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.
Fast, Reliable Duct Repair & Sealing Across Glendale
Duct repair and sealing in Glendale typically costs $280-$780 for most apartment building jobs, with written quotes delivered before any panel comes off. We dispatch crews from our Denver office to Glendale daily, and we know the difference between a single-family basement job and the shared air-handler closets that dominate this half-square-mile enclave. Call (720) 513-5159 for a free estimate with a written price.
Our Duct Repair & Sealing team has worked the apartment corridors off South Colorado Boulevard, the complexes near Cherry Creek Drive, and the mid-rise buildings packed between Mississippi and Virginia Avenues. We understand restricted parking, property-manager approval chains, and the reality of scheduling around tenant occupancy. That local fluency means we don’t waste a building manager’s time with questions we should already know the answer to.
Why CleanRun Air Duct Cleaning Aurora Is Glendale’s Preferred Duct Repair & Sealing Company
We’ve served Glendale since adding it to our Denver-metro route structure in our early years, and the pattern is consistent: property managers call us back because we document what we find, photograph every run, and deliver a written scope before touching a tool. The 365-Day Done Right Promise applies to every Glendale job, backed in writing, not as a verbal assurance that disappears with the technician.
Our crews are background-checked, uniformed, and identified by name before arrival, per Haven Standard Clause 3: Verified Crews. Dispatch and scheduling are coordinated from our Denver office, with crews serving Glendale locally. We carry professional-grade equipment from Rotobrush, Nikro, and Honeywell, and we name those brands so property managers and homeowners can verify specifications independently.
Every job concludes with a Documented Photo Record, included as standard. Not as an upsell. Not as a “report.” The actual before-and-after images of every duct run, delivered as part of the job record.
Our Duct Repair & Sealing Services in Glendale

Duct Sealing with Mastic Sealant
In Glendale’s 1960s-1980s apartment buildings, the original metal ductwork in shared air-handler closets cracks at collars and seams after decades of tenant turnover. We seal these with mastic sealant and reinforcing mesh, not tape that will peel under continuous Front Range heating and cooling cycling. The mastic remains flexible, fills irregular gaps, and is rated for the temperature swings these shared systems endure. We apply it after negative-pressure extraction clears the surface, so the sealant bonds to metal, not to the grit coating that Colorado Boulevard traffic has deposited inside.

Flex Duct Repair
Early flexible ductwork in Glendale’s mid-century complexes tears at connection collars, sags between supports, and gets crushed by decades of maintenance traffic in cramped closets. Our flex duct repair replaces damaged sections with properly supported new flex, re-clamps collars with mechanical fasteners, and restores the original duct diameter so airflow isn’t choked. On a 1960s apartment block off South Colorado Boulevard, our tech traced a chronic dust complaint to the return side: decades-old flex duct in a shared air handler closet had torn at the collar, and the property manager had cycled hundreds of tenant turnovers through it without a camera inspection. We ran negative pressure on the trunk, used agitation tools on the metal runs, sealed the tears with mastic and mesh, re-taped and re-clamped the collars, and swapped the register boots that were leaking into the corridor. The building’s HEPA filtration and MERV rating were bumped on the shared unit so the repaired seams would hold up under continuous Front Range heating and cooling cycling.

Metal Duct Repair
Original galvanized steel duct in Glendale’s older buildings corrodes at seams, separates at drive cleats, and develops whistle leaks that waste conditioned air into plenum spaces. We repair with sheet metal patches, sealed welds where accessible, and transition pieces that restore structural integrity. In multi-unit buildings, a single compromised metal trunk line can pressurize wall cavities and force air into units that aren’t even calling for it. We find those leaks with smoke pencils and pressure testing, not guesswork.

Air Leak Repair
Air leak repair in Glendale requires understanding how a single damaged flex run in one unit’s closet leaks into the neighbor’s supply and return ducts below. A single-unit repair looks fine on the register, but the loss is happening two floors up. We pressure-test entire zones, trace leak paths, and seal at the source. Colorado Boulevard adjacency pulls road particulates and exhaust into fresh-air intakes, loading filters and coating duct interiors with fine grit that hides small leaks during a quick walkthrough and defeats a MERV rating never sized for that load. Our leak repair includes intake inspection and filter-rating recommendations.

Duct Insulation
Glendale’s semi-arid climate and 5,300-foot elevation mean temperature differentials across duct surfaces are extreme. Uninsulated or degraded duct wrap in shared mechanical spaces loses efficiency and creates condensation points in summer. We replace insulation with vapor-barrier-wrapped fiberglass or closed-cell foam where space allows, sealed at all penetrations.

