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 Chowchilla
Duct sealing in Chowchilla typically costs $450 – $850 for a complete residential system, and every job starts with a written price that does not change once our technician is inside your home. We’re the Chowchilla crew from Hollis Air Duct Cleaning, dispatching from our Fresno office to serve homes across this part of the Central Valley. You can reach us at (361) 326-5060 for a free estimate, and when we set a window, we arrive inside it. That’s The Garrison Standard, and it’s how we’ve operated since 2004.
Chowchilla’s not a generic market to us. We’ve worked on the original galvanized ductwork in homes near Robertson Boulevard, and we’ve sealed flex duct in newer subdivisions off Highway 152 where builders cut material costs. The almond harvest here sends a fine gray-brown silt through the air that behaves differently than ordinary household dust. It finds every gap, every seam separation, every crushed flex run. Local expertise matters because the failure modes in Chowchilla are specific to this valley, this agriculture, this housing stock.
Why Hollis Air Duct Cleaning Is Chowchilla’s Preferred Duct Sealing Company
We’ve built our reputation in Chowchilla on showing up uniformed, background-checked, and ready to explain what we’re seeing before we touch anything. Our technicians carry Rotobrush rotary systems and Abatement Technologies HEPA filtration equipment, the same tools commercial crews use, and we walk homeowners through the camera inspection so they understand why a particular joint needs sealing or why a flex run needs replacement instead.
The 365-Day Done Right Promise applies to every Chowchilla job in writing. If our seal fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround. Our phones are answered by a live person 24 hours a day, 7 days a week, so when you call (361) 326-5060, you talk to someone who can schedule you, not a voicemail loop that disappears into a callback queue.
Dispatch and scheduling for Chowchilla are coordinated from our Fresno, Central Valley office, but the crews that arrive at your door are local to this service area. They know the difference between Chowchilla’s mid-century housing stock and its newer tract developments, and they know that homes near the orchards see different duct loading than homes closer to town. That local knowledge changes how we inspect and what we prioritize.
Duct Repair in Chowchilla
Duct Repair in Chowchilla addresses the physical damage that happens when galvanized seams separate, flex duct crushes or tears, or rodents compromise the runs in attics and crawl spaces. We see this most often in the older single-family homes built through the mid-20th century, where original galvanized ductwork has simply aged past its service life, and in newer subdivisions where lower-cost flex duct failed faster than expected under Central Valley temperature swings and harvest-season dust loading. A typical Duct Repair in Chowchilla runs $300 – $650 depending on material type, accessibility, and whether we’re patching sections or replacing full runs.
When Repair Beats Replacement
Not every damaged duct needs full replacement. Isolated seam separations in accessible galvanized trunk lines often repair cleanly with proper mastic application and mechanical reinforcement. We make this call based on camera inspection, not guesswork, and we show you the footage so you understand why we’re recommending one path over another.
Flex Duct Failures in Newer Homes
Chowchilla’s newer subdivisions have a specific problem: flex duct that was already marginal quality gets crushed during installation or torn by attic work, then taped over instead of properly replaced. Tape on torn flex is a temporary patch that fails again. We replace the damaged section with properly supported new material and seal the connections.
Air Duct Sealing in Chowchilla
Air Duct Sealing in Chowchilla closes the gaps, seams, and connection points that let conditioned air escape into your attic, crawl space, or walls, and that pull unfiltered outside air into your supply. In this valley, sealing is often tied to harvest-season intrusion: the fine gray-brown silt from almond processing finds every opening and circulates through your home until the ducts are properly sealed at the source. A complete Air Duct Sealing in Chowchilla typically runs $450 – $850 for the full system, with one flat price agreed before work starts, no per-vent counting.
The Camera Inspection First
We don’t seal what we haven’t seen. Our Duct Sealing team runs a camera through the full system to locate disconnected runs, seam separations, and compromised connections behind walls or in attic spaces. Skipping this step means hidden leaks stay hidden, and your system keeps losing pressure and pulling in dust.
Mastic, Tape, and Mechanical Seals
Different leaks need different solutions. Galvanized seams get mastic and mesh reinforcement. Flex duct connections get proper mechanical clamps and sealant. We don’t use duct tape as a permanent solution, and we don’t apply sealant over crushed or torn flex without addressing the underlying damage. The right material for the right failure.
