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 Huron
If your utility bills keep climbing through Huron’s long, hot summers and some rooms never cool down, your ductwork is probably leaking conditioned air into the attic or crawlspace. Duct sealing closes those gaps so the air you pay for actually reaches your living spaces. In Huron, where HVAC systems run almost year-round and agricultural dust works its way into every structure, properly sealed ducts aren’t a luxury, they’re how you stop throwing money at the power company.
We’re the Duct Sealing in Huron crew from Hollis Air Duct Cleaning. Our dispatch and scheduling run from our Fresno office in the Central Valley, and our technicians make the trip to Huron regularly. We know the stucco and wood-frame homes along Lassen Avenue, the original farmworker housing off Bush Street, and the challenges of sealing ductwork that’s been shaking loose since the 1960s. When you call (361) 326-5060, a live person answers, 24 hours a day, 7 days a week. No voicemail loops, no callback queues.
Why Hollis Air Duct Cleaning Is Huron’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our track record predates most competitors who’ve come and gone in the Central Valley. That longevity matters in a town like Huron, where contractors who don’t understand agricultural dust and older housing stock tend to give up and move on.
Our technicians are background-checked, uniformed, and held to The Garrison Standard. That means arriving inside the quoted window, pricing the job in writing before touching anything, completing the work by the book, and leaving your home clean. If the seal fails within a year, our 365-Day Done Right Promise covers a free return visit to make it right. No negotiation, no runaround.
We’ve sealed ducts in homes from the original downtown grid near the railroad tracks to the newer developments toward the edge of town. We understand how Huron’s processed crop residue, that fine sticky film from tomato and garlic processing plants, coats ductwork and accelerates joint failure. That local knowledge changes how we prep a job and what materials we bring.
Duct Sealing Services in Huron
Duct Sealing Services in Huron address the leaks, gaps, and disconnected joints that plague the town’s older housing stock. Most Huron homes were built between the 1930s and 1970s for farmworker families, with original ductwork that’s undersized for modern HVAC loads and held together with tape that’s dried to dust. We seal supply and return plenums, register boots, and longitudinal seams using mastic compound and mechanical fasteners rated for Central Valley temperature swings. A typical whole-home duct sealing job in Huron runs $850 – $1,400 depending on system size and accessibility, with written pricing agreed before we start.
Supply Duct Sealing
Supply ducts carry cooled air from your handler to each room. In Huron’s single-story stucco homes, these often run through unconditioned attics where 120°F summer heat bakes the tape off joints. We apply duct sealing mastic, a thick, fiber-reinforced compound that remains flexible and won’t dry out like foil tape. For larger gaps, we add mesh backing before mastic application.

Return Path Repair
Return ducts pull air back to your HVAC system for reconditioning. When they’re leaky, they suck in attic dust, agricultural debris, and insulation particles. In Huron, where the air carries processed crop residue from nearby plants, a compromised return path means that residue circulates through your home. We seal return plenums and repair disconnected flex duct with proper collars and straps.

