Fast, Reliable Blown-In Insulation Across Schertz
Most blown-in insulation jobs in Schertz run $1,800-$4,500 for a typical 2,000-square-foot attic, with same-day assessments available and crews dispatched from our San Antonio office. If your home was built between 2003 and 2022 in one of the production-builder subdivisions that define this market, you’re likely not dealing with worn-out insulation. You’re dealing with insulation that was never adequate to begin with. Call (830) 529-7780 for a written price before any work starts.
We serve Schertz from our San Antonio dispatch office, which means crews are typically on-site in Schertz neighborhoods within 45 minutes to an hour during standard scheduling windows. That proximity matters when you’re trying to coordinate around a workday or a PCS timeline. We’ve worked in the Buffalo Crossing, The Crossvine, and Pasadera subdivisions enough times that we recognize the floor plans, the attic access locations, and the specific code-year deficiencies before we pull the ladder down.
Our Blown-In Insulation team treats Schertz as a core market, not a distant add-on. The housing stock here is unusually uniform, and that uniformity means we can be precise about what you’ll find and what it will take to fix it.
Why Topside Attic Insulation Boerne Is Schertz’s Preferred Blown-In Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a significant concentration of those jobs has been in the Schertz corridor, particularly the subdivisions feeding into the JBSA-Randolph area. The reviews we receive from Schertz customers consistently cite two things: the blower-door numbers we leave behind, and the fact that we don’t start blowing insulation until the air sealing is complete. One recent customer in The Crossvine noted that our crew found and sealed top-plate gaps their previous contractor had walked past.
Response time to Schertz is typically same-day or next-day for assessments, with written prices delivered on-site before we leave. Emergency scheduling is available when attic conditions create immediate comfort or safety issues, and a live person answers calls 24/7, no voicemail loops.
What separates our work in Schertz is local pattern recognition. We know that a DR Horton or Lennar home from 2010 in Pasadera almost certainly has unsealed can lights and top plates. We know that KB Home two-stories near the Randolph corridor often have settled blown fiberglass compressed around HVAC penetrations. This isn’t guesswork. It’s repetition across a housing stock that was built fast, to minimum code, and often never inspected again after the original certificate of occupancy.
Our Blown-In Insulation Services in Schertz
Blown-In Fiberglass
Blown-in fiberglass is the material most Schertz attics already contain, just not in the right depth or distribution. We source from Owens Corning and Johns Manville, and we install to the depth that achieves your target R-value, not the depth that matches what the builder originally blew. In Schertz’s Climate Zone 2A, that typically means R-38 to R-49 on the attic floor, which requires more material than the original R-30 install. We air-seal first, then blow. The fiberglass goes in evenly, without the thin spots and settled valleys that are standard in 15-year-old Schertz attics.
Blown-In Cellulose
Blown-in cellulose, treated with borate for fire and pest resistance, performs well in Schertz’s hot-humid climate and offers slightly better resistance to air movement than fiberglass at equivalent densities. We use GreenFiber cellulose for Schertz customers who want a recycled-content option with strong thermal performance. Cellulose settles less over time than the low-density fiberglass originally installed in most local tract homes, which matters when you’re correcting a spec that was already marginal. We still air-seal first. The cellulose follows the sealing, not the other way around.
Blown-In Top-Up
The blown-in top-up is the most common job we perform in Schertz, and it’s almost never just “adding more.” On a typical 2008-2015 production-builder home, we find the original R-30 blown fiberglass has settled to effective R-20 or below, with unsealed penetrations creating thermal bypasses that void whatever R-value remains. Our top-up service includes air sealing of top plates, can lights, and penetrations, plus damming and boxing where needed, before we add new material to restore even coverage and achieve target depth. A top-up in Schertz typically runs $1,800-$3,200 depending on attic square footage and the extent of air-sealing work required.
Dense-Pack Wall Insulation
Dense-pack wall insulation fills empty or underfilled stud cavities with cellulose or fiberglass at a density that resists settling and reduces air movement through the wall assembly. In Schertz’s older production homes with minimal wall insulation, this is a retrofit option for walls that were never filled or where original batts have sagged or degraded. We drill access holes strategically, pack the cavity to 3.5 pounds per cubic foot for cellulose or equivalent density for fiberglass, then patch and match texture. Wall jobs in Schertz start around $2,500 for a focused area and scale from 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.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Schertz
We stock and install materials from Owens Corning, Johns Manville, and GreenFiber for blown-in work in Schertz, with no proprietary lock-in that limits your options. Owens Corning ProPink L77 loose-fill fiberglass is our standard for attic floor jobs requiring high coverage at low weight. Johns Manville Climate Pro blow-in fiberglass offers consistent fiberization and low dust during installation, which matters in occupied homes. GreenFiber cellulose is available for customers who prioritize recycled content and borate-treated pest resistance. We don’t push one brand over another. We specify based on your attic conditions, your target performance, and what the job actually requires. Materials are stocked regionally, so lead times for Schertz jobs are typically negligible.
Common Blown-In Insulation Problems We See in Schertz Homes
- Settled blown fiberglass at effective R-20 or below. The original R-30 blown fiberglass in Schertz’s production-builder homes was installed at low density to pass code inspection quickly. Over 10-15 years, it settles and shifts, creating thin spots over top plates and near eaves where thermal performance collapses. We measure depth and density before quoting any top-up.
