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.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
See the difference
Before
After
Before
After
Before
AfterHow Much Does Duct Repair & Sealing Cost in Brentwood?
Duct repair and sealing in Brentwood typically runs $180 to $450 for a single accessible leak and $600 to $1,500 for whole-home sealing, with most local homes landing in the $400 to $900 range. A duct replacement section or a reinstalled run pushes higher, often $1,200 to $2,600 depending on how far the duct has to travel. These are real 2026 Brentwood numbers, not national averages – the valley heat here drives sealing costs up because more joints fail and more tape gives out than in milder climates.
When you call Duct Cleaning Brentwood at (833) 631-4988, we give an honest range before we drive out, then confirm it on site. Estimates are free, and we tell you straight if a duct isn’t worth repairing.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s what each piece of the work actually costs in Brentwood right now. Your total depends on how many leaks we find and whether the ducts are reachable.
| Service | Typical Price Range | Notes |
|---|---|---|
| Single leak repair & seal | $180 – $450 | Accessible joint, loose tape, or small tear |
| Multiple leak repair (2 – 5 leaks) | $400 – $900 | Most common whole-home estimate |
| Whole-home duct sealing | $600 – $1,500 | Mastic and foil-tape on every reachable joint |
| Duct section replacement | $1,200 – $2,600 | Crushed or disconnected run in crawlspace or attic |
| Insulation wrap add-on | $150 – $400 | Per section in attic runs, hot-valley climate benefit |
| Flexible duct resealing at register boot | $120 – $320 | Per boot, common source of pressure loss |
| Aeroseal (if applicable) | $1,400 – $2,400 | Seals leaks from inside the duct, priced by home size |
What drives cost up: how many leaks, how far we have to crawl, whether the section is behind drywall, and whether the ducts are wrapped with the original builder material. What keeps it down: easy attic or crawlspace access, leaks clustered near the air handler, and no need to replace sections. In Brentwood, we routinely see the joints closest to the furnace and air handler fail first – heat-cycling cracks the tape and mastic there before the rest of the run gives out.
What Affects Duct Repair & Sealing Pricing in Brentwood
- Valley heat cycles. Brentwood summers push 100°F+ for weeks. That expansion and contraction loosens tape and mastic faster than in coastal climates, so we often find more failed joints here than a national checklist would predict.
- Crawlspace vs. attic access. Most older Brentwood homes – the do-it-yourself-era builds around downtown and the subdivisions near Brentwood Park – run ducts through a hot attic. Tight attic access adds labor time, which shows up in the quote.
- Duct type. Flexible duct reseals cheaply. Rigid metal requires different mastic and more time. Trapped, crushed flex above the register is the most expensive to fix because the whole section has to be pulled.
- Number and location of leaks. A single joint behind the air handler is $200 to $300. Ten leaks spread across a three-bedroom ranch pushes you toward the whole-home range.
- Whether sealing is bundled with cleaning. If we’re already on site for duct cleaning – using our Rotobrush and Nikro systems – sealing leaks we find costs less than a separate visit.
- Newer subdivisions vs. older homes. Homes built within the last decade in eastern Brentwood tend to have tighter, better-sealed systems; the older, 1970s – 1990s builds near downtown see more deteriorated duct wrap and disconnected boots.
How to Save on Duct Repair & Sealing
The biggest lever is combining work into one visit. If you’re due for cleaning anyway, seal leaks in the same trip and skip the second mobilization charge. Call (833) 631-4988 for a free estimate and ask whether your home qualifies for a bundled price.
Other ways to keep it reasonable:
- Fix leaks before they multiply. A small tear in Brentwood heat becomes a fully disconnected run in a season. Catching it early is the difference between a $200 repair and a $1,500 section replacement.
- Get the cleaning and sealing in one booking. We’re a specialist, not a generalist – we show up with the same Rotobrush and Nikro professional equipment for both jobs, so an extra trip is one phone call, not a separate contractor.
- Ask about insulation wrap. In valley heat, wrapping exposed attic runs reduces the load on the system and delays future failures.
- Skip the upsell. We tell you when a duct isn’t worth repairing. If Aeroseal won’t pay back, we say so.
How Do I Know If My Ducts Need Repair in Brentwood?
You probably need repair if you notice high energy bills with no change in usage, weak airflow at one or two registers, dust streaks on the ceiling, or a whistling sound near the vents. In Brentwood, we also watch for hot air in the summer – a common sign of a disconnected run dumping conditioned air into the attic. If you’re unsure, our Duct Repair & Sealing in Brentwood service page has the full checklist, or our home page at Duct Cleaning Brentwood covers the three services we handle.
Is Duct Sealing Worth the Cost in Brentwood’s Climate?
Yes – in Brentwood it usually pays back within two to three summers. Because the valley runs so hot, sealed ducts keep the AC from working against leaks in the attic, and most homeowners report lower bills in the first cooling season. Sealing costs $600 to $1,500 for whole-home; the savings on cooling in this climate typically recoup it faster than in mild markets. We verify the work with the same pro-grade tools contractors trust, so you know the leaks are actually closed.
Can I Seal Ducts Myself, or Do I Need a Pro?
