Fast, Reliable Attic Insulation Across Live Oak
Most attic insulation upgrades in Live Oak run $2,200-$4,800 depending on square footage and whether we’re topping up existing material or starting from an empty cavity. Our crews are dispatched from the San Antonio office and typically reach Live Oak homes within 45 minutes of the scheduled window. We’ve worked the same 1960s-1980s brick-veneer neighborhoods near Joint Base San Antonio-Randolph for years, and we know the shallow attic cavities and original R-11 batts that are standard issue in this housing stock. Call (830) 402-5240 for a written price before any work starts.
Why Topside Attic Insulation Schertz Is Live Oak’s Preferred Attic Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a significant cluster of those jobs sits in Live Oak’s older subdivisions off Pat Booker Road and around the Universal City line. Our reviews from Live Oak customers consistently mention two things: the crew showed up when promised, and the before-and-after blower-door numbers were printed on the invoice.
Response time to Live Oak averages under an hour because our San Antonio dispatch coordinates crews already working northeast Bexar County. We don’t ask you to wait for a callback window measured in business days. A live person answers the phone 24/7.
Our local knowledge runs deeper than GPS. We know which Live Oak subdivisions were built in which phase of Randolph AFB expansion, what attic access hatches were cut too small for modern equipment, and where the original slab construction leaves zero crawl space to hide ductwork. That familiarity saves time on every job.
Our Attic Insulation Services in Live Oak

Blown-In Attic Insulation
Blown-in attic insulation is the workhorse upgrade for Live Oak’s 1960s-1980s homes. We remove the collapsed original R-11 batts, air-seal top plates and can lights, install baffles at the soffits to prevent wind-washing, then blow GreenFiber cellulose or Owens Corning fiberglass to the full R-38 depth that CPS Energy recommends. The material fills irregular cavities and covers the duct chases that batt insulation always misses. A typical Live Oak single-story runs $2,400-$3,800 for complete removal and replacement.

Attic Batt Insulation
Batt insulation still has a place in Live Oak, mainly in new additions or where the attic has been converted to conditioned storage and we need precise placement between rafters. We source Johns Manville batts when the job calls for them. In the original 1970s tract homes, though, batts are almost always the problem we’re removing, not the solution we’re installing.

Attic Insulation Top-Up
If your existing insulation is in decent shape but compressed below R-19, a top-up can get you to R-38 without the cost of full removal. We see this less often in Live Oak’s oldest homes, where the original material has simply disintegrated, but it’s common in 1980s builds near the Selma line where the insulation was slightly better to begin with. A top-up in Live Oak typically costs $1,400-$2,200. We still air-seal accessible penetrations first; blowing new material over leaky top plates is something we won’t do.

Attic Insulation Replacement
Full replacement is the standard call in Live Oak. The original R-11 to R-13 batts have sagged, compressed, or been disturbed by rodents and decades of 150°F heat. We vacuum out the old material, inspect and seal the envelope, then install new insulation to full depth. Replacement jobs in Live Oak run $2,800-$4,800 for most single-story homes. Every replacement includes our Documented Photo Record and, on applicable jobs, before-and-after blower-door readings.

Attic Baffles & Ventilation Prep
Live Oak’s shallow attic cavities make ventilation prep especially critical. Without baffles at the soffit vents, blown insulation blocks intake airflow and the attic overheats. Without proper vent chutes, the new R-38 performs like R-19. We install baffles as standard on every blown-in job, not as an upsell. This is part of our air-sealing-first protocol.

What happens when you call
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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 Live Oak
We install materials from Owens Corning, Johns Manville, Knauf, and GreenFiber, among others. We don’t push proprietary products or lock you into a single brand. For Live Oak’s climate, we often recommend GreenFiber cellulose for its density and air-resistance in shallow cavities, or Owens Corning fiberglass where moisture history suggests a synthetic material. We stock both locally, so there’s no delay waiting on a distributor run. The brand choice is yours; the performance spec is ours.
Common Attic Insulation Problems We See in Live Oak Homes

