Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Aldine
Duct sealing in Aldine typically runs $450 – $950 for most single-story homes, depending on how much of the system is accessible and how many leaks our camera inspection finds. The work itself usually takes one day, and we schedule Aldine jobs every week. If your registers blow weak air, your AC short-cycles, or one bedroom stays hot while the living room freezes, there’s a good chance your ducts are leaking. Call Hollis Air Duct Houston at (713) 936-5800 and we’ll find exactly where the air is going.
We work in Aldine constantly. Not “we cover Aldine from an office somewhere else” – our crews are in Aldine neighborhoods every week, and our scheduling team knows the area well enough to quote realistic arrival windows. When you call, you talk to a live person who can book a visit and give you a written price before we start any work.
Why Hollis Air Duct Houston Is Aldine’s Preferred Duct Sealing Company
Aldine homeowners call us because we write the price down before we touch anything, and that number doesn’t change when the technician walks into the crawlspace. That’s rare in this trade. We’ve worked in Aldine long enough to know what’s under these houses: pier-and-beam crawlspaces, original flex duct from the 60s and 70s, and seams that haven’t held air since the first Bush administration. We don’t guess – we send a camera down the duct, find the exact failure, and show you the photos.
Every Hollis technician is background-checked and uniformed, so the person under your house is someone we’ve vetted and you can identify. Our phones are answered by a live person 24 hours a day, seven days a week – no voicemail tag, no “leave a message and maybe we’ll call back next Tuesday.” And every job is covered by the 365-Day Done Right Promise: if the sealing fails within a year, we come back and fix it at no charge. Roy Castellanos leads our team, and that guarantee is his name on the line.
Styles & brands we work with
HVAC Duct Sealing in Aldine
HVAC Duct Sealing in Aldine means finding every place conditioned air escapes between your air handler and your registers – and closing those gaps with mastic, foil tape, or both. In Aldine’s older homes, that usually means sealing takeoffs at the plenum, joints in the trunk line, and connections at supply boots. We also seal the return side, because a leaky return pulls hot, humid crawlspace air into your system and forces it to work twice as hard. The cost to seal an average Aldine single-story system runs $450 – $750 when ducts are accessible; add $150 – $300 if we’re removing and re-wrapping insulation around sweating ductwork.
Accessible Duct Sealing
When ducts are exposed – in a crawlspace, open attic, or utility closet – we can seal them directly. We clean the surface, apply mastic to every seam and joint, and reinforce with foil tape where needed. This is the most common scenario in Aldine, where pier-and-beam construction puts ductwork within reach under the floor.
Sealing at the Boot and Plenum
A surprising amount of Aldine air loss happens at the connection points: where the duct meets the supply register and where the trunk line leaves the air handler. We remove the register grille, seal the gap between boot and drywall with mastic, and reattach. At the plenum, we seal every takeoff collar. This alone can restore noticeable airflow to weak rooms.
Duct Repair in Aldine
Duct Repair in Aldine usually involves more than sealing – it means reconnecting runs that have separated, replacing crushed flex duct, and sometimes re-supporting sagging sections under the floor. The humid air in Aldine crawlspaces rusts metal takeoffs and degrades old duct tape until joints simply let go. A typical duct repair job in Aldine runs $300 – $700, depending on how many runs need work and whether we’re replacing sections of flex duct. When repairs and sealing are done together, the price for a full system often lands between $800 and $1,200.
Crawlspace Duct Reconnection
This is the bread-and-butter Aldine repair. We find the disconnected or crushed section with a camera, cut out the bad flex, install new R-6 or R-8 flex duct, and seal both ends with mastic. Then we strap the new run to the joists so it doesn’t sag again. The airflow difference is immediate.
Attic Condensation Repair
In Aldine attics with minimal insulation, ductwork sweats. The insulation wrap gets soaked, falls away, and bare metal drips onto ceiling drywall. We remove the failed insulation, dry the duct, seal any leaks, and wrap it in new, properly fitted insulation with a vapor barrier facing the attic air. This stops the drips and the mold risk that comes with them.