A few exposed joints can be sealed DIY with foil-backed tape and mastic, but most Brentwood homes have leaks in the attic or crawlspace that require a ladder, a mask, and reaching into tight spaces full of sheet metal and fiberglass insulation. That’s where professional sealing earns its cost. We’ve seen plenty of homes where a homeowner taped the wrong spot and left the real leak open. If you’re not comfortable in the attic, let a specialist confirm where the leaks are. Our Brentwood dryer vent cleaning page is a good comparison – that’s a service we handle for safety reasons, and duct sealing is similar: the job is small, the risk is not.
How Does Duct Cleaning Pricing Compare?
Duct cleaning in Brentwood runs $350 to $700 for a typical home, while duct repair and sealing runs $180 to $2,600 depending on scope. They’re separate services, but we bundle them – if we’re already cleaning, sealing costs less. Our Air Duct Cleaning in Brentwood page has the full cleaning price guide. For homes in neighboring areas, we also serve Oakley, Antioch, Discovery Bay, and Pittsburg with the same equipment and pricing structure.
What’s the Difference Between Sealing and Cleaning?
Cleaning removes accumulated dust, debris, and contaminants from inside the ducts. Sealing closes the leaks so conditioned air stays inside. Cleaning without sealing means you clean, then leak the same dust back in the attic. Sealing without cleaning leaves the contamination behind. Do both. That’s why we offer both – and why our professional-grade equipment, the Rotobrush and Nikro systems, matter: it reaches what an ordinary vacuum misses, and it lets us see the leaks while we clean.
How Long Does Duct Sealing Take?
A single leak takes 1 to 2 hours. Whole-home sealing typically takes 3 to 6 hours depending on how many leaks and how hard they are to reach. Aeroseal runs 4 to 8 hours. We schedule mornings for most Brentwood jobs so you have the AC back by the hot part of the day.
Do I Need a Permit for Duct Repair in Brentwood?
Replacing a duct run or relocating a register often requires a mechanical permit through the City of Brentwood, but sealing existing joints usually doesn’t. If your job crosses into replacement, we walk you through what’s needed. As a specialist, we stick to duct cleaning, duct repair, and dryer vent work – we don’t pull in scope outside that.
FAQs – Duct Repair & Sealing Cost
How much does duct repair cost in Brentwood?
Duct repair in Brentwood typically costs $180 to $900, with most single-leak jobs at $180 to $450 and multi-leak repair at $400 to $900. Whole-home sealing at $600 to $1,500 if done as a dedicated job. Call (833) 631-4988 for a free estimate – we quote before we arrive.
Is it cheaper to repair or replace my ducts?
Repair is almost always cheaper than replacement – a $200 to $600 repair beats a $1,200 to $2,600 section replacement. Replacement only makes sense when the duct is crushed, disconnected beyond reseal, or the run is so deteriorated that sealing won’t hold. We tell you which one you’re looking at before we touch anything.
How much does whole-home duct sealing cost in Brentwood?
Whole-home duct sealing in Brentwood runs $600 to $1,500. If Aeroseal is a fit for your home, that’s $1,400 to $2,400. Bring us a rough sketch of your home and we’ll give a tighter range on the phone. Call (833) 631-4988 for a free estimate.
Can you come today to look at a leak?
Often yes – we schedule same-day estimates when our route allows. Call (833) 631-4988 and we’ll tell you what’s realistic for your area of Brentwood. We carry the Rotobrush and Nikro equipment on every truck, so if the leak is accessible we can fix it the same visit.
How much does duct repair add to a duct cleaning?
When bundled with a cleaning, sealing the leaks we find typically adds $150 to $400 to the cleaning price. That’s lower than a standalone sealing visit because there’s no second trip. Ask for the combined rate when you call (833) 631-4988 – estimates are free.
Do you use the same equipment for repair as cleaning?
Not the same tools, but the same standard. Our cleaning runs on Rotobrush and Nikro professional-grade systems, and our repair work is backed by Honeywell and Aprilaire components and Abatement Technologies air-quality products where they apply. That means we seal what we find and verify the result with the tools contractors trust – not a shop vac and a roll of tape.
How much does dryer vent cleaning cost in Brentwood?
Dryer vent cleaning in Brentwood typically runs $125 to $250 depending on vent length and lint buildup. It’s a fire-prevention service, not an upsell – built-up lint is a leading cause of dryer fires, and we eliminate the risk with the same pro-grade equipment we use on ducts. Call (833) 631-4988 to bundle it with your duct work.
Key Takeaways
- Duct repair and sealing in Brentwood: $180 to $1,500 for most jobs; section replacement runs $1,200 to $2,600.
- Whole-home sealing is $600 to $1,500, and it usually pays back within two to three summers in Brentwood’s heat.
- Bundling cleaning and sealing in one visit saves $150 to $400 versus separate trips.
- We repair what we find, not just clean around it – using Rotobrush, Nikro, and Abatement Technologies equipment.
- Estimates are free. Call (833) 631-4988.
Pricing reflects the Brentwood market as of 2026. Duct Cleaning Brentwood offers free estimates – call (833) 631-4988.
What Our Customers Say
"Found a disconnected run in the crawlspace while they were in there and told me about it rather than cleaning around it."
- Nisha Reddy"They photographed every return and supply before starting and sent me the file afterward. No upsell to a sanitizing treatment I didn't need."
- Adriana Hernandez"Quoted per system rather than the bait and switch per vent pricing everybody else in town uses. The number I was told on the phone was the number on the invoice."
- Tara Sullivan