When do I need new ductwork?
Signs: weak airflow despite clean filter, rooms that never cool/heat evenly, energy bills rising, visible duct damage in attic, musty smell, 20+ year old fiberboard ducts. We inspect free.
R6 vs R8 flex, big difference in Tampa?
Yes, R8 loses about 40% less cooling through attic heat than R6. $100/section extra. Payback 2-4 years in energy savings.
Why antimicrobial flex?
Tampa humidity grows mold in duct insulation. Antimicrobial R8 flex is treated to resist mold/bacteria. Dramatically less mold + allergy risk. $100 premium per section, worth it.
Should I add zoning at the same time?
If you have hot/cold spots or multi-story home: absolutely. Honeywell zone $2,599 or Daikin Fit zone $4,999 with new ducts is cheaper than retrofitting later.
What's an air plenum?
The large sheet-metal box that distributes air from the air handler to the ducts. New plenum $999 when replacing full duct system.
Can I replace just one duct section?
Yes, from $79 repair to $599 per section replacement. Common for localized damage.
Metal spiral duct, worth it?
Premium option. Lasts 50+ years, quieter, cleaner airflow. $1,999/section vs $599 R6 flex. Usually commercial or luxury residential.
Florida permit required?
Yes for full system replacement. We pull + coordinate inspection. Included in install price.
How long does installation take?
Single section repair: 2-3 hours. Full system replacement + zoning: 1-2 days. Plus inspection day.
Hurricane safety?
All our installs strap ductwork per Florida hurricane code. Standard, not extra cost.
Old duct cleaning vs replacement?
If ducts are sound: cleaning $90-$180. If damaged/old fiberboard: replacement. We recommend based on inspection.
How much does duct replacement cost in Tampa?
A typical full-home R-8 flex re-duct runs $2,500 to $4,500 for an average 2,000 square foot Tampa home. Mixed sheet metal trunks with flex branches runs $4,500 to $7,500. Full galvanized sheet metal with R-8 wrap runs $7,500 to $12,500. Final price depends on home size, attic accessibility, register count, and whether the air handler plenum needs replacement at the same time.
Is R-8 duct really worth it over R-4 or R-6?
Yes, especially in Tampa Bay attics. R-8 cuts conditioned-air loss from 20 to 30 percent down to 8 to 12 percent in a 130-degree attic. The energy savings of $400 to $700 per year pay back the upgrade in 3 to 5 years, then it is pure money in your pocket for the rest of the duct lifespan.
How long does flex duct last in Tampa?
15 to 20 years is the realistic lifespan for flex duct in a Tampa Bay unconditioned attic. The combination of constant 130-degree heat, UV exposure where any sunlight reaches it, and Florida humidity degrades the inner plastic liner over time. Sheet metal trunks last 30 to 50 years and outlive multiple AC system replacements.
Should I replace just the damaged sections or the full system?
Spot repair makes sense when you have one or two isolated leaks on otherwise healthy duct that is under 10 years old. Full replacement is the right call when the system is 15 plus years old, when you have multiple leak points, when the inner liner is visibly degraded, or when a hurricane drove rain into exposed sections. Patching old, brittle flex usually just kicks the can down the road 12 to 18 months.
Does Home Therapist do FREE duct system assessments?
Yes. Every duct estimate includes a full attic and duct inspection at no cost. We measure static pressure, check for visible leaks and crushed sections, inspect the air handler plenum, document the current R-value, and give you a written quote with photo evidence before any work is scheduled. Call (813) 343-2212 to book the FREE assessment.
