Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Fast, Reliable Duct Sealing Across Estero
Duct sealing in Estero typically runs $450 – $1,200 for a whole-home system, and we price it in writing before any work starts. If your vents blow musty air, your energy bills have climbed, or your home was closed up through a humid summer, leaky ducts are likely pulling attic moisture and contaminants into your living space.
We’re the crew Hollis Air Duct Cleaning sends to Estero from our South Florida dispatch office, and we know the territory. We’ve sealed ducts in Pelican Sound, Grandezza, and The Brooks. We understand how Estero’s airtight 2000s-era homes behave differently than older Florida construction, and we carry the documentation tools your insurer wants to see if storm water has gotten into your system. Call us at (361) 326-5060 for a free written estimate.
Why Hollis Air Duct Cleaning Is Estero’s Preferred Duct Sealing Company
We’ve been doing this since 2004 as part of the Garrison Partners family, and our Duct Sealing team serves Estero under The Garrison Standard. That means arriving inside the quoted window, pricing in writing before we touch anything, and leaving the site clean.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Every job carries our 365-Day Done Right Promise: if the work fails within a year, we come back and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues.
We don’t compete on teaser coupons. We compete on discipline: show up when we said, price it before we touch it, do it by the book. That’s The Garrison Code our technicians follow on every Estero job.
Duct Insulation in Estero
Duct Insulation in Estero addresses a problem built into most local homes: flexible ductwork running through unconditioned attics in a subtropical climate where HVAC runs April through October. When insulation degrades or gets wet, your cooled air warms before it reaches the register, your system runs longer, and condensation forms on the exterior of unwrapped metal.
A typical Duct Insulation job in Estero runs $350 – $800 depending on linear footage and accessibility. We use professional-grade materials from Abatement Technologies and Guardsman, not hardware-store wrap.
When Attic Heat Kills Efficiency
Estero attic temperatures routinely hit 140°F in July. Fiberglass insulation on flex duct compresses over time, creating thin spots where thermal transfer spikes. We measure supply air temperature at the register and compare it to air handler output to find the loss.
Post-Storm Insulation Replacement
After water intrusion, saturated insulation won’t dry properly in Estero’s humidity. We strip contaminated wrap, treat the duct for mold, and reinstall with vapor-barrier-rated insulation sealed at every seam.
HVAC Duct Sealing in Estero
HVAC Duct Sealing in Estero fixes the leaks that make your system work harder than it should. In Estero’s planned communities, the tight building envelope that keeps conditioned air inside also creates negative pressure when supply ducts leak, pulling attic air, humidity, and pests through gaps in return plenums and boot connections.
A typical HVAC Duct Sealing job in Estero runs $450 – $1,200 for a whole-home system. We seal with mastic and fiberglass mesh, not tape that dries and fails. Every connection gets verified under negative pressure before we call the job complete.
Pressure Balance in Tight Homes
Newer Estero homes with airtight envelopes need balanced supply and return sealing. Seal only the supply side and you worsen the vacuum effect that draws attic contaminants through unsealed returns. We test both sides.
Documentation for Insurance
When storm water has entered the system, we photograph every stage, measure moisture content in duct insulation, and produce a written report that distinguishes cleanable leaks from replacement-level damage. Adjusters in Estero know our format.
Trusted Brands We Service in Estero
We stock parts and materials from Aprilaire, Abatement Technologies, and Guardsman for Estero jobs, which means faster turnaround and no waiting on shipped components. Our equipment roster includes Rotobrush rotary brush systems for pre-sealing cleaning and Nikro negative-air machines for contained, HEPA-filtered work environments. These are the same tools commercial crews use on hospitals and schools. For Estero homeowners, it means we can complete most sealing jobs in a single visit without leaving to source materials.
Common Duct Sealing Problems We See in Estero Homes
- Storm-driven water intrusion wicks into attic flex duct, then summer humidity keeps it wet. The ducts look fine from the register but the insulation is saturated and already growing mold. We use moisture meters and borescope cameras to find what eyes can’t see.
- Newer Estero homes with tight envelopes develop pressure imbalances. Sealing only the supply side pulls attic air and pests through unsealed return plenum gaps. We seal both sides and verify balance with a manometer.
- Off-season vacancies let rodents and insects nest in undisturbed duct runs. Standard cleaning without source removal and sanitation just redistributes the contamination after sealing. We remove contaminated flex, sanitize the pathway, then seal.
- Flexible trunk lines sag between attic trusses, creating low spots where condensation pools. In Estero’s humidity, these pools breed mold and weaken the duct wall. We support and re-slope during sealing work.
Pricing for Duct Sealing in Estero, FL
Whole-home duct sealing in Estero typically runs $450 – $1,200. Duct insulation runs $350 – $800. What moves the number: linear footage of ductwork, accessibility in the attic, whether we’re sealing existing ducts or replacing storm-damaged sections, and if negative-air containment with HEPA filtration is required due to contamination.
We give one flat price per system, agreed in writing before work starts. No per-vent pricing. No invoice that balloons once the van is in your driveway. We also provide before-and-after photos of your own ducts so you see what was done.
Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Estero
Our crews work throughout Lee and Collier counties. If you’re in Estero or nearby Bonita Springs, Fort Myers Beach, Fort Myers, or Lehigh Acres, we cover your area with the same written pricing and 365-Day Done Right Promise.
Serving Estero, FL - Our Local Coverage Area
We’re based in the Estero 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 About Duct Sealing in Estero
It depends on where the water reached and how long it sat. If storm water touched the interior duct surface or insulation stayed wet more than 48 hours, we recommend replacement because mold grows fast in Estero’s humidity. If water only affected the exterior insulation and we can verify dry interior surfaces with a borescope, sealing and re-insulation may suffice. We document the distinction with photos and moisture readings for your insurer. Call (361) 326-5060 and we’ll assess it.
We produce a dated, photo-accompanied report showing moisture content percentages, contamination type, and recommended scope of work. Adjusters in Estero recognize our format because it distinguishes cleanable from non-cleanable damage using industry-standard criteria, not opinion. The report goes to you and your adjuster simultaneously.
Closed-up homes with running or idle HVAC create stagnant, humid conditions in attic ductwork. Without regular air circulation, moisture condenses on cool duct surfaces, and rodents or insects seeking shelter from heat enter through gaps in unsealed plenums. When owners return, the first cooling cycle distributes musty air and allergens throughout the house. Sealing the plenum and boots before the off-season prevents the intrusion.
Yes, if the pressure imbalance is caused by duct leakage. Tight homes in communities like Grandezza and The Brooks depend on balanced supply and return airflow. When return ducts leak in the attic, the system pulls unconditioned, contaminated air into the living space. Comprehensive sealing of both supply and return sides restores designed pressure balance and stops the attic air intrusion.
We do on any job where contamination is present or suspected, which includes most post-storm and post-vacancy work in Estero. Our Nikro negative-air machines maintain containment so disturbed particles don’t enter your living space. HEPA filtration captures 99.97% of particles down to 0.3 microns. We explain the setup before we start so you know why it’s on your job.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Estero since 2004.




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