Leaks & gaps
Leaky joints and seams let conditioned air escape into the attic or walls — one of the biggest hidden sources of wasted energy.
Bay Area Air Duct Repair & Replacement · Licensed · 13+ Years
Air Duct Repair & Replacement in the San Francisco Bay Area
Leaky, damaged, or disconnected ducts waste energy and dump dust into your home. We inspect first, repair whenever we can, and replace only the runs that truly need it — no pressure to over-buy.
Free estimateLicensed (CSLB #1022608)Inspection-first13+ years experience
Free on-site estimate · No pressure · We come to you
Repair or Replace?
We Inspect First —
Then Recommend the Honest Fix
Not every duct problem needs a full replacement. Leaks, loose joints, crushed sections, and disconnected runs can often be sealed or repaired at a fraction of the disruption — and that's usually the right call. Replacement makes sense when ducts are too damaged, corroded, undersized, or old to perform, or when repairs would just be patching a system on its way out.
The only way to know which you need is to look. We inspect your ductwork, check for leaks and airflow loss, and give you a straight recommendation — repair when we can, replace only when it's genuinely warranted. If the ducts are just dirty rather than damaged, we'll tell you that too and point you to air duct cleaning instead.
- Repair-first — we don't over-sell replacement
- Leaks sealed, airflow restored
- Less dust and debris pushed into your home
- A more efficient, better-balanced system
- Even temperatures room to room
- A clear, honest recommendation up front
What We Fix
Duct Problems
We Repair & Replace
From a single leaky joint to a failing run, here's what we most often diagnose and fix in Bay Area ductwork.
Disconnected sections
A duct that's come loose or fully disconnected dumps your heated or cooled air where you can't use it, and pulls dust in.
Crushed or kinked runs
Flattened, kinked, or sagging flex duct chokes airflow, so some rooms never get comfortable no matter the thermostat.
Poor connections
Badly joined or unsealed connections leak and rattle — we reconnect and seal them properly for tight, quiet airflow.
Damaged duct insulation
Torn or missing duct wrap causes condensation and energy loss; we repair or replace the insulation around the ducts.
Old or failing ductwork
Corroded, brittle, or badly undersized ducts are often past repair — that's when a targeted replacement is the right move.
Do You Need It?
Signs Your Ducts Need
Repair or Replacement
Duct trouble usually shows up on your comfort and your bills before you ever see the damage. Watch for these.
Uneven room temperatures
Rooms that are always too hot or too cold often mean ducts are leaking, crushed, or disconnected before the air gets there.
Rising energy bills
Leaky ducts can waste a big share of your heating and cooling — climbing bills with no other cause point at the ductwork.
Weak airflow from vents
Little air coming from some registers usually means a blockage, a crushed run, or a disconnected duct upstream.
Whistling or rattling
Whistling (air escaping a leak) or rattling (loose sections and connections) are audible signs of ducts in need of repair.
Dust that won't quit
Excess dust that returns fast after cleaning can mean ducts are pulling in attic or wall debris through gaps and breaks.
Old, aging ductwork
Ducts that are decades old, corroded, or never inspected are worth a look — they may be leaking or ready for replacement.
How We Work
Our Air Duct Repair & Replacement Process
The recommendation comes from the inspection, not a sales script. Here's how we handle every job.
Free inspection
We inspect the ductwork end to end, looking for leaks, disconnected or crushed runs, damaged insulation, and airflow loss.
Repair-vs-replace recommendation
We show you what we found and give a straight recommendation — repair what's fixable, replace only what genuinely needs it.
Repair or replace
We seal leaks, reconnect and secure loose sections, fix or replace damaged runs, and restore proper connections and insulation.
Seal & test
We seal the system properly and confirm airflow is restored and balanced, with no leaks left behind.
Cleanup & walkthrough
We clean up, walk you through the work, and flag anything else worth knowing about your system.
Free inspectionLicensed (CSLB #1022608)Repair-first, no over-selling
Why Attic Pros
The Bay Area's Straight-
Talking Duct Team
For over 13 years, Bay Area homeowners and businesses have trusted us with their ductwork — because we lead with an inspection and an honest recommendation, not a push to replace everything.
