Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
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Before
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Fontana?
Duct repair and sealing in Fontana typically runs $350 to $1,800, with most single-area repairs landing between $400 and $650 and full-system sealing on a larger home climbing toward $1,500 or more. The price depends mostly on how many sections are damaged, whether the trouble sits in an accessible attic run or a buried wall chase, and whether disconnected joints need reconstruction or just sealing. Reconnecting one failed joint is a quick job; rebuilding a collapsed trunk line under a 1970s Fontana ranch home is a longer one.
We repair what others only clean around. That matters here because a lot of duct work in Fontana gets “cleaned” while the actual leaks and disconnected sections stay right where they were, bleeding conditioned air into the attic. This guide breaks down real Fontana pricing so you can budget before anyone walks through the door.
Key Takeaways
- Most Fontana duct repairs fall between $350 and $1,800, with full-system sealing at the higher end.
- Disconnected flex duct in the attic is the most common single repair we see, usually $400 to $650.
- Fontana’s summer heat (routinely over 100°F) puts real stress on duct tape, mastic, and flex connections.
- Sealing isn’t just comfort – it stops attic air and dust from being pulled into your living space.
- Free estimates are available by calling (855) 501-3681.
Duct Repair & Sealing Cost Breakdown (2026)
Below is what we see in the Fontana market for the work itself. These are the price ranges we quote, not national averages pulled off a calculator. Every job gets a firm number after a walkthrough, but this gives you a realistic starting point.
| Service | Typical Price Range | What It Covers |
|---|---|---|
| Reconnect a single disconnected duct | $350 – $650 | Re-securing a flex run or boot that has come loose, new mastic and mechanical fastening |
| Seal a partial duct system (5-10 joints) | $450 – $900 | Mastic and foil-tape sealing at accessible joints, boots, and plenum connections |
| Full-system duct sealing | $900 – $1,800 | Sealing every accessible joint, register boot, and trunk connector across the home |
| Replace a damaged flex run (per section) | $250 – $500 | Removing crushed or torn flex duct and installing new insulated flex |
| Repair a torn or crushed trunk line | $600 – $1,400 | Rebuilding rigid trunk damage, re-insulating, reconnecting branch runs |
| Register boot reconnection | $200 – $450 each | Reattaching boots that have separated from the subfloor or wall |
| Dryer vent repair or reconnection | $200 – $550 | Fixing crushed or disconnected dryer vent runs – a fire-safety repair, not a comfort upgrade |
What pushes a Fontana job toward the high end of these ranges? Attic access in older single-story homes off Sierra Avenue and in the areas around Cypress Avenue can be cramped and hot, which slows every task. Homes built in the 1980s and earlier often have duct systems that were never sealed properly to begin with, so what looks like “one leak” turns out to be five or six. When we get up there with the Rotobrush and Nikro equipment and inspect the full run, we can tell you exactly which sections need rebuilding and which just need sealing.
What keeps a job on the low end? A single disconnected run in an accessible attic with clear workspace. Those we can usually finish same-day.
What Affects Duct Repair & Sealing Pricing in Fontana
Prices in Fontana shift based on the realities of the housing stock and the climate, not guesswork. Here’s what actually moves the number.
- Age and condition of the duct system. Fontana has a lot of ranch homes from the 1960s through the 1980s. Duct tape from that era dries out and fails, and flex duct that’s been baking in a 140°F attic for decades gets brittle. Older systems usually need more sections replaced, not just resealed.
- Attic heat and accessibility. Fontana summers regularly climb past 100°F, and attic temperatures run far higher. A low, tight attic with limited decking takes more time and labor to work in than a tall, open one. Accessibility is one of the biggest line-item differences between two otherwise similar jobs.
- Number of leaks and disconnected sections. One joint is a quick repair. Six or eight across a full system is a different scope of work. We count every connection during inspection rather than estimating.
- Location of the damage. Ducts in an open attic are straightforward. Ducts buried in a wall chase, under a slab, or behind drywall cost more because access and patching become part of the job.
- Rigid vs. flex duct. Rigid metal ductwork is more durable but repairs differently and costs more per section than replacing a failed flex run. Many Fontana homes have a mix of both.
- Sealing method and materials. We use mastic and mechanical fasteners, not just tape. It lasts longer and seals tighter, which affects the price but also means you’re not calling someone back next summer when the tape peels in the heat.
One local pattern worth knowing: homes near the foothills at the north edge of Fontana, where the Santa Ana winds push more dust and debris, tend to have duct systems that load up faster. That dust doesn’t just sit in the ducts – if the system is leaking, it gets pulled into your air. Repair and sealing work hand in hand with duct cleaning, and we often recommend both so you’re not sealing debris into a dirty system.
How to Save on Duct Repair & Sealing
You can’t always control how many leaks your system has, but you can control how the job gets scoped and priced. A few practical ways to keep the number down:
- Get a full inspection before you commit. A proper walkthrough that maps every joint and connection means you’re paying to fix what’s actually broken, not guessing. We bring the Rotobrush and Nikro inspection equipment to every estimate – the same tools used on the repair – so the quote reflects reality.
