Insulation in Austin, TX
Crawl space encapsulation and vapor barrier installation in Austin typically runs $3,200-$7,800 for a full encapsulation, with vapor barrier-only jobs starting around $1,800-$3,500. Most Austin homes built before 1980 on pier-and-beam foundations have open crawl spaces that trap the region’s year-round humidity, creating conditions for mold, wood rot, and elevated indoor radon levels. At Envelope Insulation Co., we treat air sealing as a hard prerequisite before any insulation goes in, and we publish before-and-after blower-door numbers on every applicable job so you can verify the performance change. Call (737) 259-7528 for a written price before any work starts.
Why Austin Homes Are Different
Austin sits at a unique intersection of climate threats that reshape how insulation contractors must work here. Our attics routinely exceed 150°F in July and August, driving cooling loads that overwhelm HVAC systems sized for milder conditions. Yet the February 2021 Winter Storm Uri exposed a catastrophic blind spot: decades of “build for heat” construction left pipes in unconditioned attics and exterior walls with almost no thermal protection when temperatures dropped below 10°F for days.
The housing stock compounds the problem. Central Austin neighborhoods like Hyde Park, Brentwood, Cherrywood, and Travis Heights are dense with 1940s-1970s pier-and-beam bungalows that have open crawl spaces, minimal original insulation, and zero air sealing. The city’s aggressive ADU ordinance has also produced thousands of garage conversions and detached backyard cottages that frequently lack code-compliant insulation, creating a retrofit market unique to Austin’s infill boom.
Then there’s Austin Energy. As a municipal utility, it operates a Green Building program that sets insulation requirements and rebate tiers above the Texas state energy code. Contractors here must navigate a compliance and incentive layer that doesn’t exist in Dallas, Houston, or San Antonio. Rebate eligibility requires specific R-values and air-leakage benchmarks verified by blower-door testing, so the documentation we deliver isn’t optional paperwork; it’s the key to recovering thousands in utility incentives.
Our Main Austin Services
Most Austin homeowners who call us start with one of these three services, each with its own dedicated Austin page for deeper detail.
Attic Insulation in Austin
Attic insulation in Austin means confronting 150°F+ summer temperatures that radiate downward through ceilings and force air conditioners into continuous operation. We typically find R-19 or less in homes built before 1990, well below current Austin Energy rebate thresholds. Our crews air-seal top plates, can lights, and penetrations before adding insulation, because blowing material over an unsealed attic floor is something we simply don’t do. Every job closes with a Documented Photo Record and, when applicable, before-and-after blower-door readings. Attic Insulation in Austin covers material options, R-value targets for rebate tiers, and what the written price includes.
Spray Foam Insulation in Austin
Spray foam insulation in Austin addresses the dual climate threat directly: open-cell foam in roof decks creates conditioned attics that eliminate the 150°F problem entirely, while closed-cell foam in exterior walls adds the thermal mass and air barrier that Uri proved was missing. We source from Icynene and Demilec, among others, with no proprietary lock-in. The Haven Standard applies here exactly as elsewhere: written price before work starts, documented record when the crew leaves. Spray Foam Insulation in Austin breaks down open-cell versus closed-cell applications, cost drivers, and rebate implications.
Blown-In Insulation in Austin
Blown-in insulation in Austin remains the most cost-effective path to code-compliant R-values for attics with adequate existing structure and no active moisture problems. We use fiberglass from Owens Corning and Johns Manville, and cellulose from GreenFiber, depending on the application and homeowner preference. The critical step most competitors skip: we blower-door test after air sealing to verify the envelope is tight before the blower truck arrives. Blown-In Insulation in Austin details density requirements, coverage calculators, and what the written price covers.
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.
Crawl Space Encapsulation & Vapor Barrier in Austin
Crawl space encapsulation and vapor barrier installation in Austin solves a problem built into the city’s housing DNA: thousands of pier-and-beam homes in Hyde Park, Cherrywood, and Brentwood have open crawl spaces that breathe Central Texas humidity directly into floor systems and indoor air. The clay soils around Austin slow drainage, so standing water after rain is common, and summer humidity stays above 70% for months. A vapor barrier alone blocks ground moisture; full encapsulation seals the entire envelope, conditions the air, and often drops indoor humidity by 15-20%. We handle Crawl Space Encapsulation & Vapor Barrier from inspection through documentation.
