system, agreed in writing before work starts. No per-vent pricing. No add-ons at the door. The estimate is free, and it includes a camera inspection so you see what we see. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Richmond Heights
Our Duct Sealing in Richmond Heights crews also work in Columbus, Cleveland, Parma, and Lorain. Dispatch and scheduling are coordinated from our Cleveland office, and we route technicians to minimize drive time and keep appointments inside the quoted window. Whether you are in Richmond Heights proper or in a neighboring community with similar mid-century housing stock, the same written pricing and 365-Day Done Right Promise apply.
Serving Richmond Heights, OH - Our Local Coverage Area
We’re based in the Richmond Heights 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 Richmond Heights
Yes. The joist-bay return panning common in 1940s – 1950s Richmond Heights ranches can be sealed with mastic and mesh applied to the interior seams and the transition to the trunk line. We access the panning through the basement or crawlspace, clean it first under negative-air pressure, then seal the entire return path so conditioned air stops leaking into the wall cavities. Call (361) 326-5060 for a free inspection and written quote.
Richmond Heights sits in Northeast Ohio’s lake-effect snow belt, and homeowners run their furnaces daily for six months starting in late October. Sealed ducts deliver that heat to the rooms instead of bleeding it into cold basements and crawlspaces. The difference in comfort and utility cost is immediate and measurable. Fall sealing means you enter the heating season with a system that can hold temperature; spring sealing is useful but less urgent. Call (361) 326-5060 to schedule before the first cold snap.
It is a common problem, but not an obstacle. The buried air handler in Richmond Heights split-levels often has unsealed plenum joints and cabinet seams that leak into the chase and wall cavities. We remove the access panels, seal the joints with mastic, and replace the panels with proper gaskets. That work takes longer than an open-basement install, and we quote it accordingly. The written price covers everything before we start.
Yes. Sealing over decades of rust scale, pollen, and debris traps that material inside and can cause blockages or odors when the system runs. We perform source removal with Rotobrush and Nikro equipment under HEPA-filtered negative air before applying any mastic. The camera inspection shows you the condition beforehand, and the cleaning is quoted separately so you know the full cost in writing.
Look for mastic at the seams, not paint or tape. Original Richmond Heights rigid-metal systems have visible seams and snap-lock joints with no sealant. Painted metal still shows gaps at the corners. We run a camera and a pressure test to identify active leaks, then show you the footage. If a previous crew painted over the joints without sealing them, the pressure test will reveal the leaks and we will quote proper remediation. Call (361) 326-5060 for an honest assessment.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Richmond Heights and Northeast Ohio since 2004.




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