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 Oakland Homeowners
Air duct repair in Oakland addresses the leaks, disconnects, and crushed sections that quietly waste 20-30% of the air your HVAC system produces. That’s conditioned air you’re paying for that never reaches the rooms where your family sleeps, works, and cooks. Nelson Briggs leads Hallmark Air Duct Cleaning with a straightforward fix: we diagnose the failure, seal or replace the damaged section, and confirm the repair with before-and-after photos so you can see exactly what was done. Call (833) 467-6681 for a free estimate and an honest assessment of whether you need a repair, not a replacement.
Key Takeaways
- Repair vs. replacement: We only propose replacement when the duct has failed beyond a reliable patch or seal.
- Real diagnosis: We use camera inspection to locate the leak, not guesswork or a sales pitch.
- In-house repair: Most Oakland duct cleaners don’t repair. We do – cleaning and structural fixes under one contractor.
- Containment during service: Abatement Technologies negative-air equipment keeps dislodged dust from recirculating through your home.
- One flat price per system: Agreed before work starts. No bait-and-switch, no per-vent upcharge.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
HVAC Duct Installation
HVAC Duct Installation is the process of designing and fitting new ductwork when a system is being built out, an addition is being conditioned, or the existing duct layout is too far gone to repair. In Oakland homes built between the 1920s and 1980s, we regularly find duct runs that were undersized from the start, spliced together during remodels, or routed through unconditioned crawlspaces where they sweat and deteriorate. That’s why our Air Duct Repair in Oakland is often the first step before any installation. Hallmark Air Duct Cleaning handles installation as a structural service, not a side note. A straightforward single-room duct run in Oakland typically falls between $850 and $1,900 depending on access, length, and whether we’re tying into an existing trunk line or running new return air. A full system installation in a larger home can run $6,000 to $14,000, and we’ll walk you through the scope in writing before any commitment.
New Construction and Additions
When a contractor frames an addition but has no duct specialist on the crew, we step in to design the run correctly. That means calculating the CFM the room actually needs, not just fitting whatever flex duct is on the truck.
Replacing Undersized or Failed Ductwork
Some Oakland homes have original gravity-furnace duct converted decades ago for forced air, and it was never adequate. We replace those runs with correctly sized, sealed distribution so the rooms at the end of the line finally get airflow.
Air Duct Replacement
Air Duct Replacement is the removal of damaged, mold-contaminated, or collapsed duct sections and the installation of new material in their place. This is the right call when a duct has been crushed by a contractor in the attic, chewed through by rodents, or saturated by a leak that left the insulation unsalvageable. Hallmark Air Duct Cleaning performs replacement in-house, which means the same crew that identifies the failure does the repair – no subcontractor handoff. A single section of flex duct replacement in Oakland generally runs $350 to $750. Replacing a main trunk line section can cost $1,800 to $4,500, and a complete whole-home replacement typically lands between $7,000 and $15,000. We quote one flat price per system, agreed before work starts, with photos of the damaged section included in the estimate.
Contamination That Can’t Be Cleaned
When mold has penetrated the inner liner or duct board has soaked through, no amount of brushing or HEPA extraction restores it. That material needs to come out, and we do that removal under negative pressure so spores don’t spread during the job.
Crushed and Disconnected Runs
In Oakland’s older attics and crawlspaces, we routinely find ductwork flattened by service technicians, storage, or pest activity. A crushed section can reduce airflow to a bedroom by half or more, and replacement restores the system’s designed performance.
Ductwork Repair
Ductwork Repair is the targeted fix for leaks, separated joints, punctures, and sagging support failures that reduce system efficiency and pull unfiltered air into your living space. It’s the service most Oakland homes need but never get, because most cleaning-only contractors don’t offer our Air Duct Repair in Piedmont and surrounding areas either. Hallmark Air Duct Cleaning repairs with mastic and UL-listed tape, mechanical fasteners, and replacement hangers – not a quick wrap that fails in a year. A small leak repair at an accessible joint typically costs $150 to $400 in Oakland. A more involved repair across multiple connections or a sagging trunk line runs $500 to $1,500. We show you the camera footage of the leak before we fix it, and after-photos when the work is done.
Sealing Disconnected Joints
Over years of thermal cycling, the tape and mastic on duct connections dries, cracks, and separates. The result is conditioned air blowing into your attic or crawlspace. We clean the joint, apply a proper sealant, and verify with a smoke pencil that the leak is stopped.
Sagging and Separated Trunk Lines
When hangers fail, a heavy trunk line can separate at a splice and dump a third of your air into an unoccupied space. We re-support the run, realign the connection, and seal it so the system pressurizes the way it was designed to.