Crawl Space Vapor Barrier
Signs you need it
Your crawl space has standing water after rain, visible mold on floor joists, or a musty smell that rises through floor registers in summer.
What it costs in Austin
A 6-mil to 20-mil vapor barrier installed over bare earth in a typical Austin crawl space runs $1,800-$3,500, with thicker mil ratings and seam-sealing at the higher end.
How we do it
We remove debris, grade the soil for drainage, lay overlapping polyethylene sheets with sealed seams, and extend the barrier 6-12 inches up foundation walls before fastening and sealing.
Crawl Space Encapsulation
Signs you need it
Your hardwood floors cup seasonally, your HVAC ductwork in the crawl space shows condensation corrosion, or your energy bills spike despite recent attic insulation.
What it costs in Austin
Full encapsulation with sealed vapor barrier, insulated walls, conditioned air supply, and dehumidifier for a typical Austin pier-and-beam home runs $3,200-$7,800.
How we do it
We seal all vents, install a complete vapor barrier with sealed seams and wall extensions, insulate foundation walls with rigid foam, add a dehumidifier with condensate pump, and bring in conditioned air through a dedicated supply.
What Crawl Space Encapsulation & Vapor Barrier Costs in Austin
| Item | Typical range in Austin |
|---|---|
| Vapor barrier (6-20 mil, earth only) | $1,800 - $3,500 |
| Partial encapsulation (barrier + wall sealing) | $2,800 - $5,500 |
| Full encapsulation with dehumidifier | $3,200 - $7,800 |
How long does crawl space encapsulation take in Austin?
Most vapor barrier jobs finish in one day; full encapsulation with dehumidifier installation typically takes two to three days, depending on crawl space access and existing conditions. We deliver a written schedule with the written price before anyone starts.
Will encapsulation fix my musty smell?
Yes, in nearly all cases: sealing the ground moisture source and controlling humidity with a dehumidifier eliminates the conditions that produce musty odors. Call (737) 259-7528 for an inspection and written price.
Radiant Barrier Installation in Austin
Radiant barrier installation in Austin targets the single largest thermal load most local homes face: solar radiation heating attic surfaces to 150°F or more, which then radiates downward through ceilings and forces air conditioning systems into near-continuous operation during July and August. Unlike insulation, which slows conductive heat flow, radiant barriers reflect radiant heat before it enters the living space, reducing attic surface temperatures by 20-35°F and cutting cooling loads measurably. We install Radiant Barrier Installation systems designed for Austin’s specific roof geometries and ventilation patterns.
Attic Radiant Barrier
Signs you need it
Your attic exceeds 140°F in summer, your second floor stays 8-12°F warmer than the first despite adequate insulation, or your cooling costs run 40% above comparable homes.
What it costs in Austin
Radiant barrier foil stapled to rafters or laid over attic insulation in a typical Austin home runs $1,200-$2,800, with roof-deck applications at the higher end.
How we do it
We install perforated aluminum foil across rafter bottoms or truss chords, maintaining ventilation channels, and verify with infrared imaging that surface temperatures drop as specified.
Radiant Barrier Roof Deck
Signs you need it
You’re re-roofing a home with dark shingles in a sun-exposed Austin neighborhood like Zilker or Bouldin Creek, or your HVAC ducts run through an unconditioned attic.
What it costs in Austin
Radiant barrier applied directly to roof decking during re-roofing or retrofit runs $1,800-$3,500 for typical Austin roof areas, with spray-applied options at premium.
How we do it
We apply foil-faced sheathing or spray-applied radiant barrier coating to the roof deck underside, sealing seams and integrating with existing ventilation for code-compliant airflow.
