Ductwork that actually matches the house
Your outdoor unit can be running fine and the house still won’t cool right. A lot of the time the leak is in the ducts — cooled air dumping into a 120° attic. Nolan Air seals, repairs, modifies, and replaces ductwork across Tampa Bay.
Free duct assessments. Licensed techs. Upfront pricing.
Trusted & Loved
Fast & reliable service, trusted by Tampa Bay.
Upfront Pricing
No surprises—just honest pricing.
No AC? No problem. Call now or schedule same-day service.
What we actually do to ducts
Sealing, repairs, modifications, replacement — and cleaning when it’s needed
- Sealing with mastic: we seal joints and boots with mastic, not tape that peels off in attic heat, so the air you paid to cool ends up in the rooms.
- Repairs: crushed flex, disconnected runs, duct falling off a boot in the attic — we put it back the way it should have been.
- Modifications: adding a return or resizing a run when one room is starved and the rest of the house is fine.
- Replacement: old crumbling flex or an undersized trunk that no amount of patching will fix.
- Duct cleaning: when the vents are genuinely filthy we clean them — separate from sealing, and we’ll tell you which one you need.

WHAT WE ACTUALLY DO TO DUCTS
Sealing, repairs, modifications, replacement — and cleaning when it’s needed
- Sealing with mastic: we seal joints and boots with mastic, not tape that peels off in attic heat, so the air you paid to cool ends up in the rooms.
- Repairs: crushed flex, disconnected runs, duct falling off a boot in the attic — we put it back the way it should have been.
- Modifications: adding a return or resizing a run when one room is starved and the rest of the house is fine.
- Replacement: old crumbling flex or an undersized trunk that no amount of patching will fix.
- Duct cleaning: when the vents are genuinely filthy we clean them — separate from sealing, and we’ll tell you which one you need.
No AC? No problem. Call now or schedule same-day service.
Free duct assessments
How we tell you what the house actually needs
- We look before we quote: a tech walks the attic, checks the runs, and finds where air is escaping instead of guessing from the thermostat.
- Straight answer, upfront pricing: we’ll tell you whether sealing, a repair, or a replacement would actually change how the house feels — and what it costs before we start.
- Licensed techs, local crew: Tampa Bay attics in August are our normal Tuesday. Free duct assessments, no pressure.

FREE DUCT ASSESSMENTS
How we tell you what the house actually needs
- We look before we quote: a tech walks the attic, checks the runs, and finds where air is escaping instead of guessing from the thermostat.
- Straight answer, upfront pricing: we’ll tell you whether sealing, a repair, or a replacement would actually change how the house feels — and what it costs before we start.
- Licensed techs, local crew: Tampa Bay attics in August are our normal Tuesday. Free duct assessments, no pressure.
Repair: put the run back the way it should have been
Most Tampa Bay attics we walk are not a full replacement. A flex line got stepped on. A supply popped off a boot in August heat. The inner liner is torn at one elbow and the rest of the trunk is fine. That is a repair.
We find the break, put the duct back on the boot, and mastic the joint so it stays. Tape that is already peeling is not a repair — it is the reason you are in the attic again next summer. If a section is crushed flat, we replace that section, not the whole house, unless the rest of the flex is crumbling behind it.
A starved bedroom with one mashed run is a different job than a trunk that was undersized from day one. We tell you which one you have before we start cutting.
Modification: the house changed, the ducts did not
Bonus rooms, Florida rooms, a wall that moved, a return that was never big enough — the equipment can be the right size and the air still never makes it. Modifications are for that.
Typical work:
- Adding a return so the system is not sucking through a 14-inch hole on a two-story
- Resizing a supply run into a west-facing room that never catches up after 3 p.m.
- Splitting a dump that was feeding two rooms poorly so each one gets a real boot
- Rerouting around a new air handler or a tight mechanical closet
We measure. Static pressure and register throw tell us more than a thermostat screenshot. If the fix is a return, we will not sell you a new condenser to hide it.
Replacement: when patching only buys a season
Replacement is for old crumbling flex, a liner that is shredded down the run, or a trunk that cannot move the air no matter how well we tape the joints. We pull what failed, size the new runs to the rooms that exist now — not the sticker on a 1998 air handler — and seal the new joints with mastic.
Flex vs rigid is a house question, not a brand preference. Tight attics and long messy joist bays often stay flex, done right. Straight trunks and returns that need real volume often want rigid. We pick what the space can actually hold.
If the vents are filthy while we are replacing, we clean what stays. If the attic fill is thin, we want insulation on the same ticket — sealing leaky ducts and leaving the attic wide open is half a job. Free combined duct + insulation assessments. Licensed techs. Upfront pricing. Call (727) 353-9293. NolanAir.com.
Same-day when we can. A hanging duct in a 120° attic can be an emergency when the house will not cool; a planned replacement is a scheduled day, not a midnight special unless the system is down and we are available.
FAQs
When is it a duct repair versus a replacement?
Do you seal and insulate at the same time?
Is duct cleaning the same as duct sealing?
Do you use flex or rigid duct?
Depends on the attic, the run, and what air the room needs. Flex done right works in a lot of Tampa Bay houses. Rigid is better when we need volume, a straight trunk, or a return that is currently starving the system. We look at the space and tell you — we do not default to whichever is on the truck.
Can you add a return or resize a run without replacing everything?
Yes. That is a modification. One hot room with a mashed or undersized supply, or a two-story with a single small return, is often a targeted change. We check static pressure and airflow at the registers so we are not guessing. If the trunk itself is undersized, we will say replacement of that piece instead of pretending a new boot will fix it.
Should the ducts be cleaned when you replace them?
Clean what stays if it is genuinely dirty. Brand-new runs do not need a vacuum. We will not add duct cleaning as a default line on a replacement. If the remaining returns are coated, that goes on the quote with a reason.
Will you look at insulation while you are in the attic?
We should. Thin, settled fill over a sealed duct still lets the upstairs bake. Ask for the free duct + insulation assessment and we will price attic insulation next to the duct work so you are not paying for two attic trips. Call (727) 353-9293 or email service@nolanair.com.
Ductwork (Repair, Sealing & Replacement) Services We Offer
Ductwork carries conditioned air to your rooms and returns air to the system. Leaks, damaged runs and restricted returns can leave rooms uncomfortable even when the equipment is working. Inspection and airflow checks help distinguish a repairable problem from a system that needs redesign or replacement.
- Ductwork inspection and duct-leakage testing
- Air duct repair, replacement and new duct installation
- Duct sealing, including Aeroseal duct sealing
- Flexible duct repair and replacement; metal ductwork and duct board
- Duct design, redesign and modification
- Supply and return vent installation, vent repair and added return-air pathways
- Airflow balancing and troubleshooting for weak airflow or uneven room temperatures
- HVAC zoning systems and zone-damper repair
- Duct insulation and condensation or sweating-duct troubleshooting
Why these services matter
Sealing intact ducts addresses leakage, while torn or deteriorated runs may need replacement. Added returns, balancing and zoning can help address distribution problems. Duct insulation and condensation checks are also important in warm, humid attic spaces.
Monday–Friday, 8:00 AM–7:00 PM. After-hours and weekends are subject to availability.
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Get in Touch
Questions? Emergency? Or just ready to schedule service? Nolan Air is here to help—fast.