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.
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AfterFast, Reliable Duct Sealing Across Leesburg
Leesburg homeowners dealing with weak airflow, hot rooms that never cool, or utility bills that climb every summer usually have leaky ductwork. We’re Hollis Air Duct Cleaning, and our crews handle Duct Sealing throughout Lake County, including the mobile home communities off Picciola Road, the older neighborhoods near downtown, and the lakefront homes along Venetian Gardens. Because so much of Leesburg’s housing stock is factory-built or manufactured homes with short flex runs, we approach sealing differently here than crews working Orlando’s stick-built subdivisions. Call us at (361) 326-5060 for a free estimate. We show up in the window we quoted, price the job in writing before we touch anything, and back it with our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Leesburg’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Leesburg crews understand the local housing profile: short-run flex duct under single-wides, attic-mounted fiberboard in the older downtown stock, and the particular headaches that come from dense live oak canopy debris. Our technicians are background-checked, uniformed, and expected to operate by The Garrison Code: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean.
Our 365-Day Done Right Promise covers every sealing job in writing. If the work fails within a year, we return 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, and scheduling is coordinated from our Miami office with local Leesburg dispatch.
Leesburg customers tell us the difference is accountability. They know who’s walking in before the truck arrives. The price they signed off on is the price on the invoice. And if something goes wrong six months later, the same crew comes back under the same promise.
HVAC Duct Sealing in Leesburg
HVAC Duct Sealing in Leesburg means closing the gaps, separations, and rodent damage that let conditioned air escape before it reaches your registers. In a typical Leesburg mobile home, we’re often sealing at the plenum connection, crossover collars between sections, and short flex runs under the unit, not chasing leaks along long trunk lines. In older downtown or lakefront homes, we’re working with attic or crawl-mounted galvanized or fiberboard ducts that have swollen, de-laminated, or separated at the seams after years of Florida humidity. A standard residential sealing job in Leesburg runs $450 – $850 for manufactured homes with accessible flex runs, and $650 – $1,200 for larger stick-built or lakefront homes with attic ductwork requiring more extensive mastic and mesh work.
Mobile Home Flex and Plenum Sealing
Factory-built homes in Leesburg use short flex duct and fiberboard plenums that vibrate loose at collars and connections. We seal these with duct mastic and reinforcing mesh, then verify with a pressure test. The alternative, tape alone, fails in six months under the vibration and heat load of year-round Florida cooling.
Attic and Crawl Duct Restoration
Older Leesburg homes with galvanized or fiberboard duct in attics or crawls need the substrate dried and stabilized before mastic will bond. We inspect for condensation damage, remove biological growth if present, and seal only after the surface is sound. Skipping this step is why cheap sealing jobs fail here.
Duct Repair in Leesburg
Duct Repair in Leesburg addresses damage too severe for sealing alone: rodent-chewed flex runs, collapsed sections from water intrusion, or separated plenums that have pulled free from the air handler. Because Leesburg’s hot, humid summers mean HVAC systems run nearly year-round, minor damage escalates fast. Condensation builds in attic ducts, especially after afternoon thunderstorms push water through roof and soffit leaks. Repair costs in Leesburg typically run $350 – $700 for localized flex replacement under a mobile home, and $800 – $1,500 for attic trunk line repair or plenum replacement in older homes with deteriorated fiberboard.
Rodent Damage and Flex Replacement
The live oak canopy in Leesburg mobile home parks shelters rodents that chew flex duct for nesting material. We replace damaged sections with new insulated flex, seal entry points where accessible, and secure the new run to prevent recurrence. Camera inspection confirms we found all the damage, not just the visible tear.
Water-Damaged Duct Restoration
Attic ducts in downtown and lakefront Leesburg homes often show swelling, delamination, or collapse from years of humidity and storm intrusion. We remove compromised sections, address the moisture source if accessible, and install replacement duct rated for the application. Sealing over wet substrate is a temporary fix we don’t do.
Trusted Brands We Service in Leesburg
We stock parts and sealing materials from Aprilaire, Abatement Technologies, and Guardsman for Leesburg jobs, which means faster turnaround without waiting on shipped components. Our equipment roster includes Rotobrush rotary brush systems for agitation cleaning before sealing, and Nikro negative-air machines for containment during repair work. For manufactured homes with limited parts availability, keeping common flex diameters, plenum collars, and mastic compounds on the truck means we finish the same day rather than scheduling a return trip. Leesburg customers aren’t left waiting because a crossover fitting had to come from a warehouse in Orlando.
