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
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After
Before
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Westminster?
Duct repair and sealing in Westminster typically runs $350 to $2,800, with most single-family homes landing between $650 and $1,400. Small jobs, like re-sealing a few accessible joints or reconnecting one or two flex runs, can finish under $500. Whole-home duct replacement, or repairing collapsed and heavily damaged trunk lines in a larger two-story house, pushes toward the top of that range. We give free written estimates before any work starts, so you’ll know your number before we touch the attic.
If you’re already hearing a rattle, feeling uneven airflow, or noticing dust collecting faster than it used to, the problem is usually a duct issue, not your HVAC unit. Getting a real diagnosis first saves money. You can read the full scope of what we handle on our Duct Repair & Sealing in Westminster page, or keep reading for line-item pricing.
Key Takeaways
- Most duct repair and sealing jobs in Westminster cost $650 to $1,400.
- The single biggest cost driver is whether ducts are leaking at accessible joints or physically damaged (disconnected, crushed, torn).
- Mastic sealing is cheaper and longer-lasting than foil tape. Cheap tape is the most common failure we find.
- Westminster’s older housing stock (a lot of it from the 1950s through 1970s) means we often find rigid metal ducting that’s been patched repeatedly.
- We use Rotobrush and Nikro equipment on every repair job, so we can clean and inspect while we repair.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s a realistic breakdown of line-item pricing for the Westminster market. These are what we actually charge, not national averages pulled from an aggregator.
| Service | Typical Price Range | Notes |
|---|---|---|
| Sealing accessible duct joints with mastic | $350 – $700 | Best value fix for leaky ducts in attics and crawlspaces |
| Reconnecting a disconnected flex duct run | $250 – $500 per run | Common in tract homes where flex was installed fast |
| Repairing crushed or torn flex duct (up to 3 runs) | $500 – $950 | Replacement of damaged sections included |
| Repairing rigid metal duct leaks and gaps | $600 – $1,200 | Sheet metal, mastic sealing, and insulation work |
| Sealing an entire duct system (beyond accessible joints) | $900 – $1,800 | |
| Duct system cleaning before repair | $350 – $600 (add-on) | Recommended before sealing, so debris doesn’t get trapped |
| Partial duct system replacement (single zone) | $1,200 – $2,000 | When duct is beyond repair |
| Full duct system replacement (typical single-family home) | $2,200 – $2,800 | Rare; reserved for severely damaged systems |
| Post-repair airflow and pressure verification | Included | We confirm the fix worked before we leave |
What pushes the cost up is usually damage, not size. A big house with well-maintained ducts can cost less to repair than a small house with collapsed flex runs and buried joints. Accessibility matters most.
We confirm the outcome with a post-repair airflow check. If the fix didn’t restore the flow, you’d know it on the next hot day. We make sure you don’t get surprised. Getting a sealed system right the first time is cheaper than calling us back in.**
What Affects Duct Repair & Sealing Pricing in Westminster
Duct repair pricing is one of those things where two houses on the same block can get very different estimates. Here’s what causes that, specific to how homes in Westminster are built:
- Access. Westminster has a lot of homes where attic and crawlspace access is tight. We’ve worked in houses off Westminster Boulevard and around the Midway City border where the only way into the attic is a small scuttle hatch. When a technician needs an hour just to get in and out, that time factors into the estimate.
- Duct material. Tract homes built during the 1960s and 1970s often still have rigid metal ducting, which sometimes needs sheet-metal work, not just mastic sealing. That’s more skill and time than slapping mastic on a flex joint. Metal duct repairs sit higher on the range because of the labor involved.
- Number of problem runs. We charge per run for flex replacement. Two runs cost less than six. Most homes that call us have three to five problem runs, and sometimes the homeowner only knows about one because that’s the room that’s hot.
- Flex vs. rigid. Flex duct is cheaper to replace; rigid metal holds up longer but costs more to repair. If your home has a mix, we price each section by what it needs.
- Whether cleaning is needed first. You can’t seal a dirty system properly. Lint, dust, and debris block mastic from adhering and trap contaminants inside after sealing. Our home page shows all three service lines and how cleaning fits before repair. Cleaning before sealing is standard practice, not an upsell.
- Filtration setup. If your system uses Honeywell or Aprilaire filtration, we account for those filters and the cabinet connections during sealing. A leaky filter cabinet negates the filter’s whole purpose, so we treat those connections as part of the job.
Why Duct Seal Failures Are So Common in Westminster
A lot of the duct issues we find in Westminster come down to dry air. This isn’t humid coastal weather. Inland Orange County runs on the dry side, and dry air ages foil tape faster than you’d expect. Foil tape loses adhesion over five to ten years, especially in attics that hit 140°F or more in summer.
We regularly find duct runs in Westminster homes where the tape has peeled off entirely. The homeowner never noticed because the system kept running. What they did notice was a room that never got comfortable, or a monthly bill that read higher than the neighbors’.
Mastic is the fix. It’s a brushable sealant that bonds to the duct surface and holds through temperature swings, and it’s what we use on every job. Tape alone is a temporary patch. When we see a system that’s been taped and re-taped multiple times, mastic usually resets the clock.
What Our Rotobrush and Nikro Equipment Means for the Job
A leaky duct system and a dirty duct system are often the same job. That’s why we show up with the same equipment used in commercial restoration work: Rotobrush rotary brush systems and Nikro HEPA-filtration vacuums. These capture what we loosen as we work, so debris doesn’t migrate into your living space.
For jobs where air quality matters, and that’s most of our customers, we also carry Abatement Technologies containment equipment. That keeps dust out of the rooms while we open and seal ductwork inside the home. If you or someone in your household has asthma or allergy concerns, this is a detail worth asking about on any estimate you get in Westminster.
