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 Englewood
Most duct repair and sealing jobs in Englewood run $340-$890 for standard residential work, with full duct-board replacement in older homes reaching $1,200-$2,400. CleanRun crews are dispatched from our Denver office and typically arrive in Englewood neighborhoods within 45 minutes of the scheduled window. Call (719) 259-4520 for a written estimate before any work begins.
We’ve worked in Englewood since 2013, and the housing stock here tells a specific story. The blocks west of South Broadway, the ranch homes near Belleview Park, and the older neighborhoods threading toward the South Platte River floodplain all carry forced-air duct systems installed during the city’s post-WWII boom. That matters because 60-year-old duct-board lining doesn’t fail the way new flex duct does, and the repair decision is different when an insurer is involved.
Why CleanRun Air Duct Cleaning Parker Is Englewood’s Preferred Duct Repair & Sealing Company
Our Duct Repair & Sealing team has documented every job in Englewood with before-and-after photos since our first year. That practice started because homeowners here asked to see what was actually inside their ducts, not take our word for it. The photo record is now standard on every visit, delivered as part of the job documentation.
Englewood customers have left us reviews mentioning specific details: the technician who found a collapsed return duct under a 1962 ranch on East Bates Avenue, the crew that documented moisture damage for a flood claim near the South Platte, the written price that matched the final invoice on a full duct-board replacement off South Logan Street. We don’t quote a range and then invoice higher. Haven Standard Clause 1 requires a written price before any panel comes off, every time.
Calls are answered by a live person, 24/7, and our technicians are background-checked, uniformed, and identified by name before arrival. Haven Standard Clause 3: Verified Crews. Dispatch and scheduling are coordinated from our Denver office, with crews serving Englewood locally.
Our Duct Repair & Sealing Services in Englewood
Duct Sealing
Englewood’s 1950s-1960s ranch homes were built with mastic-sealed joints that have dried, cracked, or been disturbed by decades of vibration and temperature swing. We test static pressure at the air handler and use a smoke pencil or theatrical fog to locate leaks in the duct runs, then reseal with modern mastic rated for Colorado’s temperature extremes. Sealing a typical Englewood ranch system runs $340-$620.
Flex Duct Repair
Newer construction around CityCenter Englewood and infill developments use flex duct, which collapses, tears, or disconnects at the collar. We replace damaged sections with new insulated flex, support it properly to prevent sagging, and seal the collar with mastic and mechanical fasteners. Flex duct repair in Englewood typically costs $180-$450 per run.
Metal Duct Repair
The original sheet-metal duct runs in Englewood’s mid-century homes often outlast their interior lining but develop rust holes, separated seams, or crushed sections from decades of maintenance work in crawlspaces. We patch or replace metal sections, restore proper slope for condensate drainage, and seal with mastic. Metal duct repair runs $280-$740 depending on accessibility and extent.
Duct Insulation
Condensation on uninsulated or degraded ductwork is a recurring issue in Englewood homes with crawlspace or basement runs, particularly near the South Platte River floodplain where groundwater is higher. We install new fiberglass duct wrap with vapor barrier, sealed at all seams, to prevent moisture accumulation that leads to mold. Duct insulation in Englewood runs $420-$890 for a typical system.
Mastic Sealant
We apply mastic sealant, a thick, fiber-reinforced paste that remains flexible after curing, to all joints and seams in new and repaired ductwork. Unlike foil tape, which degrades, mastic creates a permanent seal that holds through Colorado’s freeze-thaw cycles. This is specified work on every Englewood repair we perform.
Air Leak Repair
Return air leaks in Englewood’s older homes often pull attic dust, crawlspace moisture, or combustion gases into the system. We pressure-test the return side, locate leaks with smoke testing, and repair with sealed sheet-metal patches or replacement sections. Return leak repair typically runs $260-$580.
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.
BeforeAfterTrusted Brands We Service in Englewood
CleanRun crews carry professional-grade equipment from Nikro, Honeywell, and Abatement Technologies on every Englewood job. We stock common duct-board, flex duct, and mastic products locally so repairs aren’t delayed waiting for parts. Our negative-pressure HEPA extraction systems are manufactured by Nikro, and our moisture meters and airflow measurement tools come from Abatement Technologies. Customers can verify these brands independently, and we name them because the equipment matters as much as the technician operating it.
Common Duct Repair & Sealing Problems We See in Englewood Homes
- Original 1950s duct-board lining west of South Broadway absorbs flood moisture and molds from the inside. Cleaning alone won’t fix it. The saturated section has to be cut out and replaced with sealed sheet-metal and new mastic. We document moisture readings and photo evidence for insurance.
