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.
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AfterFast, Reliable Duct Sealing Across Richmond
Duct sealing in Richmond, TX typically runs $450 – $1,200 for a whole-home system, with most single-family homes falling in the $600 – $900 range depending on accessibility and the condition of the existing ductwork. We dispatch crews to Richmond from our Houston scheduling office, and our Duct Sealing in Richmond team covers neighborhoods from Greatwood to Pecan Grove, Aliana to Long Meadow Farms. If your vents blow weak, your upstairs rooms never cool evenly, or your energy bills have climbed without explanation, leaky ducts are the likely culprit. Call us at (361) 326-5060 for a free estimate with a written price before any work starts.
Why Hollis Air Duct Cleaning Is Richmond’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Duct Sealing crews have worked in Richmond homes long enough to know the local patterns. The clay soils around the Brazos River corridor shift seasonally, and we’ve found that movement cracks slab foundations, which in turn stresses duct runs in crawlspaces and garages. Richmond homeowners tell us they chose us because we show up inside the quoted window, price the job in writing before touching anything, and leave the site clean. Our 365-Day Done Right Promise covers every seal we apply: if a joint fails or a leak returns 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. Technicians are background-checked and uniformed, and they work to The Garrison Standard: arrive on time, price in writing, complete the job by the book.
Duct Repair in Richmond
Duct Repair in Richmond often means fixing what Richmond’s humidity and shifting soils have damaged. Flexible ductwork in newer Greatwood and Aliana builds can sag or tear where it hangs in hot attics. Older homes near the historic district may have galvanized steel trunks that have rusted through or separated at the seams. We assess whether a section needs patching, replacement, or full re-routing. Typical duct repair in Richmond runs $300 – $800 for localized fixes, with whole-section replacements reaching $1,100 – $1,800 depending on material and access.
Collapsed or Torn Flexible Duct
Flexible ductwork common in Richmond homes built after 1990 collapses when supports fail or when rodents chew through the outer layer. We replace the damaged section with new insulated flex, support it properly, and seal both ends with mastic and mechanical fasteners. Tape alone won’t hold in Richmond’s attic heat.
Rusted Galvanized Trunk Lines
Older Richmond homes with original metal ductwork often show rust where condensation pools in low spots. We cut out the corroded section, fabricate a replacement from galvanized sheet metal, and seal it into the existing system. This lasts longer than patching over rust that will spread.
Air Duct Sealing in Richmond
Duct Sealing - Richmond addresses the leaks that let conditioned air escape into your attic, crawlspace, or garage, and that pull unconditioned, humid air back into your system. Richmond’s location near the Gulf Coast means our marine layer pushes salt-laden moisture into duct runs that pass through unconditioned spaces. Sealing gaps and leaky joints in these homes matters more than in drier inland cities. A proper seal stops humid bay air from feeding mold inside the system. Typical air duct sealing in Richmond runs $450 – $1,200 for whole-home systems, with partial sealing of accessible trunk lines starting around $350.
Mastic and Mesh Joint Sealing
We brush water-based duct mastic into every accessible joint, then embed fiberglass mesh for reinforcement. Mastic remains flexible as ducts expand and contract with temperature swings. It outlasts foil tape in Richmond’s humidity, which is why we use it on every metal joint we can reach.
Air Handler Cabinet and Plenum Sealing
The biggest leaks in Richmond’s older systems are often at the air handler cabinet and return drops, not the visible trunk lines. We seal the blower compartment, filter rack, and plenum connections with foil tape rated for high velocity, then verify with a pressure test when possible.
Trusted Brands We Service in Richmond
Our Richmond crews carry professional-grade equipment from Nikro and Abatement Technologies for negative-air containment and precision sealing, plus filtration products from Honeywell and Aprilaire for homeowners upgrading their systems after sealing. We stock common duct sealing materials locally, so we’re not waiting on parts for standard Richmond jobs. For homes with Honeywell or Aprilaire whole-house filtration, we verify that sealed ducts won’t over-restrict airflow and damage the blower motor. Every tool and product we use is explained in plain terms before we start.
Common Duct Sealing Problems We See in Richmond Homes
- Sealing over wet or moldy duct interiors. Salt-air moisture in Richmond makes microbial growth common, and sealing over it traps the problem inside. We inspect with a camera first and clean before we seal.
- Taping collapsed flexible ductwork in older homes. In Richmond’s 1980s and 1990s builds, flexible ducts often sag or tear where supports failed. Tape or mastic on collapsed flex is a temporary lie; we replace the section properly.
- Ignoring the air handler while sealing only visible trunk lines. The cabinet and plenum seams leak more than most homeowners realize, especially in Richmond’s older systems where gaskets have hardened and cracked.
- Using the wrong sealant for Richmond’s humidity. Standard duct tape fails in attics that reach 140°F in summer; we use mastic and rated foil tape that holds under local conditions.
Pricing for Duct Sealing in Richmond, TX
A typical whole-home duct sealing in Richmond runs $600 – $900 for single-story homes with accessible attics or crawlspaces. Two-story homes or those with ductwork buried in slab or chase walls run $900 – $1,200. Partial sealing of accessible trunk lines and major joints starts around $350 – $500. Duct repair, when needed before sealing, adds $300 – $800. What moves the price: how much ductwork is accessible, whether we need to remove insulation to reach joints, and if the air handler cabinet requires sealing too. We give you one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Richmond
Our crews work throughout the west Houston metro, including Richmond and neighboring Rosenberg, Fulshear, Sugar Land, and Katy. Scheduling is coordinated from our Houston office, with local technicians dispatched to each area.
Serving Richmond, TX - Our Local Coverage Area
We’re based in the Richmond 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 Richmond
Sealing stops mold by blocking humid outside air from entering the system, but only if the ducts are clean first. In Richmond, our marine layer pushes salt-laden moisture into leaks; sealing those gaps removes the moisture source mold needs. We camera-inspect before sealing, and if we find growth, we clean it rather than trapping it inside. Call (361) 326-5060 for an inspection and written estimate.
Yes, if the metal is structurally sound. We brush mastic and mesh into accessible joints and seal seams with rated foil tape. If the galvanized has rusted through or separated badly, we repair or replace sections rather than sealing over damage that will spread. We assess this during our free estimate.
No. Sealing over oily residue without cleaning first traps the contamination inside and can make odors worse. In Richmond, refinery-adjacent areas sometimes see distinctive black, oily buildup in ducts. We remove that residue with specialized degreasing before any sealant goes on. The seal then keeps new contaminants out.
Small gaps and separated joints seal well. Collapsed flexible duct, rusted-through metal, or torn sections need repair or replacement first. We use camera inspection and pressure testing to show you exactly what we’re dealing with, then quote sealing, repair, or both with one flat price before work starts. Call (361) 326-5060 to schedule.
Yes, and in Richmond’s older systems, this is often where the biggest leaks hide. We seal the filter rack, blower compartment, and plenum connections with foil tape rated for high velocity. Ignoring these while sealing only trunk lines leaves major leaks active.
Ready to stop throwing conditioned air into your attic? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate on Dryer Vent Cleaning in Richmond or duct sealing. We’ll give you a written price before any work starts, seal every accessible leak by the book, and back it with our 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Richmond and the west Houston metro since 2004.