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.
Fast, Reliable Duct Sealing Across Rancho Cordova
Duct sealing in Rancho Cordova typically runs $800 – $2,400 for a whole-home job, depending on whether we’re working with original 1960s sheet metal or modern flex duct. We’re the local crew that handles both in the same zip code. Our Duct Sealing in Rancho Cordova team dispatches from our Sacramento office, and we know the difference between a ranch south of Highway 50 and a new build in Easton before we even pull into the driveway. Call (361) 326-5060 for a free written estimate.
Why Hollis Air Duct Cleaning Is Rancho Cordova’s Preferred Duct Sealing Company
We’ve been doing this since 2004 as part of the Garrison Partners family, and Rancho Cordova is one of our most frequent stops for Rancho Cordova Dryer Vent Cleaning and duct work. Homeowners here don’t need a lecture on air quality. They need a crew that shows up in the window, writes the price down before touching anything, and doesn’t treat a 1965 ranch the same as a 2022 two-story.
Our technicians are background-checked and uniformed, and they follow The Garrison Code on every Rancho Cordova job: arrive inside the quoted window, price in writing, complete the work by the book, leave the site clean. No exceptions.
The 365-Day Done Right Promise covers every duct sealing job we do in Rancho Cordova. If the work fails within a year, we come back and make it right at no charge, including a free second visit. That’s written on every invoice, not implied.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule.
HVAC Duct Sealing in Rancho Cordova
HVAC Duct Sealing in Rancho Cordova means closing the gaps, cracks, and failed joints that let conditioned air escape before it ever reaches your rooms. We use duct sealing mastic, a thick, fiber-reinforced compound that fills seams and stays flexible as metal expands and contracts through our 100°F summers and 40°F winter nights. For flex duct, we add mesh reinforcement to prevent future separation at the collars. A typical whole-home sealing job in Rancho Cordova runs $800 – $1,800 for original ranch homes with accessible attic ductwork, and $1,200 – $2,400 for newer two-story homes with longer, more complex runs.
When Sealing Becomes Necessary
Most Rancho Cordova homeowners call us after noticing hot spots in summer, cold rooms in winter, or utility bills that climbed without explanation. In the original ranch neighborhoods, 60-year-old galvanized joints have simply worked themselves loose. In Easton and other new construction, builder-grade flex duct was often crushed during framing or never fully seated at the boots.
What the Process Looks Like
We pressurize the system and use smoke pencils or digital manometers to locate every leak. Then we seal supply and return joints with mastic, replace damaged flex runs, and re-support any crushed sections. The work takes four to eight hours for most Rancho Cordova homes, and we photograph before and after conditions at every accessible joint.
Duct Repair in Rancho Cordova
Duct Repair in Rancho Cordova addresses damage that sealing alone won’t fix: disconnected runs, collapsed flex, corroded sheet metal, or deteriorating interior insulation that sheds fibers into the airstream. Repair costs in Rancho Cordova typically range from $400 for a single disconnected run to $1,500 – $3,000 for extensive corrosion or multiple failed sections in older homes. We always inspect with a camera first, so you’re not paying for sealing when what you actually need is replacement.
Repair vs. Sealing: The Decision
Original ranch homes south of Highway 50 often have galvanized ducts with interior insulation that crumbles when disturbed. If our camera shows active fiber shedding, we recommend repair or replacement before any sealing work. Sealing over deteriorating material traps the problem and makes it worse.
New Construction Failures
Easton homes and similar new builds frequently arrive with flex duct kinked in tight chases or torn at the collar. Sealing a kinked run is pointless. We relieve and re-support the duct first, then seal the joints. Otherwise you’re paying to make a bad install slightly less bad.
Trusted Brands We Service in Rancho Cordova
We carry filtration and sealing products from Honeywell, Aprilaire, and Abatement Technologies on every Rancho Cordova truck, and we stock flex duct, collars, and mastic compounds sized for both the 6-inch rigid pipe common in 1960s ranches and the 8-inch flex standard in newer construction. That local inventory means we don’t leave your job to chase parts across Sacramento County. Our rotary brush systems from Rotobrush and negative-air machines from Nikro handle the full range of Rancho Cordova housing stock, from original sheet metal to modern flexible runs.
