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 Rancho Bernardo?
Duct repair and sealing in Rancho Bernardo typically runs $350 to $1,200 for most residential jobs, with whole-house sealing averaging around $650. Small patch jobs on a single leaky joint can land near $250, while a major flex-duct replacement in a two-story home can reach $2,800. The number that matters is how much conditioned air you’re losing right now, because a system leaking 20 to 30 percent of its output is paying a premium on every energy bill until it’s sealed.
We’re Golden Air Duct. We diagnose the whole duct system, clean it, and repair what we find. Same visit, same team. If you’re calling us because your energy bill climbed this summer or a room in your house never gets cool, that’s exactly the work we do.
Key Takeaways
- Most Rancho Bernardo duct repair and sealing jobs cost $350 to $1,200, with a sweet spot around $650 for whole-house sealing.
- Leaky ducts waste 20 to 30 percent of the air your HVAC produces, so sealing usually pays for itself in 12 to 24 months of energy savings.
- We use Rotobrush rotary brush systems, Nikro HEPA vacuums, and Abatement Technologies negative-air containment, so debris doesn’t recirculate into your home during the work.
- We find the problem and fix it in the same visit. No second contractor, no follow-up appointment.
- Free estimates: call (844) 798-0150 for an exact quote on your home.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s what the work actually costs in the Rancho Bernardo market. These ranges reflect what we see on real jobs in 92127, 92128, and the surrounding neighborhoods.
| Service | Typical Price Range | Notes |
|---|---|---|
| Diagnostic inspection (leak test, camera) | $95 to $180 | Credited toward repair if you book the work |
| Single-joint repair & seal (small leak) | $250 to $450 | Common in older Westwood homes |
| Whole-house duct sealing (mastic + tape) | $550 to $1,100 | Most common job in Rancho Bernardo |
| Aeroseal-style interior sealing | $1,200 to $2,100 | Best for hidden leaks behind drywall |
| Flex duct section replacement (per run) | $300 to $550 | Common in attic runs |
| Full flex duct replacement (whole house) | $1,800 to $2,800 | Usually 8 to 14 runs |
| Collapsed or disconnected duct repair | $400 to $900 | Including new hangers and mastic |
| R-8 insulation wrap on exposed runs | $6 to $10 per linear foot | Attic runs lose heat fast in summer |
| Duct cleaning (combined with repair) | $350 to $700 | Discounted when bundled |
What pushes cost up: hard-to-reach attic runs, ductwork tangled behind drywall, multiple disconnected joints, and homes where the previous installer used duct tape instead of mastic or metal. What pulls it down: a single problem area, easy attic access, and bundling cleaning with repair while we’re already in the system. You can read more about the repair side on our Duct Repair & Sealing in Rancho Bernardo page.
What Affects Duct Repair & Sealing Pricing in Rancho Bernardo
- Home age. Rancho Bernardo has a lot of homes built between 1962 and 1990. Those decades used flex duct and tape that has since degraded. In a 1978-built home near the Country Club, we routinely find three or four joints where the tape has dried out and the connection has pulled apart. A 2005-built home in the newer sections usually has tighter ductwork and fewer leaks.
- Number of leaks found. A single leak is one price. When we smoke-test a system and find eight small gaps, that’s a different job. Most Rancho Bernardo homes hit somewhere in the middle, which is why $650 whole-house sealing is the most common invoice.
- Access. Attic access matters more than anything else. If the attic has a pull-down stair, a walkable deck, and 5 feet of clearance, the work moves fast. If the only access is a small hatch in a hallway closet and the attic is packed with insulation and AC hardware, expect the higher end of the range.
- Duct material. Flex duct is cheaper to repair. Rigid metal ductwork lasts longer but takes more labor to seal properly because there are more joints and more surfaces. Sheet-metal work in a mid-century home runs higher than a modern flex system.
- Climate-driven wear. Rancho Bernardo summers push attic temperatures past 140°F. That heat breaks down duct tape, mastic, and the outer jacket on flex duct faster than in cooler climates. We regularly see spring failures here in late August when the season’s heat has done its work. Dry Santa Ana winds also dry out and crack older mastic in ways coastal homes never see.
