Duct Repair & Sealing in Aurora - Tested First, Written Price Second

Trusted Duct Repair & Sealing for Aurora Homeowners

Duct repair and sealing in Aurora typically costs $280-$890 depending on whether you’re sealing accessible leaks in a basement or repairing collapsed flex duct in an attic crawl space - see how much Duct Repair & Sealing costs for a full breakdown. Most jobs take 2-4 hours and are scheduled within 3-5 business days, with the written price delivered before any work begins. Call (720) 513-5159 for a free estimate with no obligation.

Call (720) 513-5159

We’ve been working in Aurora homes since 2013, and the pattern is consistent: new construction in Tollgate Crossing and Saddle Rock Ranch with flex duct that sagged before the drywall was even painted. If you’re looking for our Duct Repair & Sealing in Aurora, we cover all these neighborhoods and more. Older ranches near Hoffman Heights with original galvanized metal ductwork that’s rusting at the seams. Townhomes in Southlands where the builder used the cheapest mastic available and it’s cracking after five freeze-thaw cycles. Every job starts the same way - a technician with a name and a background check arrives in a CleanRun uniform, inspects the full system with a borescope camera, and delivers a written price before touching a single panel. That price is backed by Haven Standard Clause 1: No-Hassle Upfront Pricing. The work is backed by the 365-Day Done Right Promise, also in writing. And every duct run is photographed before and after, so you can see what was actually done instead of taking anyone’s word for it.

What Our Duct Repair & Sealing Service Includes

Duct Sealing

Duct sealing closes the gaps and seams where conditioned air escapes into your walls, attic, or crawl space - the spaces you pay to heat and cool but never live in. In Aurora, we see this most often in homes built between 2005 and 2018, where builders met code minimums with tape that degrades and mastic that shrinks. Our crews use professional-grade sealants applied under negative pressure to verify the seal, and we photograph every joint before and after so you can compare. A typical duct sealing job in Aurora runs $340-$620 for a single system, with the exact scope written before work starts.

Flex Duct Repair

Flex duct - the ribbed, insulated tubing common in Colorado tract homes - collapses, tears, or disconnects at the collar when attic temperatures swing from 20°F to 140°F through the year. In Aurora’s newer neighborhoods like Reunion and Painted Prairie, we’ve found flex duct that was never properly supported, creating sag points where debris collects and airflow dies. We also offer Duct Repair & Sealing in Commerce City for similar issues in nearby new construction. We repair or replace damaged sections with properly sized flex duct, install permanent support straps per manufacturer spec, and document the repair with before-and-after photos from our borescope. Flex duct repair in Aurora typically costs $180-$450 per run depending on accessibility.

Metal Duct Repair

Metal ductwork - galvanized steel or aluminum - lasts longer than flex but rusts at seams, separates at joints, and vibrates loose over decades. We work on original metal duct in Aurora’s older neighborhoods near Colfax and Havana, where 1960s ranch homes still have the same trunk lines running through unfinished basements. Our technicians spot-weld or replace rusted sections, reseal joints with high-temperature mastic, and test static pressure before signing off. Metal duct repair ranges from $220 for a localized seam fix to $780 for trunk line replacement, always with a written price first.

Duct Insulation

Duct insulation wraps your metal or flex duct in a thermal barrier so the 55°F air from your evaporator coil doesn’t warm to 70°F before it reaches your master bedroom in August. In Aurora, where attic temperatures exceed 130°F in July, uninsulated or degraded duct insulation can waste 20-30% of cooling capacity. We install foil-faced fiberglass insulation with proper vapor barriers, sealed at every seam, and we photograph the full wrap so you can verify coverage. Duct insulation in Aurora typically runs $4.50-$7.20 per linear foot, with total job pricing written before any material is ordered.

Mastic Sealant Application

Mastic is a thick, water-based sealant brushed or sprayed onto duct joints - superior to foil tape for longevity but only when applied to a clean surface at the right thickness. We remove old, cracked mastic entirely rather than painting over it, degrease the metal, and apply new mastic to a specified wet film thickness that we verify during the job. In Aurora’s dry climate, improper mastic application leads to cracking within 18 months; our application method, documented in your photo record, is designed for Colorado’s expansion and contraction cycles. Mastic sealing as a standalone service runs $280-$520.

Air Leak Repair

Air leak repair targets the specific points where your duct system loses pressure - boots pulled away from drywall, return air pathways leaking into wall cavities, supply registers with gaps behind the trim. We pressurize the system and use a smoke pencil or thermal camera to locate leaks that don’t show up in a visual inspection. In Aurora homes with finished basements, we’ve found return leaks pulling fiberglass insulation into the air stream; in two-story homes near Murphy Creek, we’ve traced master bedroom temperature complaints to a single disconnected boot in the attic. Air leak repair is priced per location, typically $150-$380, with every finding photographed and every repair documented.

Brands We Service for Duct Repair & Sealing

We’ve worked on duct systems connected to Honeywell air cleaners and zoning panels in Aurora homes since 2013. The Honeywell F100 and F200 media air cleaners integrate directly with the return duct, and when those cabinets leak or the gaskets degrade, we repair the duct-to-equipment seal and verify it under pressure. We stock replacement gaskets for common Honeywell configurations and photograph the interface before and after any adjustment.

