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 Shady Hills
Duct sealing in Shady Hills typically costs $450 – $1,200 for a whole-home system, and every job starts with a camera inspection so we know exactly where your air is leaking before we quote. We’re the Shady Hills crew from Hollis Air Duct Cleaning, and we’ve been driving these rural Pasco County roads since 2004. Our dispatch runs through the Miami office, but our technicians live and work this territory – from the ranch properties off Hays Road to the manufactured home communities near Moon Lake. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Shady Hills’s Preferred Duct Sealing Company
We’ve built our reputation in Shady Hills on showing up when we said we would, pricing in writing before we touch anything, and leaving the site clean. That’s The Garrison Standard, and it’s how every Hollis location operates – independently owned, independently accountable.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. And when you call (361) 326-5060, a live person answers – 24 hours a day, seven days a week. No voicemail loops, no callback queues, no waiting until Monday for a scheduling question.
Every repair we make carries our 365-Day Done Right Promise in writing. If the work fails within a year, we come back and make it right at no charge, including a free second visit. In a rural community like Shady Hills where service options are limited, that written guarantee matters.
We know this area’s housing stock. The 1980s ranch homes with sagging flex duct. The manufactured homes with original fiberboard trunks that Florida humidity has been eating for decades. The properties on unpaved lots where every passing truck pulls sand into the returns. That local knowledge changes how we approach every job.
Duct Sealing Services in Shady Hills
Duct Sealing Services in Shady Hills start with a camera inspection because in this environment, sealing blind is worse than not sealing at all. We need to see where the leaks are, what’s causing them, and whether debris or biofilm needs source removal first. A typical whole-home duct sealing job in Shady Hills runs $450 – $1,200 depending on system size, accessibility, and whether we’re working with metal, flex, or fiberboard ductwork.
Leak Detection and Mapping
We pressurize your duct system and use smoke pencils and infrared cameras to find every leak point. In Shady Hills homes, we regularly find separations at the plenum where flex duct has sagged under its own weight, and gaps where fiberboard trunks have delaminated from years of humidity cycling. We mark every location before we quote, so you see what we see.
Mastic Sealing and Mechanical Fastening
We seal with water-based duct mastic, not tape that dries and falls off in Florida heat. For flex duct separations, we use mechanical straps and collars, then mastic over the joint. This holds against the constant vibration and pressure changes of a system that runs eight months straight in Shady Hills.
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.
Duct Insulation in Shady Hills
Duct Insulation in Shady Hills addresses a problem most homeowners don’t notice until their summer electric bill arrives. In this climate, uninsulated or poorly insulated ductwork in attics or crawl spaces acts like a radiator in reverse – dumping cooled air into 140-degree attic space before it ever reaches your living room. A typical duct insulation job in Shady Hills runs $600 – $1,800 depending on linear footage and whether we’re wrapping existing ducts or replacing degraded insulation.
R-Value Assessment and Upgrading
Florida code now calls for R-6 or better on ductwork, but much of the flex installed in Shady Hills homes from the 1980s through the early 2000s carries R-4 or less. We measure what you have, photograph the condition, and quote replacement wrapping with formaldehyde-free fiberglass or closed-cell foam where appropriate. The difference in supply air temperature is usually 8 – 12 degrees immediately.
Vapor Barrier Restoration
Humidity is the enemy here. When the outer vapor barrier on flex duct tears or delaminates, fiberglass insulation soaks up attic moisture like a sponge. The duct loses efficiency and the insulation becomes a mold reservoir. We strip compromised sections, seal the underlying duct, and install new wrapped runs with intact barriers.
Trusted Brands We Service in Shady Hills
We carry equipment and parts from Rotobrush, Nikro, Aprilaire, and Abatement Technologies – the same tools commercial crews use, maintained to manufacturer spec. For filtration upgrades after sealing work, we stock Honeywell and Guardsman products sized to your system. Because our Miami office coordinates parts inventory for South Florida operations, most Shady Hills jobs don’t wait on shipping. If your sealed system needs a filtration upgrade or a static-pressure adjustment, we handle it on the same visit.