What Radiant Barrier Installation Costs in Austin
| Item | Typical range in Austin |
|---|---|
| Attic radiant barrier (foil, rafter-mounted) | $1,200 - $2,800 |
| Radiant barrier roof deck application | $1,800 - $3,500 |
| Radiant barrier with attic air sealing package | $2,500 - $4,200 |
Does radiant barrier work with spray foam?
Generally no: spray foam applied to roof decks creates a conditioned attic where radiant barrier provides minimal additional benefit, so we recommend one approach or the other based on your roof geometry. Call (737) 259-7528 and we’ll walk through the math.
How much will my cooling bill drop?
Most Austin homeowners see 5-15% cooling reduction after radiant barrier alone, and 15-25% when combined with attic air sealing and insulation upgrades to current Austin Energy rebate tiers.
Insulation Removal & Replacement in Austin
Insulation removal and replacement in Austin becomes necessary when decades of Central Texas heat, humidity, and pest activity have degraded material past the point where adding new layers is practical or safe. Homes in Travis Heights and Clarksville built in the 1940s-1960s often contain compressed, contaminated, or vermiculite insulation that no longer performs and may present health hazards. We don’t blow new material over old; we remove, inspect, remediate if needed, then install to current standards with full documentation. Insulation Removal & Replacement covers our complete process.
Contaminated Insulation Removal
Signs you need it
Your attic insulation shows rodent droppings, mold staining, or urine odor; or you’ve had active roof leaks that saturated fiberglass or cellulose.
What it costs in Austin
Contaminated insulation removal with HEPA containment, disposal, and attic sanitizing in a typical Austin home runs $2,500-$5,500, with replacement additional.
How we do it
We establish negative air pressure with HEPA filtration, remove contaminated material in sealed bags, apply antimicrobial treatment to affected surfaces, and document with photos before new installation begins.
Vermiculite & Old Insulation Removal
Signs you need it
Your pre-1990 Austin home has gray, pebbly attic insulation that may contain asbestos-bearing vermiculite, or original rock wool that has settled to R-5 or less.
What it costs in Austin
Vermiculite removal with asbestos testing, abatement coordination if positive, and safe disposal runs $4,500-$9,500 depending on attic size and test results.
How we do it
We collect samples for certified lab analysis, coordinate licensed abatement if asbestos is confirmed, or proceed with standard removal if clear, always with written scope and disposal documentation.
What Insulation Removal & Replacement Costs in Austin
| Item | Typical range in Austin |
|---|---|
| Standard insulation removal (no contamination) | $1,500 - $3,200 |
| Contaminated insulation removal + sanitizing | $2,500 - $5,500 |
| Vermiculite removal with testing/abatement | $4,500 - $9,500 |
Can you remove insulation with asbestos in it?
We test first; if vermiculite contains asbestos, we coordinate with licensed abatement contractors and remain on-site to verify complete removal before we install replacement material. Call (737) 259-7528 for sampling and a written plan.
Do I have to leave during removal?
Not for standard removal, though we recommend it for comfort; for vermiculite or heavy contamination, we may request temporary relocation during active abatement, which we specify in the written scope.
Attic Air Sealing in Austin
Attic air sealing in Austin is the single most cost-effective envelope improvement for homes built before 1990, yet it’s the step most insulation contractors skip entirely. In Cherrywood and Hyde Park bungalows, we regularly measure 4,000-6,000 CFM50 on the blower door before sealing, with half that leakage passing through attic floor penetrations alone. We seal first, insulate second, always, and we publish the blower-door numbers to prove the change. Attic Air Sealing details our complete protocol.
Top Plate & Penetration Sealing
Signs you need it
Your blower door reads above 3,500 CFM50, you feel drafts from ceiling fixtures in winter, or your attic insulation shows dark staining from filtered air movement.
What it costs in Austin
Top plate and penetration sealing for a typical Austin single-story home runs $1,800-$3,500, with two-story homes and complex rooflines at higher range.
How we do it
We locate all top plate joints, wire penetrations, and plumbing stacks with blower-door-directed smoke, seal with fire-rated caulk and foam, and verify with post-sealing blower-door test.
