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
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Before
AfterFast, Reliable Duct Sealing Across Cherry Valley
Duct sealing in Cherry Valley typically costs $450 – $1,200 for a whole-home system, with most ranch-style and manufactured homes falling in the $550 – $850 range. We seal supply and return plenums, register boots, and longitudinal seams using duct sealing mastic and mechanical fasteners that hold up to the wind-driven dust and temperature swings this pass gets. Our Duct Sealing crews dispatch from our Inland Empire office and carry the full Rotobrush and Nikro inventory needed for Cherry Valley’s mix of 1970s ranch homes and newer tract builds. Call (361) 326-5060 for a written estimate before any work starts.
Cherry Valley sits at the mouth of the San Gorgonio Pass, so air ducts here pull in the same fine desert dust that scours the wind farm corridor, plus wildfire ash from the surrounding San Bernardino National Forest. That particulate loading is different from what neighbors in Beaumont or Yucaipa see. When your ducts leak, that dust doesn’t just stay in the attic or crawl space. It gets drawn into the pressure imbalance and distributed through every room. We’ve sealed systems along Beaumont Avenue and up toward the foothill ranches where homeowners noticed the difference within a week: less dust on furniture, more even temperatures from room to room, and furnaces that didn’t smell like a campfire the first cold night.
Our technicians know the local housing stock. Many Cherry Valley homes were built from the 1970s onward with single-wall duct runs that have separated at the seams, or manufactured homes on permanent foundations with shorter, more accessible duct systems that previous owners ignored. We don’t treat a 1978 ranch on acreage the same as a 2019 infill near the highway. The Garrison Standard means we arrive inside the quoted window, price the job in writing before touching anything, and leave the site clean. That’s how we’ve worked since 2004.
Why Hollis Air Duct Cleaning Is Cherry Valley’s Preferred Duct Sealing Company
We’ve built our reputation in Cherry Valley by showing up when we said we would and charging what we quoted. No homeowner along Cherry Valley Road or out toward the San Gorgonio Wilderness should have to negotiate with a technician who pulls a higher number out of a folder after the work is half done. Our written price, agreed before any sealing begins, is the price on the invoice.
Our response time to Cherry Valley is same-week for standard scheduling, and our 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 when your heater smells like ash on a Saturday night.
We know the local conditions. After a Santa Ana wind event or a forest fire in the San Gorgonio Wilderness, the first cold snap sends homeowners calling because the heater smells like a campfire. That’s the ash and fine grit that settled in leaky ducts over summer getting baked when the furnace kicks on. Sealing those leaks before heating season isn’t preventive maintenance. It’s how you keep from filtering last August’s wildfire smoke through your bedroom vents in January.
Our technicians are background-checked and uniformed. You know who is walking into your home before they arrive. Every repair is covered by our 365-Day Done Right Promise: if the work fails within a year, Hollis comes back and makes it right at no charge, including a free second visit. That’s written on every job, not implied.
Duct Insulation in Cherry Valley
Duct Insulation in Cherry Valley addresses a problem most homeowners don’t notice until their summer electric bill arrives or their bedroom stays cold in January. The hot, dry summers and near-freezing winter nights here mean ducts running through unconditioned attics or crawl spaces lose conditioned air fast. We wrap supply plenums and long trunk lines with formaldehyde-free fiberglass insulation, sealed at seams with foil tape and mastic, to keep the air you paid to heat or cool actually reaching your rooms.
Most Cherry Valley jobs run $600 – $1,400 depending on accessible linear footage and whether we’re insulating existing sealed ducts or sealing and insulating together. Manufactured homes on permanent foundations often need less material but more precise fitting around compact chase spaces. Ranch homes on acreage may have 40-plus feet of exposed trunk line in a hot attic.
Attic and Crawl Space Runs
Attic temperatures in Cherry Valley can exceed 140°F in July. Uninsulated ducts up there are trying to push 55°F air through a pizza oven. We use R-6 or R-8 insulation with a reinforced vapor barrier, because even in this dry climate, the temperature differential can create enough condensation at the register to stain drywall.
Combining with Air Sealing
Duct insulation without sealing first is wrapping a leaky hose. We always pressure-test after sealing to confirm leakage is below industry standard, then insulate. For Cherry Valley homeowners, this sequence typically drops summer cooling costs 15 – 25% and eliminates the cold-bedroom complaint we hear every December.
HVAC Duct Sealing in Cherry Valley
HVAC Duct Sealing in Cherry Valley stops the conditioned air you’re paying for from escaping into your attic, crawl space, or wall cavities before it reaches your vents. We use duct sealing mastic, a thick water-based compound that brushes onto seams and cures to a flexible, permanent seal, plus mechanical fasteners at joints that see vibration or thermal expansion. For accessible leaks in main trunk lines, we may also apply aerosolized sealant through a pressurized injection system that finds gaps we can’t reach by hand.
A typical whole-home HVAC duct sealing in Cherry Valley runs $450 – $1,200. The lower end covers manufactured homes with short, accessible duct runs. The upper end applies to large ranch homes with multiple zones, extensive attic ductwork, or significant disassembly required to reach buried junctions. Every price is written down before we start.
