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 Ocala
Ocala’s summers don’t forgive weak ductwork. When your conditioned air leaks into a 140°F attic or under a humid crawlspace, your system runs longer, your bills climb, and the rooms farthest from the air handler never quite cool down. Duct sealing closes those gaps permanently. Our Duct Sealing team covers Ocala from the horse farms east of I-75 through the 55+ communities near On Top of the World, with scheduling coordinated from our Miami office and crews dispatched locally to Marion County. Call (361) 326-5060 for a free estimate with a written price before any work starts.
Why Hollis Air Duct Cleaning Is Ocala’s Preferred Duct Sealing Company
We’ve been sealing ducts since 2004, and Ocala’s housing stock keeps us sharp. The pre-1990 ranch homes in Woodfields, the manufactured homes south of town, and the block construction in the Historic District each present different leakage patterns. Roy Castellanos and our team have walked enough Ocala attics to know where the joints fail first in this climate.
Our customers here aren’t looking for the lowest teaser quote. They’re looking for a crew that shows up inside the window, prices the job in writing, and stands behind it. That’s The Garrison Standard, and it’s how we operate on every Ocala job. Our 365-Day Done Right Promise means if the seal fails within a year, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. You’ll know your technician’s name before they arrive, and they’ll arrive in uniform, background-checked, and ready to work.
Air Duct Sealing in Ocala
Air Duct Sealing in Ocala means closing the gaps, cracks, and disconnected joints in your HVAC duct system so the air you pay to cool actually reaches your living spaces. In Marion County’s climate, this isn’t optional maintenance, it’s correction for years of heat expansion, humidity corrosion, and settling that open seams in ductwork. Most Ocala homeowners notice they need sealing when bedrooms stay warm, dust blows from registers, or summer electric bills spike 30% or more. A typical whole-home duct sealing job in Ocala runs $850 – $1,800 depending on system size, attic accessibility, and whether we’re working with rigid metal, flex duct, or the combination common in older homes.
Leak Detection and Assessment
We pressurize your duct system and measure airflow loss with calibrated equipment. In Ocala, we regularly find 25 – 40% leakage in homes built before 1990, especially in attics where mastic has dried and cracked after decades of 130°F-plus heat cycles.
Mastic Application and Mechanical Sealing
We seal joints with UL-181 rated mastic, not duct tape, which fails in Florida humidity. For flex duct separations, we use mechanical fasteners plus mastic. The goal is a permanent seal that holds through Ocala’s thunderstorm season and the daily on-off cycling that stresses connections.
Duct Sealing Services in Ocala
Duct Sealing Services in Ocala address the specific failure modes this region’s climate and housing create. Our crews seal supply and return plenums, register boots, trunk line connections, and the small cracks around air handler cabinets that most homeowners never see. We also handle Air Duct Cleaning in Ocala and Dryer Vent Cleaning in Ocala when systems need multiple services. A typical sealing project takes 4 – 6 hours for a single-system home and is scheduled by appointment, not as an emergency dispatch.
Attic System Sealing
Ocala’s ranch homes and newer construction often place ductwork in attics that exceed 140°F in July. We seal every accessible joint and wrap exposed flex duct with proper insulation where it’s degraded. Without this, you’re paying to cool your attic.
Crawlspace and Underside Work
Manufactured homes and some older site-built properties in Marion County have duct runs under the floor. These sag, separate at joints, and pull in crawlspace air. We re-support and seal these runs, which often improves air quality as much as it cuts energy waste.
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 Ocala
We work with and install filtration and sealing products from Aprilaire, Abatement Technologies, and Guardsman, the same brands commercial HVAC contractors specify. Our vans carry mastic, mechanical fasteners, and replacement duct sections sized for the systems we encounter in Ocala’s mixed housing stock. If your job requires new flex duct, metal transition pieces, or upgraded register boots, we source and install them during the same visit. No waiting on parts, no return trips that stretch a one-day job into a week. For homeowners in On Top of the World, Woodfields, or the properties along County Road 475, that means your system is sealed and tested before we leave.
