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.
Trusted Air Duct Repair for San Pedro Homeowners
When a duct seam splits open in a San Pedro crawlspace or a return plenum loses its seal, you’re not paying to cool the harbor breeze. You’re paying to condition air that never reaches your living room. Air duct repair in San Pedro is the difference between an HVAC system that actually delivers and one that just burns electricity. Ross Callender runs our repair crews with the same professional-grade equipment restoration contractors use: Rotobrush contact-vacuum systems, Nikro extraction machines, and Abatement Technologies negative-air filtration. When we open a duct, the debris gets captured, not redistributed into your home. Call (877) 573-0759 for a free estimate.
Key Takeaways
- Air duct repair in San Pedro addresses separated joints, crushed runs, and deteriorated flex duct that leak conditioned air into attics and crawlspaces.
- Most repairs involve sealing, reconnecting, or replacing damaged sections rather than full-system replacement.
- We work on Honeywell and Aprilaire filtration equipment, which means we understand how duct work connects to whole-home air quality systems.
- Problems found during a cleaning can often be repaired in the same visit.
- Debris containment is part of the job. Abatement Technologies HEPA equipment keeps dislodged particulates out of your living spaces.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
HVAC Duct Installation
HVAC Duct Installation in San Pedro means running new, properly sized duct work from your air handler to supply and return registers. You need it when original ducts were never installed correctly, when a remodel changes room layouts, or when airflow has been so poor for so long that patching individual leaks won’t fix the root problem. Air Duct Cleaning San Pedro installs rigid sheet-metal ducting, insulated flex duct, and properly sealed plenums in homes throughout the South Bay, from Wilmington to Harbor Gateway South. Whole-home duct installation typically runs $3,500 – $8,000 in San Pedro depending on square footage, number of runs, and access difficulty. Call (877) 573-0759 for a per-system flat price before any work begins.
New Construction and Additions
Building an ADU in West Carson or adding a second story in Lomita? Duct work needs to be planned before drywall goes up. We coordinate with your general contractor and install runs that match the load calculation, not whatever fits conveniently.
Undersized or oversized ducting is a common mistake in additions. Our crews measure static pressure and air velocity after installation to confirm the system moves the right CFM per room.
Replacing Undersized Ducting
Some San Pedro homes built in the 1960s and 70s still have duct work sized for smaller air conditioners. When a newer, higher-tonnage system gets connected to old ducts, airflow restriction causes short cycling and premature compressor failure.
We map existing runs, identify restrictions, and replace the sections that are choking your system. This is a targeted fix, not a full-system replacement.
Air Duct Replacement
Air Duct Replacement is what you need when existing ducts are physically too far gone to repair safely or effectively. Crushed flex duct, corroded metal runs, water-damaged insulation, or rodent contamination in San Pedro attics all point to replacement rather than patch work. Air Duct Cleaning San Pedro removes the old material, installs new ducting, and seals every joint with mastic, not flimsy tape. The cost depends heavily on what’s being replaced: a single damaged flex run might run $300 – $600, while a full home replacement in San Pedro typically falls between $3,000 and $7,500. We quote one flat price per system before work starts. Call (877) 573-0759 to get yours.
Damaged Flex Duct
Flex duct is common in San Pedro homes, especially in tight attic spaces. It fails when it gets kinked, torn by rodents, or simply deteriorates after 15 – 20 years of exposure to attic heat.
We replace damaged flex with properly supported runs, ensuring the inner liner isn’t compressed at bends. A sagging duct loses up to 30% of its airflow.
Water-Damaged Insulation
San Pedro’s marine layer brings consistent moisture. When a roof leak or condensation saturates duct insulation, the material breaks down and can harbor mold growth.
We remove saturated insulation, inspect the ducting underneath, and replace the affected sections. Before-and-after photos document what was actually done.
Ductwork Repair
Ductwork Repair is the targeted fix for leaks, separations, and damage that doesn’t require replacing entire runs. Our crews in San Pedro constantly find separated duct joints in attics, crushed returns under houses, and disconnected branch lines that send conditioned air into dead spaces. Air Duct Cleaning San Pedro repairs these issues with proper mechanical connections, mastic sealant, and where needed, Guardsman-brand sealing products for long-term integrity. Simple repairs often run $200 – $500 per affected area, while multiple separations or accessible runs that need re-securing might push costs to $800 – $1,500. Every repair gets photographed before and after. Call (877) 573-0759 for an exact quote.
Separated Duct Joints
Metal duct sections come apart over time as the house settles and temperature swings expand and contract the material. When a joint separates, conditioned air dumps into your attic or crawlspace instead of your living room.
We reconnect sections with sheet-metal screws and seal with mastic. Duct tape fails within a couple of years; mastic stays flexible and sealed for decades.
