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 Georgetown
Georgetown’s rapid growth has left a housing stock split between historic downtown homes with original ductwork and newer master-planned communities, creating two distinct air duct challenges: dusty older systems in the historic district and construction debris in new builds. We’re the crew that handles both. Our Duct Sealing team dispatches from our Hartford office and serves Georgetown homeowners directly, arriving inside the quoted window with written prices and the tools to seal galvanized steel ducts from the 1920s or flex runs installed last year. Call us at (361) 326-5060 for a free estimate.
The city’s location on the Edwards Plateau means these duct systems contend with a unique mix of limestone dust and high humidity swings. We’ve found that homes near the Williamson County Courthouse square often have duct systems retrofitted into attics without proper sealing, pulling dust from that limestone-rich Hill Country soil straight into living spaces during hot, dry summer months. Newer developments like Sun City Texas and Wolf Ranch face the opposite problem: flex ductwork that wasn’t sealed properly during construction, leaking conditioned air into attics and crawl spaces before the homeowner ever moves in.
Why Hollis Air Duct Cleaning Is Georgetown’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our reputation in Georgetown is built on showing up squared away and leaving with the job done by the book. Our technicians are background-checked and uniformed, and every visit starts with a written price that doesn’t move once work begins.
Georgetown customers call us back because we understand their specific housing stock. We know the difference between sealing original galvanized steel in a historic district bungalow and tracking down leaks in a Wolf Ranch new build where the flex duct wasn’t properly connected at the plenum. That local knowledge saves time and money.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues. When you schedule Duct Sealing in Georgetown, we commit to a window and we arrive inside it. Every repair is covered by our 365-Day Done Right Promise: if the seal fails within a year, we return and make it right at no charge, including a free second visit.
Duct Insulation in Georgetown
Duct Insulation in Georgetown addresses a specific problem created by our humid subtropical climate and the way local homes were built. When uninsulated or poorly insulated ducts run through hot attics in July, the temperature differential causes condensation on the metal surface. That moisture drips onto ceiling drywall, breeds mold in fiberglass insulation, and forces your AC to work harder to push 55-degree air through a 140-degree attic. We insulate with formaldehyde-free fiberglass wrap or closed-cell foam, depending on the duct material and access, and we always seal first so we’re not trapping leaks inside a new insulation jacket.
A typical duct insulation job in Georgetown runs $800 – $1,800 for a standard single-system home, with larger homes or multiple zones running higher. Homes in Sun City Texas with extensive attic duct runs often land at the upper end. We price by the linear foot and the condition of existing ductwork, never with a teaser rate that jumps at the door.
When Attic Heat Becomes a Problem
Georgetown attics hit 130 – 150 degrees in August. Uninsulated flex duct loses 15 – 25% of its cooling capacity before the air reaches your vents. We see this most often in Wolf Ranch homes where builders met code minimums but didn’t account for our specific solar load. Adding R-8 insulation wrap drops that loss to under 5%.
Mold Prevention in Humid Months
High summer humidity in Georgetown means any condensation inside ductwork becomes a mold risk within 48 – 72 hours. We insulate after sealing because a leaky duct with new insulation is just a mold incubator wrapped in fiberglass. Our crews check with moisture meters before and after.
HVAC Duct Sealing in Georgetown
HVAC Duct Sealing in Georgetown is the single most cost-effective upgrade most homeowners can make to their system. The Department of Energy estimates the average home loses 20 – 30% of conditioned air through duct leaks; in Georgetown’s older homes with retrofitted attic systems, we’ve measured losses above 40%. We seal with mastic compound and fiberglass mesh for rigid ducts, and with UL-181 rated foil tape or aerosol sealant for flex runs, depending on access and leak location. Every joint, seam, and connection gets inspected with a smoke pencil or pressure test.
A typical residential duct sealing job in Georgetown runs $600 – $1,400 for a single-system home. Historic district homes with extensive galvanized steel ductwork and multiple retrofitted additions often run $1,200 – $2,200 due to access difficulty and the number of joints to treat. Newer homes in Wolf Ranch or Sun City Texas usually fall in the lower half of that range unless construction debris has damaged the flex runs.
Pressure Testing Before and After
We run a duct blaster test when possible to measure leakage in CFM25 before we start and after we finish. Georgetown’s limestone dust makes this especially valuable: if your system is pulling 300 CFM of attic air, we can show you exactly how much Hill Country particulate was entering your living space every hour.
