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
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Before
AfterFast, Reliable Duct Sealing Across Loomis
Last October, a homeowner on Taylor Road called us after her PG&E bill jumped forty percent in one month. Her 1980s ranch had flex duct running through a hot crawl space, and the seams had opened wide enough to blow cooled air into the dirt below her floorboards. That’s the kind of waste we see constantly in Loomis. Duct sealing in Loomis typically runs $450 – $1,200 for a whole-home seal, and most jobs finish in a single visit. Call (361) 326-5060 for a free written estimate.
We’re not strangers here. Our crews drive out from the Sacramento office daily to work in Loomis neighborhoods like Horseshoe Bar, Doty Corner, and the acreage properties along King Road. We know the difference between a 1975 ranch with original galvanized duct and a 2015 custom build with insulated flex runs in a conditioned attic. That local familiarity means we spot problems faster and quote them accurately the first time.
Why Hollis Air Duct Cleaning Is Loomis’s Preferred Duct Sealing Company
Our Duct Sealing team has built a reputation in Loomis by showing up inside the quoted window and leaving with the job done by the book. We don’t send subcontractors or day laborers. Every technician is background-checked, uniformed, and trained to The Garrison Code, which means written prices before any work starts and a site left clean.
Customers in Loomis mention the same things in their feedback: the technician arrived when promised, explained what he found in plain terms, and the final invoice matched the written quote exactly. No surprise charges, no upsell pressure.
Because we dispatch from Sacramento, our response time to Loomis is typically same-week scheduling, often within two to three business days. For urgent situations, like a disconnected main trunk line dumping conditioned air into an attic, we prioritize the call.
We also understand the local housing stock. Older homes near downtown Loomis often have metal duct with failing tape seals, while newer construction off Sierra College Boulevard frequently has flex duct that pulls loose at the collar connections. That knowledge lets us bring the right materials and equipment on the first trip.
Air Duct Sealing in Loomis
Air Duct Sealing in Loomis means closing every gap, seam, and connection point in your forced-air system so the air you paid to heat or cool actually reaches your rooms. In a town where summer temperatures regularly hit ninety-five degrees and wildfire smoke from the American River canyon forces weeks of closed-window HVAC dependence, leaky ductwork can waste twenty to thirty percent of your energy dollars and pull contaminated air from attics, crawl spaces, and wall cavities.
A typical whole-home seal in Loomis runs $450 – $1,200 depending on system size, duct accessibility, and the condition of existing materials. Small partial seals or single-run repairs may fall below that range; complex systems with multiple zones or hard-to-reach ductwork can run higher.
How We Seal Metal and Flex Duct
Metal duct gets sealed with mastic, a thick paste that brushes onto seams and hardens into a permanent, flexible seal. Unlike foil tape, which dries and fails within a few years in Loomis’s hot attic conditions, mastic lasts the life of the system. Flex duct connections get reinforced with proper collars and straps, not the zip-tie shortcuts that pull loose when the blower cycles on and off.
Testing Before and After
We pressure-test your duct system before any sealing begins to measure total leakage in CFM25, cubic feet per minute at twenty-five pascals of pressure. After sealing, we test again. You’ll see the numbers in writing. That’s how we verify the work under our 365-Day Done Right Promise.
Duct Sealing Services in Loomis
Duct Sealing Services in Loomis cover everything from spot repairs on a single disconnected run to comprehensive whole-system sealing for homes with decades of cumulative leakage. We also handle Air Duct Cleaning in Loomis and Dryer Vent Cleaning in Loomis, and many homeowners bundle these services since dirty ducts and leaky ducts often occur together.
The cost structure stays consistent with our standard: one flat price per system agreed before work starts. For duct sealing, that means $450 – $1,200 for most Loomis homes, with no per-vent add-ons or surprise charges once we’re on site.
Attic and Crawl Space Access
Many Loomis homes have ductwork in unconditioned spaces, either hot attics under tile roofs or damp crawl spaces on hillside lots. Our crews bring proper protective gear, lighting, and ventilation to work safely in these conditions. We don’t ask you to clear insulation or move stored items; that’s part of the job.
