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 Kerman
Duct sealing in Kerman typically runs $450 – $1,200 for a whole-home system, with most jobs completed in a single visit after a written estimate. We’re the Duct Sealing crew serving Kerman from our Fresno, Central Valley office, and we know the local housing stock: the 1970s ranch homes near downtown with original metal ducts, the west-side tract homes built during the 2000s boom with flex-duct connections that loosen in the dry heat. Kerman’s agricultural dust doesn’t stay outside. It finds every gap, every disconnected joint, every corroded seam. When your blower motor and evaporator coil coat with that fine, talc-like soil, the efficiency drop feels like a failing AC unit. Often it’s a sealing problem, not a mechanical one. Call (361) 326-5060 for a free camera inspection and a written price before any work starts.
Why Hollis Air Duct Cleaning Is Kerman’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Kerman customers know what that means: a technician who arrives inside the quoted window, in uniform, with a background check you can verify. Our 365-Day Done Right Promise covers every duct sealing job in writing. If the seal fails or the problem returns within a year, we come back at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues. When you schedule Duct Sealing in Kerman, you’re talking to someone who can book your appointment now, not take a message for Monday.
We price every job in writing before touching your system. The number on the estimate is the number on the invoice. We’ve seen too many Kerman homeowners burned by low teaser quotes that balloon once the van is in the driveway. That doesn’t happen here.
Our crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, the same tools commercial HVAC contractors use. We explain what we’re doing and why, in plain terms, while we work.
Duct Insulation in Kerman
Duct Insulation in Kerman addresses a specific problem created by our climate: metal and flex ducts running through unconditioned attics lose cooled air rapidly during May-through-October runtime, forcing your system to cycle longer and pull more agricultural dust through every leak point. Proper insulation wraps the sealed duct in a thermal barrier, maintaining the temperature of conditioned air from the air handler to the register. In Kerman, where summer attic temperatures routinely exceed 130°F, uninsulated or degraded duct wrap can waste 20 – 30% of cooling energy before the air ever reaches your living room. A typical duct insulation job in Kerman runs $600 – $1,400 depending on accessible linear footage and whether we’re reinsulating after sealing work.
Attic Runs in Older Ranch Homes
Original 1970s metal ducts in downtown Kerman neighborhoods often had minimal insulation when installed, and decades of heat cycling have compressed or degraded what remains. We strip the old wrap, seal the seams with mastic and mesh, then apply new insulation rated for Central Valley temperature extremes.
Flex-Duct Reinsulation After Sealing
Newer west-side tract homes frequently have flex duct with torn or displaced insulation jackets, especially where crews compressed the flex during tight attic installations. We reposition the duct, seal the connection points, then restore the insulation barrier so your conditioned air arrives at temperature.
HVAC Duct Sealing in Kerman
HVAC Duct Sealing in Kerman is the core fix for efficiency loss that homeowners across the city misdiagnose as equipment failure. The process involves pressurizing the duct system to locate leaks, then sealing accessible joints with mastic and reinforced mesh, replacing crushed or disconnected flex runs, and verifying the repair with a post-seal pressure test. In Kerman’s agricultural environment, sealing matters more than in most California markets: every gap pulls in fine soil from almond and grape fields, coating blower motors and evaporator coils until the system chokes. A typical whole-home HVAC duct sealing job in Kerman runs $450 – $1,200, with simpler partial repairs starting around $300.
Camera Inspection Before Sealing
We run a borescope camera through your supply and return ducts before quoting. This lets us show you the crushed runs, disconnected joints, or corroded seams we’re proposing to fix. No guesswork, no surprises after work begins.
Pressure Testing After Repair
Once sealing is complete, we retest the system to quantify the improvement. You’ll see the before-and-after leakage numbers in writing. If the result doesn’t meet our standard, we keep working until it does.