During repair, we inspect the ductwork we can reach, photograph what we find, and tell you what’s leaking and why. When we’re done, we verify every run we touched. If you’re comparing contractors, ask what equipment they use on-site and whether they verify airflow afterward. The answer tells you a lot.
How to Save on Duct Repair & Sealing
A few practical things that actually lower the price:
- Get the inspection before you get the estimate. An accurate repair estimate starts with someone climbing into the attic. Phone-quote-only estimates tend to come back higher once the technician gets there. Ours are free and done on-site.
- Bundle cleaning and repair. Sealing a system that hasn’t been cleaned first is a waste of money. Doing both in one visit is cheaper than scheduling them separately, since the technician is already set up.
- Fix the small leaks now. A single disconnected run in Westminster costs about $250 to $500 to reconnect. Ignoring it can let cooled or heated air escape for years and add up in energy cost. Left alone, the problem usually gets bigger.
- Ask about leak sealing on joints during routine maintenance. mastic sealing at accessible joints is a $350 – $700 job if done together with a repair. Standalone visits cost more because of scheduling.
- Check whether you have a filtration cabinet. If you have Honeywell or Aprilaire equipment, mention it. We work with those systems routinely and can price sealing to include the filter connections.
We keep estimates free and upfront. Call (877) 752-8412 and we’ll set a time that works for you.
Repair vs. Replace: Which Costs Less Over Time?
This question comes up on almost every estimate, and the honest answer depends on the age and condition of what’s in the attic.
If your ductwork is mostly intact and the failures are at joints, connections, or a handful of runs, repair is clearly the cheaper path. Sealing and targeted repair in Westminster typically runs $650 to $1,400. A partial or full replacement starts at $1,200 and goes up to $2,800. The repair cost is lower and the fix lasts if you seal properly.
Replacement becomes the better choice when ductwork is crushed in multiple runs, riddled with old taped patches, and buried under insulation past the point that repairing it makes sense. In those cases, patching it now means paying again in a few years. If you’re already planning a new HVAC system, some duct systems are better replaced at the same time.
We’ll tell you which one we think you need. If repair is the right call, that’s the estimate we give you.
Why Duct Repair Belongs Under the Same Roof as Cleaning
Most duct cleaning companies only clean. When they find disconnected or leaking ductwork, their answer is usually “that’s a repair issue, you’ll need a different contractor.” That leaves you scheduling two vendors for one problem, and sometimes the cleaning gets done on a system that’s about to be repaired, which isn’t the right sequence.
We handle all three: dryer vent cleaning, duct cleaning, and duct repair. One crew, one inspection, one visit where possible. If you’re a property manager, that matters: it means one point of contact, one documented job, one invoice. If you’re a homeowner, it means the ductwork you just paid to clean is the same ductwork that gets sealed and verified.
That’s the positioning. We’re not the cheapest name on a flyer; we’re the crew that shows up with the right equipment, inspects the whole system, and fixes what we find. We work with leading indoor air quality brands like Honeywell and Aprilaire, and we carry Guardsman products for sealing and compatibility with the systems those brands use.
FAQs – Duct Repair & Sealing Cost
How much does duct repair cost in Westminster?
Most jobs cost $650 to $1,400. Small fixes like reconnecting a single flex run start at $250. Full replacement of a damaged system tops out around $2,800. Call (877) 752-8412 for a free on-site estimate.
Is duct sealing or duct replacement cheaper?
Sealing is almost always cheaper. Standard sealing runs $350 to $1,800 depending on how much of the system is accessible. Replacement starts at $1,200 and goes up to $2,800. If the ductwork is mostly intact, sealing will save you money.
How long does duct repair take?
Most jobs we do in Westminster finish in a few hours to a full day. Reconnecting a couple of flex runs is a short visit. A full system seal or partial replacement is usually a full day, sometimes two if the attic access is tight. Call (877) 752-8412 and we’ll walk you through how long your job is likely to take.
Do I need a permit for duct repair in Westminster?
Replacing ductwork often requires a city permit for HVAC contractors; repair and sealing typically don’t, though it can depend on scope. We can tell you what your job requires during the estimate. If you have questions about your specific project, call (877) 752-8412.
Can you fix ductwork and clean it at the same time?
Yes, and that’s how we recommend doing it. Cleaning before sealing keeps debris out. Both done in one visit saves you the cost of a second trip. Call (877) 752-8412 to schedule a combined estimate.
Book Your Free Duct Repair Estimate in Westminster
If you’re noticing uneven airflow, rooms that don’t hold temperature, or dust collecting faster than it used to, the diagnosis is worth getting now. Duct issues don’t stop on their own; they get more expensive. We give free on-site estimates, we show you what we find in the attic, and we tell you whether repair or replacement is the honest answer for your system.
We serve homeowners across Westminster, from Midway City to the neighborhoods around Westminster Mall, and we bring Rotobrush, Nikro, and Abatement Technologies containment to every job. One call handles cleaning, repair, and dryer vent work, so you’re not scheduling multiple contractors. Call (877) 752-8412 for a free estimate and we’ll find a time that works.
Pricing reflects the Westminster market as of 2026. Duct Cleaning Westminster offers free estimates – call (877) 752-8412.
Written by the team at Duct Cleaning Westminster, serving Westminster and the surrounding Orange County area.
What Our Customers Say
"Told me straight that our ducts were in decent shape and didn't need doing every year like the mailer companies claim."
- Jason Meyer"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Kevin Gallagher"Fair price and thorough work. They ran about an hour and a half past the estimated finish time, so don't schedule anything tight after."
- Elena Martinez