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 Apopka
We dispatch our Duct Sealing crews to Apopka from our Orlando office, and we know the roads well enough to hit the quoted arrival window, whether we’re headed to a ranch off Rock Springs Road or a newer place in Wekiva. Apopka’s mix of long-established lakefront homes and rapid new construction means we’ve seen just about every duct configuration Florida can throw at a house. That local familiarity matters because a crew that knows Apopka’s housing stock doesn’t waste time figuring out what they’re looking at. They get to work, price it in writing, and seal it by the book. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Apopka’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Apopka customers know what that track record means: we show up when we said we would, in uniform, with background-checked technicians who’ve already been introduced by name. Our 365-Day Done Right Promise covers every duct sealing job in writing. If the work 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 you hope someone remembers. It’s on the paperwork.
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 get on the schedule. When you’re dealing with musty air or a system that can’t keep up with Apopka’s humidity, that responsiveness matters.
We price every job in writing before any work starts. The number doesn’t move at the door. Our crews use professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, and we explain what we’re doing in plain terms while we’re doing it. The Garrison Code requires it.
Duct Repair in Apopka
Duct Repair in Apopka often starts with a homeowner noticing one room won’t cool, or the utility bill has climbed without explanation. In this market, the culprit is frequently decades-old flex duct that’s been abraded by sand from Lake Apopka’s sandy soil, or original galvanized runs in pre-1980s homes that have developed pinhole leaks and separated joints. We inspect with camera equipment, identify the damage, and quote the repair in writing before touching anything. A typical duct repair in Apopka runs $280 – $520 depending on accessibility and the extent of the damage.
Disconnected and Crushed Runs
We find crushed return trunks more often than you’d expect, especially in homes where ductwork was installed before modern load calculations. A crushed run doesn’t just reduce airflow; it creates negative pressure that pulls unconditioned attic air into the system. We rebuild or replace the damaged section, then seal all connections with mastic and mesh so the repair holds.
Pinhole Leaks in Metal Duct
Original galvanized duct in older Apopka homes near downtown develops pinholes from the inside out, accelerated by humidity and the slight acidity of condensate. Spot repair with mastic and reinforcement tape works for limited damage; more extensive deterioration means section replacement. We tell you which we’re recommending and why.
Air Duct Sealing in Apopka
Air Duct Sealing in Apopka is frequently the necessary follow-up to cleaning, especially in homes where sandy grit from the lake area has worn at flex duct seams for years. Sealing addresses the leaks that let conditioned air escape into the attic and unconditioned humid air get pulled into your living space. We use mastic, mesh reinforcement, and mechanical fasteners at every joint and penetration. A typical whole-system air duct sealing job in Apopka runs $480 – $890 for an average single-family home, with larger or more complex systems toward the upper end.
Mastic Sealing Versus Tape Alone
Foil tape fails in Florida attics. The adhesive degrades in heat, and the tape peels. We use water-based duct mastic, brushed or sprayed onto every seam, then reinforced with mesh at high-stress joints. It stays flexible, it bonds to metal and flex duct, and it doesn’t off-gas the way some solvent-based products do.
Sealing After Grit Damage
When sand from Lake Apopka’s soil has abraded flex duct connections near the air handler, cleaning alone won’t stop the leaks. We identify the worn sections, repair or replace as needed, then seal the entire system to prevent the same pattern from recurring. The goal is a sealed system that maintains static pressure where the designer intended it.
Trusted Brands We Service in Apopka
Our Apopka crews carry equipment and materials from Rotobrush, Nikro, and Abatement Technologies, and we stock filtration products from Honeywell, Aprilaire, and Guardsman. That means no waiting on parts for standard sealing and repair jobs. When we quote a job, we’re quoting with the actual materials we’ll use, not a generic placeholder that changes once we’re in your attic. For Apopka homeowners, that translates to faster turnaround and fewer return visits. We explain the equipment we’re using and what it does for your specific system, because The Garrison Standard requires that you understand what you’re paying for before you pay it.
Common Duct Sealing Problems We See in Apopka Homes
- Sandy grit abrading flex duct seams. Apopka’s sandy soil and proximity to Lake Apopka mean fine particles get drawn into outdoor units and circulated through duct runs. Over years, this grit wears through flex duct outer layers and loosens connections near the air handler. Standard cleaning removes the debris; sealing repairs the damage it caused.
