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 Loma Linda
We run our Duct Sealing crews from our Inland Empire office, dispatching to Loma Linda homes with the tools and mastic loaded for the specific dust conditions this area throws at ductwork. Most Loma Linda appointments book within a few days, and our technicians know the difference between a 1960s ranch off Anderson Street and a newer build near Loma Linda University Health before they step out of the van. If your registers blow dust after every Santa Ana wind event, or your utility bills keep climbing while rooms stay uneven, call us at (361) 326-5060. We’ll give you a written price before any work starts, and every seal is covered by our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Loma Linda’s Preferred Duct Sealing Company
Hollis has been part of the Garrison Partners family since 2004, and our Inland Empire crews have sealed ducts in enough Loma Linda homes to know what the clay-silt dust from the Santa Ana River wash does to mastic seams over time. Homeowners here aren’t looking for the cheapest coupon; they’re looking for a crew that shows up uniformed, explains the static pressure readings, and leaves documentation they can show their allergist or their home insurer.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No waiting until Monday to schedule.
Every technician is background-checked and arrives in a Hollis uniform, carrying professional-grade equipment from Rotobrush and Abatement Technologies. The price is written down before we touch your ducts, and it does not move at the door. If a seal fails within a year, we come back and make it right at no charge, including a free second visit. That’s The Garrison Standard, and it’s how we operate in every Loma Linda home we enter.
HVAC Duct Sealing in Loma Linda
HVAC Duct Sealing in Loma Linda means closing the gaps, separations, and deteriorated seams in your forced-air system so conditioned air reaches the rooms it’s supposed to reach instead of leaking into your attic, crawlspace, or walls. In this market, we see two distinct housing stocks: mid-century ranch homes with original galvanized steel trunk lines, and newer construction near the university with flexible ducting. Both leak, but they leak differently, and the sealing approach changes accordingly.
A typical whole-system duct sealing job in Loma Linda runs $850 – $1,800 depending on accessibility, duct material, and how many branch takeoffs need reworking. Homes with crawlspace runs or detached garage ties tend toward the higher end. We always inspect with a camera first, price in writing, then seal.
Sealing Galvanized Steel Trunk Lines
Original steel ducts from the 1950s – 70s develop gaps at the longitudinal seams and collar connections. We brush on fiber-reinforced mastic, which flexes with thermal expansion better than foil tape alone, then verify the repair with a static pressure test at the air handler.
Flex Duct and Branch Takeoff Work
Newer flex additions often separate at the metal collar where they join rigid trunk lines. We secure with proper straps, seal with mastic, and check that the inner liner hasn’t collapsed, a common issue in Loma Linda’s hot attic spaces where cheap original tape has cooked off.
Duct Repair in Loma Linda
Duct Repair in Loma Linda addresses the physical damage that sealing alone won’t fix: crushed flex runs, rusted-out galvanized sections, disconnected collars pulling unfiltered air from the crawlspace, and sagging lines that have separated from their supports. The clay-silt dust from nearby citrus groves and the Santa Ana River wash accelerates wear at these failure points, especially where original steel meets aftermarket flex in older ranches.
Repair costs in Loma Linda typically fall between $400 – $1,200 for localized fixes, and $1,500 – $3,000 if we’re replacing significant trunk-line sections or rebuilding a plenum. Every repair includes written pricing upfront and the same 365-Day Done Right Promise that covers our sealing work.
Crawlspace Separation and Ground-Level Intake
Mid-century ranch crawlspace runs often sag until the collar gaps open, pulling dust straight from bare earth into your supply air. We re-support the line, replace damaged sections, and seal the connection so your filter actually filters what enters your home.
Outbuilding and Detached Garage Ties
Systems extended to garages or guest houses leak at every unsealed joint, drawing wood-heat ash and unpaved-drive dust into the whole-house loop. We isolate, seal, or recommend independent systems based on what the camera inspection shows.
Trusted Brands We Service in Loma Linda
We carry sealing and filtration products from Aprilaire, Abatement Technologies, and Guardsman, stocked at our Inland Empire warehouse for fast turnaround on Loma Linda jobs. Our Rotobrush camera systems let us show you the inside of your ducts before we quote, and our Nikro negative-air machines keep debris contained during repair work. When we specify a material for your home, we tell you the brand, why we chose it, and what the manufacturer’s warranty covers. No generic “commercial-grade” claims. Just the right product for the dust profile your ducts are actually seeing.
