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
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Before
AfterFast, Reliable Duct Sealing Across Groveland
We seal ducts in Groveland homes from the newer subdivisions off Wilson Lake Parkway to the older neighborhoods around historic downtown. Our crews run scheduled calls throughout South Lake County, dispatching from our Miami coordination office with arrival windows we honor. If you’re in Groveland and your registers blow dust, your rooms won’t hold temperature, or your energy bill climbed after you bought new, call us at (361) 326-5060. We’ll give you a written price before any work starts, and every seal is covered by our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Groveland’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Duct Sealing team has handled the specific problems Groveland’s housing stock creates. This isn’t a market where we guess at the cause of a leak.
Groveland’s master-planned communities went up fast during the 2000s-to-present buildout, and we’ve sealed enough of those systems to know the failure pattern by heart: plenum joints that never saw mastic, boot-to-floor gaps hidden behind drywall returns, flex duct stapled in place but never sealed at the trunk. Our technicians arrive uniformed, background-checked, and equipped with professional-grade tools from Rotobrush and Nikro. The price is written down before we touch anything. If the seal fails within a year, we come back and make it right at no charge, including a free second visit. That’s The Garrison Standard, and it’s how we operate on every Groveland job.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues.
Air Duct Sealing in Groveland
Air Duct Sealing in Groveland addresses a problem most homeowners don’t discover until they’ve lived with it for months: conditioned air leaking out of the duct system before it reaches the rooms, and unconditioned attic or crawlspace air getting pulled back in. In Groveland’s newer subdivisions, the leaks are almost never punctures in the flex duct itself. They’re unsealed joints at the plenum, trunk connections, and floor boots that the builder never finished with mastic or foil tape.
We see this pattern repeatedly in Groveland’s 2000s-and-later construction. The flex duct looks intact, but the system loses 20 to 30 percent of its airflow through gaps you can’t see without pulling registers or accessing the attic. That means higher electric bills, rooms that won’t cool evenly, and extra strain on your compressor during Groveland’s long, humid summers.
A typical Air Duct Sealing job in Groveland runs $450 – $850 for a standard single-system home, depending on how many joints need attention and whether we need to open drywall returns to reach them. We always inspect first with a camera, price it in writing, then seal.
When Sealing Comes Before Cleaning
In Groveland’s new builds, we often find construction debris still inside the ducts at the first service call. Sealing over that debris traps it. We clean first, using negative-air HEPA filtration and agitation tools, then seal the joints so the system stays clean.
The Humidity Factor
Central Florida’s year-round humidity means any leak that pulls attic air also pulls moisture. In Groveland, that moisture condenses on cooler duct surfaces and breeds the musty smell homeowners report around registers by mid-summer.
Duct Sealing Services in Groveland
Duct Sealing Services in Groveland cover the full range of joint and penetration failures we find in local homes, from builder-grade oversights in new construction to deterioration in older flexible duct systems around historic downtown. Our process starts with a camera inspection to locate every leak, followed by written pricing, then mechanical cleaning of the joint area and application of mastic sealant or foil tape as appropriate.
For Groveland’s newer homes, our Duct Sealing Services focus on the plenum-to-trunk and boot-to-subfloor connections that builders left unfinished. In older Groveland homes, we often find flex duct that has sagged, torn at contact points, or separated from collars entirely. The approach differs, but the standard doesn’t: written price first, seal by the book, site left clean.
Most Duct Sealing Services in Groveland fall between $450 – $850 for residential single-system work. Multi-system homes or jobs requiring drywall access run higher, and we’ll tell you that before we start.
Camera Inspection and Documentation
We run a borescope through your supply and return lines and show you what we find. In Groveland, that usually means video of unsealed plenum joints or construction debris still clinging to the duct liner from the build.
Mastic Application Standards
We use UL-181 rated mastic and foil tape, not hardware-store duct tape. The Garrison Code requires that every sealed joint be accessible for future inspection and that we never bury a connection behind drywall without documenting its location.
