Fast, Reliable Duct Repair & Sealing Across Riviera Beach
Duct repair and sealing in Riviera Beach typically costs $280-$650 for most residential jobs, with same-day service available when you call before noon. We answer our phones live 24 hours a day at (844) 685-6342, and our technicians are usually on the road to Riviera Beach within the hour.
We’ve been working in the 33404 ZIP since 1984, and we know the territory. The narrow strip between the Intracoastal Waterway and the Atlantic means salt air hits from both sides. That dual exposure corrodes metal duct seams faster than anywhere inland in Palm Beach County. We see it in the older CBS homes near Broadway, in the rental corridors off Blue Heron Boulevard, and in the condominium stacks on Singer Island. Our Duct Repair & Sealing team carries the specific materials to fix it: mastic sealant rated for coastal humidity, R-8 insulated flex duct, and galvanized repair collars that hold up to brackish air. We’ll be there when we say.
Why Bellows Air Duct & Vent Co. Is Riviera Beach’s Preferred Duct Repair & Sealing Company
Forty-two years in this trade means we’ve watched Riviera Beach change. The 1950s-1970s concrete block homes that dominate the inland core weren’t built for central air. The ductwork was retrofitted through attics that bake to 140°F in July. We’ve sealed and repaired thousands of those systems. Our 90-Day Done Right Promise is stamped on every job - if it’s not right, we make it right, no paperwork, no arguing.
Our office phone rings to a live person, never a voicemail tree. That’s been true since Ray Castillo founded the company in 1984. Background-checked, uniformed technicians arrive in marked vans. Camera inspection before and after every repair - you’ll see the breach, the corrosion, the sealed result. No bait pricing: the number we quote on the phone is the number on the invoice. We don’t do scare tactics, and we don’t do coupon bait-and-switch.
We also serve Riviera Beach from our dispatch network with technicians who know local building patterns. They recognize the 1960s flex duct runs common to homes east of Congress Avenue. They know the multi-story shared systems in Singer Island condos. Response time to the 33404 ZIP is typically under 90 minutes during business hours.
Our Duct Repair & Sealing Services in Riviera Beach
Duct Sealing
Sealing is where most Riviera Beach jobs start. Salt-laden air infiltrates through gaps at register boots, return-air plenums, and degraded flex duct connections. We seal with mastic, not tape - tape fails in attic heat within two years. Mastic stays flexible, stays sealed, and blocks the salt-air intrusion that’s accelerating corrosion in your metal ducts. A typical duct sealing job in Riviera Beach runs $280-$450 for a single-system home.

Flex Duct Repair
The older rental corridors near Blue Heron Boulevard and Broadway are full of 1960s-70s flex duct that’s partially collapsed or fully disconnected. The system conditions the attic while pulling insulation fibers, rodent debris, and mold spores back into your living space. We replace damaged flex with insulated R-8 aluminum duct, secure all connections with metal clamps and mastic, and verify airflow balance before we leave. Flex duct repair in Riviera Beach typically ranges from $180-$340 per run, depending on attic access.

Metal Duct Repair
Galvanized metal ductwork in coastal Riviera Beach corrodes at the joints and seams within 2-3 years of installation. The salt air finds every pinhole, every seam gap, every spot where the galvanizing wore thin. We cut out corroded sections, fabricate replacement pieces from 26-gauge galvanized steel, and seal with two coats of mastic. For severe corrosion near the coast, we specify stainless steel hardware and coated collars. Metal duct repair in Riviera Beach runs $320-$580 for localized work, $650-$1,200 for extensive section replacement.

Duct Insulation
Unconditioned attics in Riviera Beach hit 140°F+ for months at a stretch. That heat degrades duct insulation, creates condensation on cold metal walls, and breeds mold. We reinsulate with formaldehyde-free fiberglass wrap or closed-cell foam insulation, depending on the application. Proper insulation pays for itself in reduced AC runtime - critical in a market where air conditioning runs eight or more months per year.

