Fast, Reliable Duct Repair & Sealing Across Burnet
Duct repair and sealing in Burnet typically costs $180-$650 depending on the scope, and most jobs are completed in a single visit. We’re familiar with the ranch-style homes, manufactured housing, and lake-area properties that define Burnet’s housing stock, and we carry the parts and equipment to handle them without a return trip.
We’ve been driving out to Burnet from our Houston headquarters for years, and we know the territory. Farm-to-Market 2342, Highway 1431, the neighborhoods around Inks Lake State Park, the acreage properties off Park Road 4 - we’ve worked on ducts in all of them. Burnet’s 78611 ZIP sits in the Texas Hill Country’s cedar belt, where limestone dust and mountain cedar pollen put unique stress on HVAC systems. That local knowledge matters when we’re diagnosing why your ducts are leaking or why your indoor air quality drops every spring. If you’re seeing higher energy bills, uneven heating and cooling, or dust that never seems to settle, call us at (866) 347-2063. We’ll give you a straight answer and an upfront price before we start.
Why Bellows Air Duct & Vent Co. of Texas Is Burnet’s Preferred Duct Repair & Sealing Company
Burnet homeowners don’t have patience for callbacks. You want the job done right in one trip, especially when you’re driving 30 minutes from a lake property or managing an acreage with multiple buildings. That’s why our Duct Repair & Sealing team travels with fully stocked trucks carrying mastic sealant, flex duct sections, metal duct repair sleeves, and insulation rated for Hill Country attics.
Our reputation in Burnet is built on showing up when we say we will and fixing what we said we’d fix. We’ve served Texas homeowners for over 42 years, and our 90-Day Done Right Promise applies to every job in Burnet County - if it’s not right, we return at no charge with no paperwork required. Calls are answered by a live person 24 hours a day, not an app or voicemail. Our technicians are background-checked, uniformed, and trained on the specific duct issues common to 1970s-1990s ranch homes and manufactured housing, which make up much of Burnet’s stock.
We don’t bait you with a low coupon and then change the price at the door. The number we give you on the phone is the number on the invoice. That’s been our practice since 1984.
Our Duct Repair & Sealing Services in Burnet
Duct Sealing
Leaky ducts can waste 20-30% of your conditioned air before it reaches your rooms. In Burnet, where summer cooling loads are heavy and winter heating runs hard during cedar season, that’s money lost every month. We seal joints and connections with professional-grade mastic sealant, not the tape that dries and fails in attic heat. Our process includes a camera inspection before and after, so you see the difference. A typical duct sealing job in Burnet runs $280-$450 for a single-system home.

Flex Duct Repair
Flex duct is common in Burnet’s manufactured homes and in attic retrofits on older ranch properties. It sags, it tears at connections, and it pulls loose from registers - especially after years of vibration and temperature cycling. We repair or replace damaged flex runs with properly supported, sealed sections. For a standard flex duct repair in Burnet, expect $180-$340. We also clean the replacement section with Rotobrush equipment before installation so you’re not connecting new ductwork to old contamination.

Metal Duct Repair
The metal ductwork in Burnet’s 1970s-1980s ranch homes was built to last, but joints can separate as foundations settle on the Hill Country’s limestone and caliche soils. When metal ducts pull apart, they draw in unfiltered crawlspace or attic air loaded with limestone dust and cedar pollen. We reseat separated joints, repair corroded sections, and seal with mastic for a permanent fix. Metal duct repair in Burnet typically ranges from $220-$480 depending on accessibility and extent of damage.

Duct Insulation
Uninsulated or deteriorated duct insulation in Burnet attics leads to condensation during humid periods and heat loss during temperature swings. We install foil-faced insulation rated for the temperature extremes of Hill Country attics, sealed at all seams. Proper insulation also prevents the temperature differentials that cause flex duct to sag and fail prematurely. Duct insulation work in Burnet generally runs $250-$550.

