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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Cinco Ranch
Duct sealing in Cinco Ranch typically costs $450 – $1,200 for a whole-home seal, depending on how many flex-duct joints need reconnection and whether we find construction debris or boot-collar separations in the attic. Most jobs finish in a single visit, and we give you a written price before any work starts. Call (361) 326-5060 for a free estimate.
We’ve worked in Cinco Ranch long enough to know the pattern. The master-planned sections off Cinco Ranch Boulevard, the newer builds in Grand Lakes, the two-stories along Mason Road – they all share the same story. A home built in 2005 or 2015 looks pristine, the ducts look clean, but the clay soil beneath has been moving season after season. That movement pulls flex-duct collars loose in the attic, and conditioned air starts bleeding into spaces nobody lives in. Dispatch and scheduling for our Cinco Ranch jobs are coordinated from our Houston office, but our crews live and work this corridor. They know which attic hatches in which phase of Cinco Ranch are likely to show separated boot collars before we even pull the ladder down.
Why Hollis Air Duct Cleaning Is Cinco Ranch’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our standard hasn’t changed: show up inside the window, price it in writing, do it by the book. In Cinco Ranch, that standard matters more than in older suburbs because the homes look too new to have problems. Homeowners here call us after their second or third summer of rising electric bills, after the HVAC tech has already replaced the capacitor and charged the refrigerant and the house still won’t hold temperature. We bring a camera, we find the separated collar, and we fix what the eye can’t see.
Our technicians are background-checked and uniformed, and they arrive with professional-grade equipment – Rotobrush rotary systems, Nikro negative-air machines, and sealing products from Abatement Technologies and Guardsman. The price we write down before we start is the price you pay. If our seal fails within a year, we come back at no charge. That’s the 365-Day Done Right Promise, and it’s in writing on every Cinco Ranch job.
Phones are answered by a live person, 24 hours a day. No voicemail loops, no callback queues, no waiting until Monday to schedule.
Duct Sealing Services in Cinco Ranch
Duct Sealing Services in Cinco Ranch focus on reconnecting and sealing the flex-duct joints that separate when foundation movement pulls boot collars loose in the attic. We use mastic and mechanical clamps on collar connections, seal torn inner liners, and pressure-test the system afterward to confirm static pressure drops to spec. A typical whole-home duct sealing job in Cinco Ranch runs $450 – $1,200, with simpler single-zone repairs starting around $280. We find construction dust and drywall debris in newer Cinco Ranch homes more often than owners expect – builders rarely clean ducts before handover, and that debris hides collar separations until a camera inspection reveals them.
Camera-First Inspection
We run a borescope through every accessible trunk line and boot before we quote. In Cinco Ranch’s two-story homes with attic flex runs, this catches collar separations that look fine from the register. The camera shows us exactly what needs sealing, so your written price reflects actual work, not a guess.
Post-Seal Pressure Testing
After we seal, we measure static pressure at the air handler. If it doesn’t drop, we keep looking. The Garrison Standard requires us to verify our work, not just declare it done. You’ll see the before and after numbers.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Duct Insulation in Cinco Ranch
Duct Insulation in Cinco Ranch addresses the unconditioned attics where most flex duct runs live. The humid subtropical climate here keeps those attics hot and damp for eight months of the year. When insulation degrades or gets torn during service, the duct loses thermal barrier and the HVAC works harder to push conditioned air through. We replace or supplement insulation on accessible trunk lines and plenums, using materials rated for the moisture load this climate generates. Duct insulation in Cinco Ranch typically runs $600 – $1,800 depending on linear feet and accessibility, and we always inspect the underlying duct condition before wrapping – insulation over a separated collar just hides the leak.
Vapor-Barrier Assessment
Cinco’s humidity means insulation without intact vapor barrier traps moisture against the duct. We check every wrap for tears, and we won’t bury a compromised duct in new insulation without sealing it first. That’s how you avoid the musty smell that brings homeowners back to us six months later.
Attic Access Strategy
Most Cinco Ranch two-stories have attic hatches over the hallway or garage. We map the flex-run layout before we pull anything down, and we protect your finishes. No scuff marks, no dust on the landing. Site left clean – that’s in The Garrison Code.