Crushed Returns
Return ducts in crawlspaces get flattened by workers, animals, or stored belongings. When your return is restricted, the system pulls harder to move less air, increasing energy use and shortening equipment life.
We replace crushed sections and add proper support so it doesn’t happen again. A return duct that can’t breathe is a problem your compressor feels, even if you don’t.
Duct Replacement
Duct Replacement is the full or partial removal and reinstallation of your home’s air distribution system. In San Pedro, you might need it when your ducts are original to a 1970s house, when they’ve been contaminated by vermin or moisture, or when you’ve had multiple repair calls that amount to chasing the same old problems. Air Duct Cleaning San Pedro handles replacement from start to finish: removal, disposal of old material, installation of new ducting sized to your system, and sealing at every connection. Costs in San Pedro generally run $3,000 – $7,500 for a full home replacement, while partial replacements of 3 – 5 runs might fall between $800 and $2,500. We use the same Rotobrush and Nikro equipment to clean the system before we close it up. Call (877) 573-0759 for a flat-price, per-system quote.
Contaminated Ducting
Rats and mice in San Pedro attics leave behind droppings, urine, and nesting material inside duct work. Cleaning can remove some of it, but porous materials that have absorbed contamination often need removal.
We replace contaminated sections rather than trying to clean what can’t be cleaned. It’s the difference between masking a problem and removing it.
Beyond-Repair Systems
When you’ve patched the same run three times and it keeps failing, replacement makes more financial sense than another repair. Old metal ducts with rust-through, collapsed flex, and failing insulation can’t be effectively repaired.
We’ll tell you honestly when repair money would be wasted. A straight answer is more valuable than another invoice.
Ductwork Installation
Ductwork Installation is the complete installation of air distribution systems, whether for a brand-new build, a major remodel, or a home that never had central HVAC. San Pedro’s housing stock spans everything from 1920s bungalows in the downtown area to 1990s tract homes near Western Avenue, and many older homes need duct work built from scratch when central air is added for the first time. Air Duct Cleaning San Pedro installs complete duct systems with properly sized trunks, branched supplies, and returns that balance airflow. Full ductwork installation in San Pedro typically runs $4,000 – $9,000 for an average three-bedroom home. We provide load calculations so you know why each duct is the size it is. Call (877) 573-0759 for a free estimate and honest pricing.
Whole-Home Retrofit
Adding central air to a San Pedro home that’s only had window units or wall heaters requires a complete duct system. We design the layout around your home’s actual architecture, not a generic template.
Attic, crawlspace, or basement routes each have different requirements. We’ll explain what’s possible and what isn’t before any work starts.
Trunk Line Design
A trunk line that’s too small starves every branch line connected to it. We size trunk ducting based on your system’s CFM output and the static pressure it can overcome.
Proper trunk line design is why some systems feel balanced in every room instead of blasting the bedroom nearest the unit while the far bathroom never gets air.
Brands We Service
Our crews work around Honeywell and Aprilaire whole-home air quality equipment regularly. That’s important because duct work doesn’t exist in isolation. A Honeywell media air cleaner or an Aprilaire humidifier sits in the airstream, and poor duct connections upstream or downstream reduce what that equipment can do. We understand how filtration systems depend on proper airflow to function, and we install and repair ducts with that context in mind.
We also run Rotobrush contact-vacuum brush systems and Nikro duct cleaning machines, the same tooling used by restoration and remediation contractors. When we finish a repair, the ducting is actually clean, not just reconnected. Whether you have Honeywell, Aprilaire, or any other air-quality equipment, we can service the duct system around it.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Rooms that never reach the thermostat temperature. If one bedroom in your San Pedro home is always 5 degrees hotter than the rest, there’s likely a separated or crushed duct on that branch line. The system keeps running because the thermostat never gets satisfied, and you’re paying for comfort you’re not receiving.
- Dust returning to surfaces within days of cleaning. Ducts with open joints pull unfiltered attic or crawlspace air into the living space. That dust is settling on your furniture from vents, not from open windows, and no amount of surface dusting fixes the source.
- Visible condensation or water staining around register grilles. Moisture at a register often means a disconnected duct in a humid space. In San Pedro’s coastal climate, that moisture breeds mold inside the duct insulation and on the gypsum around the register.
- Whistling or banging sounds when the blower starts. Air leaking through small gaps produces a whistle, while sheet metal that’s come loose bangs as pressure changes. Both are mechanical symptoms that get worse, and both point to specific, findable failures.
- Your cooling bill climbs while comfort drops. When your system runs longer to hit the same temperature, the first suspect is duct leakage. The Department of Energy estimates typical homes lose 20 – 30% of conditioned air through duct issues, and San Pedro homes with attic and crawlspace ducting are no exception.
Our Process, Step by Step
- 1
System inspection. We start by opening the duct system and actually looking. Cameras, pressure readings, and hands-on inspection of accessible runs tell us what’s leaking, what’s crushed, and what’s beyond saving. You’ll see photos of what we find.