Can Light & Duct Boot Sealing
Signs you need it
Your recessed can lights are original non-IC fixtures, your duct boots show dust blow-back at registers, or rooms farthest from the HVAC unit never reach set temperature.
What it costs in Austin
Can light sealing with fire-rated covers and duct boot sealing with mastic runs $800-$2,200 for typical Austin homes, with fixture count as main variable.
How we do it
We install fire-rated airtight covers over non-IC cans, seal duct boot-to-ceiling connections with mastic and mesh, and pressure-test ductwork if leakage is suspected.
What Attic Air Sealing Costs in Austin
| Item | Typical range in Austin |
|---|---|
| Top plate & penetration sealing | $1,800 - $3,500 |
| Can light & duct boot sealing | $800 - $2,200 |
| Complete attic air sealing package | $2,500 - $4,800 |
Will air sealing alone lower my bills?
Yes, typically 10-20% in pre-1990 Austin homes with significant leakage, though we recommend pairing with insulation upgrades to capture Austin Energy rebate tiers. Call (737) 259-7528 for a blower-door test and written price.
How do I know if my attic is leaky?
The blower-door test tells us in minutes: we pressurize your home and use smoke pencils to visualize exactly where conditioned air escapes into the attic, then photograph each location for the written scope.
Wall Insulation in Austin
Wall insulation in Austin addresses the thermal deficiency that Winter Storm Uri exposed most brutally: exterior walls in pre-1980 homes often contain no insulation whatsoever, leaving pipes and living spaces vulnerable to freeze damage that newer construction avoids. In neighborhoods like Brentwood and North Loop, we’ve opened walls to find empty stud cavities or degraded newspaper that settled decades ago. We insulate walls without full gut renovation, using techniques that minimize intrusion and maximize performance. Wall Insulation covers material selection and application methods.
Injection Foam Wall Insulation
Signs you need it
Your exterior walls feel cold to the touch in winter, your home was built before 1975 with no wall insulation, or you experienced frozen pipes in exterior walls during Uri.
What it costs in Austin
Injection foam wall insulation for a typical 1,500-square-foot Austin home runs $3,500-$7,500, with two-story homes and complex wall geometries at higher range.
How we do it
We drill 2-inch holes at stud-bay intervals, inject slow-rise foam that fills cavities without bowing drywall, patch and texture-match, and verify fill with thermal imaging.
Drill & Fill Wall Insulation
Signs you need it
Your walls have some existing insulation but it’s settled or degraded, or you need targeted insulation for a garage conversion or ADU under Austin’s ordinance.
What it costs in Austin
Drill-and-fill with dense-pack cellulose or fiberglass for partial wall areas runs $2,200-$4,800, with full-home applications scaling proportionally.
How we do it
We remove exterior siding or interior drywall minimally, drill access holes, dense-pack cellulose or fiberglass to specified density, seal penetrations, and restore finishes.
What Wall Insulation Costs in Austin
| Item | Typical range in Austin |
|---|---|
| Injection foam (full home, typical size) | $3,500 - $7,500 |
| Drill & fill dense-pack (partial or full) | $2,200 - $4,800 |
| Exterior wall insulation with siding removal | $4,500 - $9,500 |
Can you insulate walls without removing drywall?
Yes, injection foam and dense-pack cellulose both allow exterior-access drilling with minimal interior disruption, though we assess stud bay conditions first to ensure no blocking or wiring conflicts. Call (737) 259-7528 for a wall assessment and written price.
Will wall insulation prevent frozen pipes?
It significantly reduces risk by slowing heat loss through exterior walls, though we also recommend air sealing at penetrations and, for critical plumbing, trace heat as secondary protection in Austin’s now-proven freeze potential.