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 Glendale
We carry and install components from Honeywell, Rotobrush, and Guardsman, with parts stocked for common Glendale building configurations. Honeywell media air cleaners and electronic air cleaners integrate with shared air handlers in multi-unit buildings. Rotobrush agitation tools clean duct interiors before we seal them. Guardsman access panels and hardware fit the restricted spaces of Glendale’s older mechanical closets. We name these brands so you can verify specifications before agreeing to a price. No proprietary black-box equipment, no claims we can’t document.
Common Duct Repair & Sealing Problems We See in Glendale Homes

- Shared vertical chases and stacked dryer lint pathways. A damaged flex run in one unit’s closet leaks into the neighbor’s supply and return ducts below. The symptom shows up as dust or odor complaints two floors removed from the actual failure. We trace these with camera inspection and pressure testing, then seal at the source rather than treating symptoms.
- Aging original metal and early flex duct cracking at collars and seams. After decades of tenant turnover in Glendale’s 1960s-1980s buildings, property managers often approve only a patch. We document the full condition with photos, present a written scope with options, and let the decision-maker choose based on evidence rather than our recommendation alone.
- Colorado Boulevard intake contamination loading systems beyond design. Fresh-air intakes on buildings adjacent to South Colorado Boulevard pull decades of vehicle exhaust and road particulates. This fine grit coats duct interiors, accelerates filter loading, and masks small leaks that would be obvious in cleaner systems. We clean before we seal, and we size filtration to the actual contamination load.
- Parking-constrained equipment access delaying scheduled work. Glendale’s dense footprint means our crews arrive with compact, professional-grade equipment that fits tight loading docks and service corridors. We coordinate with property managers for access times that minimize tenant disruption.
Pricing for Duct Repair & Sealing in Glendale, CO
A typical flex duct repair in a Glendale apartment unit runs $280-$450. Full mastic sealing of a shared air-handler closet with multiple metal trunk lines: $520-$780. Air leak detection and targeted sealing across a multi-unit zone: $340-$620. Duct insulation replacement in a mechanical room: $180-$340 per run. These are whole-system prices, not per-vent teases that balloon once the truck is on site.
What moves the number: accessibility (rooftop units versus basement closets), contamination level requiring pre-seal cleaning, and whether we’re matching an existing system or upgrading filtration. Every quote is written, itemized, and agreed before work starts. Haven Standard Clause 1. No exceptions.
Free estimates. Free Second Opinion on any competitor’s written quote. We put our number next to theirs, in writing.
We Also Serve Cities Near Glendale

Our crews work Glendale daily and also serve Aurora, Denver, Centennial, and Stonegate from the same Denver-coordinated dispatch. Each city gets the same written-price, photo-documented standard, with local knowledge applied to local conditions.
Serving Glendale, CO - Our Local Coverage Area
We’re based in the Glendale 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 Glendale

Yes. We zone the work by isolating sections with temporary dampers, so most units stay online while we repair one zone. In buildings with redundant air handlers, we coordinate with the property manager to stage the work across separate systems. Call (720) 513-5159 to discuss your building’s specific mechanical configuration.
Your building’s fresh-air intake sits directly adjacent to South Colorado Boulevard, pulling in decades of vehicle exhaust and road grit that suburban homes with setback yards never see. At 5,300 feet in semi-arid conditions, that particulate stays suspended longer and loads your filters faster. The shared air handler also cycles more intensively than a single-family system, compressing the timeline between cleanings. We address this with intake filtration upgrades after sealing the leaks that let that contamination bypass your filter entirely.
Both, and they connect. A damaged or disconnected flex duct in a shared chase leaks lint and moisture into the wall cavity, which then contaminates adjacent HVAC ductwork. We inspect the full stack with camera equipment, repair the duct separation, and clear the lint accumulation. The repair prevents recurrence; the cleaning addresses what’s already there. We quote both in writing before starting.
Yes. Our negative-pressure extraction, agitation methods, and post-cleaning verification meet NADCA ACR standards. For sealing specifically, we document seal integrity with pressure testing after mastic application, and we photograph every sealed joint for the job record. The 365-Day Done Right Promise covers seal performance; if a seam opens, we return and reseal at no charge.
It depends on the condition we find. If the flex is torn at collars, sagging between supports, or crushed, sealing alone won’t restore airflow. We camera-inspect, show you the actual condition, and quote both options: targeted repair with sealing where viable, full replacement where the duct is structurally failed. The written price covers whichever scope you choose. No pressure toward the higher option; the photo record shows what we saw.
Call (720) 513-5159 for a free estimate. You’ll get a written price before any work starts, a Documented Photo Record of every duct run, and the 365-Day Done Right Promise in writing. Tomas Reyes and the team at CleanRun Air Duct Cleaning Aurora have operated under the Haven Standard since 2013, with 52,000+ homes served, every one with a written price before work started and a documented photo record when the crew left.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Aurora, serving Glendale since adding it to our metro route structure in our early years.




Before
After
Before
After