Air Duct Repair in Pomona - Leakage Measured, Then Priced in Writing

Trusted Air Duct Repair for Pomona Homeowners

Air duct repair in Pomona usually means one of three things: a section of duct has come apart, a hole or tear is pulling attic air into your system, or a flex duct has been crushed. We fix all three, and we do it after first cleaning the duct run so we can see exactly what we’re working with. Since 2015, Barry Walsh and our technicians have handled thousands of duct repairs across the Pomona Valley, and we’re typically on site within one business day. Call (833) 589-9571 for a free estimate, and we answer 24/7.

Call (833) 589-9571

Key Takeaways:

• Duct repair stops conditioned air from leaking into attics and crawl spaces
• Every repair starts with a camera inspection of the affected section
• Same-day repair is usually possible for separated or crushed ducts
• Estimates are free and the written price is set before work begins

HVAC Duct Installation

HVAC Duct Installation is the process of adding new duct runs to serve rooms that were never properly connected to the central system, or building out an entirely new distribution network during an addition or remodel. In Pomona, where many homes from the 1950s and 60s still run original sheet-metal ductwork, fresh installation is often the cleaner solution than patching aging sections repeatedly. Duct Cleaning Pomona handles both new construction and retrofit work, and a typical residential installation runs $1,800 to $4,200 depending on the number of runs and accessibility through the attic or crawl space.

New Runs for Additions

When a Pomona homeowner adds a bedroom or converts a garage, the existing duct system rarely has the static pressure capacity to feed the new space. We calculate the correct duct diameter and add a dedicated run rather than tapping into a nearby branch, which starves both the new room and the old one.

Replacing Undersized Ductwork

Some Pomona homes were built with ducts sized for a smaller air handler than what’s installed today. Undersized ducts force the blower to work against resistance, which shortens equipment life and leaves far rooms starved for air. Installing correctly-sized trunks and branches restores balanced airflow and lowers static pressure across the system.

Air Duct Replacement

Air Duct Replacement means removing a damaged, collapsed, or contamination-saturated duct run and installing a new one in its place. It’s the right call when a duct has torn along a seam, been crushed by attic work, or been so saturated with construction dust or pest debris that cleaning cannot restore it. Duct Cleaning Pomona provides full replacement using rigid sheet metal or R-6 insulated flex depending on the application, with most single-run replacements in Pomona costing $400 to $1,200 per run including materials and labor.

When Repair Won’t Cut It

We will always tell you when a duct can be repaired instead of replaced. That said, ducts with multiple pinhole leaks, crushed internal supports, or mold-stained insulation are replacement candidates, and patching them just shifts the failure to another spot a few months later.

Upgrading Insulation While You’re at It

Pomona summers push attic temperatures past 130 degrees, and uninsulated ductwork in that environment bleeds cooled air before it reaches the register. When we replace a duct in an unconditioned attic, we wrap new runs in R-6 or better insulation so the air handler doesn’t have to work overtime to compensate.

Ductwork Repair

Ductwork Repair covers the structural fixes that keep air moving where it belongs: resealing separated joints, patching holes, reconnecting loose flex runs, and replacing damaged hangers. In Pomona, where many duct systems run through hot attics, the most common failure we see is duct tape that has dried out and let go, leaving a gap that pulls in dusty attic air. Duct Cleaning Pomona repairs these leaks with mastic sealant and foil tape rated for high-temperature use, and a typical joint repair runs $250 to $550 depending on access and how many connections have failed.

Sealing Leaks at the Source

A duct leak isn’t only a waste problem; it’s a health problem because the system pulls in whatever surrounds the leak point. If the return plenum has a crack, that’s unconditioned attic air, insulation fibers, and dust being drawn straight into your living space. Sealing these leaks reduces the particulate load and lets your filter do its actual job.

Reconnecting Separated Runs

Flex ducts sometimes pull away from their start collars, especially in Pomona attics where temperature swings and settle movement work connections loose. We reattach them with mechanical fasteners rather than tape alone, which is the difference between a fix that lasts years and one that fails again by the next cooling season.

Duct Replacement

Duct Replacement is the decision to replace a section or an entire system of ductwork, usually because the cumulative cost of repeated repairs is no longer sensible. In Pomona, where many homes in neighborhoods like Phillips Ranch and Westmont have original 40-year-old ducts, a full replacement can cut leakage from 30% down to near zero. Duct Cleaning Pomona quotes whole-system Duct Replacement in Pomona from $3,500 to $7,800 for the average 1,500 to 2,500 square foot home, with the written estimate broken down by run.

Full System Replacements

When repeated repairs add up, a new system is often the better investment. Replacing all the ductwork at once gives you sized-right runs, sealed connections, and updated insulation, plus a system that is measurably leak-free when we finish. We schedule a full system replacement around your air conditioning needs so the home isn’t left without climate control during the Pomona summer.