Duct Replacement
Duct Replacement refers to swapping out a specific section or an entire run of ductwork that has failed beyond a reasonable point of repair. The decision comes down to material condition, access, and age. Hallmark Air Duct Cleaning assesses each run individually – we won’t tell you a 10-foot section of flex duct needs replacing when a $200 repair restores it. But when the inner liner is shredded, the insulation is saturated, or the metal is rusted through, replacement is the honest call. A short flexible run in an Oakland crawlspace typically costs $300 to $700. A hard-pipe run through a finished ceiling is more involved, usually $1,200 to $3,500 due to access and finish work. We provide a written scope with material specifications and a flat price before any work begins.
Flex Duct That’s Past Its Service Life
Flex duct has a realistic service life of roughly 15-20 years in Oakland’s climate, shorter if rodents have nested in it. When the inner liner tears, the duct loses its insulation value and pulls unfiltered attic air into the system. Replacement is the only fix that restores both airflow and filtration.
Hard Pipe Corrosion and Damage
Metal ducts in older Oakland homes can develop rust, especially in damp basements and under houses. Once a section rusts through, patching creates a weak point that will fail again. We replace the compromised section and treat the surrounding connections.
Ductwork Installation
Ductwork Installation is the complete design and fitting of a new duct system, from the plenum at the air handler to the boots at each register. It’s a bigger scope than a repair or a section replacement, and it’s the right service when a home has been gutted, an HVAC system is being relocated, or the existing layout was poorly done from the beginning. Hallmark Air Duct Cleaning approaches installation with the same tool-to-task discipline we bring to Air Duct Repair in Berkeley and Oakland: we size the runs correctly, seal every connection, and balance the system so each room gets its share of air. A small home or condo installation in Oakland typically runs $5,500 to $9,000. A larger two-story home with multiple zones ranges from $10,000 to $18,000. Every installation quote includes a line-by-line material and labor breakdown.
Full Home Retrofit Installation
When the old ductwork is undersized, leaking in a dozen places, and contaminated beyond cleaning, a full retrofit makes more sense than a series of patchwork repairs. We design the new layout to the home’s actual room-by-room load, which means better comfort and lower heating and cooling bills.
System Relocation Projects
Moving a furnace or heat pump means reworking the supply and return ductwork, and that’s work many Oakland HVAC contractors subcontract out. We do the design and the installation ourselves, which keeps the schedule in our control and the workmanship consistent.
Brands We Service
We work with Honeywell air quality products regularly, and that means we understand how their filtration and ventilation systems interact with the ductwork they’re connected to. When we repair a duct run, we check that the Honeywell filter cabinet, bypass damper, or ventilation control is still functioning with the airflow it needs – a repair that looks good but strangles a premium filter system isn’t a good repair.
Aprilaire whole-home dehumidifiers and air cleaners depend on properly sealed, properly sized duct connections to do their job. We’re familiar with their installation requirements and their service needs, and we make sure any duct repair or replacement we perform supports the equipment upstream. Whether your system uses Honeywell, Aprilaire, or any other make, the ductwork is the delivery system – and we make sure it delivers.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Rooms that never reach temperature. If one bedroom is always 8 degrees off from the rest of the house no matter where you set the thermostat, a disconnected or crushed duct run is the most common culprit. The air is being produced – it’s just not arriving.
- Visible dust streaks around registers. Dark gray or black streaks on the ceiling or wall around a supply register indicate air escaping around a poor connection and pulling attic dust with it. That’s a leak at the boot, and it only gets worse.
- Higher energy bills with no change in usage. A 20% leak rate across your duct system means 20% of your heating and cooling budget is conditioning the attic. Oakland utility costs keep climbing, and a sealed system is the fastest payback in home efficiency.
- Whistling or rattling from the ducts. Whistling means a small gap under pressure. Rattling means loose hangers, separated joints, or debris in the run. Both are calls for a camera inspection before they become complete failures.
- Musty smell that comes and goes. If the smell appears when the blower kicks on and disappears when it shuts off, you’re smelling what’s in the ducts – not what’s in the room. In Oakland’s damp marine air, a small leak in a crawlspace duct pulls in exactly that musty air year-round.
Our Process, Step by Step
- 1
Inspection and camera diagnosis. We start by locating the problem, not guessing at it. A camera goes into the duct run to document the leak, separation, crush, or contamination. You see the footage. We explain what it means.
- 2
Flat-price repair or replacement proposal. Based on what the camera showed, we write a scope of work with a single flat price. No hourly billing that balloons, no per-vent add-ons. The price you approve is the price you pay.
- 3
Containment setup. Before we open up any ducting, Abatement Technologies negative-air equipment is staged to capture dislodged dust and debris at the source. We contain what we dislodge – it doesn’t get a chance to settle on your furniture.
