Fast, Reliable Blown-In Insulation Across Schertz
Most blown-in insulation jobs in Schertz run $1,200-$3,800 depending on attic size and whether we’re topping up existing material or starting fresh after removal. Our crews are typically on-site in Schertz within 24 hours of your call, and same-day service is often available for homes near FM 3009, I-35, or the Schertz Parkway corridor. Dispatch and scheduling are coordinated from our San Antonio office, but the technicians who arrive at your door live and work in this market, so they know what 15 years of 150°F attic heat does to builder-grade blown cellulose. Call (830) 549-6646 for a written price before any work starts.
We got a call from a homeowner in Woodland Oaks whose single-story brick-veneer had never had an insulation upgrade since it was built in the 2000s, and when our tech measured at the attic hatch he found the original blown fiberglass had settled to roughly six inches, an effective R-value well under what the house needed. We ran a blown-in top-up with Johns Manville fiberglass over the existing material, brought the depth back to spec, and the homeowner called back two days later saying the upstairs bedrooms were finally holding temperature through a 100°F afternoon. That’s the specific problem we solve in Schertz, where production-builder stock from the late 1990s through the 2010s is now hitting its degradation window all at once.
Why Topside Attic Insulation Seguin Is Schertz’s Preferred Blown-In Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a significant share of them sit in the Schertz market, from The Crossvine to the older sections near Randolph Air Force Base. Our reviews from Schertz customers consistently mention two things: the technician showed up with a written price already prepared, and the before-and-after blower-door numbers proved the work actually changed something. We’re not guessing at what your attic needs. We measure it.
Response time to Schertz is typically same-day or next-day, depending on whether you’re north of FM 78 or closer to the Cibolo border. Our crews know the local building patterns, the slab-foundation plumbing runs that freeze when hard cold snaps hit, and the exact depth-to-R-value conversion for the Owens Corning and GreenFiber materials most commonly found in Schertz tract homes. When you call (830) 549-6646, a live person answers, 24/7. No callback windows measured in business days.
Under Haven Standard, every job begins with a written scope and written warranty before anyone lifts a tool. That includes our 365-Day Done Right Promise. If it’s not done right, we make it right. And we publish before-and-after blower-door readings on every applicable job, a pressurization measurement that shows, in one number, how much conditioned air your building envelope was losing before and after the work.
Our Blown-In Insulation Services in Schertz
Blown-In Cellulose
Blown-in cellulose in Schertz is typically what we find in 1990s-2000s production homes, installed by builders to hit code minimum and then left to settle for two decades. Cellulose is treated borated paper fiber, dense and effective when fresh, but it compresses and shifts in the extreme thermal cycling of a Schertz attic. We install new GreenFiber cellulose where removal makes sense, or we top up over existing material if the substrate is dry and intact. Most Schertz cellulose jobs run $1,400-$2,600 for a standard 1,800-square-foot attic.
Blown-In Fiberglass
Blown-in fiberglass is what we recommend for most Schertz top-ups, especially in homes where the original material has settled but doesn’t need full removal. Johns Manville fiberglass doesn’t absorb moisture the way cellulose can, and it maintains its loft longer under sustained heat. In Schertz’s 150°F-160°F attic conditions, that thermal stability matters. We blow fiberglass to spec depth across the entire attic plane, including the critical zones around the attic hatch and recessed can lights where builder crews typically skimped. Typical range: $1,200-$2,400.
Dense-Pack Wall Insulation
Dense-pack wall insulation is how we treat the 2×4 exterior walls common in Schertz’s 2000s-era tract homes, which were typically fitted with R-13 batts that have sagged, compressed, or been disturbed by electrical and plumbing work over multiple tenant cycles. We drill access holes at stud-bay intervals, blow cellulose or fiberglass to a calculated density that prevents settling, and patch the drywall. It’s slower than attic work, but for Schertz homeowners whose bedrooms bake on the west side every July afternoon, it’s often the fix that finally works. Wall dense-pack in Schertz typically runs $2,200-$3,800 depending on home size and interior finish.
Blown-In Top-Up
Blown-in top-up is our most common service in Schertz, and for good reason. Most production-builder attics here started at R-30 and have settled to an effective R-18 or lower. Full removal is rarely necessary if the material is dry and uncontaminated. We measure depth at multiple points, calculate the gap to current IECC recommendations, and blow new material over the existing layer to bring the assembly back to performance. It’s faster, cleaner, and typically 40-50% less than full removal and replacement. Most Schertz top-ups fall between $1,200-$2,100.
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.