Common Duct Sealing Problems We See in Shady Hills Homes
- Unsealed flex runs sagging and tearing over unpaved lots. The vibration from HVAC units on slab or pier foundations, combined with sand infiltration, wears through flex duct outer jackets. Leaks form at the low points where condensation pools, and sand bypasses the filter to load the supply side.
- Fiberboard duct trunks degrading in Florida humidity. Older manufactured and ranch homes in Shady Hills still have original fiberboard trunks that delaminate, shed fibers into the airstream, and create leak paths at every joint. MERV-rated filters can’t stop fibers that originate downstream.
- Sealing over debris without source removal first. Some crews skip the cleaning step and apply sealant directly over dust and biofilm. The sealant traps the debris, reduces effective duct diameter, and the system loses airflow instead of gaining efficiency. We always inspect and clean before we seal.
- Well-water humidifiers creating mineral dust and biofilm inside ductwork. Because Shady Hills relies on private wells, not municipal water, whole-house humidifiers feed hard, sometimes sulfurous water that leaves scale deposits and supports bacterial growth on duct walls. Sealing without addressing this buildup seals the problem inside.
Pricing for Duct Sealing in Shady Hills, FL
A typical whole-home duct sealing in Shady Hills runs $450 – $1,200. Duct insulation runs $600 – $1,800. What moves you within that range: system size (single-zone manufactured home versus multi-zone ranch), duct material (metal is straightforward; fiberboard often needs partial replacement), and accessibility (crawl space work costs more than attic access).
We do not quote per-vent or per-linear-foot teaser prices that balloon once we’re inside. We give one flat price per system, agreed in writing before work starts. That price includes the camera inspection, source removal if needed, sealing or insulation work, and post-job verification. No add-ons at the door.
Call (361) 326-5060 for a free estimate. We’ll ask about your home’s age, duct material if you know it, and any symptoms you’ve noticed – uneven cooling, dust on registers, high humidity, spiking bills. That conversation lets us bracket your likely cost before we drive out.
We Also Serve Cities Near Shady Hills
Hollis Air Duct Cleaning dispatches crews throughout the region. If you’re outside Shady Hills proper, we also handle Duct Sealing in Jacksonville, Miami, Tampa, and Orlando. Scheduling and parts coordination run through our Miami office, but every crew is local to its territory and held to The Garrison Standard.
Serving Shady Hills, FL - Our Local Coverage Area
We’re based in the Shady Hills 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 Shady Hills
Every 2 – 3 years for most Shady Hills properties, not the standard 3 – 5 year cycle. The combination of unpaved lots, constant sand intrusion, and near-continuous April – October runtime loads ducts faster than in paved subdivisions. Call (361) 326-5060 and we’ll assess your specific conditions.
Well water in Shady Hills is often hard and sometimes sulfurous, and when it feeds a whole-house humidifier or is used for cleaning, it leaves mineral dust and biofilm inside ductwork. Sealing leaks prevents that contamination from spreading and keeps humidifier output where it belongs. We inspect for this buildup during our camera survey.
Yes, but fiberboard often requires partial replacement rather than simple sealing. We evaluate whether the trunk has delaminated or shed fibers – if so, we section in metal or insulated flex replacements, then seal the new joints. We won’t seal over degraded fiberboard that will continue shedding into your air.
It reduces the conditioned air lost to attics, crawl spaces, and wall cavities, which means your system reaches setpoint faster and cycles less. In Shady Hills’s eight-month cooling season, that translates to lower kWh consumption and less wear on compressor and blower components. Most homeowners see utility bill reductions of 15 – 30 percent.
Yes. We regularly seal ductwork in detached workshops, barn conversions, and guest houses on rural Shady Hills properties. These systems often have exposed flex runs and minimal insulation that deteriorate faster than main-house ductwork. We quote them as separate systems with their own flat price.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Shady Hills since 2004.