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.
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AfterFast, Reliable Duct Repair & Sealing Across Broomfield
Duct repair and sealing in Broomfield typically runs $280-$680 for most homes, with mastic re-sealing of a standard plenum and floor-boot assembly falling in the middle of that range. Crews from our Broomfield dispatch route can usually inspect and quote within 48 hours of your call. We coordinate scheduling from our Denver office and serve Broomfield neighborhoods directly - no third-party subcontractors, no van fleets with out-of-state plates.
We’ve worked enough homes in Broadlands, Anthem Highlands, and Wildgrass to know what we’ll find before the panel comes off. If your house went up between 1995 and 2010, there’s a strong chance your plenum joints are still sealed with original foil tape that dried out sometime in the Obama administration. That tape lifted. Dust got in. Now your supply lines are lined with the gray-brown cake of Front Range prairie grit and construction debris that defines Broomfield ductwork from this era. We document everything with before-and-after photography, deliver a written price before touching a tool, and back the work under our 365-Day Done Right Promise.
Call (720) 799-2292 for a free written estimate. Estimates include camera inspection of the plenum and at least two duct runs.
Why CleanRun Air Duct Cleaning Denver Is Broomfield’s Preferred Duct Repair & Sealing Company
CleanRun has been independently owned and operated under the Haven Standard since 2013. Every one of the 52,000+ homes we’ve served received a written price before work started and a Documented Photo Record when the crew left. That standard applies to Broomfield exactly as it applies everywhere else we work.
Broomfield homeowners specifically choose us because we name real prices on the phone - Haven Standard Clause 1 - and because our crews understand the local housing stock. A technician who has re-sealed fifteen plenums in Broadlands knows the 1999 two-story layout before walking through the door. That familiarity saves time and prevents the exploratory demolition some national chains use to inflate invoices.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. Each arrives identified by name, with license number published on every proposal. The equipment roster includes Rotobrush, Nikro, and Honeywell systems - brands customers can verify independently. We do not send salespeople in technician costumes.
Response to Broomfield is direct from our Denver-coordinated route. Most inspection appointments are available within two business days. We do not promise same-day dispatch because duct repair is a scheduled trade, not an emergency service, and we won’t manufacture urgency to close a sale.
Our Duct Repair & Sealing Services in Broomfield
Duct Sealing with Mastic Sealant
Mastic sealant is the only proper repair for plenum and floor-boot joints that were originally taped with foil and never coated. In Broomfield’s 1995-2010 production builds, this describes the majority of homes we’ve inspected in Broadlands and Anthem Highlands. The mastic we apply is a water-based, fiber-reinforced compound rated for duct temperatures, brushed onto cleaned metal surfaces and allowed to skin before the system restarts. A typical mastic re-sealing of a standard plenum and four to six boot collars in Broomfield runs $340-$520. We photograph every joint before and after application; the photo record is included as a standard deliverable.
Flex Duct Repair
Long flex-duct runs spanning two floors were standard in Broomfield’s large tract homes, and twenty years of gravity and vibration have left many sagging against ceiling joists or pulling free at the collars. Flex duct repair involves re-strapping runs to proper slope, replacing damaged sections with new insulated flex, and securing connections with mechanical fasteners plus mastic - never tape alone. In Broomfield, we regularly find flex runs in Wildgrass and Anthem Highlands that were never properly supported at build, with construction debris still lodged in the low points. Repair of a single compromised flex run typically runs $180-$340; replacement of multiple runs in a multi-zone system ranges $450-$780.
Metal Duct Repair
Older metal ductwork in pre-boom Broomfield homes and some commercial conversions can suffer from corrosion at seams, impact damage from renovation work, or failed original sealants. We patch minor damage with galvanized sheet metal and mastic, replace sections where corrosion has penetrated, and re-seal entire runs when systemic failure is present. Metal duct repair in Broomfield starts around $280 for localized patching and can reach $890 for extensive re-sealing of a basement trunk line. Every repair is photographed and the scope is written before work begins.
Duct Insulation
Missing or degraded duct insulation in unconditioned spaces - attics, crawl spaces, garage chases - costs Broomfield homeowners in both energy loss and condensation risk. At 5,300 feet with Chinook-driven temperature swings, poorly insulated supply lines in attic spaces can lose 15-25% of conditioned air before it reaches the register. We install foil-faced fiberglass insulation with proper vapor barriers, sealed at all seams with mastic tape. Typical Broomfield duct insulation work runs $380-$650 depending on linear footage and access difficulty.
Air Leak Repair
Air leak repair addresses the infiltration that happens when supply-side pressure draws unconditioned attic or crawl-space air into the system through failed joints, or when return leaks bypass filtration entirely. In Broomfield, the combination of high-velocity Chinook winds and extremely low humidity means leak pathways pull in far more fine particulate than in Denver’s more sheltered urban core. We pressure-test the system, locate leaks with smoke pencil and thermal imaging, then seal with mastic or replace failed components. A standard air leak repair and re-sealing in Broomfield runs $320-$580.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Broomfield
Our equipment roster includes Rotobrush mechanical agitation systems, Nikro negative-pressure extractors, and Honeywell air-quality monitoring tools - professional-grade equipment from trade-recognized manufacturers that customers can research independently before agreeing to any work. We stock common repair consumables locally, including mastic compounds, mechanical fasteners, and flex-duct connectors in standard diameters, which means most Broomfield repairs are completed in a single visit without waiting on parts shipments. For specialized components, our Denver-coordinated supply chain typically delivers within 24 hours. We name brands because we have nothing to hide about what touches your ductwork.
