Insulation Services in South Austin, TX
If your South Austin home is running your AC ragged all summer — or your floors felt like ice during the February 2021 freeze — there’s a good chance your insulation is the culprit, not your HVAC system. Super Green Insulation Austin has been working in South Austin neighborhoods since 2010, and we know the specific quirks these homes throw at homeowners. Call us today at (866) 434-2901 and we can typically have a crew on-site within 24–48 hours. We’re ready when you are.
Why South Austin Homeowners Choose Super Green Insulation Austin
Tom Hopkins has led our team for over 16 years, and a meaningful portion of our 784 verified reviews — averaging 4.9 out of 5 stars — come from South Austin homeowners who found us after a neighbor recommended us on Nextdoor or spotted our trucks parked in Bouldin Creek or Travis Heights. That word-of-mouth reputation didn’t happen by accident.
We don’t dispatch generic crews who have to look up the zip code. Our installers are familiar with the pier-and-beam bungalows along South Congress and the slab-on-grade ranch homes farther south in 78745 and 78748. When Tom or a senior project lead walks your property, they already have a mental map of what they’re likely to find — and that saves you time, guesswork, and money. We carry materials on every truck so assessments rarely require a second trip before work begins.
Insulation Services We Offer in South Austin
Insulation Installation
Whether we’re retrofitting a 1950s bungalow in Zilker with open-cell spray foam from Icynene or dense-packing wall cavities with GreenFiber cellulose in a Travis Heights renovation, we match the right product to the right application. We also install Owens Corning and Johns Manville fiberglass batts, Knauf blown-in insulation, and rigid foam board — because no single material solves every South Austin scenario.
Learn more about our Insulation Installation in South Austin.
Attic & Crawl Space Restoration
Settled, moisture-damaged, or pest-contaminated insulation doesn’t just underperform — it can degrade indoor air quality and hide structural problems. In South Austin’s older homes, we routinely pull out original fiberglass batts that have collapsed to R-7 or less, remediate any mold or moisture damage, and reinstall to current Texas Energy Code minimums (R-38 attic, R-13 underfloor). Crawl space restoration on pier-and-beam homes is a specialty here; we install ground vapor barriers, rigid foam board between floor joists, and — where moisture is aggressive — closed-cell spray foam from Demilec or Icynene for a sealed underfloor envelope.
Learn more about our Attic & Crawl Space Restoration in South Austin.
Moisture & Radiant Barriers
South Austin’s position on the humid coastal-plain side of the Balcones Escarpment makes vapor management genuinely critical — place a vapor retarder on the wrong side of the assembly and you’ll trap moisture inside your wall or ceiling cavity. We install CertainTeed MemBrain smart vapor retarders, foil-faced radiant barriers on attic rafters, and Rockwool mineral wool where fire-resistance and moisture tolerance both matter. A properly installed radiant barrier can reduce attic temperatures by 20–30°F, which translates directly to lower cooling loads.
Learn more about our Moisture & Radiant Barriers in South Austin.
Neighborhoods We Serve in South Austin
Our crews cover the full South Austin footprint on a daily basis — from the dense inner neighborhoods to the quieter outer edges. Most of our South Austin jobs are scheduled within 1–2 business days of the initial call. The neighborhoods below represent our most active service areas, but if your address falls in the 78704, 78741, 78744, 78745, 78747, or 78748 zip codes, we serve you.
- Bouldin Creek
- Travis Heights & SoCo Corridor
- Zilker
- Slaughter Creek
- South Congress (SoCo) Area
Why South Austin’s Climate & Housing Make Insulation More Complicated Here
South Austin’s 78704 corridor — Bouldin Creek, Travis Heights, and Zilker — is unlike almost anywhere else in the Austin metro. This stretch is densely packed with 1940s–1960s pier-and-beam bungalows that were built with hollow wall cavities, no vapor barriers, and open dirt crawl spaces. When we work these blocks, we’re addressing three thermal envelopes at once: the attic, the exterior walls, and the underfloor. That’s a scope you almost never encounter in the slab-on-grade subdivisions of North or Northwest Austin, and it requires a genuinely different approach from installers who know what they’re looking at.