Smoke and Pollen Barrier Integrity
After the 2021 and 2024 wildfire seasons, Loomis homeowners became rightly concerned about duct systems pulling smoke particles from attic spaces into living areas. Sealing the return side of your system is critical. We pay special attention to the air handler cabinet, filter rack, and return plenum, where smoke-laden attic air most commonly infiltrates.
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 Loomis
We seal and repair duct systems connected to equipment from every major manufacturer, and we stock sealing materials and filtration products from Honeywell, Aprilaire, and Abatement Technologies for fast turnaround on Loomis jobs. Our Nikro negative-air machines and Rotobrush rotary systems see daily use when sealing work reveals duct interiors that need cleaning before mastic can adhere properly. If your system uses specialized filtration or zoning controls, we’ll identify the components and ensure our sealing work doesn’t compromise their function. Parts and materials are ordered through our Sacramento supply chain, so most Loomis customers don’t wait for special orders.
Common Duct Sealing Problems We See in Loomis Homes
- Original flex duct sagging in crawl spaces. The 1970s and 1980s ranch homes on Loomis’s larger lots often have flex duct that has compressed, kinked, or pulled loose at the boots. Sagging creates turbulence that blows seams open and collects debris where the duct touches soil.
- Undersized returns in newer construction. Custom and tract homes built from 2000 to 2020 sometimes have return air pathways too narrow for the blower capacity. The resulting negative pressure pulls attic air through every available gap, making sealing the returns as important as sealing the supply lines.
- Tape failure after hot summers. Standard foil tape degrades rapidly in Loomis attics that exceed one hundred twenty degrees in July and August. We remove failed tape entirely and replace it with mastic, which tolerates thermal cycling without cracking.
- Musty odors after first fall rain. Homes on well and septic in the Horseshoe Bar and Doty Corner areas often develop earthy smells when the heating season starts. The culprit is usually a summer’s worth of dust and pollen pulled from surrounding pastures, now damp from humidity, sitting in leaky return ductwork. Sealing the returns and sanitizing the system eliminates the source.
Pricing for Duct Sealing in Loomis, CA
Whole-home duct sealing in Loomis typically costs $450 – $1,200. Here’s how that breaks down:
- Small system, partial seal, accessible attic: $450 – $650
- Mid-size home, full seal with mastic, standard access: $650 – $950
- Large home, multiple zones, crawl space work, or extensive flex replacement: $950 – $1,200
What moves the price: system size measured by tonnage and vent count, whether ductwork runs through attic or crawl space, the condition of existing materials (tape removal adds labor), and whether we discover disconnected runs or damaged flex that needs replacement rather than sealing. We inspect first, write the price down, and get your approval before touching tools. No per-vent pricing, no teaser coupons, no invoice that doubles at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Loomis
Our crews work throughout the Sierra foothill corridor. If you’re in Loomis or nearby Rocklin, Granite Bay, Newcastle, or Roseville, the same scheduling, pricing, and guarantee standards apply. Dispatch is coordinated from our Sacramento office, and we route crews daily to minimize drive time and keep appointments on schedule.
Serving Loomis, CA - Our Local Coverage Area
We’re based in the Loomis 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 Loomis
We typically schedule duct sealing in Loomis within two to three business days, and urgent cases like disconnected main trunk lines get priority. Call (361) 326-5060 to check current availability.
Yes, we work throughout Loomis including Horseshoe Bar, Doty Corner, Taylor Road acreage, and the hillside properties off King Road. Our trucks carry enough materials for both standard suburban homes and larger systems on multi-acre lots.
We prioritize urgent calls where a major leak is making the home unlivable or causing extreme energy waste, though duct sealing is generally a scheduled service rather than an emergency dispatch. Our phones are answered by a live person 24/7 to assess your situation and schedule accordingly.
No, our pricing is consistent across the Loomis, Rocklin, and Roseville markets. A whole-home seal runs $450 – $1,200 regardless of which side of the city line you’re on. The variables that affect price are system size and accessibility, not geography.
Every duct sealing job is covered by our 365-Day Done Right Promise in writing. If any sealed joint fails, any mastic cracks, or any connection pulls loose within one year, we return and make it right at no charge, including a free second visit. That’s a full year of coverage, not thirty or ninety days.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Loomis and the surrounding foothill communities.