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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Before
AfterFast, Reliable Duct Sealing Across Yorba Linda
We seal ducts in Yorba Linda homes where the Santa Ana winds have been pushing fine dust through gaps for decades. If your utility bills keep climbing, rooms stay hot while others stay cold, or you notice grit collecting around registers, your ductwork is likely leaking conditioned air into the attic or crawl space. Call (361) 326-5060 for a free estimate. Our crews are scheduled through our Los Angeles office and serve Yorba Linda directly – no out-of-town dispatch delays.
We’ve worked the custom ranches near Yorba Linda Boulevard and Imperial Highway, the hillside homes above Bastanchury Road, and the older neighborhoods around Lakeview Avenue. Yorba Linda’s larger lots mean longer duct runs, and many homes run two or three separate HVAC systems. That changes how sealing gets scoped, priced, and documented. Our Duct Sealing team prices per system, not per house, because each system’s leaks and pressure readings are different.
Why Hollis Air Duct Cleaning Is Yorba Linda’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. In Yorba Linda, we’ve built our reputation on showing up inside the quoted window, writing the price before touching anything, and leaving the site clean. That’s The Garrison Standard, and it applies to every job we run in Orange County.
Our technicians are background-checked, uniformed, and trained on the same Rotobrush and Nikro equipment commercial crews use. Before any work starts, you get a written price. After the work, you get the 365-Day Done Right Promise in writing – if a sealed joint fails or a repair doesn’t hold, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
HVAC Duct Sealing in Yorba Linda
HVAC Duct Sealing in Yorba Linda means closing the gaps, disconnected joints, and deteriorated mastic in your forced-air system so the air you paid to cool or heat actually reaches the rooms. We use professional-grade sealants and pressure-testing equipment to find leaks you cannot see, then document the before-and-after with camera inspection stills. In Yorba Linda’s climate – hot, dry summers with heavy Santa Ana wind events – sealed ducts also reduce how much outdoor grit and ash gets pulled into the system through negative pressure.
Because many Yorba Linda homes, especially the 1960s-70s custom ranches, have two or three separate air handlers serving different wings, we scope and price per system. A main house system, a guest wing system, and a converted bonus room system each have their own supply and return runs, their own plenum connections, and their own leak patterns. Pricing per system means you’re not overpaying for a blanket quote, and you’re not getting a cheap job that skips the secondary systems.
A typical HVAC duct sealing job for one system in Yorba Linda runs $400 – $850. Multi-system homes usually see $900 – $2,200 for complete sealing across all units, depending on access and the condition of existing ductwork.
Pressure Testing Before Sealing
We pressurize the duct system and measure leakage in CFM at 25 Pascals. This tells us exactly how much air you’re losing before we start, and it gives us a target to hit after sealing. You see the number. We write it down.
Mastic and Mechanical Sealing
We seal with UL-181 rated mastic on joints and plenum connections, plus mechanical fasteners where the duct has pulled away from the boot or register. Tape alone fails in Yorba Linda’s attic heat. We don’t use it as a primary seal.
Duct Repair in Yorba Linda
Duct Repair in Yorba Linda addresses the physical damage that sealing alone won’t fix: crushed flex duct in tight attic spaces, rusted-out rigid metal where condensation pooled for years, and disconnected panned-joist returns that were never properly sealed when the house was built. We replace damaged sections, rebuild plenum connections, and install access panels where the original 1970s installation left none.
The 1970s-era homes near Yorba Linda Boulevard and Imperial Highway often need custom access cut into hall ceilings because the original rigid metal ducts have no cleanouts. Our techs carry the tools to do this cleanly, patch the drywall, and leave the site ready for paint. We don’t leave holes. We don’t leave dust.
Duct repair in Yorba Linda typically runs $300 – $700 for section replacement or plenum rebuild on a single system. More extensive work – multiple access cuts, full return rebuilds, or rusted metal replacement – can reach $800 – $1,500. We write the price before we cut anything.
Rusted Metal and Condensation Damage
Older rigid metal ducts in Yorba Linda attics develop rust where insulation has slipped and condensation forms. We cut out the damaged section, install new galvanized metal, seal with mastic, and reinsulate. The repair is photographed and included in your documentation.