Common Duct Sealing Problems We See in Ocala Homes
- Cracked mastic at plenum connections. The original water-based mastic in pre-1990 Ocala homes has dried and flaked after 30+ years of attic heat. We scrape and reseal with modern solvent-based mastic rated for continuous 200°F exposure.
- Disconnected flex duct under manufactured homes. The wire-helix flex duct common in Marion County’s mobile and modular housing sags between support straps, pulling apart at couplings. We re-support every 4 feet and double-clamp each joint.
- Leaky register boots in block construction. Ranch homes in neighborhoods like Woodfields often have metal boots set into block walls with gaps caulked decades ago. That caulk shrinks and falls out; we seal with expanding foam and mastic for a permanent fix.
- Return air leaks pulling attic dust. In Ocala’s pollen-heavy environment, a leaky return plenum sucks in attic air loaded with oak pollen, dust mites, and occasionally mold spores. Sealing the return side often improves indoor air quality more than the supply side.
Pricing for Duct Sealing in Ocala, FL
Most whole-home duct sealing projects in Ocala fall between $850 and $1,800. A small manufactured home with accessible flex duct might run $650 – $950. A larger ranch with attic rigid duct, multiple plenums, and register boot sealing typically reaches $1,400 – $1,800. What moves the price: system size (single vs. dual), attic accessibility (blown insulation adds time), extent of disconnection versus simple joint sealing, and whether we need to replace degraded flex sections or boots.
We give one flat price per system, agreed in writing before any work starts. No per-vent pricing, no add-ons at the door. You’ll see the number, sign off, and that’s what you pay. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Ocala
Our crews work throughout Marion and Lake Counties, including Duct Sealing in Ocala and the surrounding communities of Lady Lake, Fruitland Park, Leesburg, and Eustis. The same written pricing, same 365-Day Done Right Promise, same background-checked technicians apply in every town we serve.
Serving Ocala, FL - Our Local Coverage Area
We’re based in the Ocala 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 Ocala
Duct sealing in Ocala typically costs $850 – $1,800 for a whole home, which aligns with pricing in Leesburg and Eustis but runs slightly below Gainesville’s market due to lower travel costs and more competitive contractor density here. Manufactured homes common in Ocala’s 55+ communities often fall at the lower end, while large ranch homes with attic systems push toward the upper range. Call (361) 326-5060 for an exact quote, estimates are free.
Yes, we seal ducts across Ocala including On Top of the World, Woodfields, the Historic District, and properties east of I-75 near the horse farms. Our technicians are familiar with the specific duct configurations in each area, from the flex duct common in manufactured home communities to the rigid metal systems in older ranch neighborhoods.
We test before and after with a calibrated pressure gauge and show you the leakage percentage reduction. Most Ocala homes start at 25 – 40% leakage and finish below 10%. We also leave before-and-after photos of accessible work areas. If the numbers don’t improve, we don’t call the job complete.
Ocala’s humid subtropical climate, with daily summer thunderstorms and attic temperatures regularly exceeding 130°F, accelerates mastic drying and metal expansion-contraction cycles. Most properly sealed systems hold 10 – 15 years, but original unsealed ductwork in pre-1990 homes should be assessed every 5 years for new gaps. The pollen load from surrounding horse farms and oak trees also means leaky returns pull more contaminants into your system here than in drier climates.
If any sealed joint fails, separates, or leaks within 365 days of our work, Hollis returns and repairs it at no charge, including a free second visit. This is backed in writing on every job, not a verbal assurance. The guarantee covers our workmanship and materials; it does not cover new damage from rodents, construction, or structural shifts. Call (361) 326-5060 if you suspect an issue, we’ll schedule priority return service.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Ocala and Marion County since 2004.