Whole-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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Repair & Sealing Across Phoenix
Duct repair and sealing in Phoenix typically costs $280-$680 for most residential systems, with full flex-duct replacement in unconditioned attics running higher depending on linear footage. We dispatch our Duct Repair & Sealing crews from our Phoenix office, so you’re not waiting on a truck from Tucson or Flagstaff. Call (520) 464-6297 and we’ll put a written price in your hand before any panel comes off.
Phoenix isn’t like other markets. Our crews work in attics that hit 150°F by June. We seal ducts that have been pulling Sonoran Desert caliche dust through cracked mastic since the last haboob rolled through - and that’s why Phoenix Dryer Vent Cleaning matters here too. And we’re seeing the same pattern in new-build communities from Queen Creek to Surprise - production homes handed over with drywall debris still inside the duct runs and builder-grade tape already failing in the attic heat. That’s why our standard visit includes a camera inspection, a written scope, and a Documented Photo Record of every run before we leave.
Why CleanRun Air Duct Cleaning Chandler Is Phoenix’s Preferred Duct Repair & Sealing Company
We’ve been serving Phoenix homeowners since 2013 with one rule: written price first, work second, documentation third. No exceptions. Tomas Reyes built CleanRun on the H.A.V.E.N. Standard after watching too many neighbors get a low-ball coupon, a shop-vac in the living room, and an invoice that tripled once the crew was inside. Our 365-Day Done Right Promise is backed in writing on every job - Haven Standard Clause 5 - not buried in a policy manual.
Our technicians are background-checked, uniformed, and identified by name before arrival. Haven Standard Clause 3: Verified Crews. We carry professional-grade equipment from Nikro, Abatement Technologies, and Honeywell - brands you can look up before you agree to anything. Every Phoenix job concludes with a complete photo record of every duct run, delivered as a standard deliverable, not an upsell. And if you’ve got a written estimate from another company, we’ll give you a Free Second Opinion, our number next to theirs, no charge.
Dispatch and scheduling are coordinated from our Phoenix office. Crews carry mastic, foil tape rated for 200°F, and replacement flex duct on the truck. Most Phoenix repairs are completed in a single visit.
Our Duct Repair & Sealing Services in Phoenix
Mastic Sealant Application
We apply fiber-reinforced mastic sealant to plenum joints, collar connections, and longitudinal seams - the proper repair for Phoenix attics where builder-grade foil tape dries out and fails within a single summer. Mastic remains flexible at 160°F and creates a permanent air barrier. In production homes near Signal Butte Road and across Eastmark, we’ve found tape joints pulling apart before the first anniversary. We remove the failed tape, clean the substrate, and brush on mastic to Haven Standard specifications. The result is measurable: we pressure-test before and after, and the customer sees the CFM improvement in writing.
Flex Duct Repair & Replacement
Flex duct in Phoenix’s unconditioned attics degrades faster than in any market we serve. The inner liner delaminates. The insulation compresses. The wire helix corrodes. We repair partial sections when possible and replace full runs when the damage is systemic. In older East Valley subdivisions - Mesa, Gilbert, Chandler - original late-1980s flex duct regularly sheds fiberglass strands into the airstream. Our crews carry Nikro negative-pressure extraction equipment and HEPA filtration to contain debris during replacement. Every new run is supported per SMACNA guidelines, not draped over trusses where it kinks and tears.
Metal Duct Repair
Galvanized steel trunk lines in Phoenix’s 1970s-1990s ranch homes develop seam separations and rust-through at low points where condensate collects. We patch with galvanized sheet metal and seal with mastic, or replace sections when corrosion is advanced. Metal duct holds up better than flex in our heat, but the transverse joints and takeoff collars are the failure points. We inspect with a borescope camera and show you what we found before quoting repair.
Duct Insulation & Air Leak Repair
Missing or compressed insulation in a Phoenix attic means 140°F air heating your cooled supply air before it reaches the register. We replace insulation with formaldehyde-free fiberglass wrap, sealed and taped to prevent vapor infiltration. Air leak repair targets the gaps around boots, registers, and wall penetrations that pull attic air directly into your living space. In Paradise Valley and Arcadia, we’ve measured supply temperatures 15°F warmer than design due to uninsulated duct in tile-roof attics. The fix is straightforward. The diagnostics are documented.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Phoenix
Our equipment roster includes Nikro negative-pressure extractors, Abatement Technologies HEPA filtration, and Honeywell media air cleaners - professional-grade tools we name so you can verify specifications before work starts. We stock mastic, foil tape, flex duct, and insulation materials sized for Phoenix’s common 6-inch and 8-inch residential systems. No waiting on parts from California. For homeowners in Phoenix and the surrounding communities, that means most repairs are completed same-day with materials rated for our attic temperatures.
