Fast, Reliable Duct Repair & Sealing Across Tamiami
Duct repair and sealing in Tamiami typically runs $280-$650 for most residential jobs, with flex duct replacement sections adding $180-$340 per run depending on attic access. We’re usually on-site within the hour for Tamiami calls, and most repairs are finished same day. Call (844) 685-6342 for a free estimate with upfront pricing before we lift a single tool.
We’ve been driving the Tamiami Trail to service calls out here since 1984. We know the neighborhoods between SW 8th Street and the western edge where the streets dead-end into sawgrass. We know which homes were built with original flex duct in the 1970s attic spaces, and we know what happens to that ductwork after forty summers in 140-degree flat-roof attics. Our Duct Repair & Sealing team doesn’t guess. We camera-inspect every system before we quote, and we show you what we see.
Why Bellows Air Duct & Vent Co. Is Tamiami’s Preferred Duct Repair & Sealing Company
Bellows has been serving Miami-Dade County for over 42 years, and Tamiami has been part of our route since the first suburban developments went in along US-41. Homeowners here call us because we’ve worked on their neighbors’ houses, their parents’ houses, and now their grown children’s houses. That kind of repeat relationship only happens when you stand behind the work.
Our 90-Day Done Right Promise is stamped on every job. If something’s not right, we make it right. No paperwork, no arguing. We also back every repair with camera-verified results, not just a verbal claim. You’ll see the before and after.
Calls to our office are answered by a live person, 24 hours a day. Not voicemail, not an app. When your AC is blowing musty air at 10 PM on a July night, you get a human who can dispatch a technician.
Our pricing is disclosed upfront before work begins. The number we give on the phone is the number on the invoice. We’ve never used bait coupons, and we don’t start work and then “find” problems that change the price.
Our Duct Repair & Sealing Services in Tamiami
Duct Sealing
Leaky ductwork in Tamiami doesn’t just waste money. It pulls unfiltered Everglades air directly into your living space. We seal every joint, seam, and connection with mastic sealant, not duct tape. Tape fails in our humidity. Mastic doesn’t. A typical duct sealing job in Tamiami runs $280-$450 for a single-system home, and we verify the seal with a post-repair camera inspection.
Flex Duct Repair
The bulk of Tamiami’s housing stock was built in the 1970s-1990s with original flex duct that has spent decades in flat-roof attics where summer temperatures routinely exceed 130-140°F. That heat degrades the inner liner, creating rough surfaces that trap mold spores and particulates. We replace damaged sections with new, insulated flex duct rated for our conditions. Section replacement runs $180-$340 per run depending on length and attic access difficulty.
Metal Duct Repair
Older Tamiami homes with galvanized metal ductwork often have separated seams, rusted sections, or failed fiberglass liner. We repair or replace metal sections, re-line where appropriate, and seal with mastic. Metal repairs typically start around $320 and can reach $650 for extensive work in tight attic spaces.
Duct Insulation
Uninsulated or degraded duct insulation in Tamiami’s attics creates condensation problems that compound our already-high humidity. We install fresh insulation vapor-sealed to prevent moisture intrusion. Insulation work runs $200-$480 depending on linear footage and whether we’re accessing a flat-roof or pitched attic.
Mastic Sealant
We use mastic on every Tamiami job. It’s the only sealant that holds up to our humidity and temperature swings. We apply it by brush at every joint and seam, then verify coverage with camera inspection. This is standard on every Bellows repair. Not optional, not upsold.
Air Leak Repair
Disconnected ducts in Tamiami pull outdoor air loaded with mold spores, pollen, and organic particulates from the adjacent wetlands. We locate disconnections with camera and pressure testing, then repair and seal. Most air leak repairs are resolved in a single visit.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
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 Tamiami
We carry Nikro inspection cameras and Honeywell air quality components on every truck, and we stock Aprilaire antimicrobial treatments specific to high-humidity applications. For Tamiami homeowners, this means we don’t order parts and make you wait. We diagnose, repair, and verify in one trip. Our technicians are background-checked and uniformed, and they’ve been trained on the same equipment serious HVAC contractors specify. We don’t send salespeople. We send people who can do the work.
Common Duct Repair & Sealing Problems We See in Tamiami Homes
- Original flex duct with degraded liners. In a 1980s home on SW 117th Ave near the Everglades buffer, we found original flex duct with degraded inner liners and mold colonies on supply diffusers. We sealed all air leaks with mastic, replaced several sections of flex duct, and applied an antimicrobial treatment to prevent recurrence. The homeowner reported that musty odors that returned within one summer in prior cleans are now gone.