- Collapsed original batts leaving top plates exposed. The R-11 to R-13 batts installed in Live Oak’s 1960s-1980s homes compress and sag after decades of 150°F+ attic heat. By the time we open the hatch, the top plate and duct chases are effectively uninsulated, and conditioned air leaks straight into the attic.
- Duct systems routed through superheated attic cavities. In Live Oak’s slab-built single-stories, the HVAC ducts run through the same attic that hits 150°F in July. The AC works harder and harder while the real problem, the unsealed, underinsulated envelope, goes unaddressed.
- Wind-washed insulation at soffit vents. Without baffles, blown insulation gets pushed away from the eaves by incoming air, creating bare strips where the ceiling meets the exterior wall. The attic overheats and the insulation underperforms its rated R-value.
- Blocked soffit intake from previous DIY or contractor work. We’ve found Live Oak attics where blown material was packed tight against the soffits, choking off ventilation and trapping moisture. The fix is always the same: remove the blockage, install baffles, then reinstall to proper depth.
Pricing for Attic Insulation in Live Oak, TX
A typical complete attic insulation replacement in a Live Oak single-story home runs $2,800-$4,800. Attic insulation top-ups, where existing material is viable, run $1,400-$2,200. Blown-in attic insulation for new construction or fully gutted attics ranges $2,200-$3,800. Attic baffles and ventilation prep add $300-$600 when done as a standalone service, but they’re included in our standard blown-in package.
What moves the number: square footage, accessibility (some Live Oak attic hatches are 16 inches square), whether we’re removing old material, and whether the attic needs rodent cleanup before we start. Every job gets a written price before any work starts, under Haven Standard Clause 1. We also offer a Free Second Opinion on any written estimate from another contractor. Call (830) 402-5240 for your exact number.
We Also Serve Cities Near Live Oak

Our crews work northeast Bexar County and northern Guadalupe County regularly, including Live Oak, Schertz, Cibolo, Universal City, and Selma. If you’re in one of these neighboring communities and your home shares the same 1960s-1980s vintage, the same pricing structure and the same air-sealing-first protocol apply. Our Attic Insulation team coordinates dispatch from San Antonio to keep response times short across the whole service area.
Serving Live Oak, TX - Our Local Coverage Area
We’re based in the Live Oak 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 - Attic Insulation in Live Oak

Your ducts are likely running through a 150°F attic with R-11 insulation and unsealed top plates, so the cooled air warms up before it reaches your vents and the attic dumps heat straight into your living space through the ceiling. The AC is working overtime because the building envelope is leaking, not because the unit is undersized. We fix this by air-sealing the attic floor, insulating to R-38, and often seeing blower-door reductions of 40% or more. Call (830) 402-5240 for a written estimate.
Yes, CPS Energy currently pays a per-square-foot rebate for attic insulation upgrades that reach R-38, and we pre-qualify customers and handle the rebate paperwork in-house before we leave the job. Because so many Live Oak homeowners are active-duty or retired military on fixed utility budgets, this rebate is a genuine closing tool that contractors who leave paperwork to the homeowner often miss. We’ll walk you through the qualification on the first visit. Call (830) 402-5240 to schedule.
Proper attic insulation and air sealing reduce the temperature differential that causes pipe freezes in exterior walls and attic spaces, though it’s not a substitute for pipe insulation in truly vulnerable locations. After Winter Storm Uri in February 2021, we saw lasting local demand for dual-purpose thermal upgrades that address both summer cooling loads and winter heat retention. The same R-38 envelope that keeps 150°F attic heat out in July keeps your conditioned air in during a freeze. Call (830) 402-5240 to assess your specific risk points.
We use high-density blown cellulose or fiberglass that packs tightly into shallow cavities and maintains its R-value without the bulk of batt products. Baffles at the soffits prevent wind-washing in the limited space, and we air-seal every accessible penetration before blowing material. In extremely tight attics near Randolph AFB, we’ve developed techniques to feed hose through minimal access points without cutting new hatches. The blower-door test confirms the result regardless of how tight the space was to work in.
We install Owens Corning, Johns Manville, Knauf, and GreenFiber, among others, and we recommend specific products based on your attic’s moisture history, cavity depth, and ventilation conditions. For Live Oak’s shallow, superheated attics, we often lean toward GreenFiber cellulose for its density and air-resistance, or Owens Corning fiberglass where moisture is a concern. We don’t lock you into a proprietary product. Call (830) 402-5240 to discuss which material fits your specific situation.
Ready to stop paying to cool a 150°F attic? Call (830) 402-5240 for a free estimate with a written price before any work starts. Our crew will bring the blower-door test, the photo documentation, and the Haven Standard protocol that has covered 9,000+ homes since 2016.
Written by Wes Okafor, Owner at Topside Attic Insulation Schertz, serving Live Oak and northeast Bexar County since 2016.