The crawl spaces in Bouldin Creek and Travis Heights are particularly unforgiving. Most sit only 18–24 inches off grade with bare soil below and no floor insulation above. In July, radiant heat from that exposed ground bakes up through hardwood floors. In a hard freeze — and Winter Storm Uri proved this point violently — that same open crawl space lets pipe temperatures drop to match outdoor ambient air. Our crews keep both open-cell spray foam and rigid foam board on the truck when working these neighborhoods, because the underfloor envelope almost always needs attention before we even pull the attic hatch.
Farther south, in 78745 and 78748, the housing stock shifts to 1970s–1990s slab-on-grade ranches where the primary issue is shallow attic depth and original fiberglass batts that have settled to a fraction of their rated R-value. South Austin also sits on the more humid, lower-elevation side of the Balcones Escarpment, meaning attic temperatures regularly exceed 140°F in summer while ambient humidity raises the stakes on every vapor-management decision we make.
Pricing for Insulation in South Austin
South Austin insulation projects vary widely because the housing stock itself varies so much. Here are honest ranges based on what we actually quote in this market:
- Attic insulation (blown-in or batt): $1.50–$3.00 per square foot, depending on current R-value, accessibility, and whether removal is needed first.
- Crawl space encapsulation & floor insulation (pier-and-beam): $3,500–$8,500 for a typical South Austin bungalow, depending on square footage, ground cover, and moisture conditions.
- Wall cavity dense-pack (retrofit): $1.80–$3.50 per square foot — common on 78704 renovations where walls are open or drill-and-fill is feasible.
- Radiant barrier installation: $0.75–$1.50 per square foot of attic floor area.
We provide itemized written quotes before any work begins. Call (866) 434-2901 or request a free assessment online.
Service Area — Cities Near South Austin
Super Green Insulation Austin serves the broader metro well beyond South Austin. If you’re in Downtown & Central Austin, East Austin, North Central Austin, Northwest Austin, Southwest Austin, West Lake Hills, Del Valle, or McNeil (Pflugerville Area), we have a dedicated page and crews ready for your project.
Serving South Austin, TX — Our Local Coverage Area
We’re based in the South 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 South Austin
Most do not. Homes built in the 78704 zip code between 1940 and 1965 were typically constructed with empty 2×4 stud cavities and no wall insulation whatsoever — a standard practice of that era. When we open walls during Bouldin Creek or Travis Heights renovations, hollow cavities are the rule, not the exception. Dense-pack cellulose or drill-and-fill spray foam are the most practical retrofits without a full gut renovation.
Closed-cell spray foam is often the best choice for the underfloor of a South Austin pier-and-beam home because it simultaneously air-seals, insulates, and acts as a class-II vapor retarder — which matters enormously given the humidity levels on this side of the Balcones Escarpment. That said, we evaluate every crawl space individually; some situations call for rigid foam board between joists paired with a ground vapor barrier, which can be more cost-effective for larger footprints.
Uri was a brutal diagnostic for South Austin’s older housing stock. The pier-and-beam homes in 78704 — particularly those with open crawl spaces — saw pipe bursts at rates far higher than slab-on-grade homes in the same zip codes. Since 2021, demand for underfloor insulation and crawl space encapsulation in South Austin has roughly doubled, and Tom Hopkins and our team have completed hundreds of post-Uri retrofits across Zilker, Travis Heights, and the SoCo corridor specifically.
Texas Energy Code (aligned with IECC 2021) requires R-38 minimum in attic assemblies for Climate Zone 2, which covers South Austin. Many homes in 78745 and 78748 that we assess have original insulation testing out between R-11 and R-19 — well short of that threshold. If you’re pulling a renovation permit in the City of Austin, bringing insulation up to code is typically required as part of the permitted scope.
A straightforward attic insulation job on a single-story South Austin ranch home usually takes one day. A full three-envelope retrofit on a pier-and-beam bungalow — attic, walls, and crawl space — typically runs two to three days depending on square footage and material dry times for spray foam. We schedule most South Austin projects within 1–2 business days of the assessment, and we don’t leave a job half-finished.
Written by the team at Super Green Insulation Austin, serving South Austin since 2010.