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 Pecan Grove
Duct sealing in Pecan Grove typically costs $450 – $1,200 for a whole-home seal, depending on system size and whether repair work is needed first. Most jobs take a half day, and we write the price down before any mastic goes on. Call (361) 326-5060 for a free estimate.
We serve Pecan Grove from our Houston office, and our crews know the area well. The master-planned sections off Old Pecan Grove Road, the newer builds near the golf course, and the original 1980s lots along the orchard lines all sit under the same dense pecan canopy that defines this community. That canopy matters to your ducts. Spring catkins and pollen load up return grilles here in a way they don’t in treeless subdivisions, and the Gulf Coast humidity keeps attics damp enough to soften tape and mastic within a season. We’ve sealed systems in Pecan Grove homes that were “finished” by builders but handed over with drywall dust still in the flex runs and plenum collars already torn from attic condensation. We spot it because we look for it.
Why Hollis Air Duct Cleaning Is Pecan Grove’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. Our Duct Sealing team operates under The Garrison Standard: arrive inside the quoted window, price in writing before work starts, complete the job by the book, and leave the site clean. No estimates that balloon once the technician is inside.
Pecan Grove homeowners call us back because we treat the orchard canopy as part of the system design. We know to pull the return grille after a dry spring and check for pecan catkin mats blocking the filter. We know the original sections often have flex duct from the 1990s that has sagged or kinked in hot attics. And we know that a newly built home here often needs sealing before its first spring because construction debris and orchard pollen compete for the same return path.
Every technician is background-checked and uniformed. Phones are answered by a live person 24 hours a day, 7 days a week. Every repair is covered by our 365-Day Done Right Promise: if the work fails within a year, we return and make it right at no charge, including a free second visit. The price is written down before any work starts. It does not move at the door.
Duct Repair in Pecan Grove
Duct Repair in Pecan Grove often starts with a call about uneven cooling or a spike in the light bill, and ends with our tech in the attic finding flex duct that has torn at the plenum, collapsed from a kink, or been chewed by rodents drawn to condensation on the liner. Most homes here are 1980s-2000s custom and semi-custom builds with long flex-duct runs through hot attic spaces, and the Gulf Coast humidity softens the liner and weakens tape bonds faster than in drier climates. We repair with the same tools commercial crews use: negative-air containment from Nikro, rotary brush systems from Rotobrush, and sealing products that hold up in damp attics.
When Repair Comes Before Sealing
A torn plenum collar or collapsed flex run cannot be sealed over. We inspect with a camera first. If the duct is structurally failed, we repair or replace the section, then seal the joints. In Pecan Grove’s older original sections, we’ve found 1990s flex duct so brittle it crumbles on contact. We quote the repair and the seal separately, both in writing, before any work starts.
Rodent and Moisture Damage
The damp Pecan Grove attic is attractive to pests. We find chewed liners and nesting material in the returns, especially on homes with large landscaped lots that back up to greenbelt. We remove the damaged section, install new flex with a rodent-resistant sleeve where needed, and seal all connections with mastic rated for high-humidity environments.
Air Duct Sealing in Pecan Grove
Air Duct Sealing in Pecan Grove means closing the leaks at plenum collars, supply and return connections, and register boots so conditioned air reaches the rooms that paid for it. In a community built on former pecan orchards, it also means sealing against an allergen load that treeless subdivisions simply don’t face. We use mastic applied under negative pressure to pull sealant into gaps, then verify with a pressure test. The equipment includes professional-grade tools from Abatement Technologies and Guardsman filtration products, the same brands commercial crews specify.
New-Build Handover Sealing
Builders in Pecan Grove often leave drywall dust, wood scraps, and insulation scraps in the ducts at handover. Sealing over that debris traps it against the air handler and blows it into the living space for months. We clean first, then seal. On a 2021 semi-custom build off Old Pecan Grove Road, we pulled the return grille and found pecan catkins layered over drywall dust, the filter bypassing since move-in. Our tech ran a camera inspection, found the plenum collar torn and the liner sagging from attic condensation, then sealed the plenum and re-taped all connections with mastic under negative pressure. With the orchard canopy overhead, we scheduled the next source removal for after the spring catkin drop.
Multi-Zone Systems
Many Pecan Grove homes have two or three HVAC zones with long flex runs to distant bedrooms. Each zone adds plenum connections, dampers, and branch takeoffs, every one a potential leak point. We seal zone by zone, pressure-test each independently, and balance the system so no zone is starved or overpressured.