- Fiberglass-lined metal ductwork trapping moisture. Leaving original fiberglass-lined metal ductwork unsealed in Tamiami’s flat-roof attics traps particulates and allows moisture intrusion during storms, leading to rapid mold growth within weeks. We assess liner condition during every camera inspection and recommend sealing or replacement before microbial colonies establish.
- Failed duct tape creating air leaks. Using standard duct tape instead of mastic sealant fails in Tamiami’s high humidity, causing disconnections and air leaks that draw Everglades spores into the living space. We remove old tape and apply mastic at every repair.
- Skipped antimicrobial treatment leading to rapid regrowth. Skipping antimicrobial treatment after repairs in Tamiami’s wetland front results in visible microbial regrowth on supply diffusers within a single summer season. We include this treatment on every repair where our inspection shows existing microbial activity.
Pricing for Duct Repair & Sealing in Tamiami, FL
Here’s what duct repair and sealing costs in the Tamiami market. These are real ranges based on jobs we’ve completed in 33184 and surrounding ZIP codes.
| Service | Typical Range in Tamiami |
|---|---|
| Duct sealing (mastic, full system) | $280-$450 |
| Flex duct section replacement | $180-$340 per run |
| Metal duct repair / re-lining | $320-$650 |
| Duct insulation (vapor-sealed) | $200-$480 |
| Air leak detection and repair | $220-$380 |
| Antimicrobial treatment | $150-$280 |
What moves the price: attic access difficulty (flat-roof attics with small scuttles take longer), extent of microbial damage requiring remediation before sealing, and whether we’re working around stored items or cleared space. We show you the camera footage and explain every line before we start. Estimates are free. Call (844) 685-6342 for yours.
Standing offers: $50 Off Any Repair Over $250. Free Second Opinion on Any Written Estimate. Permanent 5% Senior and Veteran discount.
We Also Serve Cities Near Tamiami
Our service area covers all of western Miami-Dade. We regularly run calls in Tamiami, Sweetwater, University Park, Fountainebleau, and Olympia Heights. Same response standards, same upfront pricing, same 90-Day Done Right Promise. If you’re on the west side of the county, you’re on our route.
Serving Tamiami, FL - Our Local Coverage Area
We’re based in the Tamiami 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 Tamiami
Tamiami’s position directly against the Everglades means outdoor air drawn into HVAC returns carries exceptionally high mold spore and organic particulate loads, causing ductwork to accumulate microbial growth faster than anywhere else in Miami-Dade. Without mastic sealing and antimicrobial treatment, new spores enter through remaining leaks and re-colonize within weeks. We address this with complete mastic sealing and post-repair antimicrobial application on every job. Call (844) 685-6342 if you’re dealing with recurring musty air.
Yes. Standard duct tape fails within months in Tamiami’s humidity, creating new air leaks that draw contaminated outdoor air into your system. Mastic remains flexible and bonded for years. We use it on every joint, every seam, every repair. No exceptions. Call (844) 685-6342 for a free inspection of your current seal condition.
Replace sections where the inner liner is degraded or separating; repair and seal where the liner is intact but connections have failed. We camera-inspect to make this determination on every job. Full replacement of an original system in a typical Tamiami ranch runs $1,800-$3,200, while targeted section repairs with sealing run $280-$650. We’ll show you the footage and give you both options. Call (844) 685-6342 for a free estimate.
Properly sealed ductwork with mastic should last 10-15 years, but we recommend inspection every 3-5 years in Tamiami due to our extreme heat, humidity, and storm exposure. If you’ve had roof work, pest activity, or notice rising energy bills, call sooner. Our $89 Seasonal Tune-Up includes a basic seal check. Call (844) 685-6342 to schedule.
Yes. Tamiami’s low, flat terrain means post-storm moisture intrusion into attic spaces is common even without visible roof leaks. Humidity spikes in the attic condense on duct surfaces, especially where insulation is thin or damaged. This moisture, combined with our ambient humidity, creates ideal conditions for mold growth in unsealed or poorly sealed systems. We check for moisture damage during every camera inspection. Call (844) 685-6342 if you’ve noticed musty air after recent storms.
Ready to get your ductwork sealed right? Call (844) 685-6342 for a free estimate. We’ll camera-inspect your system, show you exactly what we find, and give you one honest price before we start. No bait coupons, no changes at the door. Done right, and backed in writing for 90 days.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Tamiami since 1984.