Trusted Brands We Service in Kerman
Our Kerman crews work with professional-grade equipment from Nikro, Honeywell, and Aprilaire. Nikro negative-air machines and HEPA filtration systems capture the fine agricultural dust that standard shop vacuums recirculate. Honeywell and Aprilaire filtration components integrate with sealed duct systems to maintain air quality after we’ve left. We stock common sealing materials and replacement flex-duct sizes locally, so most Kerman jobs don’t wait on parts orders. When we find a crushed run or failed connection during your camera inspection, we can usually repair it same visit rather than scheduling a return trip.
Common Duct Sealing Problems We See in Kerman Homes
- Corroded metal seams in downtown ranch homes. Original galvanized ductwork from the 1960s and 1970s separates at longitudinal seams after decades of thermal expansion. The gaps pull unfiltered attic air and field dust directly into your system, bypassing the filter entirely.
- Crushed flex runs behind air handlers. Tight attic installations in Kerman’s older homes often kink the flexible duct where it bends around roof trusses. The restriction starves rooms of airflow while increasing static pressure, which strains the blower motor and accelerates coil fouling.
- Disconnected joints in west-side tract homes. The 2000s building boom produced fast installations with minimal fastening at flex-duct connections. Dry-season thermal cycling loosens these joints until they separate completely, dumping conditioned air into the attic and pulling field dust into the return.
- Soil-coated blower motors and evaporator coils. After dry, windy springs, we find Kerman blower assemblies caked with talc-like soil from almond and grape fields. Homeowners call for AC replacement; we find a sealing problem that costs a fraction of a new compressor.
Pricing for Duct Sealing in Kerman, CA
Whole-home duct sealing in Kerman typically runs $450 – $1,200. Partial repairs, single-run replacements, or targeted seam sealing start around $300. Duct insulation added after sealing runs $600 – $1,400 depending on attic accessibility and linear footage. What moves the price: how many runs need attention, whether we’re working with accessible metal duct or buried flex, and whether insulation replacement is part of the scope. Every job gets a written price before work starts. No per-vent pricing, no add-ons at the door. We photograph your ducts before and after so you can verify the work was done. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Kerman
Our Fresno, Central Valley office dispatches crews throughout the region. We regularly perform duct sealing in Fresno, Madera, Mendota, and Clovis, with the same written pricing and 365-Day Done Right Promise at every location. If you’re outside Kerman city limits but within the local service area, we apply the same scheduling and pricing standards.
Serving Kerman, CA - Our Local Coverage Area
We’re based in the Kerman 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 Kerman
The fine, talc-like soil lifted by dry spring winds infiltrates duct systems through every leak point, coating blower motors and evaporator coils until efficiency drops 20% or more. Kerman’s position among active farmland makes this a recurring seasonal issue, not a one-time maintenance need. Call (361) 326-5060 for a camera inspection that distinguishes sealing problems from equipment failure.
Most original metal duct in Kerman ranch homes can be sealed at the seams with mastic and mesh, then reinsulated, provided the metal itself hasn’t corroded through. We determine this during camera inspection; replacement is only necessary when the metal has failed structurally. Call (361) 326-5060 for an assessment and written estimate.
We run a borescope camera inspection of the supply and return ducts, measure system static pressure, and inspect the blower motor and evaporator coil for soil accumulation versus mechanical wear. If the coil is clean but airflow is weak, it’s likely a duct restriction. If the coil is caked with field soil and the ducts are leaking, sealing fixes the root cause. Call (361) 326-5060 to schedule the diagnostic.
We work to The Garrison Standard: arrive inside the quoted window, price in writing before touching equipment, complete the job by the book, and leave the site clean. Technically, we seal to SMACNA guidelines using mastic and reinforced mesh at all joints, replace failed flex with properly sized and supported runs, and verify with post-repair pressure testing. Call (361) 326-5060 for specifics on your system.
Yes. Fast installations from that era often used minimal mechanical fastening at flex-duct connections, and Kerman’s dry heat cycles have loosened many of them. We inspect every connection with a camera, resecure proper fittings, and seal with mastic where the original installer didn’t. This is one of the highest-return sealing repairs we perform in Kerman. Call (361) 326-5060 for a free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Kerman and the Central Valley since 2004.