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.
Duct Insulation in Huron
Duct Insulation in Huron protects sealed ductwork from the extreme attic temperatures that define Central Valley summers. Even perfectly sealed ducts will bleed heat if they’re uninsulated or wrapped with deteriorated fiberglass. We install new insulation blankets or replace degraded wrap on existing lines, focusing on the R-value appropriate for Huron’s climate zone. A typical duct insulation project in Huron runs $600 – $1,100 for a standard single-story home, with exact pricing written before work begins.
Attic Duct Wrap Replacement
Original fiberglass wrap crumbles after decades in Huron’s dry heat. We remove degraded material, verify seal integrity underneath, then install new insulation with vapor barrier facing correct to the conditioned side. This matters because unwrapped metal duct in a 140°F attic can lose 30% of cooling capacity before the air reaches your register.
Plenum and Trunk Line Insulation
The plenum, where your air handler connects to the duct trunk, is a critical thermal bridge. We insulate this junction and any exposed trunk lines in unconditioned spaces, using materials rated for the temperature extremes common in homes near Highway 198 and the agricultural processing corridor.
Trusted Brands We Service in Huron
Our equipment roster includes professional-grade tools from Rotobrush and Nikro, plus filtration and sealing products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. We don’t show up with hardware-store caulk guns and hope for the best. For Huron customers, this means we stock the right mastic compounds, mechanical fasteners, and insulation materials for your specific duct type, so we’re not ordering parts and making you wait. Our rotary brush systems and negative-air machines, the same gear commercial crews use, let us clean before we seal, ensuring the mastic bonds to metal rather than dust. If your system uses Honeywell or Aprilaire filtration components, we can inspect and advise on those while we’re sealing.
Common Duct Sealing Problems We See in Huron Homes
- Original tape turned to powder. The foil tape applied in Huron’s 1960s-era homes has long since dried out and flaked away, leaving joints held together by rust and habit. We find this constantly in the wood-frame houses off Bush Street and the older stucco homes near downtown, where attic temperatures accelerate adhesive failure.
- Undersized ducts working overtime. Farmworker housing built fast and cheap often has ductwork too small for modern HVAC loads. The system runs longer, pressure builds, and seams split. Sealing alone won’t fix undersizing, but we’ll tell you honestly and price both options.
- Agricultural residue accelerating corrosion. That fine, sticky film from tomato and garlic processing doesn’t just dirty your registers. It settles on duct metal, holds moisture, and speeds corrosion at joints. Standard vacuums can’t fully remove it, which is why we clean with Rotobrush rotary systems before applying sealant.
- Disconnected flex duct in crawlspaces. Huron’s low annual rainfall means many homes have accessible crawlspaces, but rodents, moisture, and age disconnect flex runs from boots. We reconnect with proper collars and seal with mastic rated for damp conditions.
Pricing for Duct Sealing in Huron, CA
A typical whole-home duct sealing job in Huron runs $850 – $1,400. Duct insulation alone runs $600 – $1,100. Combined sealing and insulation for a full system typically falls between $1,200 and $2,000. What moves you within that range: system size (how many registers and returns), attic accessibility (truss spacing, existing insulation depth), and the condition of existing ductwork (whether we can seal in place or need to replace sections first).
We don’t quote per-vent teaser prices that balloon once we’re in your home. The price is written down before any work starts, and it does not move at the door. Every Huron job gets the same 365-Day Done Right Promise: if our seal fails within a year, we return and make it right at no charge, including a free second visit. Call (361) 326-5060 for a free estimate. We’ll ask about your home’s age, system type, and any rooms that don’t cool properly, then give you an honest range before scheduling.
We Also Serve Cities Near Huron
Our crews regularly travel from the Central Valley to Huron and surrounding communities. We also handle Air Duct Cleaning in Huron and Dryer Vent Cleaning in Huron for homeowners in Coalinga, Kerman, Selma, and Fowler. Each location receives the same Garrison Standard: written price, background-checked uniformed technicians, and the full year-long guarantee.
Serving Huron, CA - Our Local Coverage Area
We’re based in the Huron 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 Huron
We typically schedule Huron appointments within 3 – 5 business days, with dispatch coordinated from our Fresno office. Agricultural processing season can create spikes in demand, so calling early in the week helps secure your preferred slot. Call (361) 326-5060 to check current availability.
Yes, we seal ducts across Huron including the original downtown grid, homes along Lassen Avenue, and properties toward the city edges near the agricultural plants. The housing age and type vary by area, but our pricing structure and guarantee apply uniformly.
We don’t classify duct sealing as an emergency service, but our phones are answered by a live person 24 hours a day, 7 days a week. If your system has failed entirely and you suspect duct damage, we’ll assess urgency honestly and schedule accordingly. For true HVAC emergencies, we recommend contacting your heating and cooling contractor first.
Huron pricing runs comparable to Coalinga and Kerman, slightly below Fresno metro rates due to lower travel and overhead costs for our Central Valley crews. The main price driver is your home’s specific duct condition and accessibility, not your zip code. We use the same written pricing standard across all locations.
Every duct sealing job in Huron carries our 365-Day Done Right Promise in writing. If the seal fails, if joints reopen, or if you notice the same hot rooms returning within a year, we come back and make it right at no charge. This includes a free second visit, not a discounted one. The guarantee transfers if you sell the home during that year.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Huron and the Central Valley since 2004.




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