Fast, Reliable Duct Repair & Sealing Across Orlando
Duct repair and sealing in Orlando typically runs $280-$650 for most residential jobs, with same-day service available throughout the metro when you call before noon. Our Duct Repair & Sealing team has been driving to Orlando homes from our dispatch network for over 42 years, and we know the difference between a quick collar reseal on a 1990s flex run and a full attic system rebuild on a 1970s concrete-block ranch. If your vents are blowing weak, your humidity won’t drop below 60%, or you’re finding fiberglass dust on your furniture, the problem is likely in your attic ductwork, not your AC unit. Call (844) 685-6342 and we’ll send a technician with a duct camera, a written estimate, and no obligation to proceed.
Why Bellows Air Duct & Vent Co. Is Orlando’s Preferred Duct Repair & Sealing Company
We’ve built our name in Orlando by showing up when we say we will and leaving the ductwork better than we found it. Homeowners in Conway, Winter Park, and Union Park call us back because our 90-Day Done Right Promise means exactly that: if the seal doesn’t hold, if the airflow doesn’t improve, or if you find mold returning in the same spot, we return at no charge. No paperwork to file, no manager to escalate to.
Our technicians are background-checked, uniformed, and equipped with Rotobrush inspection cameras and professional-grade mastic and sealants from Abatement Technologies. Every Orlando job gets a before-and-after video walkthrough of the attic ductwork. You’ll see the separated collars, the cracked mastic, the fiberglass infiltration - or you’ll see clean, sealed joints and new R-8 insulation where we replaced deteriorated flex runs. That’s the proof.
Calls to our office route to a live person, 24 hours a day. Not an app. Not a callback queue. A real person who can dispatch a technician to Pine Hills, Azalea Park, or Oak Ridge with a two-hour window, not an all-day wait.
Ray Castillo, who leads Bellows Air Duct & Vent Co., set the standard in 1984: one honest price shown before we start, no bait coupons, no price changes at the door. That standard hasn’t changed in four decades.
Our Duct Repair & Sealing Services in Orlando
Duct Sealing
Orlando’s attic temperatures destroy duct seals faster than almost any major U.S. market. We seal supply and return plenums, register boots, and trunk line connections with UL-181-rated mastic - not foil tape alone, which embrittles and fails within two to three years in 130°F+ heat. A typical duct sealing job in Orlando runs $280-$450 for a single-system home, and most are completed in one visit. We pressurize the system and verify seal integrity before we leave.
Flex Duct Repair
Flex duct is the standard in Orlando’s 1960s-1990s tract homes, and it’s where we find the most hidden damage. Collars separate from plenum boxes silently. Insulation jackets sag and tear. Rodents in attic spaces chew through the mylar outer wrap. We replace damaged flex runs with R-8 insulated duct rated for Florida’s climate, secure collars with mechanical fasteners plus mastic, and support the runs properly to prevent sagging. Flex duct repair in Orlando typically costs $180-$340 per run, depending on attic accessibility and length.
Metal Duct Repair
Older Orlando homes, particularly in Parramore and parts of Pine Hills, still have galvanized steel trunk lines from the 1950s-70s. These corrode at seams, separate at drive cleats, and transmit noise that flex duct doesn’t. We repair separated seams, replace rusted sections, and apply epoxy lining where appropriate. Metal duct repair in Orlando runs $320-$580, with full section replacement at the higher end.
Duct Insulation
Uninsulated or poorly insulated supply boots in Orlando attics sweat continuously from May through October. That condensation feeds mold colonies that blow spores into living spaces every time the AC cycles. We wrap supply plenums and boots with closed-cell insulation and vapor barrier, seal all penetrations, and treat existing mold with antimicrobial before sealing. Duct insulation work in Orlando typically ranges $350-$620 depending on the number of boots and plenum size.
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 Orlando
We carry mastic, sealants, and replacement flex duct from Abatement Technologies and Aprilaire, the same brands specified by commercial HVAC contractors in Orlando’s medical and hospitality sectors. Our Rotobrush inspection systems let us show you the condition of your ductwork on a screen before we quote a dollar. We don’t guess, and we don’t ask you to trust us blindly. The camera shows what the eye can’t see from the living room.
Common Duct Repair & Sealing Problems We See in Orlando Homes
- Collar separation in superheated attics. In Orlando’s concrete-block homes, flex-duct collars separate from plenum boxes after decades of 130°F+ heat degrading the original mastic and tape. The system pulls unfiltered attic air - loaded with blown-in fiberglass - directly into your supply runs, completely invisible until a camera inspection reveals it.