Trusted Brands We Service in Cinco Ranch
We carry sealing and filtration products from Abatement Technologies, Guardsman, and Aprilaire on our Cinco Ranch trucks, and we stock collars, clamps, and mastic rated for the flexible duct systems common in this area. When we find a failed boot collar in a Grand Lakes attic or a torn vapor barrier in a newer section off Peek Road, we don’t need to leave and come back. The parts are on the van, and the turnaround is same-visit. Our equipment roster includes Rotobrush rotary brush systems for source removal before sealing, and Nikro negative-air machines to maintain containment while we work. These are the same tools commercial crews use, and we explain what each one does while it’s running.
Common Duct Sealing Problems We See in Cinco Ranch Homes
- Foundation movement separates boot collars. Cinco Ranch’s expansive clay soils swell in wet seasons and shrink in dry ones. That seasonal cycle pulls flex-duct inner liners off their ceiling boot collars in the attic. The homeowner feels weak airflow and rising bills, but the registers look clean.
- Construction debris masks collar failures in newer homes. Builders in Cinco Ranch rarely clean ducts before handover. Drywall dust and debris clog registers and hide separated collars until a camera inspection reveals the real problem. The house looks new, but the duct system doesn’t perform like it.
- Humidity degrades tape seals before mastic is applied. Year-round dampness in Cinco Ranch attics means foil tape alone fails faster here than in drier climates. We remove failed tape, clean the joint, and seal with mastic rated for wet conditions – tape is temporary, mastic is permanent.
- Two-story designs create long flex runs with multiple joints. The large two-story homes common in Cinco Ranch have extensive attic duct networks. Every joint is a potential failure point, and the longest runs show the biggest pressure drops when collars separate.
Pricing for Duct Sealing in Cinco Ranch, TX
A typical whole-home duct sealing in Cinco Ranch runs $450 – $1,200. Single-zone repairs with one or two separated collars start around $280. Full resealing of a large two-story with extensive attic flex runs, including camera inspection and post-seal pressure testing, can reach the upper end of that range. What moves the price: how many boot collars need reconnection, whether we find construction debris requiring source removal first, and attic accessibility. We do not quote per-vent or per-register pricing. One flat price per system, agreed in writing before we touch anything. Estimates are free, and we show you the camera footage so you see what we see. Call (361) 326-5060 for an exact quote on your Cinco Ranch home.
We Also Serve Cities Near Cinco Ranch
Our crews handle Duct Sealing across the metro area, including Houston, San Antonio, Dallas, and Fort Worth. If you’re searching for Duct Sealing in Cinco Ranch or anywhere in between, the same Garrison Standard applies: written price, written guarantee, background-checked technicians.
Serving Cinco Ranch, TX - Our Local Coverage Area
We’re based in the Cinco Ranch 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 Cinco Ranch
Yes, and it’s more common than you’d think. Construction debris left by builders often hides separated boot collars, and Cinco Ranch’s clay soils start moving foundations within the first few years. We’ve found significant leaks in homes less than five years old. Call (361) 326-5060 for a camera inspection – estimates are free.
The soil swells when wet and shrinks when dry, creating seasonal foundation movement. That movement transfers to the framing, which pulls flex-duct boot collars loose in the attic. The inner liner separates from the collar, and conditioned air vents directly into the attic space. We re-clamp and mastic-seal these joints, then pressure-test to confirm the fix.
Builders should have cleaned construction dust and drywall debris from the duct system and verified boot-collar connections after final framing settlement. Most don’t. The debris you find at your registers is often the visible fraction of what’s hiding collar separations deeper in the attic. We clean first, then inspect, then seal – the sequence the builder skipped.
Yes. We work through existing attic hatches, typically over the hallway or garage. No drywall removal, no finished-space disruption. The camera and our tools fit through the hatch, and we protect your floors and finishes on the way up and down. Site left clean – that’s The Garrison Code.
It can, but only if we address the source first. Separated collars in humid attics pull hot, damp air into the system when the blower cycles off. Sealing the collars stops that infiltration. If we find biological growth, we’ll recommend source removal and proper vapor-barrier insulation – sealing alone won’t fix what’s already growing. Call (361) 326-5060 and we’ll assess which problem you actually have.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Cinco Ranch since 2004.