Trusted Brands We Service in Pecan Grove
We stock parts and sealing products from Rotobrush, Nikro, and Guardsman for Pecan Grove jobs, which means faster turnaround and no waiting on a Houston warehouse pull for standard repairs. Rotobrush rotary brush systems handle the source removal before we seal. Nikro negative-air machines contain debris during the process. Guardsman filtration products protect the system after sealing is complete. We also source Honeywell, Aprilaire, and Abatement Technologies products for homeowners who want upgraded filtration after their ducts are sealed tight. If your system uses a specific brand of flex duct or register boot, we match it rather than forcing a generic fit.
Common Duct Sealing Problems We See in Pecan Grove Homes
- New-build debris in supply and return ducts. Drywall dust, wood scraps, and insulation leftovers from construction get sealed into the system at handover. We clean before we seal, every time. A sealed dirty system just blows construction debris into your living space for years.
- Gulf Coast humidity softening mastic and tape in hot attics. Pecan Grove attics stay damp most of the year, so standard tape fails within a season. We use mastic rated for high-humidity applications and verify the seal holds under pressure before we leave.
- Spring pecan catkins and pollen matting return grilles. The orchard canopy drops a load that treeless subdivisions like Sienna or Aliana never see. A clogged return forces the blower to pull harder, stressing the very joints we just sealed. We check grille loading as part of every service.
- Long flex-duct runs sagging or kinking in attic spaces. The large lots and multi-zone designs common in Pecan Grove mean long runs that can collapse or tear at supports. We find the restriction, repair the damage, then seal the reconnected joints.
Pricing for Duct Sealing in Pecan Grove, TX
A typical whole-home duct sealing in Pecan Grove runs $450 – $1,200. Single-zone homes at the smaller end of the local stock, often the original 1980s builds, tend toward the lower half. Larger semi-custom homes with three zones and long attic runs run higher, especially if repair work is needed first. Duct repair before sealing adds $200 – $600 depending on how many sections need replacement.
What moves the price: the number of HVAC zones, the condition of existing flex duct, whether the plenum collar needs replacement, and how much source removal is required before sealing can begin. We do not quote per-vent prices. We quote one flat price per system, agreed in writing before work starts. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Pecan Grove
Our Duct Sealing in Pecan Grove crew also travels to Houston, San Antonio, Dallas, and Fort Worth for larger commercial projects and multi-system residential jobs. Scheduling and dispatch are coordinated from our Houston office, but Pecan Grove homeowners get the same written pricing, same background-checked technicians, and same 365-Day Done Right Promise as every market we serve.
Serving Pecan Grove, TX - Our Local Coverage Area
We’re based in the Pecan Grove 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 Pecan Grove
Yes, often you do. Builders frequently leave drywall dust and construction debris in the ducts at handover, and the orchard canopy here drops pecan catkins and pollen that load up returns faster than in treeless subdivisions. Sealing over dirty ducts traps debris against your air handler. We recommend a camera inspection before your first spring in a new Pecan Grove home. Call (361) 326-5060 for a free estimate.
The Gulf Coast humidity keeps Pecan Grove attics hot and damp, so flex duct liners soften, sag, and tear at plenum collars within a few years. We start every job with a camera inspection. If the duct is structurally failed, we quote the repair separately, in writing, before any sealing begins. Call (361) 326-5060 to schedule an inspection.
Pecan Grove sits under a dense pecan orchard canopy that Sienna and Aliana, being treeless subdivisions, simply don’t have. Spring catkins and pollen mat the returns here in a unique pattern. Our techs know to pull the grille and check for that specific debris load. The housing stock is also older on average, with more 1990s flex duct in the original sections. Call (361) 326-5060 to discuss your home’s specific needs.
We seal zone by zone, testing each independently for pressure loss before moving to the next. Long flex runs get supported properly to prevent sagging, and every plenum collar, damper, and branch takeoff is sealed with mastic under negative pressure. The price is quoted per system, not per vent, and written down before work starts. Call (361) 326-5060 for a free estimate on your multi-zone home.
After sealing, we typically recommend a MERV 8 – 11 filter for Pecan Grove homes, with the higher end for homes directly under the heaviest orchard canopy. Higher ratings trap more pollen and catkin debris but can restrict airflow on older blowers. We match the filter to your system’s capacity and the local allergen load. Call (361) 326-5060 and we’ll check your blower specs on site.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Pecan Grove since 2004.




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