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 Banning
Duct sealing in Banning typically runs $450 – $1,200 for a whole-home system, with most jobs completed in a single visit. If you’re tired of dust settling on your furniture every time the Santa Ana winds kick up, or your utility bills keep climbing despite a newer HVAC unit, leaky ductwork is likely the culprit. Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate. Our crews dispatch from the Inland Empire office and serve Banning regularly, so we know the local housing stock, the wind patterns that tear ducts apart, and what it actually takes to fix them.
Why Hollis Air Duct Cleaning Is Banning’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Duct Sealing in Banning work is built on The Garrison Standard: written prices, written guarantees, and technicians who arrive uniformed, background-checked, and on time. Every job carries our 365-Day Done Right Promise – if the seal fails or the leak returns within a year, we come back and make it right at no charge, including a free second visit.
Our 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 Banning, you get a written price before any work starts, and that price does not move at the door. We’ve built our reputation on showing up inside the quoted window, pricing in writing, completing the job by the book, and leaving the site clean.
Duct Sealing Services in Banning
Duct Sealing Services in Banning address a problem most homeowners don’t know they have: conditioned air escaping through gaps, disconnected joints, and deteriorated seams before it ever reaches your rooms. In a typical Banning home, we find 20 – 30% air loss through leaky ductwork, which means your HVAC system works harder, your bills climb, and wind-driven sand and pollen get pulled into the return side through those same gaps. A typical whole-home duct sealing job in Banning runs $450 – $1,200 depending on accessibility, duct material, and the extent of damage we find.
Our Duct Sealing team uses mastic sealant and fiberglass mesh for rigid metal ducts, and specialized tape and aerosol sealant for flexible runs. Every joint is inspected, cleaned, and sealed to withstand the pressure cycling that comes with living in the San Gorgonio Pass.
Sheet-Metal Duct Restoration
Original sheet-metal ducts in Banning Heights and Sun Lakes homes often have joints that have worked loose over decades of thermal expansion and wind pressure. We clean the seams, apply mastic with reinforcing mesh, and test with a pressure gauge to confirm the seal holds under operating conditions.
Flexible Duct Repair and Sealing
Newer east-side subdivisions use flexible ducting that can sag, crush, or tear at connection points. We support sagging runs with proper hangers, replace damaged sections, and seal all connections so wind-driven debris stops collecting at low points.
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 Banning
Duct Insulation in Banning is a separate but related service: sealing stops air from escaping, while insulation stops thermal energy from bleeding through the duct walls. In Banning’s climate, uninsulated ducts in attics can lose 10 – 30% of their cooling capacity before the air ever reaches your vents. Duct insulation typically adds $300 – $800 to a sealing job, or $600 – $1,500 as a standalone service for accessible attic runs.
We use foil-faced fiberglass insulation with a vapor barrier, secured with mechanical fasteners rather than tape that degrades in attic heat. The goal is keeping 55-degree air at 55 degrees until it hits your register, not warming it to 70 degrees in a 140-degree attic.
Attic Duct Wrapping
Exposed supply ducts in Banning attics bake in summer heat. We wrap with R-6 or R-8 insulation, sealed at all seams, to reduce the thermal load on your HVAC system and even out room-to-room temperature differences.
Crawl Space and Garage Runs
Ducts in unconditioned spaces under Banning homes face different challenges: ground moisture, rodent activity, and temperature swings. We inspect for damage, seal all joints, then insulate to prevent condensation and energy loss.
Trusted Brands We Service in Banning
Hollis Air Duct Cleaning carries professional-grade equipment and materials on every Banning job. Our sealing work relies on mastic and mesh systems from Abatement Technologies, rotary brush systems from Rotobrush for pre-seal cleaning, and filtration products from Aprilaire and Guardsman to protect your home during the process. We stock the parts and materials locally, so there’s no waiting on special orders when we find a disconnected trunk line or crushed flexible run in your Banning Heights attic.
Common Duct Sealing Problems We See in Banning Homes
- Wind-pressure joint failure in mid-century metal ducts. Original sheet-metal duct joints in Banning Heights and Sun Lakes homes fail under the San Gorgonio Pass wind pressure cycling, opening gaps that pull in abrasive sand and let conditioned air escape into attics and crawl spaces.
