Fast, Reliable Duct Repair & Sealing Across North Palm Beach
Duct repair and sealing in North Palm Beach typically costs between $250 and $850 depending on the scope, with most flex duct repairs and mastic sealing jobs completed in a single visit. If your home is losing cooled air through corroded fittings or collapsed flex duct in the attic, we’ll diagnose it with a camera inspection and show you exactly what needs fixing before any work begins. Call (844) 685-6342 - a live person answers, 24 hours a day.
We’ve been driving our trucks to North Palm Beach since 1984, long before the village center redevelopment and back when Prosperity Farms Road was the main corridor through town. Our technicians know the concrete-block, slab-on-grade homes built in the 1960s and early 1970s - the ones with original ductwork sweating through another humid summer in a hot attic. We’re usually there within the hour for North Palm Beach calls, and we carry the parts to finish most repairs that same morning.
Why Bellows Air Duct & Vent Co. Is North Palm Beach’s Preferred Duct Repair & Sealing Company
North Palm Beach homeowners have called us back for 42 years because we don’t bait-and-switch. Our Duct Repair & Sealing team gives you one honest price before a single tool is lifted, and that number matches the invoice. No scare tactics, no coupon traps.
Our 90-Day Done Right Promise is stamped on every job in writing. If the repair isn’t right, we return at no charge - no paperwork, no arguing. That’s backed by our K.E.Y.S. values code, the same standard Ray Castillo established when he founded Bellows in 1984.
Every repair gets a camera inspection before and after. You see the corroded fitting or separated flex liner on screen. You see the sealed, airtight result when we’re done. Background-checked, uniformed technicians. A live person on the phone, always. That’s the square deal North Palm Beach homeowners expect.
Our Duct Repair & Sealing Services in North Palm Beach
Flex Duct Repair
Flex duct fails differently in North Palm Beach than anywhere else in Palm Beach County. The village’s unique position - Atlantic Ocean to the east, Intracoastal Waterway to the west - means salt-laden, moisture-saturated air hits your home from both directions simultaneously. In the hot attics of 1960s-era concrete-block homes, that humidity expands and contracts flex duct inner liners until they collapse or separate at joints. We see this constantly on the older canal-front streets off Prosperity Farms Road, where afternoon heat from the west meets salt humidity pushed inland from the Intracoastal. A failure pattern rare just a few miles away in Palm Beach Gardens.
Our flex duct repair replaces degraded liners with higher-grade insulated flex duct rated for humid attic environments. We secure all connections with metal straps - not tape that’ll peel in the heat - and verify airflow with a camera before we leave.

Duct Sealing
Leaky ducts in North Palm Beach don’t just waste money. They pull humid, salt-tinged attic air into your living space, accelerating mold growth and corroding what metal remains. Our duct sealing targets every joint, seam, and penetration with professional-grade materials that withstand this environment. We pressure-test the system to confirm we’ve stopped the losses. Most North Palm Beach homes we seal show 20-30% improvement in airflow at the registers immediately.

Mastic Sealant
Standard duct tape fails fast in North Palm Beach attics. The heat, humidity, and airborne chlorides from dual waterfront exposure degrade adhesives that hold up fine inland. We apply mastic sealant - a thick, fiber-reinforced compound that brushes onto joints and hardens into a permanent, flexible bond. It’s the only sealing method we trust for metal duct fittings in this climate, and it’s what serious HVAC contractors specify for coastal Florida installations.

Metal Duct Repair
Original metal ductwork in North Palm Beach’s older homes has been cycling humid, salt-tinged air for 50-plus years. Corrosion at seams and fittings is common. We cut out degraded sections, fabricate replacements on-site, and seal with mastic. Where metal has thinned beyond repair, we transition to modern insulated flex or rigid duct as appropriate for the run.

Duct Insulation
Uninsulated or degraded duct insulation in a North Palm Beach attic is a mold incubator. We install fresh insulation vapor-sealed against humidity intrusion, keeping cooled air cold and preventing condensation on duct surfaces. This matters especially in homes near the water where HVAC runs 10-12 months a year.

