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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Before
AfterFast, Reliable Duct Sealing Across Winter Garden
Duct sealing in Winter Garden typically runs $400 – $950 per system depending on accessibility, and most multi-system homes in our area need each air handler sealed separately. We serve Winter Garden from our Orlando dispatch office, with crews covering the full city from downtown bungalows to the newer master-planned communities along the western edge. Call us at (361) 326-5060 for a free estimate.
We’ve worked in Winter Garden long enough to know the difference between a 1920s downtown bungalow with retrofitted flex duct and a two-year-old build in Horizon West where three air handlers are crammed into attic chases so tight you can’t stand up. That difference matters for how we price, how we access, and how we document the work. Our Duct Sealing team treats every Winter Garden home as its own job, not a template.
Why Hollis Air Duct Cleaning Is Winter Garden’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our reputation in Winter Garden is built on showing up inside the window, pricing in writing before we touch anything, and leaving the site clean. The Garrison Standard applies to every job: written price, written guarantee, no moving targets.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Phones are answered by a live person 24 hours a day, 7 days a week – no voicemail loops, no callback queues.
We coordinate dispatch from our Orlando office and serve Winter Garden with local crews who understand the area’s housing stock: the aging flex duct in 1990s tract homes near Plant Street, the builder-warranty systems in Lakeshore, and the compressed attic runs in Horizon West’s two-story builds. That local knowledge saves time and prevents callbacks.
Every repair is covered by our 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit. We put that in writing on every job.
Duct Insulation in Winter Garden
Duct Insulation in Winter Garden addresses a problem our humid subtropical climate makes inevitable: cold air running through under-insulated ductwork sweats through summer and the occasional winter cold snap alike, feeding mold and microbial growth that homeowners smell before they see. We install closed-cell insulation and vapor barriers around sealed ductwork, particularly in attic runs where Winter Garden’s near-constant AC use keeps metal and flex surfaces below the dew point for months at a stretch. A typical duct insulation job in Winter Garden runs $350 – $800 per system depending on linear footage and attic accessibility.
When Insulation Must Follow Sealing
Sealing without insulating is half a job in Winter Garden. We see this in older homes near downtown where a homeowner had ducts sealed five years ago but never insulated, and now the mastic is deteriorating from condensation cycling. Our crews seal first, then insulate with products from Guardsman and Abatement Technologies rated for Florida humidity.
Attic Sweat in Low-Clearance Chases
Horizon West’s two-story homes on small lots often pack ductwork into 8-foot attic chases with minimal clearance. The roof deck sits close to the flex runs, insulation gets compressed during install, and the resulting thermal bridge produces exactly the condensation our climate encourages. We remove compromised insulation, seal every joint with mastic and mesh, then reinstall proper insulation without crushing it against the deck.
HVAC Duct Sealing in Winter Garden
HVAC Duct Sealing in Winter Garden means finding and closing the leaks that let conditioned air escape into attics, crawl spaces, and wall cavities before it reaches your rooms. We use a combination of mastic sealant, fiberglass mesh reinforcement, and mechanical collar repairs on flex-duct connections, tested with pressure gauges before and after so you have numbers, not guesses. A typical residential HVAC duct sealing job in Winter Garden costs $400 – $950 per air handler, with multi-system homes requiring separate work on each unit. We do not quote per-vent pricing; we quote per system, agreed in writing before work starts.
Pressure Testing Before and After
Every HVAC duct sealing job we do in Winter Garden starts with a static pressure test and ends with one. We measure total external static pressure at the air handler, then again after sealing. The difference is your proof. We write both numbers on your invoice, along with photos of the sealed joints.
Multi-System Homes and Per-System Pricing
Many Winter Garden homes, especially in Horizon West and Lakeshore, run two or three air handlers. Each system has its own supply and return ducts, its own leaks, its own pressure profile. We price and seal each separately because sealing one does nothing for the others. This is non-negotiable for honest work, and we explain why before we start.