Common Duct Sealing Problems We See in Rancho Cordova Homes
- Crushed flex in Easton chases. Builder-grade flex duct gets compressed between framing members during construction. Homeowners feel weak airflow upstairs and assume the unit is undersized. Usually it’s a 12-foot section of duct flattened to half its diameter.
- Galvanized seam failure in original ranches. Sixty years of thermal cycling opens pinholes and gaps at every joint in the attic. The system loses 20 – 30% of conditioned air before it hits the register, and the attic gets unintentionally climate-controlled.
- Construction debris in new supply ducts. Drywall dust, wood chips, and insulation scraps left at handover get sealed into the system if a homeowner calls a cut-rate outfit that skips cleaning before sealing. The grit circulates indefinitely.
- Return-side leaks pulling attic air. In Rancho Cordova’s windy, dusty conditions, a leaky return near the air handler sucks in Central Valley dust, pollen, and whatever blew off the nearest construction site. Register-level sealing can’t fix this.
Pricing for Duct Sealing in Rancho Cordova, CA
A typical whole-home duct sealing in Rancho Cordova runs $800 – $2,400. Original single-story ranches with accessible attic ductwork and straightforward galvanized joints fall at the lower end. Two-story homes in Easton or similar new construction, with longer flex runs and more complex chase routing, run higher. Repair work, when needed, adds $400 – $1,500 depending on material replacement.
What moves the price: accessibility (crawl space vs. walkable attic), extent of damage, whether cleaning is needed first, and whether we’re working with rigid metal or flex duct. We do not quote per-vent pricing. We quote one flat price per system, agreed in writing before any work starts. Every estimate is free, and we photograph the conditions we find so you see what we see. Call (361) 326-5060 for an exact quote.
We Also Serve Cities Near Rancho Cordova
Our crews work throughout the Sacramento metro, including Rancho Cordova neighbors in Carmichael, Fair Oaks, Mather, and Orangevale. Same standards, same written pricing, same 365-Day Done Right Promise.
Serving Rancho Cordova, CA - Our Local Coverage Area
We’re based in the Rancho Cordova 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 Rancho Cordova
Builder-grade flex duct in Easton homes is often crushed or kinked during framing, and boot joints are sometimes left unsealed or sealed with tape that fails within months. We sealed a 2021 two-story in Easton where the homeowner kept finding drywall dust on the supply registers in week two; our camera inspection showed crushed flex runs in the chase and open boot joints still shedding construction debris. Pulling the return, we ran agitation tools under negative pressure with HEPA filtration, then sealed every joint in the supply and return ducts with mastic and mesh. The blower motor stopped short-cycling on the 108°F afternoons, and the family finally stopped sweeping dust off the vents. Call (361) 326-5060 for a free inspection.
Yes, entirely different. The 1960s ranch needs mastic sealing at galvanized joints and careful handling of potentially deteriorating interior insulation. The Easton build needs relief and re-support of crushed flex runs before any sealing work makes sense. Our Duct Sealing team assesses which category your Rancho Cordova home falls into before quoting. Call (361) 326-5060 to schedule.
No, and any outfit that says otherwise is cutting corners. Sealing over drywall dust, wood chips, or insulation debris traps that material in the system. It will circulate every time the blower runs. We clean first with rotary brush agitation under negative pressure, then seal. The order matters. Call (361) 326-5060 for an estimate.
Yes, if leaks are the problem. A system losing 25% of its conditioned air to the attic works harder and longer to maintain temperature. Sealing those leaks restores delivered capacity without upsizing equipment. In Rancho Cordova’s intense summer heat, that difference shows up in comfort within a day and in utility bills within a month. Call (361) 326-5060 for a pressure test.
Camera inspection tells the story. Corroded sheet metal, collapsed flex, or active fiber shedding from deteriorating insulation means repair or replacement first. Sealing damaged material wastes money and can make air quality worse. We show you the camera footage and explain exactly what we’re seeing before you decide. Call (361) 326-5060 for a free inspection and written options.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Rancho Cordova since 2004.




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