Sealing Retrofitted Historic Systems
Homes near the Williamson County Courthouse square often have ducts that were cobbled into attics during 1970s or 1980s renovations, with gaps at the plenum and disconnected returns. We seal what we can reach and flag structural issues that need an HVAC contractor’s attention, never papering over a problem that needs redesign.
Trusted Brands We Service in Georgetown
Our trucks carry professional-grade equipment from Nikro, Honeywell, and Aprilaire, the same tools commercial crews use in hospitals and schools. For Georgetown homeowners, that means we don’t order parts and make you wait; we stock mastic compounds, foil tapes, insulation wraps, and replacement flex duct in common diameters. If your system uses Honeywell media filters or Aprilaire whole-house dehumidifiers, we can integrate sealing work with those components so you’re not paying for redundant service calls. We also coordinate with local HVAC contractors when a sealing job reveals that a compressor or coil issue needs attention first.
Common Duct Sealing Problems We See in Georgetown Homes
- Limestone dust infiltration in historic attics. Homes near downtown Georgetown pull fine caliche dust through gaps in retrofitted duct systems during our dry summer months. We seal the plenum and return connections first, then pressure-test to confirm we’ve stopped the pathway.
- Construction debris in new flex duct. Wolf Ranch and Sun City Texas builds often have flex runs clogged with drywall dust, wood chips, and insulation scraps that the builder never cleaned out. We remove what we can access and seal connections that were left loose during rough-in.
- Mold at flex duct connections. Georgetown’s humidity swings stress the tape and clamp connections at flex-to-metal joints. We replace failed tape with mechanical straps and mastic, not another layer of tape that will fail next season.
- Undersized returns in older homes. Historic district bungalows with original galvanized steel often have return ducts too small for modern equipment, creating negative pressure that pulls attic air through every gap. We seal what we can and document where duct redesign is the real fix.
Pricing for Duct Sealing in Georgetown, CT
We’re upfront about this because Georgetown homeowners have seen the bait-and-switch: a $99 coupon that becomes a $900 invoice once the van is in the driveway. We don’t work that way.
| Service | Typical Range in Georgetown |
|---|---|
| Standard residential duct sealing (single system) | $600 – $1,400 |
| Historic home with galvanized steel, extensive attic access | $1,200 – $2,200 |
| New construction flex duct sealing (standard home) | $500 – $1,000 |
| Duct insulation (single system) | $800 – $1,800 |
| Combined sealing + insulation package | $1,200 – $2,800 |
What moves you within these ranges: the linear footage of ductwork, the number of systems, attic access difficulty, and whether we need to remove old failed tape or insulation first. We inspect, we write the price, you approve it, then we work. No per-vent pricing, no add-ons at the door. Every job gets before-and-after photos of your actual ducts, not stock images. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Georgetown
Our crews work throughout Fairfield County and beyond. We regularly handle Air Duct Cleaning in Georgetown and surrounding areas, and we also provide Dryer Vent Cleaning in Georgetown for homeowners in Ridgefield, New Canaan, Bethel, and Norwalk. Scheduling is coordinated from our Hartford office, with local dispatch to your area.
Serving Georgetown, CT - Our Local Coverage Area
We’re based in the Georgetown 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 Georgetown
We typically schedule Georgetown appointments within 3 – 5 business days, with some flexibility for urgent situations like visible mold or a system that’s stopped cooling entirely. Call (361) 326-5060 and we’ll find the next available window that works for your schedule.
Yes, we work throughout Georgetown, from the homes near the Williamson County Courthouse square to new developments like Sun City Texas and Wolf Ranch. Historic district access can be tighter, so we may need a slightly longer window to navigate smaller attics, but we don’t decline jobs based on home age.
We don’t promise same-day dispatch, but our phones are answered by a live person 24/7. If your system has failed due to a disconnected duct or you’re seeing water damage from condensation, we’ll prioritize your appointment and often get a technician out within 24 – 48 hours.
Georgetown pricing runs roughly comparable to Round Rock and slightly below Austin metro rates, largely because our travel time from the Hartford office is shorter and attic access in Georgetown’s newer subdivisions is generally straightforward. Historic homes cost more to seal here than in newer cities like Cedar Park because of the galvanized steel and retrofit conditions.
Every duct sealing job is covered by our 365-Day Done Right Promise in writing. If any sealed joint fails, if mastic cracks, or if a connection we treated begins leaking again within one year, we return and make it right at no charge. That includes a free second visit, not a partial credit or argument. The guarantee transfers if you sell the home, which Realtors in Georgetown have told us helps at closing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Georgetown since 2004.




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