Common Duct Sealing Problems We See in Leesburg Homes
- Separated crossover collars under single-wides. Vibration from the air handler and road flex in mobile home parks shakes plenum connections loose. Sealing only the visible joints misses the collar separation, so we pressure-test after every repair to catch what eyeballing can’t.
- Rodent-chewed flex in oak-shaded mobile home communities. The dense live oak canopy around Leesburg manufactured housing shelters squirrels and roof rats that access under-home crawl spaces. We regularly find chewed flex runs with nesting debris, and sealing without replacing the damaged section wastes the homeowner’s money.
- Humidity-swollen fiberboard in older downtown and lakefront homes. Attic-mounted fiberboard duct in Leesburg’s pre-1980 housing absorbs moisture from ambient humidity and storm leaks, causing the facing to delaminate and the core to swell. Mastic won’t bond to this substrate, so we remove and replace deteriorated sections before sealing.
- Shared dryer vent stacks in Leesburg apartments and condos. Multi-unit buildings with stacked laundry closets often have lint accumulation past individual unit connections. Sealing one unit’s duct collar without addressing the stack’s lint pathway leaves fire risk and backdraft potential unresolved.
Pricing for Duct Sealing in Leesburg, FL
Duct sealing in Leesburg runs $450 – $850 for typical manufactured and mobile homes with accessible flex runs and plenum work, and $650 – $1,200 for larger stick-built or lakefront homes with attic duct systems requiring extensive mastic, mesh reinforcement, and pressure verification. Duct repair, when replacement is needed, adds $350 – $700 for localized flex work or $800 – $1,500 for attic trunk line and plenum replacement.
What moves the price: accessibility (crawl space clearance, attic temperature, whether we can park the truck within hose reach), extent of damage, and whether substrate drying or biological growth removal is needed before sealing. We inspect, write the price, and get your signature before any work starts. The number doesn’t change at the door. Call (361) 326-5060 for a free estimate, or schedule through our Miami office for Leesburg dispatch.
We Also Serve Cities Near Leesburg
Our crews travel throughout Lake County for Duct Sealing in Leesburg and surrounding areas, including Fruitland Park, Lady Lake, Tavares, and Eustis. Each job carries the same written price guarantee, the same 365-Day Done Right Promise, and the same expectation that our technicians arrive uniformed, background-checked, and ready to work by The Garrison Standard.
Serving Leesburg, FL - Our Local Coverage Area
We’re based in the Leesburg 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 Leesburg
Leesburg mobile homes use short flex runs and plenum connections rather than long galvanized trunk lines, so the labor is concentrated in tight crawl spaces with limited access rather than spread across accessible attic ductwork. The scope is smaller in linear feet but higher in difficulty, which is why manufactured home sealing runs $450 – $850 compared to $650 – $1,200 for larger stick-built homes with attic systems. Call (361) 326-5060 and we’ll inspect your specific setup for an exact quote.
Yes, we regularly work in Leesburg multi-unit buildings with limited parking and interior access, and we coordinate with property management for shared system work when needed. Our negative-air machines and rotary tools are selected for buildings with tight turns and small utility closets. For shared dryer vent stacks, we inspect the full stack rather than sealing one unit’s connection in isolation.
Sealing helps only if we first replace rodent-damaged flex and address how they’re accessing the crawl space. In one of the mobile home communities off Picciola Road, we pulled a run of short flex duct under a single-wide that had a rodent-chewed section and a separated crossover collar at the air handler. After a camera inspection and agitation-tool pass, we sealed the plenum seams and the damaged flex with mastic and mesh, then verified with a blower motor amp check and a pressure test. The homeowner noticed stronger airflow at the registers and less oak pollen smell in the return. Sealing without replacing the chewed section would have failed in weeks.
Live oak catkins and pollen in Leesburg’s spring season accumulate in return ducts and on flex surfaces, and if your ducts are already leaky, that debris pulls into the system faster and deposits deeper. We recommend sealing before peak pollen season to prevent infiltration, and we inspect returns for accumulation during our pre-sealing assessment. If your registers blow visible debris when the system kicks on, you likely have both a leak path and a buildup problem.
Shared stacks require inspecting the full vertical run for lint accumulation past individual unit connections, then sealing each unit’s collar and addressing any stack damage or separation. Sealing only your unit’s connection leaves lint pathways and backdraft risk unresolved. We coordinate with building management for access and document our findings for the property’s maintenance records. Call (361) 326-5060 to discuss your building’s specific stack configuration.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Leesburg since 2004 as part of the Garrison Partners family.