Attic Cleaning & Rodent Proofing in Austin
Attic cleaning and rodent proofing in Austin responds to a climate-driven problem: our mild winters and abundant oak canopy support year-round rodent activity, while summer attic temperatures drive pests toward cooler wall cavities and living spaces. In Travis Heights and Zilker, we regularly find decades of accumulated droppings, compressed trails through insulation, and entry gaps at roof/wall junctions that homeowners never inspect. We clean, sanitize, exclude, and document, because insulation performs poorly when it’s also a habitat. Attic Cleaning & Rodent Proofing details our full protocol.
Attic Sanitizing & Decontamination
Signs you need it
Your attic has visible rodent droppings, urine staining on insulation or decking, or a persistent organic odor that HVAC distribution carries throughout the home.
What it costs in Austin
Attic sanitizing and decontamination with HEPA vacuuming, antimicrobial application, and odor treatment runs $1,800-$3,800 for typical Austin attic footprints.
How we do it
We remove contaminated insulation if present, HEPA-vacuum all surfaces, apply enzyme-based antimicrobial treatment, and run ozone or hydroxyl generators before reinstalling insulation.
Rodent Proofing & Exclusion
Signs you need it
You hear scratching in walls or ceilings, find droppings in the attic annually, or have had multiple pest control treatments without permanent resolution.
What it costs in Austin
Rodent proofing with exclusion screening, gap sealing, and entry point elimination for typical Austin homes runs $1,200-$2,800, with follow-up inspection included.
How we do it
We inspect roofline, soffit, vent, and foundation interfaces with the homeowner present when possible, seal all entry points 1/4-inch or larger with rodent-proof materials, and provide photo documentation of each location.
What Attic Cleaning & Rodent Proofing Costs in Austin
| Item | Typical range in Austin |
|---|---|
| Attic sanitizing & decontamination | $1,800 - $3,800 |
| Rodent proofing & exclusion | $1,200 - $2,800 |
| Complete attic restoration (cleanout + proofing + insulation) | $4,500 - $9,500 |
How do I know if rodents are in my attic?
Listen for scratching at dawn and dusk, inspect insulation for compressed trails and droppings, and check for gnaw marks on wood or wiring; we confirm with inspection cameras and provide photo evidence. Call (737) 259-7528 for an inspection.
Will proofing keep them out permanently?
Our exclusion work carries a one-year guarantee: if rodents re-enter through locations we sealed, we return at no charge, because permanent exclusion requires materials and methods that withstand Austin’s heat, humidity, and seasonal expansion cycles.
Home Energy Audit in Austin
Home energy audit in Austin is the diagnostic foundation for every insulation decision we recommend, and it’s particularly valuable here because Austin Energy’s Green Building program requires blower-door-verified air leakage for rebate eligibility. Without the numbers, you’re guessing at priorities and potentially leaving incentives unclaimed. Our audits produce a written scope with ranked recommendations, predicted savings, and rebate pathway documentation. Home Energy Audit explains our complete assessment protocol.
Blower Door Test
Signs you need it
Your energy bills exceed comparable homes, you’re considering insulation upgrades and want rebate-qualified documentation, or you’ve never had a measured assessment of your home’s air leakage.
What it costs in Austin
A standalone blower-door test with written report runs $350-$650 in Austin, and is frequently credited toward subsequent work if Envelope performs the improvements.
How we do it
We install a calibrated blower door in an exterior doorway, depressurize to 50 Pascals, measure CFM50 leakage, and use smoke pencils and infrared cameras to locate and photograph each significant leak path.
Thermal Imaging Inspection
Signs you need it
You have persistent cold spots, suspect missing wall insulation, or need documentation of insulation completeness for Austin Energy rebate submission.
What it costs in Austin
Thermal imaging as part of a full energy audit runs $450-$850, with standalone infrared inspection for specific problem areas at $300-$550.
How we do it
We scan interior and exterior surfaces with a calibrated FLIR camera during controlled temperature differential conditions, annotate images with surface temperatures and probable causes, and include all files in the written report.
What Home Energy Audit Costs in Austin
| Item | Typical range in Austin |
|---|---|
| Blower door test with written report | $350 - $650 |
| Full energy audit (blower door + thermal + insulation inspection) | $450 - $850 |
| Comprehensive audit with duct leakage test | $650 - $1,200 |
Does an audit qualify me for Austin Energy rebates?
