Fast, Reliable Duct Repair & Sealing Across Addison
Duct repair and sealing in Addison, TX typically runs $180-$650 depending on whether we’re patching a single flex duct joint or resealing an entire apartment unit’s system, and most jobs are completed in a single visit. If you’re smelling cooking odors from nearby restaurants, feeling weak airflow from your vents, or watching your energy bills climb, separated duct joints and failed mastic are likely the cause. Call (866) 347-2063 for a free estimate - we’ll show you exactly what’s wrong with our camera before we lift a single tool.
We’ve been driving to Addison since 1984, and we know the difference between a quick patch and a repair that actually holds. The apartment complexes along Belt Line Road, the condos near Addison Circle, and the townhomes off Midway Road each present their own access challenges - tight utility closets, rooftop units with limited parking for our van, and building management protocols that require same-day coordination. Our technicians carry the right equipment for these spaces, and our office answers live 24 hours a day, so you’re never waiting on a callback when your building manager needs a repair scheduled before the weekend.
Why Bellows Air Duct & Vent Co. of Texas Is Addison’s Preferred Duct Repair & Sealing Company
Addison property managers call us back because we show up when we say we will. We’ve repaired duct systems in buildings from the 1970s slabs near Arapaho Road to the newer mixed-use developments along the Dallas North Tollway, and we understand how frustrating it is to schedule access with tenants, coordinate with maintenance staff, and still have the job done wrong. Our 90-Day Done Right Promise means if the seal fails or the odor returns, we come back at no charge - no paperwork, no arguing. That’s been our standard for over 42 years.
Our customers in Addison leave reviews mentioning the same things: Wade Kellerman’s team explains the camera footage before starting, the price on the phone matches the invoice, and the technicians wear uniforms and treat the property respectfully. We’re not the cheapest option in Dallas County, and we don’t try to be. We’re the company you call once, then forget about because the repair holds.
Response time to Addison is typically same-day or next-morning, depending on when you call. Our trucks carry Rotobrush equipment, Nikro HEPA vacuums, and professional-grade mastic and sealants, so we’re not making a supply run while your tenants wait. Background-checked, uniformed technicians on every job, every time.
Our Duct Repair & Sealing Services in Addison
Duct Sealing & Air Leak Repair
Leaky ducts waste 20-30% of conditioned air before it reaches your vents, and in Addison’s climate that’s money disappearing into your attic or wall cavities every month from May through October. We pressurize the system and use smoke testing to find every leak, then seal with mastic or metal-backed tape depending on the duct material. In Addison’s older apartment buildings near Belt Line Road, we often find return-air leaks pulling in unfiltered air from greasy ceiling plenums - a problem that drives up energy costs and circulates odors through every connected unit.
Flex Duct Repair
Flex duct is common in Addison’s apartment stock from the 1980s and 1990s, and it’s where we do most of our repair work. The plastic liner sags over time, especially in Texas heat, and the wire helix can kink or collapse in tight attic spaces. Worse, the grease-laden particulates from Addison’s restaurant corridor degrade the adhesive at joints and reduce the bond of repair tape. We don’t just reconnect separated sections - we solvent-clean the surfaces first, install proper supports to prevent future sagging, and verify airflow balance before we leave. A typical flex duct repair in Addison runs $180-$340.
Metal Duct Repair
Older apartment towers and some commercial conversions in Addison still use galvanized metal ductwork. Seams loosen from thermal expansion after decades of cycling, and original installer tape turns brittle and falls away. We reseal with mastic and mechanical fasteners, or fabricate replacement sections when corrosion has eaten through the metal. Metal duct repair in Addison typically costs $280-$550 depending on accessibility and the extent of replacement needed.
Mastic Sealant Application
Mastic is our preferred sealant for permanent repairs in Addison’s conditions - it remains flexible, handles temperature swings, and won’t degrade from the airborne particulate load that characterizes this market. We apply it with brushes and trowels to ensure complete coverage at every joint and seam. Critical for Addison: mastic applied over greasy duct surfaces without proper cleaning will fail within months. We take the time to degrease first. Mastic sealing work ranges from $220 for spot repairs to $650 for full system resealing in a typical Addison apartment unit.
Duct Insulation
When flex duct insulation has compressed or moisture has degraded the vapor barrier, we replace with new wrapped duct or add external insulation where appropriate. This matters in Addison’s spring storm seasons, when humidity spikes and condensate forms on cool duct surfaces in unconditioned spaces. Proper insulation prevents mold colonization and keeps delivered air at the temperature your thermostat expects. Duct insulation work in Addison generally runs $300-$580.
What happens when you call
- 1
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.