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 Groveland
Our equipment roster includes professional-grade tools from Rotobrush, Nikro, and Abatement Technologies, plus filtration products from Honeywell, Aprilaire, and Guardsman. We stock common sealing materials and boot fittings for the duct sizes used in Groveland’s major subdivisions, so most jobs don’t wait on parts. When a Groveland homeowner needs a seal and a filter upgrade together, we can handle both in one scheduled visit with one written price.
Common Duct Sealing Problems We See in Groveland Homes
- Unsealed builder joints in new construction. Groveland’s subdivisions went up fast, and the plenum-to-trunk connections in many homes were stapled or zip-tied but never mastic-sealed. The leaks are hidden behind drywall returns, so homeowners don’t find them until the dust and musty smells start.
- Construction debris trapped in the duct liner. Drywall dust and joint compound left in Groveland’s new-build ducts clings to the flexible liner. Sealing over it without cleaning first locks the debris in place and can restrict airflow worse than the original leak.
- Moisture wicking through unsealed boot penetrations. Groveland’s high water table and rainy-season crawlspace flooding mean humidity finds any gap between the floor boot and the subfloor. By July, that minor leak becomes a mold ring around the register.
- Aging flex duct in pre-2000s homes. Around Groveland’s historic downtown and older neighborhoods, original flexible duct has sagged, torn at support contacts, or pulled off collars. The material itself needs replacement, not just sealing, and we’ll tell you straight if that’s the case.
Pricing for Duct Sealing in Groveland, FL
Duct sealing in Groveland typically costs $450 – $850 for a standard single-system residential job. What moves the price: how many joints need sealing, whether we need to open drywall returns to access them, and whether the ducts require cleaning before we can seal effectively. Multi-system homes or jobs with extensive drywall repair run toward the upper end or beyond, and we’ll quote that specifically.
We do not quote per-vent teaser prices. We do not add charges once the technician is inside. The price is written down before work starts, and it does not move at the door. Every Groveland job includes a free estimate, and we bring before-and-after photos of your own ducts so you can see what was done.
Call (361) 326-5060 for a written estimate at no charge.
We Also Serve Cities Near Groveland
Our crews schedule throughout South Lake County, including Mascotte, Clermont, Minneola, and Oakland. Each job runs under The Garrison Standard: arrive inside the window, price in writing, complete by the book, leave the site clean. If you’re in a neighboring city and found this page, the same process and the same 365-Day Done Right Promise apply.
Serving Groveland, FL - Our Local Coverage Area
We’re based in the Groveland 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 Groveland
Because the builder likely never sealed the plenum-to-trunk or boot-to-floor joints with mastic or foil tape. In Groveland’s fast-built subdivisions, flex duct gets stapled and zip-tied into place, but the final sealing step is often skipped behind drywall returns you can’t see. Call (361) 326-5060 for a camera inspection and written estimate.
Florida building code requires duct systems to be sealed, but enforcement varies by inspector and phase of construction. Most Groveland homeowners discover the gap between code and reality only after move-in, when dust and musty smells appear. We document what we find with video and can provide a report for warranty discussions with your builder.
Leaks show up as uneven temperatures between rooms, dust blowing from registers right after cleaning, or energy bills that spike without explanation. Dirty ducts produce odors and visible debris but don’t typically create hot spots. We run a camera inspection to tell you which problem you actually have before quoting any work.
Yes, significantly. Sealing stops your system from pulling humid attic or crawlspace air into the return, which is the main source of musty odors around Groveland registers during rainy season. In Groveland’s climate, a sealed duct system runs drier and reduces condensation that breeds mold.
Clean first, seal second. Construction debris left in Groveland’s new-build ducts will be trapped permanently if you seal over it. We remove the debris with negative-air HEPA filtration and agitation tools, then seal the joints so the system stays clean. Call (361) 326-5060 to schedule both in one visit with one written price.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Groveland since 2004.