Trusted Brands We Service in Winter Garden
We seal and repair ductwork connected to every major HVAC brand found in Winter Garden homes, and we stock local parts for fast turnaround when collars, plenums, or transition fittings need replacement. Our equipment roster includes Rotobrush rotary brush systems for mechanical cleaning before sealing, Nikro negative-air machines for containment during attic work, and filtration products from Honeywell and Aprilaire. For insulation and vapor barrier work, we use Guardsman and Abatement Technologies materials rated for the humidity and temperature swings our region delivers. You don’t wait on a parts order from out of state. We carry what Winter Garden homes need.
Common Duct Sealing Problems We See in Winter Garden Homes
- Kinked flex duct in Horizon West attic chases. Two-story homes on small lots pack long flex-duct runs into low-clearance spaces where the duct gets crushed against roof decking during builder install. The visible joints look fine, but the pinched run chokes airflow and creates back pressure that blows out other connections.
- Condensation damage from under-sealed supplies. Winter Garden’s humid subtropical climate means cold air through any gap in a supply duct sweats year-round. We see this in 1990s-era homes near Plant Street where original ductwork was never properly sealed, and in newer homes where builder-grade mastic has dried and cracked.
- Separated collars at register boots. The flexible connections between rigid trunk lines and ceiling registers pull loose over time, especially in homes with heavy summer AC cycling. We find this in both downtown bungalows with retrofitted systems and in master-planned communities where thermal expansion works on every joint.
- Builder-warranty documentation gaps. Homeowners in Lakeshore and Horizon West sometimes seal ducts before documenting original defects for their builder warranty, then find the underlying design problem returns and the warranty claim is void. We photograph everything and provide written pressure readings before we alter anything.
Pricing for Duct Sealing in Winter Garden, FL
A typical duct sealing job in Winter Garden runs $400 – $950 per air handler, with most homes falling in the $550 – $750 range for a single system with standard attic access. Multi-system homes pay per unit because each requires separate testing, access, and sealing. What moves the price: attic clearance (tight Horizon West chases take longer), the condition of existing flex duct (kinked or crushed runs need replacement, not just sealing), and whether insulation must be removed and replaced to reach the joints.
We give one flat price per system, agreed in writing before any work starts. No per-vent add-ons, no surprises at the door. We also provide before-and-after photos of your sealed joints and pressure test results, so you have documentation of work you cannot see inside your walls. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Winter Garden
Our crews cover Oakland, Windermere, Ocoee, and Minneola from the same Orlando dispatch base, with the same written pricing and 365-Day Done Right Promise on every job. If you’re in a bordering community and found this page searching for Duct Sealing in Winter Garden, we likely serve your area too – call to confirm.
Serving Winter Garden, FL - Our Local Coverage Area
We’re based in the Winter Garden 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 Winter Garden
Yes, we charge per air handler because each system has separate supply and return ducts that must be tested and sealed independently. Sealing one system does not fix leaks in another, and each requires its own access, pressure testing, and documentation. Call (361) 326-5060 for a per-system quote on your Winter Garden home – estimates are free.
Builder-grade sealing often uses thin mastic that cracks under thermal cycling, and many Winter Garden homes have under-insulated attic ducts that sweat even when joints are technically sealed. Our humid climate produces condensation that feeds mold inside ductwork. We reseal with proper mastic and mesh, then verify insulation is adequate for Florida’s dew points.
Demand dated photos of every joint, plenum, and flex-duct run; a written static pressure test from a certified technician; and any notes on kinked, crushed, or improperly supported ductwork. If you seal or alter the ducts before documenting original defects, you may void your warranty claim when the underlying problem resurfaces. We provide all of this documentation before we begin any sealing work on builder-warranty homes.
Yes, our crews work in the low-clearance attic chases found throughout Horizon West and similar Winter Garden developments. We use compact tools, portable lighting, and negative-air HEPA containment to manage dust in tight spaces. The work takes longer than standard attic access, which is reflected in your written per-system price before we start.
We measure total external static pressure before and after sealing, and we photograph every sealed joint with date stamps. The pressure drop proves reduced leakage; the photos prove where we worked. You get both on your invoice. If the numbers don’t improve, we don’t call the job done. Call (361) 326-5060 to schedule your Winter Garden duct sealing estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Winter Garden and central Florida communities since 2004.