Common Duct Repair & Sealing Problems We See in Broomfield Homes
- Foil-tape-only plenum joints failing after two decades. In Broadlands and Anthem Highlands, we routinely open supply plenums to find every joint still held by original foil tape - no mastic coating - with the tape dried, lifted, and dust-packed underneath. This was standard practice in Colorado’s late-1990s production-build rush, and it’s now the single most common failure mode we address in Broomfield.
- Sagging flex-duct runs dropping debris into supply lines. Long two-story flex spans in Broomfield’s boom-era homes were often strapped loosely or to inadequate support points. Gravity and vibration pull the low points below the collar connection, creating debris traps that fill with construction grit and prairie dust. The camera shows it every time.
- Chinook wind loads overwhelming return-air systems. Broomfield’s exposure to high-velocity downslope winds from the foothills drives far more dust infiltration than Denver’s sheltered core experiences. Return leaks in these conditions don’t just waste energy - they become the primary pathway for the gray-brown Front Range particulate that cakes inside supply lines.
- Floor-boot collar separation in multi-zone systems. The large two-story tract homes built across Broomfield’s master-planned communities often have four to six zones with floor boots at slab or basement level. Thermal cycling and minor foundation movement over twenty years pop these collars loose, creating visible gaps that the homeowner can sometimes feel with a hand at the register.
Pricing for Duct Repair & Sealing in Broomfield, CO
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts, and we won’t use a phone call to extract your budget before naming ours. In Broomfield’s current market, typical duct repair and sealing costs are:
| Service | Typical Range |
|---|---|
| Mastic sealant re-sealing (plenum + 4-6 boots) | $340-$520 |
| Single flex duct repair/replacement | $180-$340 |
| Multiple flex run replacement (multi-zone) | $450-$780 |
| Metal duct patching/localized repair | $280-$420 |
| Extensive metal trunk re-sealing | $620-$890 |
| Duct insulation (attic/crawl, typical home) | $380-$650 |
| Air leak detection and repair | $320-$580 |
| Full system inspection with camera documentation | $0 (free with repair) or $140 standalone |
What moves a job to the higher end: multi-zone systems with poor access, extensive construction debris requiring pre-cleaning, or repairs in finished spaces where drywall access is needed. We disclose this during the free estimate, not after the van is in your driveway. Every estimate includes the Documented Photo Record at no additional charge. Call (720) 799-2292 for your written quote.
We Also Serve Cities Near Broomfield
Our Duct Repair & Sealing crews work throughout the northern metro, including Thornton, Westminster, Arvada, and Brighton. Each city gets the same Haven Standard: written price first, photo record included, 365-Day Done Right Promise in writing. Broomfield homeowners are welcome to request references from any of these neighboring service areas.
Serving Broomfield, CO - Our Local Coverage Area
We’re based in the Broomfield 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 Broomfield
Right on time, and in some ways you’re the perfect case. The 2001 Broadlands builds are hitting their first real service window now, and the problems we find are predictable: dried foil tape at the plenum, sagging flex runs, and that gray-brown Front Range dust packed into every joint. The ductwork isn’t destroyed; it just needs proper sealing and debris extraction before the leaks get worse. Call (720) 799-2292 and we’ll inspect with camera documentation at no charge if you proceed with repair.
Because the builder used foil tape and never applied mastic sealant. In Broomfield’s 1995-2010 production boom, speed was the priority and mastic coating was routinely skipped. Tape alone dries out in 5-10 years; by year 15 it’s lifting at the edges and infiltration is constant. The proper repair is mastic application after cleaning, which is what we do on every Broomfield plenum re-sealing job. We show you the before photo so you understand why the tape failed.
Yes. At 5,300 feet with semi-arid conditions, fine soil and prairie dust stay airborne longer than in lower, wetter markets. The Chinook winds that scour the plains east of the foothills drive that dust into homes at velocities Denver’s urban core doesn’t experience. In practical terms, a leaky return in Broomfield pulls in significantly more particulate than the same leak in a more sheltered neighborhood. That makes tight sealing more consequential here, not less. Our mastic applications account for this with heavier coating at known stress points.
Three things: mastic-seal every plenum and boot joint instead of relying on foil tape; properly support flex-duct runs to prevent sagging; and perform a post-construction duct cleaning before occupancy. None of these were standard practice in Broomfield’s boom-era builds. The construction debris and drywall grit we pull from Anthem Highlands ducts was left there at handover, then compounded by two decades of infiltration through failed tape seals. We can’t change what the builder did, but we can document what’s there and fix it properly.
Worth it, and often more so than in smaller or newer homes. Long flex runs have more failure points - more collars, more support points, more linear footage for debris accumulation. In Broomfield’s two-story tracts, we’ve measured supply airflow improvements of 20-35% after proper re-sealing and flex repair, with corresponding reductions in runtime and register dust. The work pays for itself in energy savings and equipment longevity, plus you get the photo record proving what was done. For a written estimate on your specific system, call (720) 799-2292.
Call (720) 799-2292 today for a free written estimate on duct repair and sealing in Broomfield. Every estimate includes camera inspection, a documented photo record, and our 365-Day Done Right Promise - backed in writing, not just stated in marketing copy.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Denver, serving Broomfield since 2013.