Trusted Brands We Service in Chowchilla
Our Chowchilla trucks carry parts and equipment from Aprilaire, Abatement Technologies, Guardsman, and Rotobrush, so we’re not running to Fresno mid-job for a fitting or a filter. Aprilaire media air cleaners integrate with sealed duct systems to maintain pressure balance while filtering the fine particulate that gets past standard fiberglass. Abatement Technologies HEPA negative-air machines let us work safely in attics during active dust conditions without contaminating the living space. Guardsman filtration products handle the high-loading environment of Central Valley harvest season. When we seal your system, we do it with parts that hold up to Chowchilla’s actual conditions, not generic hardware-store material that degrades in two seasons of valley heat.
Common Duct Sealing Problems We See in Chowchilla Homes
- Register-only sealing while attic leaks remain open. Some crews seal the supply registers you can see and call the job done, leaving return duct seams and air handler connections in the attic wide open. In Chowchilla, that means almond-harvest silt keeps getting pulled straight into your system through the gaps you can’t see.
- Mastic over crushed flex duct in newer subdivisions. Builders in Chowchilla’s recent growth areas used lower-cost flex duct that crushes easily under foot or improper support. Painting mastic over the crush doesn’t restore airflow or fix the leak; it hides the problem until the duct fails completely.
- Skipped camera inspections missing disconnected runs. Without looking at the full system, hidden separations behind walls or above ceilings go undetected. The homeowner gets a sealed register and a system that still loses 30% of its pressure to the attic.
- Harvest-season emergency calls that sealing prevents. We get calls every September and October from Chowchilla homeowners whose systems are suddenly circulating visible dust. Often the ducts were leaking all year; the harvest just made it impossible to ignore. Proactive sealing before harvest season costs less than emergency cleaning after.
Pricing for Duct Sealing in Chowchilla, CA
A typical complete duct sealing in Chowchilla runs $450 – $850 for a residential system, with most single-family homes falling in the $550 – $700 range. What moves you within that band: the material type (galvanized trunk lines take more labor than accessible flex runs), the extent of separation or damage found during camera inspection, and whether we’re sealing a compact attic system or working through a sprawling crawl space. We do not price per vent. One flat price per system, agreed in writing before any work starts. No counting registers, no add-ons at the door, no “it turned out worse than we thought” surprises.
Repairs that require material replacement, such as torn flex duct or failed galvanized sections, run $300 – $650 depending on linear footage and accessibility. We explain what we found, show you the camera footage, and give you the full written price before we pick up a tool. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Chowchilla
Our crews regularly work in Firebaugh, Madera, Mendota, and Kerman, so if you’re just outside Chowchilla city limits or managing properties across the valley, the same scheduling team and the same written pricing apply. Dispatch runs from our Fresno office, and we route to minimize your wait time.
Serving Chowchilla, CA - Our Local Coverage Area
We’re based in the Chowchilla 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 Chowchilla
Most well-maintained systems need sealing every 10 – 15 years, but Chowchilla homes near active orchards or dairies often benefit from inspection every 5 – 7 years due to accelerated wear from dust loading. If you’re seeing visible dust at registers during harvest season or rooms that won’t hold temperature, that’s your signal to call (361) 326-5060 for a camera inspection.
Chowchilla dust is predominantly fine agricultural silt from soil disturbance, mechanical harvesting, and pollen release, not the skin cells and fiber mix of typical indoor dust. It carries a distinctive gray-brown color, infiltrates ductwork more aggressively through small gaps, and requires HEPA-grade filtration to capture effectively. Standard household filters load up fast during almond harvest.
We charge one flat price per system, never per vent. Per-vent pricing creates an incentive for the technician to find more vents to charge you for, and it penalizes homes with more extensive duct networks. Our price covers the complete sealing of supply and return runs, air handler connections, and accessible trunk lines, with the full amount written down before work begins.
Yes, and we do this more often than you’d expect. Several Chowchilla subdivisions built during the last growth wave used lower-cost flex duct that crushes, tears, or pulls loose at connections within the first few years. We inspect with a camera, replace damaged sections with properly supported material, and seal the system to handle Central Valley conditions.
We do not promise same-day service. Duct sealing is a scheduled job that requires proper inspection, material preparation, and protected work time in your attic or crawl space. We schedule inside specific windows, arrive within them, and complete the job without rushing. Call (361) 326-5060 for the next available appointment that fits your schedule.
We sealed the supply and return ducts in an older single-family home near Robertson Boulevard, where a camera inspection showed the original galvanized runs had separated at the seams and pulled dust straight from the attic into the registers. Using Abatement Technologies HEPA filtration under negative pressure, our tech sealed the joints and rebalanced the air handler, then handed the homeowner before-and-after photos of their own ducts so they could see the gray-brown harvest film was gone. One flat price for the system was agreed before we started, no per-vent counting.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Chowchilla since 2004.




Before
After
Before
After
Before
After