Trusted Brands We Service in Aldine
We service and repair duct systems built around equipment from Honeywell, Aprilaire, and other major manufacturers, and we carry the mastic, foil tape, flex duct, and insulation designed to work with those systems on our trucks. Our crews use Rotobrush and Nikro inspection and cleaning equipment to see inside your ducts before and after sealing, which means you get photos of the work, not a verbal summary. When an Aldine job calls for a new filter or component, we stock common Honeywell and Guardsman parts so we can finish the repair the same day instead of scheduling a follow-up.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Aldine Homes
- Crushed flex duct under pier-and-beam homes. Flex runs sag between joists, kink, and choke airflow. We find this in most Aldine crawlspaces we enter, and the fix is re-routing, re-strapping, and sealing – or replacing the run entirely.
- Peeling 1970s duct tape at plenum seams. That gray tape dries out under attic heat and lets go. Seams at the plenum and takeoffs open up and leak 20 – 30% of conditioned air before it ever reaches a register.
- Sweating attic ductwork soaking insulation. Aldine’s humidity means bare duct metal condenses water. The insulation gets heavy, tears, and falls off. We replace it, seal the ducts underneath, and stop the ceiling stains.
- Humid crawlspace air pulled into returns. When the return side has gaps, the blower draws in musty, humid air from under the house. You smell it at the registers. Sealing the return side stops that air from becoming your indoor air.
Pricing for Duct Sealing in Aldine, TX
What you’ll pay depends on what we find when we look. Here’s what Aldine homeowners can expect:
- Sealing exposed accessible ductwork only: $450 – $750
- Sealing plus insulation repair or replacement on sweating ducts: $650 – $950
- Duct repair with reconnection of separated runs: $300 – $700
- Full crawlspace duct overhaul – repair, seal, re-insulate, re-strap: $1,000 – $1,800
These are all-in prices. No per-vent pricing, no add-on surprises when the job’s half done. We write the price down before work starts, and it doesn’t move. Call (713) 936-5800 for a free estimate on your Aldine home.
We Also Serve Cities Near Aldine
Our crews regularly work Aldine and the surrounding communities, including Duct Sealing in Aldine plus Houston, Spring, Humble, and League City. If you’re in one of those areas and need duct work done, the same written-pricing rule applies: you know the cost before we start. Call and we’ll get you scheduled.
Serving Aldine, TX - Our Local Coverage Area
We’re based in the Aldine 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 Aldine
We access the crawlspace through the existing access panel or an exterior vent. No floor tear-out is needed. Most Aldine pier-and-beam homes have enough crawlspace clearance for a technician to work under the house, seal joints with mastic, and re-strap sagging runs. If clearance is tight or the access is blocked, we’ll tell you before starting and adjust the plan. Call (713) 936-5800 and we’ll inspect your crawlspace for free.
It depends on the condition, but if the inner liner is torn, the insulation is disintegrating, or the duct has collapsed, sealing won’t save it – it needs replacement. We’ll show you camera footage so you can see the damage yourself. If the duct is intact but leaking at joints, sealing with mastic and foil tape restores most of the lost airflow at a lower cost. For an exact answer on your home, call (713) 936-5800.
Humid attic air hits the cold metal duct surface and condenses, just like a glass of iced tea on a Houston summer day. If the duct insulation is thin, torn, or soaked through, the condensation finds the drywall. We fix it by sealing the ducts, replacing the insulation with a properly sized wrap, and making sure the vapor barrier faces the attic air. That stops the dripping and the ceiling damage it causes.
In Aldine’s older homes, we regularly measure 20 – 35% leakage before sealing – sometimes more when ducts have fully disconnected. That’s one of every three or four dollars of conditioned air going into the crawlspace or attic instead of your living room. After sealing, leakage typically drops to under 10%, which is the NADCA-recommended range. The difference shows up as more even room temperatures and a blower that no longer runs constantly.
Yes, usually. The musty smell comes from humid crawlspace air being pulled into the return side of your duct system and blown through the house. Once we seal the return ducts, that air stops entering. If the smell persists after sealing, the ducts themselves may have mold growth from years of humid air – and we can clean them with our negative-air equipment. Call (713) 936-5800 for a free inspection.
Written by Roy Castellanos, Owner at Hollis Air Duct Houston, serving Aldine and surrounding communities with written pricing and the 365-Day Done Right Promise.