- 2
Flat-price quote. After inspection, you get one price for the entire repair scope before any work starts. No hourly surprises, no add-ons discovered mid-job, and no per-vent pricing games.
- 3
Containment setup. Before cutting or disconnecting any duct, we run Abatement Technologies negative-air filtration where needed. Dislodged dust and debris get captured and filtered, not blown into your living room.
- 4
Repair or replacement. The work itself uses mechanical fasteners, mastic sealant, and properly sized replacement material. Every connection gets checked. If we find a problem beyond the original scope, we show you before we touch it and get approval before proceeding.
- 5
Verification and photos. After the repair, we test airflow at registers and document the completed work with before-and-after photos. You’ll see exactly what was done and why it matters.
How Much Does Air Duct Repair Cost in San Pedro?
Air duct repair in San Pedro typically costs between $200 and $1,500 depending on what’s wrong. A single reconnected joint or sealed leak might run $200 – $500. Repairing multiple separations, re-supporting sagging runs, and replacing a short section of crushed flex duct could push the total to $800 – $1,500. Full or partial Air Duct Repair in San Pedro jobs that involve replacing multiple runs run $2,500 – $7,500. These are whole-system flat prices, not per-vent estimates that balloon once the work begins.
Several factors move the final number. Access is the biggest one: a crawlspace with 24 inches of clearance costs less to work in than one with 16, and an attic with a standing floor is cheaper than one that requires running boards. The age and type of your existing ducting matters too. Older rigid metal can often be resealed, while deteriorated flex usually needs replacement. What’s included in your free estimate? A full inspection, detailed explanation of what we found, photos of the damage, and a flat per-system price. If you’re comparing bids, ask each company what equipment they’re running. A shop-vac operation can’t verify the work was done right, because they can’t actually see inside the system. Call (877) 573-0759 for a free estimate with no obligation and no surprise invoices.
Our Service Area Near San Pedro
We work throughout San Pedro and the surrounding South Bay communities. That includes Air Duct Repair in Wilmington, Air Duct Repair in Harbor City, Harbor Gateway South, Lomita, West Carson, Lawndale, and as far north as Watts, West Rancho Dominguez, and Willowbrook. We also serve Hermosa Beach and the beach communities. If you’re near the 110 freeway corridor or anywhere on the Palos Verdes side of San Pedro, call and ask. We’ll tell you honestly whether we can reach your home.
Serving San Pedro, CA – Our Local Coverage Area
We’re based in the San Pedro area and know this community well. Use the map below to see our service coverage – if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Air Duct Repair in San Pedro
Air duct repair is the process of fixing leaks, separations, crushed sections, and damage in the duct work that distributes heated or cooled air from your HVAC system to your rooms. In San Pedro homes, common repairs include reconnecting separated joints, replacing crushed flex runs, and resealing plenums so conditioned air reaches registers instead of leaking into attics and crawlspaces.
Most targeted duct repairs in San Pedro take 2 to 4 hours, including inspection, containment setup, the repair itself, and verification. Multiple runs or partial replacement work can take a full day. We’ll give you an honest time estimate when we know the scope.
Air duct repair in San Pedro generally runs $200 – $1,500 for targeted fixes and $2,500 – $7,500 for replacement work, depending on access, duct type, and extent of damage. We quote one flat price per system before any work starts, so there aren’t surprises when the invoice arrives. Call (877) 573-0759 for a free estimate.
Yes. We work around Honeywell media air cleaners and Aprilaire humidifiers and air purifiers regularly. Understanding how filtration and humidity equipment integrates with duct work means we can repair the duct system without compromising the function of your air quality equipment.
If a duct has collapsed and your system can’t run, or if water is leaking through a register, call (877) 573-0759 and describe the situation. We prioritize urgent cases in San Pedro when possible. A fully disconnected return or a flooded duct isn’t something to let sit.
Yes. Our repairs are backed by a workmanship warranty, and we’ll explain the coverage clearly before you sign anything. We want you to know what’s covered, what’s not, and what you can expect if something goes wrong on our end.
Clear access to your attic hatch, crawlspace entrance, and the air handler closet if you have one. Move any stored items near vents or registers. We bring our own lighting, cameras, and equipment, so you don’t need to provide anything else.
Schedule Your Air Duct Repair Service in San Pedro Today
Leaky ducts don’t fix themselves, and every month you wait is another month of paying to condition air that never reaches your rooms. Call (877) 573-0759 for a free, no-obligation estimate. We’ll inspect the system, show you what’s wrong, and give you a flat per-system price before any work starts. This is professional-grade equipment and straightforward pricing, not a shop vac and a guess.
Written by Ross Callender, Owner at Air Duct Cleaning San Pedro, serving San Pedro and the South Bay with professional-grade duct cleaning and repair equipment.
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