Spot Replacements on Damaged Sections

Not every replacement job means all new ducts. If one run was crushed by a foot through the ceiling or shredded by a rodent, we will replace just that section and test the surrounding connections for integrity. This approach costs a fraction of a full replacement and solves the immediate problem without unnecessary work.

Ductwork Installation

Ductwork Installation is the complete build-out of a distribution system, typically for a newly constructed home, an extensive remodel, or a building that has never had central air. Pomona’s mix of older post-war homes and newer hillside construction means installation jobs vary widely in scope. Duct Cleaning Pomona installs complete systems using code-compliant materials and properly sealed connections, with whole-home installation in Pomona running $4,000 to $9,500 depending on square footage, number of zones, and whether the ducts run through the attic or the crawl space.

New Construction in Pomona

We work with builders and general contractors across Pomona to lay out and install duct systems in new construction. The process includes load calculations for each room, sizing ducts to the equipment, and pressure testing before insulation goes in, so the inspection passes the first time.

Retrofit into Existing Homes

Adding central air to a Pomona home that was built without it requires running returns in strategic locations and planning supply runs around structural framing. We handle this work regularly and coordinate with the drywall and electrical contractors so the finished result looks like it was always there.

Brands We Service

We work with Rotobrush systems in the field every day, and our crews know how to inspect Rotobrush-cleaned ducts for damage that predates the cleaning or was exposed by it. The spinning brush head does more than clean; it shows us exactly where flex duct has slipped off a collar or where a drywall screw pierced a run.

For containment-grade work, our Nikro HEPA negative-air machines run during repairs to capture dust and debris released when we open a duct section. That keeps repair sites clean and prevents whatever was inside the ducts from spreading through the house. Whether you have Rotobrush or Nikro equipment, or any other make, we can help.

Signs You Need a Pro Right Now

• Conditioned rooms never reach the thermostat setting. One or two far rooms staying warmer than the rest often points to a disconnected or severely leaking duct run. The longer it goes, the harder the compressor works and the worse the energy bill gets in Pomona’s summer heat.
• Dust collects on surfaces within hours of cleaning. When a return-side duct has an opening, it’s pulling unfiltered attic or crawl space air directly into your home. The result is a fine dust layer that won’t quit until the leak is sealed.
• You can hear rushing air where no register exists. Hissing or rushing behind walls or above ceilings means pressurized supply air is escaping into the building cavity. That air isn’t reaching your rooms, and it’s also pulling heat from the attic into your living space.
• Insulation fiber or pest debris is appearing near registers. If what’s blowing out of your vents includes anything that isn’t just dust, the duct run has a breach large enough for debris to enter. This is also a sign that rodents have accessed the ductwork and may have nested inside.
• Your cooling bill keeps climbing with no change in usage. Duct leakage of 20% or more is common in aging Pomona systems, and it means nearly a quarter of the air you paid to cool is going into the attic. Repairing those leaks typically pays for itself within one or two cooling seasons.

Our Process, Step by Step

1. 1
   Camera diagnosis of the affected run. We don’t guess at what’s wrong. We send a borescope into the duct to see the separation, tear, or collapse with our own eyes, and we show you the image so the repair scope is clear from the start.
2. 2
   Written estimate before any work. You get a flat price per section or run before we cut anything open, based on what the camera showed. That price doesn’t change mid-job, and the written estimate is yours to keep whether or not you proceed.
3. 3
   Containment during the repair. If we’re opening ductwork that contains debris or old insulation, we run a Nikro HEPA negative-air machine to keep the work area under negative pressure. Dust and particles are captured at the machine rather than floating into your living room.
4. 4
   The repair itself. Depending on what we found, this could be a joint reseal with mastic and foil tape, a section replacement, or rehanging a run that has sagged. We use mechanical fasteners and HVAC-rated sealing materials, never household duct tape.
5. 5
   Post-repair airflow test. After the repair we measure airflow at the affected register and compare it to the rest of the system. You get before-and-after photos and hard numbers, not just our word that the leak is fixed.

How Much Does Air Duct Repair Cost in Pomona?

Our Service Area Near Pomona

We provide air duct repair throughout Pomona and the surrounding communities, including Phillips Ranch, Westmont, and the neighborhoods around Cal Poly Pomona. Fast dispatch from 7am to 7pm, Sunday through Friday, means most service calls are handled the same day you reach us. We also serve Rancho Cucamonga to the east, Chino and Chino Hills to the south, plus Diamond Bar, Upland, Montclair, West Covina, San Dimas, Yorba Linda, Covina, and Glendora.

Frequently Asked Questions About Air Duct Repair in Pomona

Schedule Your Air Duct Repair Service in Pomona Today

Duct leaks only get worse, and in Pomona’s heat they cost you real money every month they go unsealed. Call (833) 589-9571 for a free estimate from a company that cleans it, then fixes it, in one visit. We answer 24/7, and fast dispatch from 7am to 7pm, Sunday through Friday, gets your system back to full efficiency.

Written by Barry Walsh, Owner at Duct Cleaning Pomona, serving Pomona since 2015.