- Repair vs. replace. A single section of flex duct can be replaced for less than a full sealing job. But if the whole system is failing, patchwork is wasted money. We’ll tell you which one you’re looking at, with photos, before any work begins.
How to Save on Duct Repair & Sealing
There are a few ways to keep the cost down without cutting quality.
- Bundle cleaning with repair. If we’re already in the system cleaning it, we can seal what we find without a second trip. That usually shaves $150 to $250 off a combined job.
- Fix it before it spreads. A single loose joint in a Rancho Bernardo attic in June becomes three loose joints by September. Early repair is cheaper repair.
- Ask for the diagnostic to be credited. We credit the inspection fee toward the repair if you book it, so you’re not paying twice for the same trip.
- Check for SCE rebates. Some energy efficiency upgrades in San Diego County qualify for rebates. Ask us and we’ll point you in the right direction.
- Don’t skip the seal to save money. Unsealed leaks will cost you $20 to $40 a month on your SDG&E bill for the life of the home. That adds up fast.
We offer free estimates, so you don’t have to guess. Call (844) 798-0150 and we’ll walk you through what we expect to find in a home like yours before we ever step on site.
Why Rancho Bernardo Ductwork Costs What It Does
We’ve been in enough Rancho Bernardo homes to know the patterns. The neighborhoods around The Bridges, Westwood, and Bernardo Heights share a specific issue: original ductwork from the 1970s and 1980s was installed with tape and minimal mastic. That tape has been failing since the Clinton administration. When we smoke-test a typical 1982 home in Westwood, we usually find four to seven leaks, and most of them are at joints we can access from the attic
The other pattern is the two-story homes built in the 2000s with long flex runs across a hot attic. Those runs lose heat or cool air over 30 to 40 feet of flex, especially when the outer jacket has been scraped or compromised by pest activity or shifting insulation. Sealing those runs correctly takes more labor than a single-story home, and the price reflects that.
The one thing that doesn’t change by neighborhood: 20 to 30 percent of your HVAC’s output leaves through leaks. Sealing fixes it. That’s the whole pitch.
What’s Included in Every Repair and Sealing Job
Every job we do includes the same core workflow, no matter the size.
- Diagnostic inspection. We test the system to find leaks, disconnected joints, collapses, and insulation damage. We photograph everything.
- Containment. We set up Abatement Technologies negative-air containment before we touch the duct system, so anything dislodged during the work is captured and doesn’t recirculate into your home.
- Cleaning where needed. We use the Rotobrush rotary brush system and Nikro HEPA vacuum to clear debris before sealing. Sealing over dirt and dust is a waste of money.
- Repair. We reattach, reconnect, and replace sections that have failed. We use mastic and mechanical fastening, not duct tape alone.
- Sealing. Mastic on every joint we can reach, plus foil tape where needed. If your leaks are behind drywall, we can discuss Aeroseal-style interior sealing as an option.
- Post-repair verification. Before we leave we check that the system is running as it should and that the leaks are closed.
This is where we separate from a duct cleaning crew that doesn’t repair. When we find a problem, we fix it. Same visit, same team. Back to Golden Air Duct for the full picture of what we do.
Is Duct Sealing Worth It in Rancho Bernardo?
Yes, for most homes in this climate. San Diego County runs some of the highest electricity rates in the country right now. A 25 percent duct leak on a 3-ton system means you’re paying for 3 tons of cooling and getting roughly 2.2 tons of it in your rooms. Sealing closes that gap. We see energy bills drop 10 to 20 percent after a proper sealing job in Rancho Bernardo, which typically pays back the cost of sealing in 12 to 24 months.
The other reason: indoor air quality. Leaking ducts in a Rancho Bernardo attic pull attic dust, insulation particles, and whatever else is up there into your supply air. That shows up as more dust on surfaces, worse allergies indoors, and filters that clog faster. If you have a Honeywell or Aprilaire filtration system, leaks downstream of that equipment undercut it. We work with these systems regularly, and we know how duct condition affects how well they perform.
Frequently Asked Questions About Duct Repair & Sealing Cost
How much does duct sealing cost in Rancho Bernardo?
