Fast, Reliable Blown-In Insulation Across Austin
Blown-in insulation in Austin typically runs $1,800-$4,500 for a standard attic top-up or full replacement, with most jobs completed in a single day. We’re Envelope Insulation Co., and our Austin office dispatches crews daily to homes from Allandale to East Austin, Hyde Park to the tech-boom subdivisions off MoPac. Call (737) 259-8352 and a live person answers - no voicemail, no callback queue measured in business days. We bring a written price before any work starts, and we leave with a Documented Photo Record plus before-and-after blower-door numbers when air sealing is part of the scope.
Why Topside Attic Insulation Pflugerville Is Austin’s Preferred Blown-In Insulation Company
We’ve sealed and insulated over 9,000 homes since 2016, every one with a written price before a tool lifted and a documented record when the crew left. In Austin specifically, that volume includes hundreds of option-period calls - the frantic 10-day window after an ECAD audit flags attic deficiencies during a home sale. Buyers in Crestview, sellers in Allandale, investors in East Austin - they all get the same Haven Standard workflow: flat price, written scope, written warranty before anyone starts.
Our response time to Austin addresses averages same-day or next-morning availability for standard blown-in work, and we carry stock from Owens Corning, Johns Manville, Knauf, and GreenFiber so we’re not waiting on a distributor run from Dallas. The 365-Day Done Right Promise applies here exactly as it does everywhere else we work - if it’s not done right, we make it right, and the proof is in the documentation you walk away with, not in how hard we smile.
Background-checked, uniformed technicians. A text when your named technician is en route. And a Free Second Opinion on any written estimate from another contractor - bring us the competing quote and we’ll read it with you, line by line.
Our Blown-In Insulation Services in Austin
Blown-In Cellulose
We specify GreenFiber cellulose for Austin’s older bungalows - the material packs tighter into irregular joist bays and around the top plates that leak in every 1950s ranch we’ve tested. Cellulose runs $2.20-$3.10 per square foot installed in the Austin market, with most Allandale and Crestview attics falling in the $2,400-$3,800 range for a full R-49 treatment after air sealing. The treated borate content resists the fire ants that colonize Austin attics with depressing regularity.
Blown-In Fiberglass
Owens Corning fiberglass is our default for open attic floors in newer construction - the 1980s-2000s tech-boom tracts that were built to a far more permissive energy code than what Austin enforces today. It blows fast, settles predictably, and pairs with dense-pack work when we’re treating the full envelope. Expect $1.80-$2.80 per square foot for fiberglass in Austin’s standard 1,800-2,400 square foot homes. We never blow it over an unsealed attic floor. That’s not an upsell. It’s the order of operations.
Dense-Pack Wall Insulation
Austin’s 1940s-60s bungalows in Hyde Park and North Loop were built with empty stud cavities - no insulation at all - and the flippers who renovate them rarely open walls. Dense-pack cellulose, blown through drilled access holes at 3.5 pounds per cubic foot, fills those cavities without gutting the drywall. This is the service we quote most often during ECAD option periods, because the audit report flags uninsulated walls as aggressively as it flags attic R-value. Wall dense-pack in Austin runs $3.50-$5.00 per square foot of wall area, and it’s the difference between a buyer closing with a concession and a buyer walking.
Blown-In Top-Up
The most common call we get in Austin is also the most misunderstood. A top-up - blowing new material over existing - only works if what’s underneath isn’t a compacted mat. In Crestview last month, we opened an attic where 1960s fiberglass had settled to an effective R-8, and the homeowner had already received a quote from another contractor to “just blow more on top.” We don’t do that. We photograph the existing layer, measure its depth and density, and quote either a full removal and replacement or a conditioned-attic conversion if the ductwork is sweating in 140°F summer heat. Top-up pricing in Austin starts around $1,200 for small attics with viable existing insulation, but most honest assessments land closer to $2,800-$4,200 once we see what’s actually up there.
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.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Austin
We source from Owens Corning, Johns Manville, Knauf, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in, no house brand pushed for margin. For Austin customers, that means we match material to condition rather than selling what’s in the warehouse. GreenFiber cellulose for dense-pack in Hyde Park bungalows. Owens Corning fiberglass for open attics in Circle C Ranch. CertainTeed’s higher-density blown fiberglass when we’re chasing R-60 in a conditioned attic. Stock sits at our Austin dispatch office, so we’re not waiting on a Dallas transfer when your option period is ticking.
Common Blown-In Insulation Problems We See in Austin Homes
- Settled original fiberglass in pre-1970s homes. The 1940s-60s bungalows across Allandale, Crestview, and Hyde Park were blown with loose fiberglass at R-19 or R-30 nominal. Sixty years later, it’s a compacted mat at R-8 effective. We see this on every ECAD audit that flags “insulation below standard.” The fix is never a top-up. It’s removal, air sealing, and full replacement.
- Flipper insulation - fresh finishes, old attic. East Austin’s rapid renovation cycle means thousands of homes got shiplap, quartz, and staged furniture while the attic stayed untouched. We opened a 2019 flip on Comal Street where the ECAD report flagged R-11. The investor had spent $80,000 on cosmetics and zero on the envelope. The buyer used our quote to negotiate $4,200 off closing.