Disconnected Panned-Joist Returns
Many 1960s-70s homes used the space between floor joists as return air pathways. These leak by design. We line or rebuild them with proper duct board or metal so air pulls from the rooms, not from the wall cavity.
Trusted Brands We Service in Yorba Linda
We stock parts and filtration products from Honeywell, Aprilaire, and Guardsman for Yorba Linda customers, which means faster turnaround when a repair needs a specific component. Our sealing equipment includes Rotobrush rotary systems for agitation and Nikro negative-air machines for controlled dust containment during access cuts. We don’t run to the supply house mid-job. We arrive with what the house needs.
Common Duct Sealing Problems We See in Yorba Linda Homes
- Original 1960s – 70s rigid metal ducts with no cleanouts. The custom ranches on larger lots were built with supply and return runs that have no access panels. Sealing at the registers only misses the hidden leaks in attic trunks and panned-joist returns. We cut proper access, seal what we can reach, and document every joint.
- Multi-system homes where only the main air handler gets attention. A house with three systems – main, guest wing, bonus room – often sees the secondary units skipped because they’re harder to reach. We test and seal each system separately, with separate pressure readings and separate documentation.
- Santa Ana grit mistaken for sealing failure. Fine dust and wildfire ash settle in long duct runs after wind events. Homeowners think the ducts are leaking again, but the real problem is a blocked return pulling air through gaps that were never sealed in the first place. We diagnose before we seal.
- Failed original mastic in attic heat. Yorba Linda attics reach 140°F in summer. The mastic applied in 1972 has turned to powder. We remove the old material and apply fresh, high-temp rated sealant that holds under current conditions.
Pricing for Duct Sealing in Yorba Linda, CA
Duct sealing in Yorba Linda is priced per system, not per house, because each air handler has its own duct runs, its own leak rate, and its own access challenges. A single-system home typically runs $400 – $850. Homes with two systems usually fall in the $700 – $1,400 range. Three-system properties, common in the larger custom ranches near Bastanchury Road and the hills above Yorba Linda Boulevard, typically run $900 – $2,200 for complete sealing.
What moves the price: how many access panels need to be cut, whether rusted sections require replacement, and the condition of original mastic. We do not quote per-vent pricing. We do not bait with a low coupon and add charges at the door. The price is written before work starts. It does not move.
Call (361) 326-5060 for a free estimate. We’ll pressure-test your system, show you the leak rate, and give you a written price with no obligation.
We Also Serve Cities Near Yorba Linda
Our crews work Duct Sealing in Yorba Linda and the surrounding communities: Placentia to the west, Fullerton to the southwest, Brea to the north, and Villa Park to the southeast. Scheduling is coordinated from our Los Angeles office, with local crews dispatched directly to your area.
Serving Yorba Linda, CA - Our Local Coverage Area
We’re based in the Yorba Linda 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 Yorba Linda
Because Yorba Linda’s larger-lot custom ranches often run two or three separate HVAC systems, and each system’s long return runs behave differently after a Santa Ana wind event. Per-system pricing means you pay for the work each unit actually needs, not an average that overcharges small systems or underfunds large ones. Call (361) 326-5060 for an exact quote – estimates are free.
Yes. We cut access panels into hall ceilings or attic trunks where needed, seal the joints and plenum connections, then patch and finish the openings. We document the work with camera inspection stills so you can see what was sealed behind the drywall. The price includes access cuts and patching.
You get pressure-test readings before and after, camera inspection stills of sealed joints, and before/after photos of any access cuts or repairs. On a custom ranch off Yorba Linda Blvd near Imperial Hwy, our tech sealed three systems and handed over documentation for each – the homeowner could see every sealed joint they’d otherwise never lay eyes on. We don’t expect you to trust work you can’t verify.
It depends on what the pressure test shows. Fine grit and ash in ducts after a wind event often means your returns are pulling unfiltered air through gaps – that’s a sealing problem. If the ducts are intact but dirty, cleaning may be enough. We test first, then recommend. Call (361) 326-5060 to schedule.
It usually reduces dust significantly, especially if your returns are leaking and pulling attic air through unsealed gaps. Sealing won’t stop all dust – filters still matter – but it stops the system from actively sucking in dirty air from outside the conditioned space. Many Yorba Linda customers notice less grit on registers within a few weeks.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Yorba Linda and surrounding communities.