Common Duct Repair & Sealing Problems We See in Phoenix Homes
- Builder-grade tape failure in new construction. Foil tape and unsealed collars in new Surprise and Queen Creek homes dry out within one summer of 150-160°F attic heat, opening gaps that pull haboob silica straight into the air handler. We reseal with mastic, which remains flexible at temperature.
- Construction debris in new-build ducts. Drywall dust and insulation fibers left in supply and return ducts coat the blower motor and load filters far past their MERV rating within the first cooling season. The camera shows it. The photo record proves it.
- Delaminated flex duct in 1990s East Valley homes. Original late-1980s flex duct in Mesa and Gilbert subdivisions loses its inner liner, shedding fiberglass strands into the airstream. The register shows a rust-orange caliche ring. The borescope shows the liner hanging in strips.
- Post-haboob particulate infiltration through cracked joints. After July-September dust storms, we find return plenums loaded with ultra-fine silica and Coccidioides spores. Sealed ducts keep it out. Leaky ducts recirculate it.
Pricing for Duct Repair & Sealing in Phoenix, AZ
A typical mastic sealing job for a single-zone Phoenix ranch home runs $280-$450. Flex duct repair or partial replacement runs $180-$340 per run, depending on attic accessibility and linear footage. Full metal trunk repair or custom fabrication runs $400-$680. Duct insulation replacement is priced by the linear foot, typically $12-$18 per foot for standard 6-inch flex with R-6 wrap.
What moves the number: attic temperature (summer scheduling requires earlier start times), number of zones, accessibility above vaulted ceilings, and whether the system needs negative-pressure cleaning before sealing can be performed. We quote every job in writing before work starts - Haven Standard Clause 1 - and we photograph every run before and after as part of the standard deliverable. No per-vent pricing. No teaser rates. Call (520) 464-6297 for a free estimate with an exact written number.
We Also Serve Cities Near Phoenix
Our crews work throughout the metro, including Duct Repair & Sealing in Phoenix proper plus Tempe, Paradise Valley, Mesa, and Chandler. Same written-price standard, same documented photo record, same 365-Day Done Right Promise. Dispatch is coordinated from our Phoenix office for all locations.
Serving Phoenix, AZ - Our Local Coverage Area
We’re based in the Phoenix area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Duct Repair & Sealing in Phoenix
Construction debris, including drywall dust, insulation fibers, and wood particulate, is left in roughly 80% of production-home duct systems at handover. The builder’s HVAC contractor rarely performs negative-pressure extraction before startup. Within the first cooling season, that debris coats the blower wheel, clogs the filter, and restricts airflow. We inspect with a camera, quote a written scope, and clean under HEPA filtration before sealing any joints that failed in the first summer’s heat. Call (520) 464-6297 for a free estimate.
That ring is Sonoran Desert caliche particulate, a mineral signature unique to our basin. It means your attic duct run has cracked or separated at a joint, pulling unfiltered attic air into the supply stream during and after haboob events. We read that ring as a positive diagnostic marker. Our techs verify with a borescope, seal the breach with mastic, and clean the system under negative pressure. The ring doesn’t return if the seal holds. Call (520) 464-6297 and we’ll confirm the source.
Yes, and likely flex duct replacement as well. Original flex duct from that era has reached end of service life in Phoenix’s attic heat. The inner liner delaminates. The insulation compresses. Air leaks develop at every joint. We pressure-test the system, show you the CFM loss in writing, and quote repair or replacement with a documented photo record. Most 1990s Phoenix ranches we inspect leak 25-40% of conditioned air into the attic. Call (520) 464-6297 for testing and a written scope.
Valley Fever is caused by Coccidioides fungal spores endemic to the Sonoran Desert. During haboob season, those spores enter return-air plenums through leaky duct joints and register gaps, then recirculate through the living space. Maricopa County reports the highest Valley Fever rates in the continental US. A sealed duct system, maintained with intact mastic joints and proper filtration, is a genuine exposure-reduction measure. We document seal integrity with pressure testing. Call (520) 464-6297 for an inspection.
Phoenix systems accumulate particulate faster than any major metro we serve. Our A/C runs 10-12 months annually, moving as much air in 18 months as a Chicago system does in five years. Add haboob infiltration through leaky joints, and we recommend inspection every two to three years for sealed systems, annually for systems with known leaks or recent construction. The photo record from each visit shows accumulation rate over time. Call (520) 464-6297 to schedule.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Phoenix since 2013.