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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After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Tustin
Duct sealing in Tustin typically runs $450 – $1,200 for a whole-home system, with most jobs completed in a single scheduled visit. We dispatch crews from our Los Angeles office and serve Tustin neighborhoods from Old Town to Tustin Legacy with the same written-price, no-surprise standard we’ve held since 2004. Call (361) 326-5060 for a free estimate.
We know Tustin’s duct problems because we’ve worked them. The Santa Ana winds that funnel through the Santa Ana Mountains gap don’t just rattle your patio furniture; they force fine mineral dust through every loose joint and cracked plenum in your system. In foothill-facing homes near Jamboree Road and the Cleveland National Forest edge, we’ve found return plenums coated in a distinct orange-brown film after wind events. That dust doesn’t stay put. It migrates.
Our Duct Sealing team treats Tustin as a local market, not a dispatch radius. We carry mastic, foil tape, and mechanical fasteners sized for both the 1920s gravity-furnace ducts in Old Town bungalows and the flex-duct systems in Tustin Ranch and Tustin Legacy tract homes. Same city, different hardware, different approach.
Why Hollis Air Duct Cleaning Is Tustin’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Tustin customers come back because we write the price down before we touch anything. The 365-Day Done Right Promise means if our seal fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Phones are answered by a live person 24 hours a day, 7 days a week, not a voicemail loop. We arrive inside the quoted window, price in writing, complete the job by the book, and leave the site clean. That’s The Garrison Standard.
We don’t compete on the lowest teaser price. We compete on discipline: show up when we said, price it before we touch it, do it by the book. For Tustin homeowners who’ve been burned by no-shows or prices that jumped at the door, that operational clarity matters more than a coupon.
Air Duct Sealing in Tustin
Air Duct Sealing in Tustin means closing the gaps, joints, and seams in your forced-air system so conditioned air reaches your rooms instead of your attic or crawl space. The job involves inspecting accessible ductwork with a camera, cleaning dust-loaded surfaces so sealant adheres properly, then applying mastic paste, foil tape, or mechanical fasteners depending on your duct type. In Tustin’s market, whole-home sealing typically costs $450 – $1,200, with partial repairs on isolated leaks starting around $180.
Most Tustin homeowners call us after noticing uneven heating, dust buildup around vents, or utility bills that climbed without explanation. The Santa Ana wind events that hit Tustin’s foothill neighborhoods accelerate the problem by pressurizing return leaks and forcing that orange-brown mineral dust deep into the system.
When Sealing Comes Before Cleaning
Some crews seal over dirty ducts to save time. We don’t. Sealing over dust-loaded interiors, especially that Santa Ana film, traps shedding particles that defeat the seal within a season. We remove the source first, then seal. Takes longer. Lasts longer.
Pressure Balance and Modern Homes
Tustin Ranch and Tustin Legacy homes were built to HERS efficiency standards. Over-seal their flex-duct runs and static pressure climbs, forcing the blower motor harder and cutting into the efficiency you paid for. We measure before and after. The number matters.
Duct Sealing Services in Tustin
Duct Sealing Services in Tustin cover everything from spot repairs on flex-duct collars to full-system mastic sealing on rigid metal trunk lines. We work on homes along Red Hill Avenue, the older courts off Main Street in Old Town, and the newer developments near The District at Tustin Legacy. Pricing stays in the same $450 – $1,200 range for whole-home work, with smaller repairs proportionally less.
Our process starts with a camera inspection so you see what we see. Then we clean, then we seal, then we test. Written price before any work starts. The 365-Day Done Right Promise covers every seal we apply.
Old Town Bungalow Systems
Original gravity-furnace ducts in Old Town Tustin are often asbestos-wrapped and undersized. Tape-only patches fail here. We use mastic with mechanical fastening, working within California’s asbestos abatement protocols when wrapping is disturbed. Different era, different method.
Foothill-Facing Tract Homes
Homes near Jamboree and the Tustin Ranch Golf Club catch the brunt of Santa Ana winds. After a February event, a Tustin Ranch homeowner near the foothills called about a gritty smell every time the heat kicked on; our tech ran a camera inspection and found the return plenum and flex-duct joints caked in the same orange-brown windblown film we see across the foothill-facing tracts. We set up negative pressure with HEPA filtration, brushed the plenum and supply/return ducts with agitation tools, then sealed the leaking flex-duct collars and air-handler cabinet seams with mastic and foil tape to stop the dust from re-entering the system.