- Attic ducts cooking in 140°F summer heat. Austin’s attic cavities exceed 140°F from June through September, and virtually every HVAC system in this city routes ductwork through that unconditioned space. Blown-in on the floor doesn’t touch radiant load on the ducts. Homeowners call expecting a temperature drop that only conditioning the attic - roof-deck spray foam - can deliver. We tell them before we quote.
- Post-Uri cold retention gaps. Winter Storm Uri exposed that Austin’s housing stock was engineered entirely around shedding heat. A house insulated correctly for July still leaks in February. Blown-in without air sealing at top plates, can lights, and penetrations leaks both ways. We seal first, then insulate - in that order, every time.
Pricing for Blown-In Insulation in Austin, TX
Most blown-in attic jobs in Austin run $1,800-$4,500, with wall dense-pack adding $2,500-$5,500 depending on cavity access and square footage. Here’s how that breaks down for the homes we see:
| Service | Typical Austin Range | What Drives the Number |
|---|---|---|
| Blown-in fiberglass top-up (viable existing) | $1,200-$2,400 | Attic square footage, access difficulty |
| Blown-in fiberglass full replacement | $2,200-$3,800 | Removal labor, air sealing scope, R-value target |
| Blown-in cellulose full treatment | $2,400-$4,200 | Material density, borate treatment, attic prep |
| Dense-pack wall insulation | $3.50-$5.00/sq ft wall | Cavity depth, interior vs exterior access, repair work |
| Conditioned attic conversion (spray foam) | $6,500-$12,000 | Roof deck area, foam thickness, HVAC relocation |
What moves you up or down within these ranges: attic access (hatch vs. pull-down vs. cut new), whether existing material needs removal, and whether we’re air sealing top plates and can lights before blowing. Every quote includes a Written Price Before Any Work Starts - Haven Standard Clause 1 - and a Free Second Opinion if you’ve already got another estimate in hand. Call (737) 259-8352 for a written price on your specific home.
We Also Serve Cities Near Austin
Our Blown-In Insulation crews work daily in Pflugerville, Cedar Park, Manor, and Round Rock - same dispatch from our Austin office, same written price protocol, same documented closeout. ECAD doesn’t apply in those jurisdictions, so the workflow shifts from option-period urgency to owner-driven retrofit, but the sequencing doesn’t change: seal first, insulate second, measure with a blower-door test when air sealing is in scope.
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 - Blown-In Insulation in Austin
No. The ECAD ordinance requires the audit, not the repair. The report flags deficiencies - attic R-value below current code, absent air sealing, uninsulated walls - and that information becomes a negotiation document between buyer and seller. We’ve been called into option periods where the buyer used our quote to extract a $3,000-$5,000 concession, and others where the seller hired us preemptively to clear the flag before listing. The audit doesn’t force action. It forces disclosure. Call (737) 259-8352 if you’ve got an ECAD report in hand - we’ll read it with you and give you a written price for whatever it flags.
Probably. We’ve opened dozens of East Austin flips from the 2017-2022 renovation wave, and the attic is almost always untouched beneath the new finishes. The ECAD audit catches it if the home sells, but many owners don’t discover the gap until their first summer utility bill hits $400-plus. We document what we find with photos, quote removal and replacement if the existing material is compacted, and deliver a written scope before any work starts. Bring us a competing quote and we’ll give you a Free Second Opinion.
Because blown-in insulation on the attic floor doesn’t stop radiant heat transfer from the roof deck to your ductwork. Austin attics hit 140°F+ for four months straight, and your HVAC ducts are running through that oven. Blown-in raises R-value at the floor, which helps the conditioned space below, but the ducts still lose capacity and efficiency to radiant load. The fix is conditioning the attic - spray foam on the roof deck, typically - which moves the thermal boundary to the roofline and puts the ducts inside the envelope. We quote both approaches honestly and let the numbers decide.
Allandale and Crestview bungalows get GreenFiber cellulose - the irregular joist bays, the fire ant pressure, and the need for dense-pack wall work in the same job make cellulose the logical single-material solution. 1990s tech-boom tracts, built to looser codes with regular truss spacing and open attic floors, get Owens Corning fiberglass - faster install, predictable settle, and usually no wall work needed. The material choice isn’t aesthetic. It’s matching the product to the building’s actual conditions. We specify which one we’re quoting and why, in writing, before you sign.
Yes. Uri exposed that Austin homes were engineered to shed heat, not retain it. A bungalow with R-19 in the attic and no air sealing at top plates leaks conditioned air outward in February just as it leaks inward in August. Blown-in without sealing addresses only half the problem. We still field post-Uri calls from homeowners who added insulation after 2021 and were surprised by their February gas bills - the material was right, but the air sealing was absent. Our crew seals first, then insulates, then verifies with a blower-door test. The numbers don’t lie. Call (737) 259-8352 for a written price that includes both.
Ready to see what your attic actually needs? Call (737) 259-8352. A live person answers, 24/7. We’ll schedule a site visit, photograph what we find, and deliver a Written Price Before Any Work Starts - flat, scoped, and warrantied. If you’ve already got another estimate, bring it. Our Free Second Opinion comes with no obligation and no pressure. Under Haven Standard: what you see in writing before we start is exactly what you get when we leave.
Written by Wes Okafor, Owner at Envelope Insulation Co., serving Austin since 2016.