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
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After
Before
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Moreno Valley?
Duct repair and sealing in Moreno Valley typically costs $350 to $1,200, with most single-system jobs landing between $450 and $750. Sealing alone (mastic and foil tape on accessible joints) is the low end; repairing crushed flex runs, replacing damaged plenum connections, or sealing a larger attic system pushes the figure toward the top. Small, easy fixes like re-taping a handful of separated joints can come in under $350, and a written estimate sets the final price.
We answer 24/7, fast dispatch from 7am to 7pm, Sunday through Friday, and every estimate is free. Call (877) 387-1334 to get a number for your house.
Duct Repair & Sealing Cost Breakdown (2026)
Every home’s duct layout is a little different, so use these ranges as a starting map rather than a quote. A technician measures your system, finds where the leaks and damage actually are, and prices the job against what’s there.
| Service | Typical 2026 Range | What It Covers |
|---|---|---|
| Joint sealing (mastic + tape on accessible ducts) | $350 – $550 | Sealing gaps at plenums, boots, and trunk joints you can reach |
| Full system seal (supply and return) | $550 – $950 | Sealing every reachable connection across the whole run |
| Flex duct repair (reconnect or replace a damaged run) | $250 – $600 per run | Fixing crushed, torn, or disconnected flex ducting |
| Sheet metal duct repair | $450 – $1,100 | Patching, resealing, or rebuilding rigid ductwork |
| Plenum repair or rebuild | $400 – $900 | Fixing the main air box where the furnace or air handler connects |
| Register boot and takeoff repair | $150 – $350 each | Resealing or replacing the connection behind a vent cover |
| Duct replacement (per section) | $600 – $1,800 | Removing failed ducting and installing new, sealed runs |
| Diagnostic and leak inspection | Free with estimate | Locating leaks, damage, and airflow losses |
Most Moreno Valley homes have their ductwork in the attic, which keeps the work fairly straightforward but heats the ducts hard during summer. That heat cycle is usually what drives the repair list up. What pushes cost higher: a long run count, a wide attic that takes time to move through, damaged boot connections behind drywall, or an older rigid metal system that needs rebuilding rather than resealing. What brings it down: accessible joints, a single-story home with a tight, tidy layout, and a system where the leaks are all in one or two places.
Need the cleaning side priced too? Our duct cleaning Moreno Valley service is quoted the same way, and pairing cleaning with repair in one visit is the efficient path because the technician is already in the attic with the system opened up.
What Affects Duct Repair & Sealing Pricing in Moreno Valley
Pricing here isn’t guesswork. A technician looks at six things on a walkthrough, and each one moves the number.
- Attic heat and material breakdown. Moreno Valley summers are hot enough that flex ducts bake, and the tape and sealant on older systems dries and cracks. The hotter the attic and the older the ducting, the more joints have failed and the more there is to reseal. This is the single biggest cost driver we see locally, more than home size.
- How many runs and connections. A small house with six supply runs and a single return is a shorter job than a two-story with a dozen runs and two returns. Each register boot, takeoff, and plenum connection is a point to seal, so the count matters more than the square footage.
- Attic access and clearance. A pull-down stair and a clean, walkable attic keep labor time down. Low-roof clearances, cramped layouts, a hot afternoon start, and gear that has to be handed up make the same work take longer, and labor is most of the bill.
- Duct material. Flex duct is quicker to repair and reseal. Rigid sheet metal holds up longer but takes more time to patch and rebuild, so assume the higher end of the range for older metal systems. Some homes have a mix, which splits the difference.
- Condition of the system and any hidden damage. A crushed run behind a knee wall or a boot pulled loose behind drywall adds access work. So does any damage from pests or a roof leak into the attic. The more the technician has to open up and reach into, the longer the list.
- Duct cleaning as part of the job. Sealing a dirty system traps debris and won’t help air quality. When cleaning is added (professional-grade Rotobrush and Nikro equipment, not a shop vac), it’s priced separately but done in the same visit, which saves the trip and the setup.
You’ll also want to know how duct repair and Moreno Valley homes tend to fare as systems age: the older the ducting, the more often sealing alone won’t fix airflow because the duct itself is failing. A technician should tell you that plainly on the estimate rather than after the work starts.
Repair or Replace: Which One Costs Less Over Time?
Repair is almost always cheaper up front, and on a system with a handful of failed joints it’s the right call. Sealing a healthy duct system restores airflow for a few hundred dollars. Replacing ductwork runs from $600 to $1,800 per section and only makes sense when the ducting itself has failed, meaning crushed flex behind walls, brittle old metal, or a system with so many leaks that sealing won’t deliver a seal.
A quick rule: if more than a couple of runs are damaged or the metal is sagging and thin, replacement becomes the smarter spend because a repair on failing duct will need repeating. If the system is mostly sound and the leaks are at the joints, sealing is the efficient choice and you’ll feel the airflow difference at the registers. Ask your technician to show you what they’re seeing in the attic, not just to hand you a number.
If you’re also wondering whether cleaning is worth doing before repair, our guide on how often ducts need cleaning covers what to look for. And if you’re booking a walkthrough, a free estimate is the fastest way to know which side of that line your system is on.