- Embrittled mastic from 1970s-80s installs. Original mastic and foil tape in Orlando’s older homes cracks and flakes away, creating leaks that waste 20-30% of conditioned air. Your AC runs longer, your humidity stays high, and your power bill climbs while comfort drops.
- Mold colonization in condensation-prone boots. Orlando’s near-daily summer humidity above 85% and attic temperatures that never allow duct interiors to fully dry create perfect conditions for mold in supply boots and plenum areas. Winter temperatures never drop low enough to kill spores or dry out the system the way a true northern winter would.
- Sagging flex runs from improper original support. Many Orlando tract homes were built with flex duct hung on wire or strapping that has corroded or stretched over 30-40 years. Sagging creates low points where condensation pools, accelerating mold growth and restricting airflow.
Pricing for Duct Repair & Sealing in Orlando, FL
We don’t do bait pricing. The number we give on the phone is the number on the invoice.
| Service | Typical Orlando Range |
|---|---|
| Duct sealing (single system, mastic) | $280-$450 |
| Flex duct repair (per run, R-8 replacement) | $180-$340 |
| Metal duct repair (seam/separation) | $320-$580 |
| Duct insulation (supply boots/plenum wrap) | $350-$620 |
| Full attic system assessment with camera | $89 (credited toward repair) |
Factors that move Orlando jobs toward the higher end: attic accessibility (tight truss spacing, blown-in insulation depth), number of separated collars requiring replacement rather than resealing, and extent of mold remediation needed before new insulation can be applied. Every estimate is free, written, and valid for 30 days. We also honor our standing offers: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount.
Call (844) 685-6342 for an exact quote on your Orlando home.
We Also Serve Cities Near Orlando
Our technicians live and work throughout central Florida. We regularly repair ductwork in Orlando proper plus Conway, Azalea Park, Winter Park, and Union Park. Same response standards, same camera verification, same 90-Day Done Right Promise in every ZIP code we cover.
Serving Orlando, FL - Our Local Coverage Area
We’re based in the Orlando 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 Orlando
Because the failures are in your attic, not your living room. In Orlando’s 130°F+ attics, mastic and foil tape degrade silently at plenum connections while the ceiling registers look perfectly normal. We’ve camera-inspected hundreds of Orlando homes where the visible ductwork was clean and intact while the attic side had separated collars pulling fiberglass and unfiltered attic air into supply runs for years. Call (844) 685-6342 for a camera inspection - estimates are free.
Foil tape alone won’t hold in an Orlando attic. The heat cycling and humidity degrade tape adhesive within two to three years. We use mechanical fasteners plus UL-181 mastic rated for high-temperature applications, which is the only repair method that lasts in Pine Hills and Oak Ridge attics. A proper collar reseal with support correction runs $220-$340. Call (844) 685-6342 and we’ll show you the difference on camera.
Replace it if the insulation jacket is torn, the inner liner is collapsed, or mold has colonized the porous insulation. Repair with mastic and mechanical fasteners if the flex is structurally sound but collars have separated. In Conway’s 1980s homes, we find about 60% of original flex runs need full replacement while 40% can be resealed and supported. We’ll show you which category yours falls into before you decide. Typical full replacement of a Conway system runs $1,800-$3,200 versus $480-$920 for targeted repairs. Call (844) 685-6342 for a written assessment.
Yes, significantly. Leaky return ducts pull humid attic air into the system, while leaky supply ducts lose dehumidified air before it reaches your rooms. Both force your AC to run longer without reaching set humidity levels. After proper sealing, most Orlando homeowners see indoor humidity drop 8-15% and cooling cycles shorten. The payback on sealing alone is typically 18-30 months in reduced runtime. Call (844) 685-6342 for a free pressure test and estimate.
Musty odor when the AC cycles, visible black or green staining on ceiling registers, or persistent allergy symptoms that worsen at home are the common signs. But only a camera inspection of the attic ductwork confirms mold location and extent. In Orlando’s climate, mold in supply boots and plenum areas is common; in the flex duct insulation itself, it’s less frequent but more serious. We treat localized mold with antimicrobial before sealing; extensive colonization requires insulation replacement. Camera assessment is $89, credited toward any repair work. Call (844) 685-6342 to schedule.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Orlando since 1984.