Before
AfterTrusted Brands We Service in Schertz
We source blown-in materials from Owens Corning, Johns Manville, GreenFiber, and other major manufacturers, no proprietary lock-in. For Schertz homeowners, that means we match the material to the job, not the other way around. If your existing attic has GreenFiber cellulose that’s still viable, we’ll top up with compatible material. If we’re starting fresh in a home near Randolph AFB that’s been through multiple uninspected tenancies, we might recommend Johns Manville fiberglass for its thermal stability in extreme heat. We stock common densities and blower configurations locally, so we’re not waiting on freight when you need same-day service.
Common Blown-In Insulation Problems We See in Schertz Homes
- Settled builder-grade cellulose from R-30 to effective R-18. Original blown cellulose in 1990s-2000s Schertz tract homes has compressed and shifted after 15-25 years of extreme thermal cycling. The attic hatch is almost always the worst-performing zone, since it’s the most disturbed area and rarely gets adequate coverage at original install.
- Thin coverage over attic access and recessed can lights. Production-builder layouts in subdivisions like Woodland Oaks and The Crossvine consistently show flat or missing insulation around penetrations. During June through September, those gaps let 150-160°F attic air leak directly into conditioned space, creating the hot-spot complaints we hear most often.
- Exposed pipe runs in unconditioned attics. Schertz’s slab homes often route plumbing through the attic, and the pipe-adjacent insulation loses coverage over time. After hard freezes like February 2021, we get calls from homeowners who discovered this vulnerability the expensive way.
- Zero upgrades across multiple military-renter tenancy cycles. Homes near Randolph AFB that have cycled through tenant after tenant with no owner-occupant oversight remain frozen at original builder spec. We’ve opened hatches in Schertz rentals where the insulation label was still readable, dated 2004, and completely undisturbed.
Pricing for Blown-In Insulation in Schertz, TX
Here’s what blown-in insulation costs in the Schertz market, based on jobs we’ve completed in subdivisions from Schertz Parkway to The Crossvine:
| Service | Typical Range |
|---|---|
| Blown-In Top-Up (standard attic) | $1,200 - $2,100 |
| Blown-In Fiberglass (full attic, fresh) | $1,800 - $3,200 |
| Blown-In Cellulose (full attic, fresh) | $1,400 - $2,600 |
| Dense-Pack Wall Insulation | $2,200 - $3,800 |
| Insulation Removal + Replacement | $2,800 - $4,500 |
What moves you within these ranges: attic square footage, current material condition, accessibility (steep roof pitches or limited hatch openings add labor), and whether we need to air-seal top plates, can lights, and penetrations before blowing. We never blow insulation over an unsealed attic floor. That’s not an upsell; it’s the sequence the work requires. Every estimate includes a Written Price Before Any Work Starts, flat scope, and written warranty. Bring us a competing quote and we’ll read it with you, our Free Second Opinion on any written estimate. Call (830) 549-6646.
We Also Serve Cities Near Schertz
Our crews work throughout the I-35 corridor and northeast Bexar/Guadalupe County area. If you’re in Schertz or nearby Universal City, Cibolo, Converse, or New Braunfels, the same response times and pricing structure apply. We don’t charge travel fees for work within this service radius.
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
Measure the insulation depth at your attic hatch. If it’s six inches or less of original blown material, you’re almost certainly below effective R-18 and a top-up will solve it. We only recommend full removal when the existing material is wet, rodent-contaminated, or chemically degraded. Most Schertz production homes from the 2000s just need the right material blown over what’s there. Call (830) 549-6646 and we’ll measure it for you, no charge.
Because “has insulation” and “has enough insulation” are different things. In Schertz’s 150°F-160°F attic conditions, R-18 performs like a screen door. The other common issue is air leakage through unsealed can lights, top plates, and the attic hatch itself, bypassing whatever insulation is present. We find this in nearly every production-builder home we inspect in Schertz. The fix is air sealing first, then topping up to spec depth.
Yes, often. Homes near FM 3009, I-35 frontage, or the Schertz Parkway corridor can usually be scheduled same-day if you call before noon. More remote sections of the city or jobs requiring removal first typically schedule next-day. A live person answers (830) 549-6646 24/7, so you won’t get a callback window measured in business days.
Absolutely. We’ve opened hatches in Schertz rentals where the insulation was original 2004 builder stock, completely undisturbed through four or five tenant cycles. No one invested in upgrades because no one planned to stay long-term. That creates a concentrated pool of homes where the insulation has degraded in place for 15-20 years without any owner-occupant oversight. It’s predictable, and it’s fixable.
We install Owens Corning, Johns Manville, and GreenFiber blown products, matched to the specific job. We don’t have proprietary lock-in agreements, so the recommendation is based on your attic conditions, not our supplier contract. Every job gets a Documented Photo Record showing before, during, and after, and on applicable jobs we publish before-and-after blower-door numbers so you can verify the performance change. Call (830) 549-6646 for a written price.
Written by Wes Okafor, Owner at Topside Attic Insulation Seguin, serving Schertz and surrounding communities since 2016.