What happens when you call
- 1
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 Riviera Beach
We stock parts from Nikro, Honeywell, and Aprilaire - the same brands serious HVAC contractors specify for coastal installations. Nikro’s duct repair tools handle the tight attic spaces common to Riviera Beach’s older homes. Honeywell media air cleaners integrate with sealed duct systems to maintain airflow balance. Aprilaire humidistats and ventilation controls help manage the chronic moisture load that coastal salt air adds to your indoor environment. We carry common repair components on our vans, so most Riviera Beach jobs finish in a single visit. No waiting on parts, no return trips, no extra charges.
Common Duct Repair & Sealing Problems We See in Riviera Beach Homes
- Salt-air corrosion of metal duct seams. The dual exposure from the Atlantic and Intracoastal corrodes galvanized joints and seams within 2-3 years. Air leaks follow, and your AC works harder for less cooling. We find these with camera inspection and seal with mastic or replace corroded sections.
- Chronic attic condensation degrading insulation. Metal duct walls stay cold while attic air hits 140°F. Condensation forms, soaks insulation, and creates mold-friendly conditions. We see this in virtually every 1950s-1970s CBS home with retrofitted ductwork in the 33404 ZIP.
- Collapsed flex duct in older homes near Blue Heron Boulevard and Broadway. The original 1960s-70s flex duct has sagged, torn, or disconnected entirely. The system pumps cooled air into the attic and draws contaminants back into the house. We recently repaired a 1960s-era flex duct system off Blue Heron Boulevard where salt-air infiltration had corroded the metal takeoff collars and degraded the insulation, causing the AC to pull attic debris into the living space. We sealed all connections with mastic and replaced the damaged flex duct with insulated R-8 aluminum duct, restoring system integrity and eliminating the mold spores cycling through the home.
- Salt-particle buildup in Singer Island condominium shared systems. Multi-story air distribution in oceanfront and Intracoastal-facing condos accumulates salt particles that corrode dampers and contaminate supply air. We clean, repair, and seal these systems with materials rated for coastal exposure.
Pricing for Duct Repair & Sealing in Riviera Beach, FL
We’re upfront about numbers. Here’s what duct repair and sealing costs in the Riviera Beach market:
- Duct sealing (mastic, single system): $280-$450
- Flex duct repair/replacement (per run): $180-$340
- Metal duct repair (localized): $320-$580
- Metal duct section replacement (extensive): $650-$1,200
- Duct insulation replacement: $400-$750
- Mastic sealant application (whole system): $350-$550
Costs run toward the higher end when attic access is limited, when corrosion is advanced, or when we find multiple failure points during camera inspection. That’s why we inspect first, quote second, and start work third. The price you approve is the price on the invoice. We offer $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount. Call (844) 685-6342 for a free estimate - we’ll give you a firm number before any tools come out of the van.
We Also Serve Cities Near Riviera Beach
Our service area extends to Lake Shore, Severna Park, Arnold, and Green Haven. The same salt-air patterns affect ductwork across this coastal corridor, and we bring the same materials and expertise to every job. If you’re in a neighboring community and seeing the same corrosion, condensation, or collapsed flex duct issues, we’re available.
Serving Riviera Beach, FL - Our Local Coverage Area
We’re based in the Riviera 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 Riviera Beach
Salt-laden air from both the Atlantic Ocean and the Intracoastal Waterway corrodes galvanized metal duct seams and joints at a rate far exceeding inland Palm Beach County cities like Lake Worth or Boynton Beach. The salt particles are hygroscopic - they attract moisture - which keeps metal surfaces perpetually damp and accelerates rust. Within 2-3 years, you’ll see pinhole leaks at seams, loose joints, and eventually air loss that drives up your electric bill. We inspect for this with camera equipment and seal or replace affected sections with materials rated for coastal exposure. Call (844) 685-6342 for a free inspection.
These homes were built in the 1960s-1970s with concrete block construction and no original central air. Ductwork was retrofitted through unconditioned attics using early flex duct that degrades in extreme heat. Over fifty-plus years, the flex duct sags, tears at connection points, or disconnects entirely. The system then cools the attic instead of the house, and the return side pulls attic contaminants into your living space. We replace these runs with modern insulated R-8 aluminum duct and secure every connection with metal clamps and mastic. Call (844) 685-6342 for an exact quote - estimates are free.
Not necessarily. Metal ductwork, properly sealed and insulated, outlasts flex duct in coastal conditions. The problem is usually corrosion at joints and seams, not the metal itself. We repair metal duct by replacing corroded sections, using stainless hardware where salt exposure is severe, and sealing with mastic that flexes with temperature changes. Flex duct is appropriate for short runs and tight spaces, but for main trunk lines in salt-air environments, repaired and sealed metal often performs better long-term. We’ll show you the camera footage and recommend what’s right for your specific system. Call (844) 685-6342 for a free second opinion on any written estimate.
In Riviera Beach’s dual salt-air environment, we recommend inspection every two to three years. The corrosion cycle is that fast. Homes within a few blocks of either the Intracoastal or the Atlantic should lean toward two-year intervals. Older homes with original or retrofitted ductwork from the 1960s-1980s may need attention annually until fully upgraded. Our $89 Seasonal Tune-Up includes a basic duct inspection that catches problems before they become major repairs. Call (844) 685-6342 to schedule.
Metal duct repair, flex duct repair, and mastic sealant application are the three we perform most often in the 33404 ZIP. Metal duct repair addresses the salt corrosion that’s endemic here. Flex duct repair fixes the collapsed and degraded runs in older homes. Mastic sealant is the only sealing method we trust for coastal humidity and attic heat - tape fails, mastic endures. Camera inspection before and after verifies the work. Every job carries our 90-Day Done Right Promise in writing. Call (844) 685-6342 to discuss your specific system.
Ready to fix the duct problems that salt air and age have created in your Riviera Beach home? Call Bellows Air Duct & Vent Co. at (844) 685-6342. We’ll answer live, schedule a free estimate, and show up when we say. One honest price, disclosed before we start. Done right - and backed in writing for 90 days.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Riviera Beach since 1984.