Whole-house duct sealing in Rancho Bernardo typically costs $550 to $1,100, with most jobs landing around $650. Interior Aeroseal-style sealing runs $1,200 to $2,100 when leaks are behind drywall. Call (844) 798-0150 for an exact quote on your home. Estimates are free.
Is it cheaper to repair ductwork or replace it?
Repair is cheaper in most cases. A single section or a handful of joints runs $250 to $550, while a full flex duct replacement for a whole house runs $1,800 to $2,800. If the system is 20-plus years old, has multiple failed joints, or is visibly collapsing, replacement is the better money. We’ll tell you which one you’re facing after the diagnostic, with photos.
How much do leaky ducts add to my SDG&E bill in Rancho Bernardo?
Leaks of 20 to 30 percent add roughly $20 to $40 per month in the summer cooling season and $10 to $20 in winter. That’s $250 to $450 a year for most Rancho Bernardo homes. Sealing the system usually pays for itself within two years. Call (844) 798-0150 if your bill has climbed and you’re not sure why.
Can duct repair and cleaning be done the same visit?
Yes. We do the inspection, cleaning, repair, and sealing in a single visit for most homes. Bundling saves you the cost of a second trip, usually $150 to $250. We use Rotobrush and Nikro equipment along with Abatement Technologies containment so the work stays contained while it happens.
How long does duct repair and sealing take in Rancho Bernardo?
Most jobs take 3 to 5 hours. Small repairs on one or two leaks are done in 2 to 3 hours. Whole-house sealing with cleaning runs 5 to 6 hours. Full duct replacement is a full-day job. We give you a time window when we schedule, and we finish same day.
Do I need a permit for duct repair in Rancho Bernardo?
Minor duct repair and sealing typically doesn’t require a permit in the City of San Diego. Full duct replacement, or work that changes the HVAC system’s layout, may. We’ll flag it if a permit applies to your job before we start. Call (844) 798-0150 and we’ll tell you what to expect.
Signs You Need Duct Repair Before It Costs More
If you’re seeing any of these, it’s worth a diagnostic now instead of later.
- Rooms that never get cool even when the AC runs all day.
- Dust on horizontal surfaces climbing faster than it used to.
- Energy bills up 15 percent or more versus the same month last year.
- Visible sagging in the flex duct in your attic.
- Whistling or rattling at the vents.
- Warm air coming out of a supply vent when the AC is on.
These symptoms point to a leak, a disconnection, or a collapsed run. The longer any of them goes unaddressed, the more the system has to work, and the more expensive the eventual fix. A diagnostic visit is $95 to $180, and we credit it toward the repair if you book.
What Sets Golden Air Duct Apart
Most companies in this market clean ducts. Fewer repair them. We do both, in one visit, with professional-grade equipment on every job. Our Rotobrush rotary brush system and Nikro HEPA vacuums are purpose-built duct equipment, not shop vacs. Our Abatement Technologies negative-air containment is the same standard used in commercial abatement work, and it’s how we keep the air in your home clean while we work on the system.
We’ve worked alongside Honeywell, Aprilaire, and Guardsman equipment long enough to understand how duct condition affects everything downstream. A clean, sealed system your filtration and air purifier can actually work with is the goal. We find the problem, we fix the problem, and we finish the job the same day. Your dryer vent matters too, and we handle those as a dedicated service because a clogged vent is a real fire risk.
Call for a Free Estimate on Duct Repair in Rancho Bernardo
If your energy bill is climbing or your rooms don’t cool the way they used to, the answer is probably in the ductwork. Call Golden Air Duct at (844) 798-0150 for a free estimate. We’ll test the system, show you what we find, and quote the repair before we start. We serve Rancho Bernardo and the surrounding North County neighborhoods. No guesswork. No upselling. Just a real diagnosis and a real fix.
Pricing reflects the Rancho Bernardo market as of 2026. Golden Air Duct offers free estimates – call (844) 798-0150.
What Our Customers Say
"Showed up when they said they would. That's most of the battle."
- Daniela Martinez"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."
- Tracy Miller"Asked a lot of questions before he came out, which I thought was a good sign. Turned out he was right about what the problem probably was, so he showed up with the part already on the truck."
- Danielle Thompson