Fast, Reliable Duct Repair & Sealing Across Bastrop
Duct repair and sealing in Bastrop, TX typically costs $280–$680 for most residential jobs, and our Duct Repair & Sealing team can usually diagnose and quote the work same-day. We’re familiar with every corner of Bastrop — from the established ranch homes along FM 969 to the newer subdivisions off Highway 71 — and we make the drive from our Austin base regularly enough that Bastrop customers rarely wait more than a day or two for service. Call (833) 315-4216 to schedule a free estimate.

Bastrop isn’t a generic Central Texas town when it comes to ductwork. The 2011 Complex Fire’s ash and smoke infiltrated duct systems even in homes that survived the flames; combined with Lost Pines’ coarse, sticky loblolly pine pollen, duct repairs here must account for unique residue not found in neighboring cities. Douglas and the Nova team have spent eight years learning what Bastrop homes actually need — not what a standard checklist says.
Why Nova Air Duct Cleaning Service Austin Is Bastrop’s Preferred Duct Repair & Sealing Company
More than 1,255 homeowners have reviewed us, and that 4.9-star average reflects something specific: Douglas Ross serves as Lead Technician on jobs, meaning the person whose name is on the company is the same person sealing your ducts. We’ve worked in Bastrop’s Tahitian Village, the Colony, and along the Colorado River corridor enough times that we recognize the construction patterns before we even open the attic hatch.
Our response time to Bastrop is typically next-day or within 48 hours — faster for homes with active air quality concerns like mold odors or visible duct damage. We’ve handled enough post-fire rebuilds to know which builders rushed the duct connections in 2012–2015, and we know where the flex duct tends to sag in the older ranch homes that predate the wildfire.
Eight years focused on one trade means we don’t split attention between carpet cleaning and window washing. We clean, repair, seal, and sanitize duct systems — that’s the full scope. For Bastrop homeowners, that specialization translates to faster diagnosis and repairs that actually hold up against the humidity and pollen load this region throws at them.
Our Duct Repair & Sealing Services in Bastrop
Duct Sealing
Air leaks at joints, register boots, and plenum connections waste 20–30% of conditioned air in most Bastrop homes we’ve tested. In post-fire rebuilds from 2012–2015, hastily sealed duct connections develop gaps that undermine system efficiency and allow pollen-laden air to bypass filters entirely. We seal with mastic and fiberglass mesh — not duct tape, which degrades in Bastrop’s humidity — and we pressure-test afterward to verify the fix.
Flex Duct Repair
The pre-2011 ranch homes and rural properties common along FM 969 and near Lake Bastrop often run original flex duct that’s sagged, torn, or degraded after decades in the humid Colorado River valley air. We replace damaged runs with properly supported flex duct sized to your system’s CFM requirements, and we check the entire zone for collateral damage — one sagging run usually means others are stressed.
Metal Duct Repair
Older Bastrop homes and some commercial buildings near downtown still run galvanized steel ductwork. We repair separated seams, rust-through spots, and damaged dampers. Metal duct holds up better against the Lost Pines pollen load than flex, but when it fails, it fails at the joints — exactly where our sealing expertise matters most.
Duct Insulation
Builder-grade insulation in Bastrop’s master-planned homes often lacks proper R-value for duct runs in unconditioned attics. The Colorado River corridor keeps morning relative humidity consistently high through summer, creating conditions favorable to mold colonization inside poorly insulated duct systems. We install foil-faced fiberglass insulation or closed-cell foam wraps where appropriate, sized to prevent condensation on the duct surface.

Mastic Sealant Application
Mastic is our standard for Bastrop jobs — it flexes with temperature swings, bonds to metal and flex duct equally well, and won’t dry out like tape. We recently sealed flex duct runs in a 2014 rebuilt home in the Tahitian Village subdivision, where the builder left gaps at the register boots. Using Rotobrush agitation and mastic sealant, we sealed the air leaks and removed a gritty mix of Carrizo sand, fiberglass fibers, and pine pollen that had packed the return-side cavities.
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 Bastrop
We carry parts and materials from Honeywell, Aprilaire, and Guardsman — brands that hold up in Bastrop’s conditions. Our professional-grade Rotobrush and Nikro equipment handles the aggressive cleaning that Bastrop’s post-fire and post-construction residue demands. When we need a specific damper, register boot, or insulation wrap for a Bastrop job, we source it fast rather than making you wait for a second trip. Douglas stocks common flex duct diameters, mastic compound, and foil tape on every service vehicle.