- Debris trapping in sagging flexible duct. Newer east-side stucco subdivisions with flexible ducting trap wind-driven debris at sagging low points, and sealing those runs without correcting the sag just hides the problem while restricting airflow.
- Outdoor return grille blockage. Outdoor return grilles on the west side of town pack with sand and tumbleweed debris after major wind events, and if those grilles aren’t cleared before sealing, the system runs restricted and overheats the blower motor.
- Disconnected runs buried in insulation. We regularly find supply or return ducts that have separated at joints and been hidden under decades of blown-in insulation, pumping conditioned air into the attic while rooms go stale and hot.
Pricing for Duct Sealing in Banning, CA
Whole-home duct sealing in Banning typically costs $450 – $1,200. Single-zone repairs or partial sealing run $200 – $500. Duct insulation adds $300 – $800 when done with sealing, or $600 – $1,500 standalone for full attic runs. What moves the price: accessibility (crawl space vs. open attic), duct material (sheet metal takes more labor than flexible), extent of damage, and whether we find disconnected or crushed sections that need repair before sealing.
Every Hollis job starts with a written price before any work begins. No estimates that balloon once the technician is inside. We charge one flat price per system, agreed in writing, with no per-vent add-ons or surprise charges. Call (361) 326-5060 for a free estimate. We’ll inspect your ductwork, show you what we find with a camera, and give you a written price you can take to another company for comparison.
We Also Serve Cities Near Banning
Our crews regularly work in Beaumont, Calimesa, San Jacinto, and Yucaipa. If you’re just outside Banning city limits or own rental properties across the Pass area, we can schedule multiple locations and keep your pricing consistent under the same written guarantee.
Serving Banning, CA - Our Local Coverage Area
We’re based in the Banning 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 Banning
Banning sits in the San Gorgonio Pass wind corridor, so duct sealing here has to survive constant pressure cycling that pushes wind-driven sand through every leaky joint – unlike calmer inland metros where sealing is mostly about energy loss. The abrasive particulate wears on equipment, coats your home in grit, and forces your HVAC system to run longer to maintain temperature. Call (361) 326-5060 for a free estimate – we’ll show you exactly where your system is pulling in outside air.
Most original sheet-metal ducts in Banning Heights can be sealed successfully if the metal itself is intact and not rusted through. We clean the joints, apply mastic with fiberglass mesh, and pressure-test to confirm the seal holds. Full replacement is only necessary when sections are crushed, severely corroded, or inaccessible. Call (361) 326-5060 and we’ll camera-inspect your system to give you a straight answer.
Tell signs include grit or sand collecting on furniture near supply registers, reduced airflow from certain vents after wind events, and unusual blower noise from restricted returns. We were called to a mid-century home in Banning Heights where the homeowner complained that every Santa Ana wind event left a film of grit on the furniture. During our camera inspection of the original sheet-metal supply and return ducts, we found two disconnected runs and a crushed trunk line buried under blown-in insulation. After source removal with HEPA filtration and negative pressure, we sealed the joints with mastic and mesh, reconnected the trunk, and the homeowner reported the grit problem stopped on the next wind event. Call (361) 326-5060 if you’re seeing similar symptoms.
Yes, if the dust is being pulled in through leaks on the return side of your duct system. Sealing those gaps stops the suction that draws attic air, crawl space air, and outdoor particulate into your HVAC system. If the dust is coming from inside your home, sealing helps less, and you may need duct cleaning first to remove built-up debris. We can diagnose which problem you have with a camera inspection. Call (361) 326-5060 to schedule.
Duct sealing closes gaps and joints so air stays inside the duct; duct insulation wraps the duct to reduce heat transfer through the walls. In Banning’s climate, you often need both: sealing stops sand and pollen from entering and conditioned air from escaping, while insulation keeps 120-degree attic heat from warming your cooled air before it reaches the register. We price them separately so you can choose what your home actually needs. Call (361) 326-5060 for a written quote on either or both.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Banning since 2004.