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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Cleveland
Duct sealing in Cleveland typically runs $450 – $1,200 for a whole-house job, depending on whether we’re patching accessible joints or repairing disconnected trunk lines buried in crawl spaces. Most Cleveland homeowners call us after noticing uneven heating, dust at registers, or utility bills that climb every winter despite the furnace running constantly. We’re familiar with the full spread of Cleveland housing, from the pre-1920s wood-frames in Slavic Village and Detroit-Shoreway to the mid-century ranches in West Park and Old Brooklyn. Our Duct Sealing in Cleveland crews dispatch from our Houston coordination office and carry the equipment to handle both original galvanized and thin-gauge flex systems. If you’re seeing black dust or feeling weak airflow at second-floor registers, call (361) 326-5060. We’ll give you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Cleveland’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Duct Sealing team has built a reputation in Cleveland by showing up inside the quoted window and leaving the site clean. Cleveland homeowners have left us strong local reviews specifically mentioning our technicians by name, the written prices they received before work began, and the 365-Day Done Right Promise that backed every repair. We answer our phones with a live person 24 hours a day, 7 days a week, so you’re not waiting through voicemail loops when your upstairs registers are blowing cold air in January. Our background-checked, uniformed technicians know Cleveland’s housing stock: they’ve crawled through dirt-floor crawl spaces under East Side homes, found the crushed flex runs in illegal basement modifications, and sealed the rusted seams on original galvanized that other companies suggested replacing entirely. That local knowledge saves Cleveland homeowners money and prevents unnecessary tear-outs.
Duct Insulation in Cleveland
Duct Insulation in Cleveland addresses a problem most homeowners don’t know they have: conditioned air leaking through thin or missing insulation on ducts running through unheated basements, crawl spaces, and attics. For related vent maintenance, see our Cleveland Dryer Vent Cleaning service. In Cleveland’s climate, this matters enormously. Our humid summers and freezing winters mean ducts spend months carrying 55-degree cooled air through 85-degree, moisture-laden basement air, then switch to 140-degree heated air in spaces that drop below freezing. Without proper insulation, condensation forms on cold duct surfaces in summer, loosening existing seals and feeding mold. In winter, heat loss through uninsulated runs forces your furnace to run longer and still leaves rooms cold. A typical duct insulation job in Cleveland runs $600 – $1,400 for a whole-house application, depending on linear footage and access.
When Insulation Beats Sealing Alone
Some Cleveland homes need insulation more than sealing, or both together. In the 1950s-1970s ranches of Old Brooklyn and West Park, thin-gauge flex duct was often installed with minimal insulation that has compressed or degraded over decades. Sealing leaks helps, but if the insulation jacket is torn or waterlogged from basement flooding, the air arriving at your registers will still be the wrong temperature. We assess both conditions and quote them separately so you know exactly what you’re paying for.
Materials We Use for Cleveland Conditions
We install formaldehyde-free fiberglass wrap with a reinforced vapor barrier, rated for the temperature swings Cleveland ducts endure. In damp crawl spaces common to Slavic Village and Detroit-Shoreway basements, we use closed-cell foam insulation on exposed trunk lines where moisture intrusion is severe. Every insulation job includes fresh sealing at all joints, because new insulation over old leaks just hides the problem.
HVAC Duct Sealing in Cleveland
HVAC Duct Sealing in Cleveland is rarely a simple matter of taping a few visible joints. In this market, the real problems are hidden: disconnected trunk lines, crushed flex runs from unpermitted basement modifications, and rusted seams on original galvanized that have never been accessed since installation. A typical HVAC duct sealing job in Cleveland runs $450 – $1,200, with simpler accessible work at the lower end and crawl-space trunk line repair at the higher end. We use mastic and reinforced mesh for permanent seals, not foil tape that fails within a season on damp metal. Our technicians carry Rotobrush rotary systems and Nikro negative-air machines to clean before we seal, because mastic won’t bond to rust flakes or decades of black dust.
The Real Scope of Cleveland Sealing Work
We were called to a 1918 wood-frame home in Slavic Village where the homeowner complained of uneven heating and black dust at every supply register. Using negative pressure and camera inspection, our tech found the main trunk line had separated at a joint inside a damp, dirt-floor crawl space and had been pulling in soil, rust flakes, and rodent nest debris for years. After source removal and sealing the disconnected run with mastic and mesh, the static pressure at the air handler dropped and the homeowner finally got even airflow upstairs. This is the kind of hidden failure we find weekly in Cleveland’s older neighborhoods.