Common Duct Repair & Sealing Problems We See in Bastrop Homes
- Post-fire rebuild duct gaps. Homes rebuilt in the 2012–2015 rush often have duct connections that were sealed hastily or left with gaps. We regularly find return-side cavities packed with a gritty mix of Carrizo sand dust, pink fiberglass fibers, and pine pollen — a combination that points directly to the chaotic reconstruction period and requires more aggressive negative-pressure passes than typical new construction.
- Mold in uninsulated flex duct. The Colorado River corridor’s high morning humidity through summer creates condensation inside poorly insulated duct runs, especially in the older flex-duct systems common on pre-2011 Bastrop properties. We find mold staining at the low points where sagging duct traps moisture.
- Filter bypass from loblolly pollen. The Lost Pines loblolly pine pollen is coarser and stickier than Austin’s cedar and oak pollen. It clogs standard filters faster, forces air around compromised filter racks, and packs return ducts with material that standard vacuums won’t dislodge.
- Smart thermostat misreads from pressure imbalance. Smart-opener upgrades and Wi-Fi thermostats fail to calibrate properly when ductwork leaks cause pressure imbalances — a common issue in new Bastrop subdivisions where builder-grade sealing wasn’t pressure-tested.
Pricing for Duct Repair & Sealing in Bastrop, TX
| Service | Typical Range in Bastrop |
|---|---|
| Duct sealing (mastic, up to 10 joints) | $280–$420 |
| Flex duct repair/replacement (per run) | $180–$340 |
| Metal duct seam repair | $220–$380 |
| Duct insulation upgrade (per run) | $160–$290 |
| Full system sealing with pressure test | $480–$680 |
What moves Bastrop jobs toward the higher end: multiple flex duct runs needing replacement, extensive post-fire or post-construction debris removal requiring extra cleaning passes, and hard-to-access attic layouts common in the older ranch homes near the Colorado River. What keeps costs down: localized sealing at accessible joints, single-run repairs, and systems that have been maintained regularly. We quote upfront after inspection — no open-ended billing. Call (833) 315-4216 for an exact quote; estimates are free.
We Also Serve Cities Near Bastrop
We regularly run service calls to Camp Swift, Elgin, Manor, and Hornsby Bend — the same drive that brings us to Bastrop covers these communities too. If you’re in a rural property off Highway 71 or in one of the developing subdivisions near the Travis-Bastrop county line, we likely already have a truck in your area this week.
Serving Bastrop, TX — Our Local Coverage Area
We’re based in the Bastrop 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 Bastrop
Even homes that survived the flames often have ash and smoke residue in duct systems, combined with construction debris from post-fire renovations or neighboring rebuilds. We inspect for this specifically in Bastrop homes and adjust our cleaning and sealing approach to remove fire-related particulates before sealing — otherwise you’re trapping contaminants in the system. Call (833) 315-4216 if your home dates from this era; we’ll check what you’re dealing with.
Yes — the loblolly pine pollen is coarser and stickier than standard Central Texas pollen, and it finds its way through gaps that finer particles wouldn’t exploit. We use mastic sealant at all joints (not tape) and verify with pressure testing, because this pollen will exploit any weakness in your duct envelope. Homes near the Lost Pines stand itself, particularly in the 78602 zip, see the heaviest loads.
Absolutely — builder-grade insulation in master-planned homes often lacks proper R-value for Bastrop’s humid summers, and we’ve added insulation to homes in newer subdivisions off Highway 71 where condensation was already forming on duct surfaces. We typically install foil-faced fiberglass or closed-cell wraps, depending on attic access and existing duct condition.
The 2012–2015 rebuild period was high-volume and fast-paced; many Bastrop homes from this era have duct connections that were sealed hastily or not pressure-tested at all. We’ve found gaps at register boots, loose plenum connections, and unsealed return cavities in rebuilt homes across Tahitian Village and similar subdivisions — it’s a pattern we recognize immediately. The good news: proper mastic sealing fixes it permanently.
Yes — duct leaks create pressure imbalances that cause temperature stratification and false readings at the thermostat location. In Bastrop’s newer subdivisions, we’ve seen smart thermostats misread by 3–5 degrees until the duct system was properly sealed. Once pressure balance is restored, your thermostat gets accurate data and your HVAC system cycles more efficiently.
Written by Douglas Ross, Owner at Nova Air Duct Cleaning Service Austin, serving Bastrop and the greater Austin area since 2016.