- Licensed contractor (CSLB Lic. #1022608)
- Diamond Certified & Angi Super Service Award winner
- Independently reviewed — verified Google ratings
- Inspection-first — repair when we can, replace only when needed
- Free, no-obligation on-site estimate
- Local team with 13+ years in Bay Area homes
Real Customers, Real Results
Trusted by Bay Area Homeowners
4.8
★★★★★
Based on 1,900+ verified Google reviews — trusted for ductwork & home services across the Bay Area
Google Review
★★★★★
Shah turned my experience around from a bad one to a good one in the very beginning. Aleksandra at the office answered and addressed all my questions and concerns very thoroughly. Jose who did the rodent proofing, answered all my questions and took his time going through the crawlspace and making sure he found and covered all potential access points for rodents into the crawlspace. He was very patient and thorough.
A Clements
Google Review
★★★★★
Just had a great inspection from Tom. Very informative and helpful!
Grace Ghiselli
Google Review
★★★★★
Dennis is extremely professional, communicated all that was happening, explained where the critters were invading and did a very thorough job sealing the house, along with his helper. Thank you!
Dede Wynne
Google Review
★★★★★
Denis, German,& Alexander were great. Very professional, thorough and customer oriented. I would recommend them for any attic, crawl space, HVAC, insulation, rodent & sub pump work. They were nice, hard working & non intrusive.
Frank Moro
Google Review
★★★★★
Tom was professional, knowledgeable and efficient. I got the quote fast and I look forward to Attic Pros doing the work.
Julie Thompson
Google Review
★★★★★
We had Samim come out to our house. He was so kind, fair, and professional, and put me at ease following an exorbitant price gouging experience. I highly recommend Attic Pros and if you can, ask for Samim. You will be happy with the quality of their work as well.
Jean Strothers
QUESTIONS, ANSWERED
Frequently Asked Questions
Straight answers to the questions people actually ask about duct repair, replacement, and which one they really need. Still unsure? Our team is happy to help.
Still have questions?
Talk to our team — we're here to help.
(800) 543-0382It depends on the condition. Leaks, loose joints, crushed sections, and disconnected runs can usually be repaired. Replacement makes sense when ducts are too corroded, damaged, undersized, or old to perform. The only way to know is an inspection — and we recommend the smaller fix whenever it will actually solve the problem.
No. Our approach is inspection-first and repair-first — we show you what we found and recommend the honest fix. If a repair will do, that's what we'll suggest; full replacement is only for ducts that genuinely can't be repaired to perform.
Common signs are uneven room temperatures, rising energy bills with no other cause, weak airflow from some vents, whistling sounds, and dust that returns quickly after cleaning. Leaks are often hidden in the attic or walls, which is why an inspection is the reliable way to find them.
It can, sometimes significantly. Leaky and disconnected ducts waste a large share of the air your system pays to heat and cool. Sealing leaks and restoring proper airflow helps your HVAC deliver conditioned air where it's supposed to go instead of into your attic or walls.
Many duct systems last a couple of decades, but lifespan depends on the material, installation, moisture, and whether pests or damage have gotten to them. Age alone isn't a reason to replace — condition is. We assess that during the inspection.
Yes. If your ducts are dirty rather than damaged, we offer air duct cleaning, and if we find both issues we can coordinate the cleaning and any repairs together so it's handled in one place.
A targeted repair is often done in a single visit, while a larger replacement can take longer depending on how much ductwork is involved and access to it. We'll give you a clear timeline with your estimate after the inspection.
Yes. Properly sealing joints and connections is central to the job — an unsealed repair just leaks again. We seal the system and verify that airflow is restored and balanced before we're done.
LOCALLY OWNED AND OPERATED
Serving the Greater Bay Area & Sacramento Area
Air Duct Repair Across the Bay Area
Local Air Duct Repair & Replacement Areas
Ready when you are
Get Your Free Duct Inspection & Estimate
Tell us what you're noticing — uneven temps, high bills, weak airflow — and we'll inspect your ductwork and give you an honest repair-or-replace recommendation and a clear, no-pressure estimate.