Fast, Reliable Duct Repair & Sealing Across Conway
Duct repair and sealing in Conway, FL typically costs $180-$650 depending on whether you’re patching a single flex duct run or sealing an entire attic system, and most jobs are completed in a single visit when you call early in the day. We answer our phones live 24 hours a day at (844) 685-6342, and our technicians are usually on Conway streets within the hour for standard calls.
We’ve worked Conway’s mid-century ranch homes for over 42 years, from the tree-lined blocks off Curry Ford Road to the lakefront properties along Lake Conway and Lake Gatlin. These neighborhoods have their own rules. The 1950s-1970s slab-on-grade construction common to ZIP 32812 routes every inch of ductwork through attic space that cooks to 130°F+ in summer. Add Conway’s persistent lake-effect humidity, and you’ve got conditions that destroy standard repair materials. Our Duct Repair & Sealing crew carries industrial-grade mastic sealants and insulation rated specifically for Florida attic environments, not the hardware-store tape that peels off in months.
Why Bellows Air Duct & Vent Co. Is Conway’s Preferred Duct Repair & Sealing Company
Conway homeowners know the difference between a technician who reads a ZIP code and one who knows the neighborhood. We’ve replaced duct board in the original ranches near Lake Pineloch, sealed flex ducts in the workshop outbuildings off Semoran Boulevard, and traced mold patterns that only make sense if you understand how lake-effect humidity moves through these attics at night.
Our reputation here is built on showing up when we say and leaving with the job finished. Most Conway calls are completed in one trip by background-checked, uniformed technicians. Before we pack up, we run a camera through every repaired section. You see what we see. No claim without proof.
We’re not the cheapest name in the Orlando phone book, and we don’t try to be. Our upfront pricing means the number you hear on the phone matches the invoice. No bait coupons, no price changes when we arrive. That approach has kept us serving Conway and surrounding communities since 1984.
Ray Castillo has led Bellows Air Duct & Vent Co. since its founding, and the 90-Day Done Right Promise stamped on every job is his non-negotiable standard. If it’s not right, we return at no charge. No paperwork, no arguing.
Our Duct Repair & Sealing Services in Conway
Duct Sealing
Conway’s original fiberglass duct board from the 1960s and 70s has reached the end of its lifespan. The material becomes brittle, joints separate, and the lake-effect humidity finds every gap. We seal with heavy-duty mastic compound applied by brush at every joint and seam, then pressure-test the system to verify. A typical whole-system sealing in Conway runs $450-$650 for a single-story ranch.

Flex Duct Repair
Flex duct is common in Conway homes that saw HVAC upgrades in the 1990s and 2000s. The plastic liner degrades in attic heat, and the insulation sleeve compresses where it sags. We replace damaged runs with new R-8 flex duct, support it properly to prevent future sagging, and seal all connections with mastic. Single-run replacement in Conway typically costs $180-$340.

Metal Duct Repair
Some Conway homes, particularly those with original or early-replacement systems, still have galvanized metal trunk lines. These corrode at seams and can separate entirely during Florida’s thermal expansion cycles. We repair with metal patches, seal with mastic, and insulate to prevent condensation. Metal duct repairs in Conway generally fall between $280-$520 depending on accessibility and extent of corrosion.

Duct Insulation
Here’s where Conway’s conditions demand specific expertise. Standard insulation wraps trap moisture in this humidity. We use closed-cell insulation products that won’t absorb lake-effect moisture, properly sealed at every seam. For Conway’s unconditioned attics, this isn’t an upgrade, it’s necessary for any repair to last. Insulation replacement on a typical ranch system runs $380-$580.