Same-Day Repair and What Happens When You Call
Call (877) 387-1334. We answer 24/7. A call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm. We’re closed Saturday. Same-day service is often possible when the schedule allows, and fast dispatch from 7am to 7pm gets a technician out to look at your system.
Here’s the process. You describe the symptom (poor airflow at the registers, a whistling noise, dust showing up on every surface, rooms that won’t cool). A technician arrives, opens up the attic, and finds where the system is losing air. You get a written estimate that lists what’s getting sealed, what’s getting repaired, and what it costs. There’s no service-call fee to look, and estimates are free. The written estimate sets the final price, and what you were quoted is what you pay.
If your ducts are also overdue for cleaning, our guide to air duct repair explains how a failing joint and a dirty system often show up together, and why handling both in one visit is the practical sequence. For larger jobs that need containment and air scrubbing, we bring in Abatement Technologies air filtration equipment so the work area stays controlled.
How to Save on Duct Repair & Sealing
There’s no magic discount, but a few habits keep the bill on the low end of the range.
- Fix a small leak before it becomes a big one. A whistling joint sealed for $150 today is cheaper than a crushed run and water damage repaired next year. Watch for whistling at the registers and dust streaks at the joints as early signals.
- Bundle cleaning and repair in the same visit. One trip, one setup means you’re not paying for the attic to be re-entered. Pairing the work is the most reliable savings available.
- Keep the attic accessible. Clear the pull-down path, remove stored boxes from around the air handler, and make sure there’s light to work by. Less time moving gear is less labor on the invoice.
- Ask about simple sealing first. If your system is mostly sound, mastic and tape on the accessible joints ($350 to $550) restores a lot of lost airflow before bigger work is considered.
- Get the free estimate and read it closely. The estimate should name what’s getting sealed or replaced and where. If a number comes without a walkthrough, ask for one. Call (877) 387-1334 and we’ll put you on the schedule.
If airflow trouble is tied to dust and debris, our guide on dryer vent cleaning is worth a look too: a blocked dryer vent is a fire risk, and it’s a separate line item that adds real safety value to a duct visit.
Why Professional Equipment Changes the Outcome
Duct repair and sealing done right depends on what’s in the truck and who’s holding it. A shop vac and a roll of tape won’t seal a pressurized system or reach the connections that matter. We show up with purpose-built tools: the Rotobrush rotary brush system for cleaning duct walls, Nikro equipment trusted by HVAC professionals, and Abatement Technologies filtration for jobs that need containment and air scrubbing. For customers who want to go further on indoor air quality after the work, we stock Honeywell and Aprilaire products so the fix connects to a broader solution rather than ending at the attic door.
We’ve served Moreno Valley since 2016. That’s a decade in a valley where hot attics chew through duct tape and flex faster than most homeowners realize. We don’t call ourselves the best; we ask that you judge the work by the equipment, the written estimate, and the airflow you can feel at the registers once we’re done. Air quality you can measure, not just promise.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Moreno Valley?
Duct sealing in Moreno Valley typically runs $350 to $950, with joint sealing on the accessible ducts at the low end and a full supply-and-return seal toward the top. Call (877) 387-1334 for an exact quote; estimates are free.
Is it cheaper to repair or replace damaged ductwork?
Repair is almost always cheaper, at $250 to $600 per damaged run versus $600 to $1,800 per section to replace. Replacement wins only when the ducting itself has failed, so get a walkthrough before deciding. Call (877) 387-1334 and we’ll tell you which side of that line your system is on.
Can you fix a leaky duct the same day?
Yes, same-day service is often possible when the schedule allows. Call (877) 387-1334. We answer 24/7. A call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm. We’re closed Saturday.
Why do my ducts leak more in Moreno Valley than in cooler areas?
Attic heat is the reason. Summer temperatures in the valley bake flex duct and dry out sealant and tape, so joints crack sooner than they would in a milder climate. Resealing every few years keeps losses down, and a free estimate tells you where you stand.
How much does duct cleaning cost alongside a repair?
Duct cleaning is priced as its own line item and quoted at the walkthrough, and doing it in the same visit as the repair is the money-saving move because the technician is already in the attic. Call (877) 387-1334 to bundle both into one free estimate.
Whether your system needs one joint sealed or a full rebuild, the answer starts with someone standing in your attic and telling you exactly what’s there. Call (877) 387-1334 for a free estimate from Duct Cleaning Moreno Valley. We answer 24/7, fast dispatch from 7am to 7pm, Sunday through Friday, and we’re closed Saturday. We’ll show you the tools, explain the process, and leave you with a written number you can trust.
Written by the team at Duct Cleaning Moreno Valley, serving Moreno Valley since 2016.
Pricing reflects the Moreno Valley market as of 2026. Duct Cleaning Moreno Valley offers free estimates – call (877) 387-1334.
What Our Customers Say
"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."
- Veronica Hernandez"Told me straight that our ducts were in decent shape and didn't need doing every year like the mailer companies claim."
- Dana Hoffman"Found a disconnected run in the crawlspace while they were in there and told me about it rather than cleaning around it."
- Travis Anderson