Trusted Brands We Service in Addison
We repair and seal duct systems connected to HVAC equipment from Honeywell, Aprilaire, and other major manufacturers, and we stock common flex duct, fittings, and sealants so Addison customers aren’t waiting on parts orders. Our Rotobrush and Nikro equipment lets us access tight spaces and document the work with camera footage you can review. For property management companies overseeing multiple Addison buildings, we maintain equipment logs by address so you know exactly when each unit was serviced and what was found.
Common Duct Repair & Sealing Problems We See in Addison Homes
- Grease-degraded flex duct joints. The adhesive and mechanical connectors at flex duct joints fail prematurely when coated with the thin greasy film our technicians find in apartments near Belt Line Road. Standard repair tape won’t bond to this surface without solvent preparation first.
- Mastic sealant failure from improper prep. Previous repairs by other contractors sometimes fail within a season because mastic was applied directly over contaminated duct walls. We remove the old material, clean with degreasing solvent, and reapply for a bond that lasts.
- Metal duct seam leaks in aging apartment towers. Original construction used economy-grade tape that degrades from heat cycling and airborne particulates. We find these leaks with pressure testing, then reseal with mastic and mechanical fasteners for permanent repair.
- Moisture-damaged flex duct from humidity infiltration. North Texas spring storms push humidity into attic and ceiling spaces where degraded vapor barriers allow condensation inside duct insulation. The duct sags, airflow drops, and mold risk rises. We replace damaged sections and restore proper insulation.
Pricing for Duct Repair & Sealing in Addison, TX
We’re transparent about pricing because we’ve seen what bait-and-switch looks like, and we don’t operate that way. Here’s what duct repair and sealing costs in the Addison market:
| Service | Typical Range in Addison |
|---|---|
| Single flex duct joint repair | $180 - $260 |
| Multiple flex duct section replacement | $280 - $450 |
| Metal duct seam resealing (spot) | $220 - $340 |
| Full mastic sealant application (typical apartment unit) | $420 - $650 |
| Duct insulation replacement | $300 - $580 |
| Air leak detection and sealing | $260 - $480 |
Factors that affect your specific price: accessibility (crawl space versus open attic), extent of contamination requiring cleaning before sealing, and whether we’re coordinating with building management for multi-unit access. We disclose the full price before starting - the number on the phone is the number on the invoice. Ask about our $50 Off Any Repair Over $250, or our Free Second Opinion if you’ve received another estimate. Senior and veteran discounts of 5% apply permanently.
We Also Serve Cities Near Addison
Our Duct Repair & Sealing in Addison team regularly travels to Carrollton, Farmers Branch, University Park, and Richardson for property management accounts and homeowner requests. Same standards apply: camera inspection, upfront pricing, and our 90-Day Done Right Promise in writing. If your building or home is near the Addison border, we’ll confirm coverage when you call.
Serving Addison, TX - Our Local Coverage Area
We’re based in the Addison 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 Addison
The grease-laden particulates from over 170 restaurants in Addison’s 4-square-mile core create a contamination film that prevents standard duct tape and unprepped mastic from bonding properly. We solvent-clean all surfaces and use professional-grade mastic formulated for contaminated environments, then verify adhesion before closing the repair. Call (866) 347-2063 for a free estimate - we’ll show you the camera footage of what we’re dealing with.
Tight utility closets, limited parking for service vehicles, and building security protocols mean we coordinate carefully with property management and arrive with compact, professional-grade equipment designed for these constraints. Most Addison apartment repairs are completed in a single visit without return trips. We’ll be there when we say.
Yes, if the odor is entering through leaks in your return-air ductwork or plenum connections - which is the pattern we see near Belt Line Road. Sealing those pathways stops the infiltration at the source. We verify with camera inspection and pressure testing, not guesswork. Call (866) 347-2063 and we’ll diagnose whether duct sealing or additional filtration is the right solution.
Not without proper preparation - sealing over grease guarantees failure within months and can trap contaminants against the duct wall. We clean first, then seal. This is standard procedure for our Duct Repair & Sealing work in Addison’s restaurant corridor, and it’s why our repairs last.
A properly cleaned and sealed flex duct joint or metal seam should last 10-15 years in normal conditions, but Addison’s combination of high annual HVAC runtime, periodic humidity spikes, and unique grease contamination means we recommend inspection every 5-7 years in affected buildings. Our 90-Day Done Right Promise covers the immediate repair, and we document every job so you know when to schedule follow-up.
Ready to stop losing conditioned air and smelling your neighbor’s dinner? Call (866) 347-2063 for a free estimate on duct repair and sealing in Addison. We’ll show you the camera footage, give you one honest price before we start, and stand behind the work for 90 days - no paperwork, no arguing.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Addison since 1984.