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.
Trusted Brands We Service in Tustin
We stock parts and materials from Aprilaire, Abatement Technologies, and Guardsman for Tustin jobs, plus we run Rotobrush rotary systems and Nikro negative-air machines for the cleaning phase that must precede proper sealing. Local inventory means we don’t wait on shipping when your system is open and your home is exposed. For Tustin homeowners, that translates to one scheduled visit instead of two. We also source Honeywell and Aprilaire filtration upgrades when sealed systems need better particle control against that recurring Santa Ana dust load.
Common Duct Sealing Problems We See in Tustin Homes
- Sealing over dust without source removal first. The orange-brown Santa Ana film keeps shedding into the airstream and defeats the seal within a season. We see this when homeowners hire cut-rate crews who skip the cleaning phase. The tape looks fine in October. By January, it’s peeling.
- Tape-only patches on Old Town bungalow gravity-furnace ducts. Undersized runs and original asbestos-wrapped joints need mastic and mechanical fastening, not adhesive. Temperature swings in those old metal trunks cycle the tape loose. We’ve re-repaired too many of these.
- Over-sealing flex-duct in Tustin Ranch and Tustin Legacy homes. Those tract systems were HERS-rated for specific static pressure. Seal every joint too tight and the blower motor compensates, drawing more amps and shortening its life. We measure. We don’t guess.
- Ignoring the air-handler cabinet seams. In tightly sealed modern Tustin homes, the biggest leak is often the furnace or air-handler cabinet itself, not the duct runs. We inspect and seal these as standard practice, not an upsell.
Pricing for Duct Sealing in Tustin, CA
Whole-home duct sealing in Tustin runs $450 – $1,200. Spot repairs on isolated leaks start around $180. What moves you within that range: system size, duct accessibility (attic vs. crawl space vs. finished basement), whether we need to clean before sealing, and whether your home has rigid metal, flex-duct, or asbestos-wrapped lines.
We don’t quote per-vent. We quote per system, in writing, before work starts. One flat price. No add-ons at the door. The estimate is free. Call (361) 326-5060.
Homes facing the Cleveland National Forest foothills may need resealing more frequently due to Santa Ana wind loading. We don’t sell you a maintenance contract. We tell you what we found, what we did, and when to check again based on your specific neighborhood and exposure.
We Also Serve Cities Near Tustin
Our crews work Tustin plus Santa Ana, Orange, Irvine, and Villa Park from the Los Angeles office. Same written prices, same 365-Day Done Right Promise, same background-checked technicians in every city.
Serving Tustin, CA - Our Local Coverage Area
We’re based in the Tustin 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 Tustin
Every 3 – 5 years for foothill-facing homes, versus 5 – 8 years for sheltered inland Tustin neighborhoods. The orange-brown mineral dust that loads into return plenums after Santa Ana events accelerates seal degradation by cycling through joints and abrading tape edges. Call (361) 326-5060 for an inspection if you smell grit when the heat kicks on.
Yes, with modified methods. Original gravity-furnace ducts in Old Town Tustin are typically metal, undersized, and often asbestos-wrapped. We use mastic with mechanical fasteners instead of tape, and we work within California asbestos protocols when wrapping is disturbed. The 365-Day Done Right Promise covers these repairs too.
Only if it’s done without measuring static pressure. Tustin Ranch and Tustin Legacy homes were HERS-rated for specific airflow. We test before and after sealing to ensure we haven’t over-restricted the system. Done right, sealing improves efficiency. Done blind, it can strain your blower motor.
It’s windblown mineral dust from Santa Ana events, distinctive to Tustin homes facing the Cleveland National Forest foothills. The color comes from iron-rich soils in the Santa Ana Mountains. If it’s coating your plenum, it’s also passing through your filter and into your living space, and it’s likely degrading any existing duct seals from the inside. We clean it out before we seal anything.
Yes. Properties on the Tustin periphery with unpaved access or outbuilding HVAC systems need the same sealed-delivery standard as in-town homes, often with longer service drives factored into scheduling. We seal shop ducts, guest-house mini-split connections, and main-residence systems alike. Written price before work starts, same 365-Day Done Right Promise. Call (361) 326-5060 to schedule.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Tustin since 2004.