- Bundle sealing with cleaning. If your ducts are dirty and leaking, doing both in one visit saves the trip and labor time. Sealing a clean system also means you’re sealing in clean air, not dust.
- Fix leaks before they become collapses. A small disconnected joint is a $400-ish fix. Left through a hot Fontana summer, that same joint can strain the blower and lead to bigger damage. Early repair is genuinely cheaper.
- Don’t skip the dryer vent. A crushed or disconnected dryer vent is a fire risk, and fixing it during the same visit costs far less than a separate trip later. It’s one of the specialty services we handle alongside duct work.
- Ask for a written itemized estimate. Free estimates from us include the line items, so you can see exactly what’s being sealed and what’s being replaced. Call (855) 501-3681 to schedule one – no pressure and no coupon required.
Why We Repair What Others Only Clean Around
A lot of the calls we take in Fontana are from homeowners who just had their ducts cleaned and still feel dust, still feel rooms that won’t cool evenly. Often the reason is simple: nobody looked at the actual condition of the duct run. Cleaning a system with disconnected sections just moves air into the attic instead of the house.
Air duct work is all we do, and we bring the tools to prove it. Our Duct Repair & Sealing in Fontana service uses professional-grade equipment, not a shop-vac and a ladder. Rotobrush and Nikro systems reach every linear foot of your duct run, and Abatement Technologies containment equipment keeps debris from spreading into the rest of the home while we work. That matters if anyone in the house has allergies or if there’s been recent renovation debris in the system.
We also work with whole-home air quality systems – Honeywell and Aprilaire products – so we understand how your filtration and ductwork interact. Cleaner air starts inside your walls, not just at the filter. And a duct system that isn’t sealed undermines every filter and air purifier downstream of it.
For a deeper look at the repair side of that work, our page on air duct repair in Fontana walks through the full scope, and our guide on duct sealing in Fontana explains how the sealing process protects your conditioned air. If you’re not sure whether you need repair or a cleaning first, air duct cleaning in Fontana is a good place to start understanding the difference.
We also serve homeowners throughout the surrounding region. If you’re in a neighboring city, we have dedicated pages for duct repair and sealing in Riverside, duct repair and sealing in Corona, duct repair and sealing in Rancho Cucamonga, and duct repair and sealing in Ontario. Our dryer vent cleaning in Fontana service covers the fire-safety side of the same system, and our overview of dryer vent cleaning in Riverside explains why that work is a safety priority. For regional cleaning needs, see air duct cleaning in Corona, air duct cleaning in Ontario, and dryer vent cleaning in Corona.
FAQs – Duct Repair & Sealing Cost
How much does duct repair and sealing cost in Fontana?
Most duct repair and sealing jobs in Fontana cost between $350 and $1,800, with a typical single-repair job landing near $400 to $650 and full-system sealing closer to $1,500. The final number depends on how many sections are damaged and how accessible they are. Call (855) 501-3681 for a free estimate with an itemized breakdown.
Is it cheaper to repair or replace my ductwork?
Repair is almost always cheaper in Fontana – repairing and sealing a few failed sections runs $350 to $1,800, while a full duct replacement typically costs several thousand dollars. Replacement only makes sense when a large portion of the system is crushed or failing. A proper inspection tells you which you actually need; call (855) 501-3681 to find out.
Why does duct sealing cost more in hot Fontana attics?
Attic access and heat drive up labor, and Fontana attics routinely exceed 130°F in summer, which slows hands-on work and adds safety planning. Tight, low-clearance attics in older Fontana homes cost more to work in than open ones. Call (855) 501-3681 and we’ll give you a firm quote based on your actual attic.
Do I need duct cleaning at the same time as repair?
Often yes – if there’s visible dust or debris in the system, sealing it before cleaning traps that debris in place, so the two are usually done together. Bundling saves the trip and labor. Call (855) 501-3681 to schedule both in one visit.
Can you come out today for duct repair in Fontana?
Same-day service is often available for single-repair jobs like disconnected flex duct, depending on schedule. Call (855) 501-3681 to check availability – free estimates are always included.
Does duct sealing actually lower energy bills in Fontana?
Sealing leaks keeps conditioned air where it belongs, which means your system doesn’t have to work as hard to cool the house in Fontana summers. Many homeowners notice more even cooling and less dust after sealing. For a walkthrough of what’s leaking, call (855) 501-3681.
Get a Free Fontana Duct Repair Estimate
If your system is leaking, disconnected, or just not keeping the house comfortable through Fontana’s heat, the fastest way to know what it’ll cost is to have someone inspect it properly. We quote the real number, in writing, before any work starts – and we show you exactly which sections need attention. Air duct work is all we do, and we bring the equipment to prove it. Call (855) 501-3681 today for a free estimate.
Pricing reflects the Fontana market as of 2026. Duct Cleaning Fontana offers free estimates – call (855) 501-3681.
What Our Customers Say
"Job was done well and the house smells better. There was some dust knocked loose around a couple of the registers that I had to wipe down afterward."
- Eduardo Martinez"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Rafael Herrera"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Oscar Salazar