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
★★★★★
Rodent intrusion and the associated damage they cause is the worst! After reading reviews, I decided on Attic Pros because they have great reviews and because they specialize in the work I needed. I was not disappointed. Within a few days of reaching out, Tom came out and did the estimate. The work began only two business days later! The work was scheduled over two days but they did it all in one! The guys arrived on time and were cheerful, polite, and pleasant to deal with. Kevin showed me pictures and video periodically throughout the day so I could see the work, start to finish. He answered all of my questions and explained everything clearly and patiently. Before they left they made sure there was no trash or debris left behind. The crawl space now looks like it belongs under a brand new home, it’s that clean and tidy. I highly recommend Attic Pros for all of your insulation and rodent elimination needs. Update: I came back and edited this, removing a star. The work and workers were great. However, a few days after the job, Julian from their business office messaged me that they had not received payment and the invoice was past due, even though they were paid IN FULL THE DAY OF WORK. Proof of payment was provided and he messaged me that a receipt would be sent when the payment was deposited. Very disappointing and unprofessional of him to go after a customer for payment when the problem lies with their accounts receivable. 10/14/26 I am adding to my review because issues had been discovered over time. They had missed a place where rats were entering, even though they had been out twice to check traps and found some. This guy did a less than thorough cleaning but he did close off the previously missed access point. My rat intrusion problem has been ongoing. 11/6/26 Attic Pros followed through and sent out Raul, an excellent worker, who took care of everything and made it right. While it may have been problematic for a bit, they kept working until it was all made right. They have been kind and communicative, specifically Paula. I will be calling them again in the Spring to work on a different area of my home.
C Hensley
Google Review
★★★★★
Samim very professional
Rick Weiss
Google Review
★★★★★
Did crawl space cleanup and rodent proofing. They were very efficient and thorough.
James Feichtl
Google Review
★★★★★
Samim was great and work very hard. We appreciate him very much.
Amir assadi-rad
Google Review
★★★★★
Attic Pros did a great job with sealing up holes and gaps and installing mesh I would recommend them I had a good experience with them
Felipe Bernal
Google Review
★★★★★
UPDATE: I really appreciate the company followed up after my concerns were raised. They took accountability for what happened, handled the situation professionally, and offered to fix all the issues. Their responsiveness and willingness to make things right completely changed my impression, and I’m happy to update my review to 4 stars. They ultimately completed the job, but the overall experience was far from hassle-free. During the process, they damaged our ceiling and later repaired it, though the result was not fully satisfactory. There were multiple mistakes along the way, both in the actual work and in billing, which meant we had to stay very involved to ensure nothing was missed. Communication was also a challenge. Our consultant, Tom, was not as responsive as expected, especially given how busy schedules can be in the Bay Area. We often had to follow up multiple times to get updates or have issues addressed. Overall, while the job was eventually finished, the process required more oversight and effort than it should have. If I were to go through this again, I would choose a different company.
Daniel Yahyazadeh
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.