- Unsealed can lights baking into settled insulation. Recessed can lights installed without airtight enclosures or proper boxing create direct thermal bypasses. In Schertz’s 140-160°F attics, these fixtures scorch surrounding insulation, void its R-value, and create fire risk. We box and dam every can light before blowing new material.
- Deferred maintenance in high-turnover rental properties near JBSA-Randolph. Military renters absorb inflated CPS Energy bills and PCS out before landlords investigate attic conditions. We’ve found identical deficiencies on entire streets - settled insulation, unsealed penetrations, no air sealing - compounding for a decade or more while tenants rotate through.
- Top plates and penetrations never sealed at original construction. Production builders in Schertz’s rapid-growth phase blew insulation over unsealed top plates, wire penetrations, and plumbing stacks. Conditioned air leaks directly into the attic 24/7, making the insulation layer largely irrelevant. Our blower-door test quantifies this leakage before we start sealing.
Pricing for Blown-In Insulation in Schertz, TX
Most blown-in insulation jobs in Schertz fall into these ranges:
| Service | Typical Range (Schertz) |
|---|---|
| Attic air sealing + blown fiberglass top-up (1,500-2,500 sq ft attic) | $1,800-$3,500 |
| Full attic replacement with air sealing (remove settled material, re-blow) | $3,200-$5,800 |
| Blown-in cellulose new install or replacement | $2,200-$4,200 |
| Dense-pack wall insulation (per 1,000 sq ft of wall area) | $2,500-$4,500 |
| Blown-in top-up only (minimal air sealing needed) | $1,400-$2,600 |
What moves a Schertz job toward the higher end: attic square footage above 2,500, extensive can-light boxing and damming, removal of degraded original material, rodent damage requiring cleaning before installation, and accessibility constraints like tight scuttle holes or low roof pitch. What keeps costs down: straightforward access, minimal removal, and a clear attic floor without stored belongings to relocate.
Every Schertz job begins with a written price before any work starts, per Haven Standard Clause 1. No exceptions. We also offer a Free Second Opinion on any written estimate from another contractor. Bring us their scope and we’ll read it with you. Call (830) 529-7780 to schedule.
We Also Serve Cities Near Schertz
Our crews work throughout the I-35 and 1604 corridors, including Schertz, Universal City, Converse, San Antonio, and Bulverde. Dispatch and scheduling are coordinated from our San Antonio office, with local crews serving each market. If you’re in a neighboring city and found this page, the same pricing structure and Haven Standard protocols apply.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz 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 Schertz
You almost certainly need air sealing plus a top-up, not just more material on top. The original R-30 in your 2008 Schertz home was likely installed at low density and has settled to effective R-20 or below, with unsealed top plates and can lights creating thermal bypasses that void whatever R-value remains. Adding new insulation without sealing first would bury the leaks but not stop them. We air-seal, then top up to R-38 or R-49 depending on your target. Call (830) 529-7780 for a written assessment.
Humidity doesn’t directly degrade properly installed blown-in fiberglass or cellulose, but it amplifies the consequences of air leaks. In Schertz’s hot-humid Climate Zone 2A, unsealed attic penetrations allow moisture-laden air to enter the attic, where it can condense on cool ductwork or diffuse into the insulation layer, reducing effective R-value and creating conditions for mold. Air sealing is the critical control. Our blower-door test measures how much humid air your attic is pulling in before we seal it. The insulation performs as specified only after the envelope is tight.
The PCS cycle. Military renters pay the CPS Energy bills, notice the upstairs rooms won’t cool below 78°F in August, and move on to their next duty station without ever getting the landlord to inspect the attic. The landlord sees the rent check, not the utility bill. We’ve found entire streets in the Buffalo Crossing and nearby subdivisions where the original R-30 blown fiberglass has settled to R-20 or below, with scorched can lights and unsealed top plates, untouched for 10-15 years. The deficiency is invisible until someone goes up with a ruler and a light. We document everything with photos and blower-door numbers so landlords can see what tenants never reported.
We box and dam every recessed can light before adding insulation, never blow directly against an unprotected fixture. In Schertz’s 140-160°F attics, unsealed can lights bake surrounding insulation, void its R-value, and create fire risk. Our crew installs fire-rated enclosures or builds gypsum boxes around each fixture, maintains required clearances, then blows insulation up to the dam height. You get photos of every boxed light in your Documented Photo Record. This is standard on every job, not an upgrade.
We install Owens Corning, Johns Manville, and GreenFiber blown-in products in Schertz, specified to the job rather than pushed as a default. Owens Corning ProPink L77 is our standard for attic floor jobs requiring high coverage at low weight. Johns Manville Climate Pro offers low-dust installation in occupied homes. GreenFiber cellulose is available for customers who want borate-treated, recycled-content material. We don’t claim exclusive or preferred status with any manufacturer. The material choice follows from your attic conditions and performance targets, not from a supplier contract. Call (830) 529-7780 to discuss what makes sense for your specific job.
Written by Wes Okafor, Owner at Topside Attic Insulation Boerne, serving Schertz since 2016.