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 North Palm Beach
We stock parts and specify equipment from Nikro, Honeywell, and Aprilaire - the same brands serious HVAC contractors use in coastal Florida. For North Palm Beach homeowners, that means no waiting on special orders for most repairs. Our trucks carry insulated flex duct, mastic compound, metal fittings, and replacement dampers sized for the residential systems common in 33408. When we find a Honeywell zone damper corroded shut or an Aprilaire media filter housing leaking air, we fix it with matching components, not universal-fit substitutions. Fast turnaround, done right, backed in writing for 90 days.
Common Duct Repair & Sealing Problems We See in North Palm Beach Homes
- Flex duct collapse on canal-front streets. The constant moisture-expansion cycling in attics facing afternoon heat and Intracoastal humidity separates inner liners from insulation. We replaced a degraded liner on a canal-front home off Prosperity Farms Road with higher-grade insulated flex duct, sealed all connections with mastic, and ensured the system was airtight for the homeowner’s custom-built residence.
- Corroded metal fittings from dual-waterfront salt exposure. Airborne chlorides from the Atlantic and Intracoastal degrade duct sealants and metal components faster than in any purely inland Palm Beach County location. We remove corroded sections and seal with mastic, which resists salt-air degradation.
- Mold colonization in original 1960s duct systems. Concrete-block slab homes with ductwork in hot, humid attics provide perpetual damp conditions. We repair leaks, seal the system, and can sanitize duct interiors to address active growth.
- Failed tape seals in attic heat. Adhesive tapes applied years ago have cooked and peeled. We strip old tape and apply mastic for a permanent seal that survives North Palm Beach’s attic temperatures.
Pricing for Duct Repair & Sealing in North Palm Beach, FL
We don’t quote blind over the phone, but we’ve done enough work in 33408 to give you real numbers. A typical flex duct section replacement in North Palm Beach runs $280-$450. Mastic sealing of an average single-story home’s duct system runs $350-$650. Metal duct repair with section replacement runs $400-$850 depending on accessibility and material. Duct insulation refresh for an attic trunk line runs $200-$400.
What moves the price: how many sections need attention, whether we’re working in a tight 1960s attic or a newer home with better access, and whether we find secondary issues like corroded fittings or mold during our camera inspection. We show you everything on screen before we quote. The price we give is the price on the invoice.
Current standing offers: $50 Off Any Repair Over $250. Free Second Opinion on Any Written Estimate. Permanent 5% Senior and Veteran discount. Call (844) 685-6342 for your free estimate.
We Also Serve Cities Near North Palm Beach
Our trucks cover North Palm Beach and the surrounding communities - Lake Park to the north, Riviera Beach to the south, Palm Beach Gardens inland to the west, and Palm Beach across the bridge. Same live-answer phone, same camera-verified repairs, same 90-Day Done Right Promise.
Serving North Palm Beach, FL - Our Local Coverage Area
We’re based in the North Palm Beach 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 - Duct Repair & Sealing in North Palm Beach
Canal-front homes off Prosperity Farms Road and similar streets face moisture-expansion cycling unique to this area - afternoon heat from the west combined with salt humidity pushed in from the Intracoastal Waterway. That dual exposure separates flex duct inner liners at joints, a failure pattern we rarely see just a few miles inland in Palm Beach Gardens where homes have only one water source. If you’re noticing weak airflow in canal-front rooms, call (844) 685-6342 - we’ll camera-inspect and give you a straight answer.
Airborne chlorides from North Palm Beach’s dual waterfront exposure corrode metal duct fittings and degrade standard duct sealants faster than in any purely inland Palm Beach County location. We use mastic sealant and corrosion-resistant fittings specifically because tape and standard hardware fail prematurely here. Our repairs are built for this environment.
Flex duct liner replacement and mastic resealing of original metal fittings. The 1960s-era concrete-block slab homes that dominate North Palm Beach have ductwork in hot, humid attics where 50-plus years of salt-tinged airflow takes its toll. Most repairs we complete in a single visit.
Yes, significantly. Sealed ducts stop pulling humid, potentially mold-laden attic air into your living space. In North Palm Beach’s subtropical climate where HVAC runs 10-12 months a year, airtight ductwork reduces the moisture load your system must handle and limits mold colonization pathways. We verify seal integrity with pressure testing and camera inspection.
New equipment connected to old, leaky ductwork performs poorly and wears faster. We’ve sealed ducts in North Palm Beach homes with 3-year-old condensers that were still losing 25% of cooled air through attic leaks. The equipment is only as good as the distribution system behind it. Call (844) 685-6342 for a camera inspection - estimates are free.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving North Palm Beach since 1984.