Postwar Homes Present Different Problems
The 1950s-1970s tract homes in West Park and Old Brooklyn used thin-gauge flex duct and sheet metal with minimal sealing at the original installation. Decades of thermal cycling have loosened connections, and homeowners often find entire rooms that never heat or cool properly. We pressure-test the system to locate leaks, then seal or replace crushed runs with properly supported flex that won’t sag and disconnect again.
Trusted Brands We Service in Cleveland
We carry professional-grade equipment and materials from Nikro, Honeywell, and Aprilaire, plus Carrier in Cleveland, the same brands commercial crews rely on. For Cleveland homeowners, this means we stock the right mastic, mesh, and insulation products for local conditions, not hardware-store substitutes that fail in damp basements. Our Nikro negative-air machines allow us to maintain containment while working in occupied homes, and our Honeywell and Aprilaire filtration products integrate with sealed systems to maintain pressure balance. Because we keep common parts and materials on our Cleveland service vehicles, most sealing jobs are completed in a single visit without waiting on supply-house orders.
Common Duct Sealing Problems We See in Cleveland Homes
- Disconnected galvanized trunk lines in dirt-floor crawl spaces. In pre-1920s East Side homes, the main trunk often runs through unheated, damp crawl spaces and separates at joints due to decades of humidity cycling and structural settling. The system pulls in soil, rust, and debris instead of delivering conditioned air to rooms.
- Rusted seams on original unlined galvanized duct. Cleveland’s humid summers and freezing winters accelerate corrosion at seams and joints. Sealing tape or mastic applied over rust fails within a season; the metal must be cleaned and primed first for a permanent seal.
- Crushed flex runs from unpermitted basement modifications. Common in older Cleveland neighborhoods, these illegal alterations leave flex duct kinked, disconnected, or blowing directly into crawl spaces. No amount of sealing at the trunk line fixes air lost through a crushed run buried behind a finished basement wall.
- Condensation-damaged seals in unconditioned basements. Summer humidity condenses on cold duct surfaces, loosening mastic and promoting mold growth that reopens sealed leaks. Winter dryness then causes shrinkage and cracking. Cleveland’s seasonal extremes mean seals must be rated for both conditions.
Pricing for Duct Sealing in Cleveland, TX
Whole-house duct sealing in Cleveland typically costs $450 – $1,200. Simple jobs with accessible leaks and minimal cleaning fall at the lower end. Jobs requiring crawl-space access, trunk line reconnection, or extensive rust remediation run higher. Duct insulation adds $600 – $1,400 depending on linear footage. We do not quote per-vent prices or bait you with a low teaser that balloons once our technician is inside. Every Hollis job receives one flat price per system, written down and agreed before any work begins. That price does not move at the door. We also provide before-and-after photos of your own ducts, so you see what was found and what was sealed. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Cleveland
Our crews regularly travel to Cleveland from our Houston coordination office and also serve Conroe, Humble, Spring, and Willis with the same written pricing and 365-Day Done Right Promise. Wherever you are in the area, you get background-checked, uniformed technicians and a live person answering the phone.
Serving Cleveland, TX - Our Local Coverage Area
We’re based in the Cleveland 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 Cleveland
Yes, in most cases we can seal original galvanized ducts without full replacement, provided the metal hasn’t rusted through. We clean and prime the seams first, then apply mastic and reinforced mesh for a permanent bond that tape alone cannot achieve. Call (361) 326-5060 for a free inspection and written estimate.
The most common failure is disconnection of the main trunk line at a joint inside an unheated, dirt-floor crawl space, caused by decades of humidity cycling and often compounded by illegal basement duct modifications. This hidden separation pulls in debris and defeats airflow to entire zones of the house. We locate these with camera inspection and seal them with mastic and mesh after source removal.
Yes, we seal and replace flex duct in mid-century ranches and splits throughout West Park and Old Brooklyn. These systems often have crushed, sagging, or disconnected runs from original poor installation and decades of thermal cycling. We pressure-test to locate all leaks, then seal accessible joints and replace damaged flex with properly supported, adequately insulated new runs.
Cleveland’s climate extremes cause condensation on cold duct surfaces in summer, which loosens mastic and promotes mold, followed by winter dryness that shrinks and cracks seals. We use materials rated for this temperature and moisture cycling, and we always clean and prime metal surfaces before sealing to ensure bond strength that survives both seasons.
Yes, our technicians work to NADCA assessment and cleaning standards as part of The Garrison Standard, which also requires arriving inside the quoted window, pricing in writing before work starts, and leaving the site clean. For Cleveland’s older homes, this means camera inspection before sealing, containment during work, and verification testing after completion.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Cleveland and surrounding communities since 2004.