- Original galvanized ducts with pinhole leaks. Homes built before the 1980s, common near downtown Apopka and around older lakefront properties, often have metal ductwork that has corroded from the inside. Humid attic air accelerates the process. We spot-seal where possible and recommend section replacement where the metal is too far gone.
- Disconnected joints in multi-turn flex runs. Newer homes in Wekiva and Wolf Lake sometimes use flexible duct with tight radius turns that stress connections. Thermal expansion and contraction in Florida’s heat cycles loosen these joints over time. We reseat and seal every connection we can access.
- Musty odor from organic matter near the lake. Homes within a few miles of Lake Apopka often show a distinct musty grit in ductwork, a combination of sand and decaying organic material. Cleaning removes it; sealing prevents reintroduction by eliminating the negative pressure that pulls attic and crawl space air into the system.
Pricing for Duct Sealing in Apopka, FL
A typical duct sealing job in Apopka runs $480 – $890 for a whole-house system, with duct repair added at $280 – $520 per issue area. What moves the number: the age and accessibility of your ductwork, whether we’re working in a tight attic or a spacious one, and whether we’re sealing existing material or replacing sections that have failed. Homes near Lake Apopka with grit-damaged flex duct often need more repair work than sealing alone. We inspect first, quote in writing, and start work only after you’ve approved the price. No per-vent gimmicks, no teaser rates that balloon once the van is in your driveway. Call (361) 326-5060 for a free estimate; we’ll give you an exact number after we see what we’re working with.
We Also Serve Cities Near Apopka
Our crews cover the full Orlando metro area, including Duct Sealing in Apopka and surrounding communities. We regularly work in Ocoee, Maitland, Altamonte Springs, and Winter Park, so if you’re just outside Apopka city limits, we’re still your closest qualified crew. Scheduling and dispatch are coordinated from our Orlando office, with local technicians assigned to minimize drive time and keep arrival windows reliable.
Serving Apopka, FL - Our Local Coverage Area
We’re based in the Apopka 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 Apopka
The musty smell usually means humid outside air is entering through leaks and condensing inside the duct system, promoting mold and mildew growth that cleaning alone can’t prevent. In Apopka, this is especially common in homes near Lake Apopka where organic matter and moisture get pulled into the system. Sealing the leaks stops the moisture intrusion. Call (361) 326-5060 for an inspection and written quote.
Fine sand from Apopka’s sandy soil gets drawn into outdoor HVAC units and circulated through duct runs, where it abrades flex duct seams and connections near the air handler. Over time this creates leaks that standard cleaning won’t fix; sealing with mastic and mesh reinforcement is required to restore system integrity. We see this pattern frequently in homes within a few miles of the lake. Call (361) 326-5060 for an inspection.
Yes. Older homes near downtown Apopka often have original galvanized metal duct or early flex duct that has corroded or separated at joints, requiring spot repair plus sealing. Newer homes in Wekiva and Wolf Lake typically have intact flex duct but may have crushed runs or loose connections from installation shortcuts, needing less repair and more targeted sealing. We assess what’s actually in your attic before quoting. Call (361) 326-5060 to schedule.
Proper duct sealing reduces humidity problems by preventing unconditioned, moisture-laden attic air from entering the system through leaks. In Apopka’s humid subtropical climate, this is often the difference between a system that maintains comfort and one that runs constantly without catching up. Sealing doesn’t replace dehumidification, but it makes your existing equipment work the way it was designed to. Call (361) 326-5060 for a free estimate.
Our technician arrives in the quoted window, in uniform, and inspects your ductwork with camera equipment to identify leaks, grit damage, and disconnected joints. We explain what we found, quote the repair and sealing work in writing, and begin only after you approve. Most whole-system sealing jobs take 4 – 6 hours, and we leave the work area clean. The 365-Day Done Right Promise covers everything we do. Call (361) 326-5060 to book.
We were called to a 1980s ranch near Lake Apopka where the homeowner complained of gritty dust on the registers every spring. Camera inspection showed sand-packed flex runs and a crushed return trunk; we used Rotobrush agitation tools under negative pressure with HEPA filtration, then sealed the disconnected runs with mastic and mesh. The homeowner noticed less dust and no more musty grit smell within a week.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Apopka since 2004.




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