Custom Ductwork Fabrication and Replacement in the Upper Keys
Even the most expensive variable-speed air conditioner will underperform if attached to leaky, sweating, or undersized ductwork. We design, fabricate, and seal custom sheet metal and fiberglass duct systems built for Monroe County humidity.
- Sheet metal & fiberglass fabrication
- Static pressure balancing
- Mon–Fri, 8 AM–5 PM
5 Signs Your Coastal Ductwork Is Compromised
- Sweating Supply Vents: Water droplets or mildew rings forming around ceiling registers.
- Hot & Cold Rooms: Far bedrooms stay warm while the hallway by the thermostat freezes.
- Musty Attic Odors: Negative pressure pulling unconditioned 85°F+ attic air into return leaks.
- Torn Vapor Barriers: Deteriorated foil backing on 15–25 year-old attic trunks causing insulation saturation.
- Noisy Return Grilles: High static pressure starving your variable-speed blower motor.
Custom Sheet Metal, Antimicrobial Fiberglass & Insulated Flex
Most residential AC contractors in the Florida Keys only swap equipment boxes. As a licensed Mechanical Contractor (#CMC1250577), we engineer the complete air distribution system—making us a trusted partner for luxury custom builders, remodels, and existing homeowners from Ocean Reef to Islamorada.
| Duct Material & Method | Where We Specify It in Upper Keys Homes | Humidity & Airflow Benefit |
|---|---|---|
| Custom Fabricated Sheet Metal Plenums & Trunks | Mechanical closets, commercial spaces, custom architectural soffits, and high-velocity main trunks. | Zero fiber shedding, maximum structural rigidity, and clean wipe-down surfaces when paired with external vapor-sealed insulation. |
| Antimicrobial Fiberglass Duct Board | Supply and return plenums in residential attics where acoustic quietness and thermal R-value are critical. | Built-in thermal insulation and sound attenuation with mastic-sealed joints to prevent attic dew-point sweating. |
| R-6 / R-8 Vapor-Sealed Runouts & Sealed Boots | Branch takeoffs feeding individual bedrooms and living spaces. | Pulled tight with proper support spacing and sealed air-tight to drywall ceilings to eliminate register condensation. |
Seamless Integration With IQAir & Dehumidifiers
Replacing or modifying your return and supply plenums is the ideal time to integrate hospital-grade IQAir PerfectPro MERV 16 filtration or a dedicated whole-home dehumidifier without restricting static pressure.
New Construction & Whole-Home Remodels
We collaborate directly with homeowners, architects, and general contractors on ACCA Manual J and Manual D duct layouts so new additions and gut-remodels pass Monroe County mechanical inspections smoothly.
Questions About Ductwork Replacement in the Upper Keys
Why are my AC ceiling vents sweating or dripping water in the Florida Keys?
When humid coastal air leaks into an unconditioned attic or crawlspace and contacts cold supply boots—or when undersized, crushed ductwork slows airflow across the coil—condensation forms on metal registers. We seal supply boots to the drywall ceiling, insulate plenums properly, and correct Total External Static Pressure (TESP) so vents stop sweating.
Do you fabricate custom sheet metal and fiberglass ductwork in-house?
Yes. Unlike high-volume companies that only swap outdoor condensers, Jason Beegle holds Florida State Certified Mechanical Contractor License #CMC1250577 and custom-fabricates both heavy-gauge sheet metal and antimicrobial fiberglass duct board for remodels, new construction, and full duct replacements.
How do I know if my Upper Keys home needs ductwork replacement instead of a new AC unit?
If your air conditioner runs constantly yet certain bedrooms stay warm, if you smell musty fiberglass odors when the blower kicks on, or if your ducts are 20+ years old with deteriorating vapor barriers, replacing or modifying the ductwork often restores comfort and lowers electric bills far more effectively than replacing the equipment alone.