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.
Fast, Reliable Air Duct Repair Across Piedmont
Air duct repair in Piedmont typically runs between $350 and $1,400 depending on the scope. A single crushed run might be a few hundred dollars. Rusted-out trunk lines or full duct replacement in a 1920s Mediterranean runs more. Most repairs are completed in one visit. If you’ve noticed weak airflow, a musty smell from the vents, or rooms that never warm up properly, the ductwork itself is often the culprit. Our crews know Piedmont’s older homes well, and we never pad the bill with work you don’t need. Call (951) 527-6259 and we’ll give you a straight answer.
Why Linden Air Duct San Francisco Is Piedmont’s Preferred Air Duct Repair Company
Piedmont homeowners tend to be protective of their houses, and for good reason. Many of these homes were built before 1960, with original duct runs that predate modern HVAC standards. We’ve repaired enough of them to know what we’re walking into before we arrive. Marcus Veale, who leads our team, trains every technician on the specific failure patterns we see in Piedmont’s older construction: rust at low points from fog-season condensation, disconnected runs in tight crawlspaces, and asbestos-wrapped seams that need careful handling.
Every job starts with a written price before any work begins. That’s not a promotion. It’s how we’ve operated since 2004 as part of the Threshold Group family. The technician’s name and photo are sent to you before the visit, and they show a photo ID badge at the door. If the repair fails within 365 days, we come back at no charge. That’s the 365-Day Done Right Promise, in writing on every repair.
Our Piedmont customers also value that a live person answers the phone 24/7. No voicemail loops when you have a vent blowing dust into a nursery. No callback queue when a musty smell gets worse after rain. You call, a human picks up, and we schedule around your day.
Styles & brands we work with
HVAC Duct Installation in Piedmont
HVAC duct installation in Piedmont is a different job than what most Bay Area companies are used to. These aren’t suburban tract houses with open attic trusses and predictable framing. They’re Craftsman and Mediterranean homes from 1910 to 1960, often with finished basements, narrow crawlspaces, and original metal collars that don’t match modern flex duct. In Piedmont, HVAC duct installation typically runs $2,800 to $6,500 for a partial system and $7,000 to $14,000 for a full-home installation, depending on access and how much of the original framing has to be worked around.
We install 26-gauge round metal wherever the home’s structure allows. It holds up better than flex in damp basements and resists rodent damage, which matters in Piedmont’s older neighborhoods where crawlspace intrusion is common.
Retrofits for Older Homes
When a Piedmont home gets a modern furnace or heat pump, the installer often has to force new equipment onto ductwork that was never designed for it. We see this constantly. The fix is usually a hybrid approach: keep the solid original runs, replace the sections that are crushed or rusted, and seal every joint properly.
New Runs for Room Additions
Piedmont homeowners add bedrooms and offices more often than you’d think, given the value of square footage here. We run new supply and return lines to those additions, sized to the existing air handler, so the rest of the house doesn’t lose airflow.
Air Duct Replacement in Piedmont
Air duct replacement in Piedmont becomes necessary when the original galvanized steel has rusted through in too many places to patch, or when a previous contractor left flex duct crushed and disconnected throughout the crawlspace. Full air duct replacement in Piedmont typically costs $6,000 to $12,000 for a single-story home and $9,000 to $18,000 for a two-story home with difficult access. It’s a bigger job than repair, but sometimes it’s the honest answer.
We don’t sell replacement when a repair will hold. But when we do replace, we remove the old material, install new sealed ductwork, and run a camera inspection to confirm airflow to every register before we pack up.
Rusted Galvanized Trunk Lines
On pre-1960 Piedmont homes, the main trunk line running through the basement is often the first thing to fail. Decades of fog-season humidity condensing on cold metal creates rust through at the low points. Those leaks send conditioned air into the basement instead of your living room.
Crushed and Disconnected Runs
We frequently find flex duct that was pinched during a remodel or simply pulled apart at the collar. On Crocker Avenue we opened a 1924 Mediterranean’s original galvanized supply run and found a 6-foot section crushed where a basement remodel had pinched it against a beam, plus rust-through at the floor register. Our techs removed the collapsed duct, spliced in new 26-gauge round metal, sealed every joint with mastic, and ran a camera inspection to confirm full airflow restoration back to the air handler.
Trusted Brands We Service in Piedmont
We work with the equipment already in your Piedmont home and stock parts for the systems we see most often. Our repair teams carry Rotobrush and Nikro diagnostic and cleaning tools, and when air-quality improvements are part of the job we use products from Abatement Technologies and Guardsman. Because we keep common fittings, collars, and sealants on the truck, most repairs in Piedmont don’t wait on a parts order. If your system needs a specific component we don’t carry, our Bay Area supply network usually has it in hand within a day.