The audit itself doesn’t qualify you, but the blower-door and thermal documentation we provide is required for rebate submission, and our written scope specifies exactly which improvements meet each tier. Call (737) 259-7528 to schedule.
How long does the audit take?
Plan three to four hours for a full assessment; we need time for setup, testing, interior and exterior thermal scanning, and a walkthrough with you to review findings and answer questions before we leave.
Brands We Service in Austin
We source insulation materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber, with no proprietary product lock-in that limits your options. Our Austin office stocks common densities and R-values for same-week installation, and we order specialty materials with typical lead times of three to five business days. See our brands for detailed specifications and applications.
Pricing for Insulation in Austin, TX
| Service | Typical range in Austin |
|---|---|
| Crawl space vapor barrier | $1,800 - $3,500 |
| Full crawl space encapsulation | $3,200 - $7,800 |
| Attic radiant barrier | $1,200 - $2,800 |
| Radiant barrier roof deck | $1,800 - $3,500 |
| Insulation removal (standard) | $1,500 - $3,200 |
| Contaminated insulation removal | $2,500 - $5,500 |
| Vermiculite removal with abatement | $4,500 - $9,500 |
| Attic air sealing (complete) | $2,500 - $4,800 |
| Wall insulation (injection foam) | $3,500 - $7,500 |
| Attic sanitizing & decontamination | $1,800 - $3,800 |
| Rodent proofing & exclusion | $1,200 - $2,800 |
| Home energy audit (full) | $450 - $850 |
Prices in Austin trend higher for pier-and-beam homes with limited crawl space access, homes requiring containment for contaminated material, and any project needing after-hours scheduling to accommodate occupancy. Every job begins with a written price under Haven Standard Clause 1, no exceptions.
Neighborhoods We Serve in Austin
Our crews work throughout Austin’s core and inner-ring neighborhoods, with dispatch coordinated from our Austin office. Most inspections schedule within 48 hours, and emergency response for active leaks or post-storm damage is available same day when conditions permit.
- Hyde Park
- Brentwood
- Cherrywood
- Travis Heights
- Zilker
- Bouldin Creek
- North Loop
- Clarksville
Service Area - Cities Near Austin
We serve the full Austin metro and surrounding communities, with crews regularly working in Pflugerville, TX, Cedar Park, TX, Manor, TX, and Round Rock, TX. Scheduling and material coordination run from our Austin office, so response times in these areas typically match or exceed what central-Austin homeowners experience.
Serving Austin, TX - Our Local Coverage Area
We’re based in the Austin 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 About Insulation in Austin
Most attic and wall insulation upgrades don’t require permits in Austin, but crawl space encapsulation and any spray foam affecting habitable space may trigger inspection requirements; we handle permit research and submission as part of our written scope when applicable.
A live person answers our line 24/7, and we typically schedule inspections within 48 hours for standard requests; emergency situations like post-storm damage or active leaks receive same-day response when crew availability allows.
Yes, Austin Energy’s Green Building program offers tiered rebates for insulation and air sealing that exceed state code minimums, but requires blower-door verification and specific R-values; our energy audits include complete rebate pathway documentation.
Call (737) 259-7528 for a free estimate with a written price before any work starts. Under the Haven Standard, you’ll receive a flat price, written scope, and written warranty before anyone lifts a tool, plus a Documented Photo Record when the crew leaves. The 365-Day Done Right Promise applies to all completed work.
What happens when you call
- 1A real person answersNo phone trees - talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within the hour.
- 4You approve before work beginsNothing starts until you say go.
What Austin Customers Say
"The winter gas bill dropped by about a third. They had estimated a quarter, so they under-promised."
- Genevieve R."Crawl space encapsulation done properly. Photographs of the vapour barrier at every seam, and the damp smell in the hallway is gone."
- Ainsley P."They air-sealed the attic floor before insulating and showed me the blower-door number before and after. The upstairs is finally the same temperature as downstairs."
- Marisol D.