Common Duct Sealing Problems We See in Loma Linda Homes
- Foil tape failure after single season cycles. Loma Linda’s inland temperature swings, 100°F summer days to 40°F winter nights, plus abrasive clay-silt dust, strip the adhesive bond on standard foil tape within one year. We see this constantly in homes south of the 10 freeway near the river wash.
- Mastic erosion at air handler plenums. The fine mineral dust from citrus-grove soil and unpaved rural drives circulates at high velocity through the return side, gradually wearing away brushed-on mastic at the plenum seam. Our field vignette: a 1962 ranch off Anderson Street near the VA hospital had three generations of foil tape over a failing mastic seam; after Rotobrush camera inspection and negative pressure source removal, we sealed the trunk lines with fiber-reinforced mastic, re-taped branch takeoffs, verified static pressure drop at the blower motor fell into manufacturer’s range, and the homeowner’s dust-on-registers complaints after Santa Ana events stopped.
- Crawlspace sag and collar separation. Original galvanized sections meeting aftermarket flex additions pull apart at the collar, creating an open intake for unfiltered ground dust. This is especially common in the 1950s – 60s ranch core of Loma Linda.
- Outbuilding leaks drawing contaminants into main loop. Detached garage or guest house ducts tied into the central system leak at every joint, so wood-heat ash and drive dust that should stay outside gets distributed to every room.
Pricing for Duct Sealing in Loma Linda, CA
Whole-system duct sealing in Loma Linda typically runs $850 – $1,800. Localized sealing of specific problem areas starts around $400. Duct repair, when sections need replacement or rebuilding, ranges $400 – $3,000 depending on scope. What moves you within these ranges: crawlspace accessibility, whether we’re working with rigid steel or flex duct, how many branch takeoffs need attention, and whether the plenum itself needs rebuild work.
We do not quote per-vent teaser prices that balloon once the technician is inside. We inspect with a camera, show you what we found, write the full price down, and only then begin work. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Loma Linda
Our Inland Empire crews also handle Duct Sealing in Loma Linda and surrounding communities including Colton, Grand Terrace, San Bernardino, and Redlands. Each job follows The Garrison Standard: arrive inside the window, price in writing, complete by the book, leave the site clean.
Serving Loma Linda, CA - Our Local Coverage Area
We’re based in the Loma 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 Loma Linda
Every 5 – 7 years for homes with significant dust loading from unpaved drives, open land, or wood heat; every 7 – 10 years for homes on paved streets with standard HVAC use. The clay-silt dust from the Santa Ana River wash and citrus-grove soil is more abrasive than coastal dust, so seals wear faster here. Call (361) 326-5060 and we’ll camera-inspect to tell you where your specific system stands.
Yes, but only if your ducts are leaking on the return side or pulling from unsealed crawlspaces or attics. Sealing closes those intake paths so your filter handles what enters, rather than bypassing filtration through gaps. After major Santa Ana events, we often find fine ash coating return ducts in homes near the 10 freeway corridor; sealing plus proper filtration with Guardsman or Honeywell media is the combination that stops the re-circulation. Call (361) 326-5060 for an inspection.
Yes, with the right technique. We use fiber-reinforced mastic brushed onto clean surfaces, not aggressive tapes that pull metal when removed. Camera inspection first tells us if the steel is intact enough to seal or if a section needs replacement. Many Anderson Street-area ranches we’ve worked on seal successfully and see immediate static pressure improvement. Call (361) 326-5060 to schedule a camera look.
Cleaning removes built-up debris; sealing closes the gaps that let new debris in and conditioned air out. For dusty Loma Linda homes, we typically clean first to remove the clay-silt loading, then seal to prevent re-contamination. Doing sealing alone traps existing debris; doing cleaning alone leaves the intake paths open. We inspect and recommend the right sequence for your system. Call (361) 326-5060 for a free evaluation.
We measure static pressure at the blower motor before and after, comparing to the manufacturer’s specified range. We also run a smoke pencil or theatrical fog test at accessible seams to verify no visible leakage, and we provide before/after photos from the camera inspection. For Loma Linda’s older systems, we pay special attention that the blower motor isn’t overworking against restricted airflow after sealing; if static pressure rises too high, we identify and address the restriction. Call (361) 326-5060 and we’ll show you exactly what changed.
Ready to stop losing conditioned air to your attic and crawlspace? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free duct sealing estimate in Loma Linda. We’ll inspect with a camera, write the price down before any work starts, and back every seal with our 365-Day Done Right Promise. If it’s not done right, we make it right. That’s The Garrison Standard.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Loma Linda and the Inland Empire.