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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Conway
Our trucks stock parts and materials from Rotobrush, Nikro, and Abatement Technologies, the same brands serious HVAC contractors specify for Florida’s demanding conditions. We don’t make a Conway homeowner wait while we order mastic rated for 150°F attic exposure or insulation that won’t mold. That inventory, combined with our local knowledge of 32812’s housing stock, is why most repairs finish in one visit.
Common Duct Repair & Sealing Problems We See in Conway Homes
- Standard mastic tape fails within months on workshop ducts. Conway properties with detached workshops see temperature swings and dust loads that destroy consumer-grade tape. We apply industrial-grade sealants rated for Florida attic extremes.
- DIY patch kits mask mold that returns stronger. Homeowners on large lots near Lake Conway and Lake Gatlin often try sealing visible leaks themselves. Without addressing the underlying mold from lake-effect moisture, the problem resurfaces within a year, usually worse than before.
- Negative pressure pulls humid lake air through every gap. Oversized workshop spaces and powerful HVAC systems create suction that overwhelms typical sealing methods. Whole-system mastic sealing, not spot repairs, is required.
- Original duct board sheds fiberglass particulates into living space. The 40-50 year old fiberglass duct board in Conway’s mid-century ranches has degraded through decades of heat cycling. Homeowners notice dust that doesn’t settle normally, often accompanied by increased allergy symptoms.
Pricing for Duct Repair & Sealing in Conway, FL
We’re direct about numbers because Conway homeowners have better things to do than sit through a sales presentation.
| Service | Typical Range in Conway |
|---|---|
| Single flex duct run repair/replacement | $180 - $340 |
| Metal duct section repair with patch and seal | $280 - $520 |
| Whole-system mastic sealing (typical ranch) | $450 - $650 |
| Duct insulation replacement | $380 - $580 |
| Combined repair + sealing + insulation package | $680 - $980 |
What moves you within these ranges: attic accessibility (some 32812 ranches have tight hatches), extent of mold remediation needed before sealing, and whether we’re repairing three joints or thirty. We inspect with a camera first, show you the footage, then quote. The price you approve is the price on the invoice.
Current standing offers: $50 off any repair over $250, free second opinion on any written estimate, and a permanent 5% senior and veteran discount. Call (844) 685-6342 for your exact quote, estimates are free.
We Also Serve Cities Near Conway
Our service area extends throughout the Orlando metro, including Orlando, Azalea Park, Belle Isle, and Pine Castle. The same live-answer phones, same camera-verified work, same 90-Day Done Right Promise apply whether you’re on Lake Conway or across the city line.
Serving Conway, FL - Our Local Coverage Area
We’re based in the Conway 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 Conway
Standard materials and DIY patch kits can’t survive Conway’s combination of extreme attic heat and persistent lake-effect humidity. The moisture prevents proper curing and causes tape adhesive to break down, while mold continues growing behind the patch. We use industrial-grade mastic sealants and closed-cell insulation rated for Florida attics, applied after camera inspection and any necessary mold treatment. Call (844) 685-6342 for a permanent fix, estimates are free.
Yes. Workshop ducts on Conway’s larger properties experience more extreme temperature swings and dust exposure than main-house systems, plus negative pressure from oversized spaces that pulls humid lake air through gaps. Standard mastic tape peels off within months. We seal workshop ducts with heavy-duty compounds and verify with pressure testing. Call (844) 685-6342 to schedule, estimates are free.
Signs include dust that reappears within hours of cleaning, visible fiberglass particles on vent covers, and increased allergy symptoms that worsen when the AC runs. In Conway’s 32812 ZIP, original duct board from the 1960s-1970s has typically degraded through 40-50 years of heat cycles. We camera-inspect to confirm and show you the footage before quoting replacement. Call (844) 685-6342 to schedule, estimates are free.
Mold must be treated before sealing, or it will continue growing in trapped moisture. We apply antimicrobial treatment, then seal with mastic and insulate with closed-cell materials that don’t absorb humidity. On a job near Lake Conway, we found mold thriving inside a 12-year-old flex duct system. Our crew applied heavy-duty mastic sealant at every joint and wrapped the ducts with new insulation to combat the persistent lake-effect humidity, ensuring a one-trip fix for the homeowner’s chronic allergy issues. Call (844) 685-6342 to discuss your situation, estimates are free.
Most of our Conway jobs finish in a single visit because our trucks carry the full range of materials and our technicians are trained to handle repairs, sealing, and insulation without calling for backup. Large properties with multiple workshop buildings or extensive mold remediation may require scheduling additional work, but we complete the critical sealing on day one. Call (844) 685-6342 and we’ll give you a realistic timeline, estimates are free.
Ready to stop losing cooled air to your attic and start breathing cleaner air? Call Bellows Air Duct & Vent Co. at (844) 685-6342. We’ll answer live, schedule your free estimate, and get your Conway home’s ductwork sealed right, backed in writing for 90 days.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Conway and Central Florida communities since 1984.