- 4
Repair or replacement work. The damaged section is sealed, re-supported, or removed and replaced depending on the diagnosis. Every connection is mechanically fastened and sealed with mastic or UL-listed tape, not a quick wrap.
- 5
Verification and after-photos. We re-run the camera after the work is done and document the finished repair. You get before-and-after photos of your own ducts, and we test the airflow at the register to confirm the system is performing.
How Much Does Air Duct Repair Cost in Oakland?
Air Duct Repair in Alameda and Oakland typically costs between $150 and $1,500 depending on what’s broken and how hard it is to reach. A straightforward accessible joint seal runs $150 to $400. A multi-point repair with sagging support correction lands in the $500 to $1,500 range. A full section replacement climbs from there, and whole-home duct replacement in Oakland runs $7,000 to $15,000 on average.
The biggest variable is access. Oakland homes with wide, open attics are faster and less expensive to work in than older bungalows with tight crawlspaces and low clearances. Material type matters too – flex duct is less expensive to replace than hard pipe, but hard pipe lasts longer and performs better when installed correctly. To avoid overpaying, get a camera-based diagnosis, not a verbal estimate. A contractor who can’t show you the leak is guessing. Our free estimates include the camera inspection, a written scope, and a flat price. Call (833) 467-6681 and we’ll schedule a time that works for you.
Our Service Area Near Oakland
Hallmark Air Duct Cleaning serves Oakland and the surrounding East Bay, including Alameda, Piedmont, San Leandro, Castro Valley, Richmond, and down through Walnut Creek and the Peninsula cities of Daly City and South San Francisco. We also regularly work in Berkeley and Hayward, where the housing stock is similar and the access challenges are the same. If you’re in Oakland’s Chinatown neighborhood or elsewhere in the city, the crew you speak with is the crew that shows up. Visit our home page for the full service overview, and if you need a specialist closer to the Bay, check Air Duct Repair in Oakland for more local detail.
Serving Oakland, CA – Our Local Coverage Area
We’re based in the Oakland 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 Oakland
Air duct repair is the process of fixing leaks, disconnections, crushed sections, and failing supports in the ductwork that carries heated and cooled air through your home. Unlike cleaning, which removes accumulated dust, repair restores the structural integrity of the system so the air actually reaches your rooms. A repair can involve sealing joints, re-hanging sagging trunk lines, or replacing damaged sections. Call (833) 467-6681 for a camera-based diagnosis and a flat-price quote.
Most air duct repairs in Oakland are completed in a single visit lasting 2 to 5 hours. The exact time depends on access, the number of sections being worked on, and whether we’re sealing, re-supporting, or replacing material. A full duct replacement can take 2 to 3 days. We’ll give you a clear time window before we start, and we don’t leave a job until the after-photos and airflow verification are done.
Air duct repair in Oakland typically costs $150 to $1,500 for a targeted fix, with most homeowners landing between $300 and $800. Section replacements run $350 to $4,500 depending on material and location. Whole-home replacement runs $7,000 to $15,000. Every project gets a flat price agreed before work starts, so you’re not watching the clock or the invoice grow. Call (833) 467-6681 for a free estimate.
Yes, we understand how Honeywell filtration and ventilation products and Aprilaire dehumidifiers and air cleaners integrate with the ductwork they’re attached to. A duct repair that doesn’t account for the equipment upstream can reduce the performance of those systems. We look at the whole path, not just the broken section.
Most duct repairs are important but not urgent in the same way a gas leak is. However, a completely disconnected duct run in extreme weather or a pest-damaged section pulling contamination into the home warrants prompt attention. We schedule repairs as quickly as possible while giving every job the time it needs to be done correctly. Call (833) 467-6681 and we’ll assess your situation honestly.
You shouldn’t have to trust anyone’s word on that. We show you camera footage of the problem before we start and after-photos of the repaired section when we’re finished. The before-and-after documentation is yours to keep, and it shows exactly what was opened, what was sealed, and what it looks like now.
Clear a path to the attic hatch or crawlspace access, and move any items stored directly in front of your return registers. The work itself is contained, but access is the one thing that speeds up every job. If you have pets, it helps to keep them in a separate room while our crew is on site. We handle everything else, from floor protection to final cleanup.
Schedule Your Air Duct Repair Service in Oakland Today
If you’ve got rooms that won’t heat or cool, dust streaks at the registers, or an energy bill that keeps climbing, the problem is probably in the ducts – and we can show you exactly what it is. Call Hallmark Air Duct Cleaning at (833) 467-6681 for a free, no-obligation estimate with camera diagnosis. You’ll get a flat price and a straight answer.
Written by Nelson Briggs, Owner at Hallmark Air Duct Cleaning, serving Oakland since day one.