Pressure Testing Before and After
We run a duct blaster test to measure leakage in CFM25, cubic feet per minute at 25 Pascals of pressure. Most Cherry Valley homes we test leak 20 – 35% of total airflow. After sealing, we target below 10%, often hitting 5 – 7%. You get the before and after numbers in writing.
Register Boot Sealing
The connection between your duct trunk and the wall or floor register is a common failure point, especially in older Cherry Valley homes where settling has pulled boots away from drywall. We seal these with mastic and support straps, not tape that dries and falls off in the attic heat.
Trusted Brands We Service in Cherry Valley
Our equipment roster includes Nikro negative-air machines for controlled containment during access work, plus filtration and sealing products from Honeywell, Aprilaire, and Abatement Technologies. We stock mastic, foil tape, and mechanical fasteners sized for the duct gauges common in Cherry Valley’s 1970s – 1990s housing stock, so we’re not ordering parts and making you wait. For manufactured home systems with non-standard sizing, we carry adapters that let us seal properly without forcing ill-fitting hardware. When we leave, your system is sealed to the same standard we’d apply in a commercial installation, explained in plain terms before we pack up.
Common Duct Sealing Problems We See in Cherry Valley Homes
- Seams separated by decades of Santa Ana wind pressurization. Cherry Valley’s afternoon winds don’t just blow dust through the pass; they create pressure differentials that flex duct seams year after year. By the time we open an attic on a 1975 ranch, the longitudinal seams have gapped enough to lose 15 – 20% of airflow.
- Wildfire ash accelerated corrosion at metal joints. The fine alkaline ash from San Gorgonio Wilderness fires settles in attics and on duct surfaces. Combined with temperature swings, it corrodes galvanized seams faster than in coastal climates. We see pinhole leaks at joints that look intact until we pressure-test.
- Manufactured home duct chases with no sealing at all. Many manufactured homes on permanent foundations in Cherry Valley were installed with flex duct simply laid in the chase, not sealed to the plenum. The chase becomes a return path for dusty crawl space air. We seal plenum connections and support flex runs to prevent sagging that traps debris.
- Single-wall duct runs with failed tape. Duct tape, ironically, was never meant for ducts. The adhesive fails in Cherry Valley’s attic heat, leaving brown, brittle strips hanging from seams. We remove all old tape and replace it with mastic and foil-backed tape rated for 200°F continuous exposure.
Pricing for Duct Sealing in Cherry Valley, CA
Whole-home duct sealing in Cherry Valley typically runs $450 – $1,200. Most ranch-style homes and manufactured homes fall between $550 – $850. What moves the number: linear footage of ductwork, accessibility (crawl space vs. walk-in attic), whether we need to remove insulation to access seams, and whether we’re also insulating after sealing.
We do not quote per-vent or per-linear-foot teaser prices that balloon once we’re inside. One flat price per system, agreed in writing before work starts. That price includes pressure testing, sealing all accessible supply and return seams, register boot sealing, and a post-job report with before-and-after leakage numbers. If we find damage that requires repair beyond sealing, we stop and explain the options. No surprises at the door.
Estimates are free. Call (361) 326-5060 and we’ll schedule a technician to inspect your system, measure leakage, and give you a written price that doesn’t change.
We Also Serve Cities Near Cherry Valley
Our Duct Sealing in Cherry Valley crews also travel to Los Angeles, San Diego, San Jose, and San Francisco for scheduled projects and multi-system commercial work. Dispatch and scheduling for Cherry Valley are coordinated from our Inland Empire office, with local crews carrying the full equipment inventory needed for same-day sealing and testing.
Serving Cherry Valley, CA - Our Local Coverage Area
We’re based in the Cherry Valley 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 Cherry Valley
We typically schedule Cherry Valley appointments within 3 – 5 business days, and our phones are answered by a live person 24/7 if you need to book or reschedule. Call (361) 326-5060 to check current availability.
Yes, we seal ducts from the infill tracts near the highway out to the ranch properties toward the San Gorgonio foothills, including manufactured homes on permanent foundations that many companies won’t service. Our trucks carry equipment for both standard and compact duct systems.
We don’t classify duct sealing as an emergency service, but if a leak is causing your system to fail entirely or distributing wildfire ash into living spaces, we prioritize scheduling and can often accommodate within 24 – 48 hours. Call (361) 326-5060 to explain the situation and we’ll find the earliest opening.
Cherry Valley pricing is comparable to Beaumont and Yucaipa, though rural properties with longer duct runs or limited attic access may run toward the higher end of our $450 – $1,200 range. Coastal cities to the west tend to be 10 – 15% higher due to travel and labor costs. We base your price on your specific system, not your ZIP code.
Every duct sealing job is covered by our 365-Day Done Right Promise in writing. If any sealed joint fails within a year, we return and make it right at no charge, including a free second visit. The guarantee is backed by Hollis Air Duct Cleaning, part of the Garrison Partners family since 2004.
We also handle Air Duct Cleaning in Cherry Valley and Dryer Vent Cleaning in Cherry Valley if your system needs more than sealing. Many homeowners combine services for a single visit and one written price.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Cherry Valley since 2004.