Aprilaire whole-home humidifiers and dehumidifiers mount to the supply or return plenum - the large box where air collects before distribution - and those cutouts are a common leak point in Aurora homes. We’ve repaired hundreds of Aprilaire plenum integrations, from the 600 series humidifiers common in Dry Creek to the larger 1850 dehumidifiers installed in finished basements near Tallyn’s Reach. Whether your system includes Honeywell, Aprilaire, or any other make, we can inspect the full duct-to-equipment interface, document what we find, and deliver a written repair price before any work begins.

Before

After

Signs You Need Duct Repair & Sealing Right Now

• Uneven temperatures room to room. If your upstairs bedroom runs 8°F warmer than the thermostat setting while the basement is frigid, you’re not experiencing normal Colorado temperature stratification - you’re losing conditioned air through leaks or blockages in the duct runs. We map airflow at every register with a digital anemometer to locate the failure point.
• Dust that returns within days of cleaning. Aurora’s Front Range dust is real, but if you’re wiping surfaces clean on Monday and finding gray film by Wednesday, your return duct may be pulling air from an attic, crawl space, or wall cavity instead of from your living space. We inspect return pathways with a borescope camera and photograph any breaches.
• Utility bills that climbed without rate increases. Xcel Energy’s rates are public and trackable; if your per-kWh cost stayed flat but your summer cooling bill jumped 30%, your duct system is likely leaking conditioned air into unconditioned spaces. We measure duct leakage with a pressure pan test and show you the CFM loss in writing.
• Whistling, rattling, or whooshing from vents. These sounds indicate pressure imbalances - a disconnected duct, an oversized return, or a collapsed flex section forcing air through a restricted opening. In Aurora’s newer homes, we’ve traced whistling to builder-grade registers never properly sealed to the drywall. We locate the source and photograph the repair.
• Visible mold or moisture near registers. Condensation on duct surfaces in humid summer months, or mold staining on ceiling drywall around supply boots, signals that warm attic air is meeting cold duct surfaces at a leak point. This is a genuine health and structural concern in Colorado’s variable climate, and we treat it as such - with containment, repair, and documentation.

Our Duct Repair & Sealing Process - Step by Step

1. 1
   Scheduled arrival with named, verified technician. Haven Standard Clause 3: Verified Crews means you receive the technician’s name and photo before arrival, and they arrive in a CleanRun uniform with a background check on file. No subcontractors, no unmarked vans. The technician reviews your concerns, then begins the inspection.
2. 2
   Full-system inspection with borescope photography. We access every duct run we can reach - supply and return, trunk and branch - and photograph the interior condition with a 720p borescope camera. In Aurora homes with finished basements, this may include removing access panels; in homes with crawl spaces, we inspect from below. Every image is saved to your job record.
3. 3
   Pressure testing and leak location. We seal the registers and pressurize the duct system to measure total leakage against the conditioned square footage. For homes over 2,500 square feet in Aurora, we also use a thermal camera to locate leaks in wall cavities and attic spaces that don’t show up in a standard test. The findings are documented with photos and written notes.
4. 4
   Written scope and price delivered before work. Haven Standard Clause 1: No-Hassle Upfront Pricing means you receive a single-page scope with line-item pricing for each repair, the total, and the 365-Day Done Right Promise in writing. No verbal estimates, no “we’ll see how it goes,” no pressure to decide on the spot. You approve in writing or we leave with no charge for the inspection.
5. 5
   Repair, test, and document. Approved work proceeds with the technician who inspected your system - not a different crew. We repair using professional-grade materials, test static pressure and airflow after completion, and photograph every repaired duct run. Your photo record, written invoice, and warranty documentation are delivered before we leave. The 365-Day Done Right Promise begins at that moment.

How Much Does Duct Repair & Sealing Cost in Aurora?

Duct Repair & Sealing Near Aurora - Our Service Area

CleanRun serves homeowners across the Denver metro area from our Aurora base. We regularly schedule Duct Repair & Sealing in Denver for historic homes in Park Hill and new construction in Stapleton with the same documentation standards we apply in Aurora. Duct Repair & Sealing in Centennial covers the newer developments south of Arapahoe Road where builder-grade flex duct is reaching its first failure points. We also work in Stonegate, Greenwood Village, Glendale, Parker, Cherry Hills Village, Lone Tree, Commerce City, Derby, and Englewood - typically scheduling within 3-5 business days, with emergency repair available for genuine safety hazards like carbon monoxide risks from return leaks near combustion appliances.

Frequently Asked Questions - Duct Repair & Sealing in Aurora

Schedule Your Duct Repair & Sealing Service in Aurora Today

Call (720) 513-5159 to speak with a live person, 24/7, and schedule your free estimate. You’ll receive a named, background-checked technician in a CleanRun uniform, a full inspection with borescope photography, and a written price before any work begins. Every job includes the documented photo record and the 365-Day Done Right Promise in writing. No per-vent pricing. No bait-and-switch. Just documented work you can verify.

Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Aurora since 2013.