Common Air Duct Repair Problems We See in Piedmont Homes
- Rust-through at low points. Original galvanized ducts in Piedmont’s pre-1960 homes collect condensation during damp winters and foggy summers. The rust eventually eats through, creating air leaks into unheated basements that increase your utility bill and starve upstairs rooms of airflow.
- Crushed or disconnected runs in tight crawlspaces. When a modern furnace gets retrofitted into a 1920s Craftsman, contractors who aren’t used to historic homes often force flex duct into original metal collars. The connections pull apart, or the flex gets pinched between beams, and entire rooms lose airflow.
- Asbestos tape on original seams. Many Piedmont homes built before the 1980s have asbestos tape sealing their duct joints. Disturbing it during a repair releases fibers into the home. We use containment protocols on every job where this material is present, which most general handymen skip entirely.
- Musty odors from fog-season mold. Piedmont’s mild Mediterranean climate means cool, damp air for much of the year. In ducts with poor insulation or old seals, that moisture supports mold and mildew growth, especially in homes where the ductwork passes through unheated spaces.
See the difference
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After
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AfterPricing for Air Duct Repair in Piedmont, CA
Here’s what you should expect to pay for air duct repair in Piedmont. A single crushed run or small rust patch runs $350 to $600. Replacing a section of trunk line or multiple damaged runs costs $800 to $1,800. A full repair of an entire branch system with sealing runs $1,500 to $3,200. Full duct replacement in a Piedmont home starts around $6,000. These ranges reflect the access challenges common in older Piedmont construction: finished basements, narrow crawlspaces, and original framing that has to be worked around carefully.
Every estimate is free, and the price we quote is the price you pay. One flat price per system, agreed before work starts. No per-vent pricing, no surprise invoices when the job is done. Call (951) 527-6259 for an exact quote.
Key Takeaways
- Air duct repair in Piedmont costs $350 to $1,400 for typical repairs; full replacement runs higher.
- Piedmont’s pre-1960 homes have specific failure patterns: rust, crushed runs, and asbestos tape.
- Every repair includes a written guarantee and a free second visit if it fails within 365 days.
- You’ll know your technician’s name and see their photo before they arrive.
- Written price before any work begins, every time.
We Also Serve Cities Near Piedmont
While this page focuses on Piedmont, our Air Duct Repair crews also serve homeowners in Oakland, Alameda, Berkeley, and San Leandro. If you’re in one of those cities, the same written pricing and 365-Day Done Right Promise apply. For Piedmont-specific service, our Air Duct Repair in Piedmont team is ready to help.
Serving Piedmont, CA - Our Local Coverage Area
We’re based in the Piedmont 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 Air Duct Repair in Piedmont
Not necessarily, but if those original ducts have been disconnected, crushed, or rusted through, your heating system is wasting a significant amount of conditioned air. Gravity furnace ducts were never designed for the static pressure of a modern blower, and the uninsulated runs through unheated basements are prone to condensation rust. We’ll inspect, tell you honestly what’s failing, and repair only what needs it. Call (951) 527-6259 to schedule an inspection.
We follow containment protocols that keep asbestos fibers from entering your living space. The tape stays in place unless it’s actively failing. When a repair requires disturbing it, we isolate the work area, use proper containment methods, and remove only the material necessary for the repair. This is one reason you want a specialist, not a general handyman. Call (951) 527-6259 if you suspect asbestos on your ductwork.
Yes, and this is one of the most common repairs we do in Piedmont’s mid-century ranch homes. A single crushed or disconnected run in the crawlspace can be spliced, reconnected, and sealed without touching the rest of the system. Typical cost is $350 to $600. We’ll show you before-and-after camera footage so you can see the repair yourself. Call (951) 527-6259 for a free estimate.
In most Piedmont homes, that musty smell comes from mold or mildew growing on dust and debris inside ducts that pass through damp, unheated spaces. Piedmont’s cool, foggy summers and damp winters create the exact conditions that support microbial growth in poorly sealed ductwork. The fix is usually a combination of sealing the leaks that let moisture in and cleaning or replacing the affected duct sections. Call (951) 527-6259 and we’ll track down the source.
Yes. We understand that many Piedmont homes fall under historic preservation guidelines, and we work carefully around original finishes, plaster walls, and architectural details. Our repairs focus on the ductwork itself, not the surrounding structure. We can often access damaged runs through existing crawlspace or basement openings without cutting into walls or ceilings. Call (951) 527-6259 to discuss your home’s specific constraints.
Schedule Your Air Duct Repair in Piedmont
If you’ve been living with weak airflow, musty smells, or rooms that never heat properly, the ductwork is often where the answer lies. Our team knows Piedmont’s older homes, and we’ll tell you honestly what’s wrong and what it costs to fix. Written price before any work begins. A technician whose name and photo you’ll know before they arrive. A guarantee in writing that covers the repair for 365 days. Call (951) 527-6259 for a free estimate and let’s get your ducts working right.
Written by Marcus Veale, Owner at Linden Air Duct San Francisco, serving Piedmont since 2004.