Duct Sealing in Ojus - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across Ojus

Homes in Ojus run their air conditioning hard, and when the ductwork leaks, you’re paying to cool your attic or crawl space instead of your living room. We’re the Duct Sealing in Ojus crew that shows up in uniform, prices the job in writing before touching anything, and stands behind the work for a full year. Our technicians know the area around NE 199th Street, West Dixie Highway, and the older ranch-style neighborhoods where slab-on-grade construction and original 1950s – 70s ductwork create the same problems again and again. Calls to (361) 326-5060 reach a live person, not a voicemail loop, and we dispatch from our Miami office so we’re never far from Ojus.

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Why Hollis Air Duct Cleaning Is Ojus’s Preferred Duct Sealing Company

We’ve been doing this since 2004 as part of the Garrison Partners family, and in Ojus that means understanding what happens to galvanized steel and early flex duct after decades in tropical humidity - it’s why we also offer Ojus Dryer Vent Cleaning for the same homes facing lint buildup in humid conditions. Our technicians follow The Garrison Code on every job: arrive inside the quoted window, price in writing, complete the work by the book, leave the site clean. The 365-Day Done Right Promise covers every repair in writing, if the work fails within a year, we return and make it right at no charge, including a free second visit. Background-checked, uniformed technicians mean you know who’s walking into your home before they arrive. And the price we write down before any work starts is the price you pay, no exceptions.

Duct Sealing Services in Ojus

Duct Sealing Services in Ojus address a specific problem: the original galvanized steel trunk lines and early flexible branch runs in homes built from the 1950s through 1970s have joints that loosen, tape that dries out, and connections that separate under decades of vibration and humidity cycling. A typical whole-house duct sealing job in Ojus runs $850 – $1,800 depending on system size, accessibility, and whether we need to reconnect crushed or disconnected runs before sealing. We use mastic sealant and mechanical fasteners, not duct tape, because tape fails in Ojus’s humidity within a season or two.

Leak Detection and Airflow Testing

Before sealing anything, we pressurize the system and measure airflow loss at the air handler. In Ojus homes with slab-on-grade construction, we commonly find return leaks pulling humid air from crawl spaces or wall cavities, not just the usual supply-side gaps. That moisture pathway is why sealing matters here more than in drier inland markets.

Galvanized Trunk and Flex Run Repair

Original galvanized trunks in Ojus often have open seams at the elbows and transitions where the sheet metal was never properly sealed at installation. We clean the joint, apply mastic, and mechanically secure it. For crushed or disconnected flex runs, we reconnect or replace the damaged section before sealing, because sealing a collapsed duct is pointless.

Duct Insulation in Ojus

Duct Insulation in Ojus is usually needed because the original fiberglass wrap has absorbed moisture, compacted, or fallen away entirely, leaving bare metal duct sweating in the humid attic air. A typical duct insulation replacement in Ojus runs $600 – $1,400 for a standard single-system home, depending on linear footage and whether we’re working around existing duct sealing repairs. We use professional-grade insulation products from Guardsman and Abatement Technologies, not the hardware-store wrap that compresses and loses R-value within a year in this climate.

Condensation Control in High Humidity

Bare ductwork in an Ojus attic sweats constantly from May through October. That condensation drips onto ceiling drywall, breeds mold on framing members, and saturates any remaining insulation. We install vapor-barrier-wrapped insulation with proper sealing at all seams, so the cold air stays inside the duct and the humid air stays outside.

Insulation Replacement After Water Damage

In Ojus, heavy rains and the high water table mean slab seepage and roof leaks find their way into attics and crawl spaces. Water-damaged insulation can’t be dried in place, it harbors mold and loses thermal performance. We remove the saturated material, treat the duct surface, then install new insulation as part of a complete sealing and protection package.

Trusted Brands We Service in Ojus

Our Duct Sealing crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus filtration and insulation products from Honeywell, Aprilaire, and Guardsman. For Ojus homeowners, that means we stock the mastics, mechanical fasteners, and insulation wraps that fit your older system’s dimensions without waiting on special orders. We don’t show up with hardware-store tape and hope for the best. The right material for galvanized steel in tropical humidity is different from what’s used on modern flex-duct systems, and our techs know which product goes where.

Common Duct Sealing Problems We See in Ojus Homes

• Original galvanized joints that never held a seal. The sheet metal trunks in 1950s – 70s Ojus homes were often assembled with minimal sealant at the factory joints. Decades of thermal expansion and corrosion have opened gaps that pull humid outside air directly into the supply stream.
• Crushed flex runs in attic or crawl spaces. Early flexible duct in Ojus homes was not built to last sixty years. We find it flattened by storage items, chewed by rodents, or water-damaged from roof leaks, all of which block airflow and create pressure imbalances that worsen leaks elsewhere.
• Moisture intrusion through slab cracks. After heavy rain, Ojus homes with slab-on-grade construction often get water seepage that enters ductwork through cracks or penetrations in the slab. This degrades insulation, promotes mold, and makes any sealant application temporary unless the moisture source is identified.
• Disconnected returns pulling attic air. In older Ojus homes, the return plenum or duct connections have separated, so the system draws hot, humid attic air instead of conditioned return air. This overloads the cooling coil and raises humidity throughout the house.

Pricing for Duct Sealing in Ojus, FL

We Also Serve Cities Near Ojus

Our crews work throughout South Florida and across the state, including Ojus neighbors in Jacksonville, Miami, Tampa, and Orlando. Each location operates independently under The Garrison Standard with the same written pricing, background-checked technicians, and 365-Day Done Right Promise.

FAQs About Duct Sealing in Ojus