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 Burnet
We equip our trucks with professional-grade products from Rotobrush, Honeywell, and Aprilaire - the same brands serious HVAC contractors specify for durable, long-lasting results. For Burnet customers, this means we don’t need to order parts and make you wait. Our Rotobrush cleaning systems prepare replacement duct sections before installation. Honeywell and Aprilaire air quality components integrate with sealed duct systems to maintain what we fixed. We stock mastic sealant, flex duct, insulation, and repair sleeves sized for the residential systems common in Burnet’s ranch and manufactured housing stock.
Common Duct Repair & Sealing Problems We See in Burnet Homes
- Flex duct sags and disconnects in manufactured home attics. The lightweight construction and long spans in Burnet’s mobile and manufactured housing let flex duct droop over time, creating gaps that pull in unfiltered attic air heavy with cedar pollen and limestone dust. We re-support and reseal these runs with mastic.
- Metal duct joints separate in ranch-style homes from the 1970s. Soil settling on Burnet’s thin limestone-over-caliche soils shifts foundations gradually, and that movement works metal duct joints loose. The result is dust suction from crawlspaces and inconsistent airflow to rooms.
- Lake-area vacation properties develop mold in dormant flex ducts. Homes near Inks Lake and Lake Buchanan that sit empty through winter accumulate moisture in unconditioned ductwork. When owners return and start the AC, mold spores blast through unsealed connections into living spaces. We clean, repair, and seal these systems before you move back in.
- Return-air intakes pull in extreme particulate loads during dry seasons. Burnet’s position in the Llano Uplift means fine limestone dust and cedar pollen enter duct systems at rates higher than flatland Texas cities. Sealed ducts with intact filtration are essential, not optional.
Pricing for Duct Repair & Sealing in Burnet, TX
We believe in one honest price, shown before we start. Here’s what duct repair and sealing costs in the Burnet market:
| Service | Typical Range in Burnet |
|---|---|
| Flex duct repair (single run) | $180 - $340 |
| Duct sealing (mastic, single system) | $280 - $450 |
| Metal duct repair (joint reseating, section replacement) | $220 - $480 |
| Duct insulation (attic trunk lines) | $250 - $550 |
| Full system evaluation with camera inspection | $89 - $150 |
Factors that affect your specific price: accessibility of ductwork (crawlspace vs. attic vs. chase), extent of contamination requiring cleaning before sealing, and whether we’re repairing one section or resealing an entire system. We offer $50 off any repair over $250, a free second opinion on any written estimate you’ve received, and a permanent 5% senior and veteran discount. Estimates are free. Call (866) 347-2063 and we’ll give you a firm number.
We Also Serve Cities Near Burnet
Our service area covers the full Hill Country corridor around Burnet. We regularly work in Burnet and nearby Marble Falls, Leander, Lago Vista, and Cedar Park. Same upfront pricing, same 90-Day Done Right Promise, same live-answer phone line no matter which city you’re calling from.
Serving Burnet, TX - Our Local Coverage Area
We’re based in the Burnet 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 Burnet
Schedule duct sealing before you occupy the property, ideally in late March or early April after cedar season ends. Lake homes that sat empty all winter accumulated cedar pollen and possibly mold in dormant ductwork, and starting the AC without inspection blasts those contaminants into your living space. We camera-inspect the system, clean if needed, seal all joints with mastic, and verify the results so you move into clean air. Call (866) 347-2063 to book before your first stay - estimates are free.
Your metal duct joints have likely separated due to foundation settling common on Burnet’s limestone soils. When joints pull apart, the return side creates negative pressure that draws unfiltered crawlspace or attic air directly into your system, carrying limestone dust and cedar pollen. We reseat the joints, repair any corroded sections, and seal with mastic for a permanent fix. Most metal duct repairs on 1431-area ranches run $220-$480 and are done in one visit. Call for a free evaluation.
We focus on residential duct repair and sealing for homes, not outbuildings or garage doors. If your workshop has a separate HVAC system or ductwork tied to your main house, we can evaluate and seal those ducts. Standalone structures without integrated duct systems fall outside our scope. Call (866) 347-2063 and describe the setup - we’ll tell you straight if it’s a fit.
Yes. Flex duct sagging and disconnection is one of the most common calls we get in Burnet’s manufactured housing. We re-support the runs, replace torn or collapsed sections with Rotobrush-cleaned new flex duct, and seal all connections with mastic. A typical mobile home flex duct repair in Burnet costs $180-$340. The work usually takes two to three hours, and we verify with camera inspection before we leave. Call for a free estimate.
Yes. Duct systems in unoccupied Burnet lake homes accumulate moisture, dust, and cedar pollen through the winter. When dormant, flex duct can develop mold and connections can loosen from thermal cycling. Starting the AC without inspection forces those contaminants through every room. We recommend a pre-occupancy camera inspection, cleaning if contamination is present, and sealing of any gaps or disconnected joints. The $89 seasonal tune-up covers evaluation; repairs are quoted upfront if needed. Call (866) 347-2063 to schedule before your spring return.
Ready to Get Your Burnet Ducts Sealed Right?
Leaky ducts cost you money every month and fill your home with the limestone dust and cedar pollen that define Hill Country air. We’ve fixed ducts in Burnet’s ranch homes, manufactured housing, and lake properties for years, and we bring the equipment to do it in one trip. Upfront pricing. Camera-verified results. Backed by our 90-Day Done Right Promise in writing. Call (866) 347-2063 for your free estimate today.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Burnet since 1984.