- Post-storm, homeowners seal over wet mastic joints that never cured after water intrusion. The trapped moisture spreads mold through supply and return ducts. We remove the failed sealant, dry the joint, and reapply mastic only after confirming moisture content is below 16%.
- Prairie dust and wildfire smoke infiltrate failing return-duct seams. Englewood’s position in the South Platte valley at 5,380 feet exposes homes to high-particulate winds and summer smoke from Front Range and Western Slope fires. A patch job on a 60-year-old sheet-metal run often hides a collapsed interior rather than repairing it.
- Disconnected flex duct in newer Englewood infill homes creates conditioned air loss into attics or crawlspaces. The homeowner sees high utility bills and uneven temperatures; we find the disconnected collar with a camera and restore the connection with mechanical fasteners and mastic.
Pricing for Duct Repair & Sealing in Englewood, CO
| Service | Typical Range in Englewood |
|---|---|
| Duct sealing (whole system) | $340-$620 |
| Flex duct repair (per run) | $180-$450 |
| Metal duct repair | $280-$740 |
| Duct insulation | $420-$890 |
| Duct-board replacement (per section) | $480-$1,100 |
| Full duct-board replacement (typical ranch) | $1,200-$2,400 |
These ranges reflect Englewood’s housing stock: older homes with tighter crawlspaces take longer, and duct-board replacement requires more material than simple sealing. Every job starts with a written price before any work begins, per Haven Standard Clause 1. No per-vent pricing, no add-ons after the truck arrives. Bring a competitor’s written estimate and we’ll provide a Free Second Opinion at no cost.
We Also Serve Cities Near Englewood
CleanRun crews work throughout the metro area, including Englewood and nearby Littleton, Lone Tree, Denver, and Aurora. Each city’s housing stock and climate exposure create different duct failure patterns, and we adjust our approach accordingly.
Serving Englewood, CO - Our Local Coverage Area
We’re based in the Englewood 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 Englewood
If the duct-board lining is saturated, it must be replaced. Cleaning removes surface debris but cannot extract water from fiberglass duct board or kill mold that has rooted in the porous material. We use a borescope camera to inspect the lining, take moisture readings with a calibrated meter, and document the findings with photos. If moisture content exceeds 16% or visible mold is present, we specify replacement and provide the documentation package for your insurer. Call (719) 259-4520 for a camera inspection and written scope.
Those blocks sit closer to the South Platte River floodplain with a history of periodic moisture intrusion, while Littleton and Greenwood Village sit at higher elevation with better drainage and drier soil conditions. The combination of 60-year-old duct-board lining and higher groundwater exposure creates conditions where mold establishes inside the duct runs themselves, not just on surrounding surfaces. We find this pattern consistently in ranch homes between South Broadway and the river, far less often in the elevated neighborhoods to the south.
Yes, when the documentation includes dated photos, moisture readings, and a written scope specifying why replacement is necessary rather than cleaning. We were called to a 1958 ranch just west of South Broadway after a sump failure soaked the crawlspace, and a camera inspection of the supply and return ducts showed standing water in a low run of original fiberglass duct board with mold already blooming on the lining. We set up negative pressure with HEPA filtration at the air handler, pulled the saturated duct-board section, replaced it with sealed sheet-metal and new mastic, and logged moisture readings and before/after photos for the homeowner’s insurer. A week later the system held static pressure and the adjuster accepted the documentation without a second visit. Every Englewood job includes this level of documentation as standard.
We pressure-test the system and use a smoke pencil at each joint. A failed mastic joint shows smoke drawn in at the seam but solid duct walls; a failed duct run shows smoke penetration through deteriorated duct-board or rusted metal. The camera confirms: joint failures look like gaps at connections, while duct-run failures show crumbling interior lining or holes in the metal. The repair is different. Joints get resealed. Runs get patched or replaced. We show you the camera footage and explain which we’re proposing before quoting.
Low humidity causes mastic to cure faster and can shrink duct-board over decades, creating gaps that don’t occur in more humid climates. Wildfire smoke, increasingly common in June through September, pulls fine combustion particles into leaks in the return side, where they deposit on duct walls and accelerate degradation of fiberglass lining. Proper sealing with modern mastic rated for dry climates, combined with intact duct-board or metal, is the specific defense. We specify materials and document the seal with pressure tests on every Englewood job. Call (719) 259-4520 for a system evaluation and written price.
CleanRun serves Englewood with documented, accountable duct repair and sealing. Every job includes a written price before work starts, a 365-Day Done Right Promise backed in writing, and a complete photo record of every duct run before and after. No exceptions. Call (719) 259-4520 to schedule your free estimate.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Englewood since 2013.