Fast, Reliable Attic Insulation Across Schertz
Most attic insulation jobs in Schertz run $1,800-$4,500 depending on whether we’re correcting settled blown fiberglass in a 2000s-era tract home or doing a full replacement with air sealing. Our crews are typically on-site in Schertz within 24-48 hours of your call, and we bring a written price before any work starts. Dispatch and scheduling run through our San Antonio office, but the technicians who’ll be in your attic live and work in this corridor - they know the difference between a Schertz subdivision built in 2005 and one built in 2018, and they know what each era’s builder probably skipped.
Call (830) 529-7780 to schedule a free estimate. We’ll walk your attic, show you what we find, and leave you with a written scope and flat price - no work starts without both.
Why Topside Attic Insulation Boerne Is Schertz’s Preferred Attic Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a growing share of that work is here in Schertz - particularly in the production-builder subdivisions that define this market. Our Attic Insulation team arrives with blower-door equipment, infrared cameras, and the patience to explain what your attic actually needs rather than sell you what we want to install.
Schertz customers find us through referrals from neighbors who’ve seen their CPS Energy bills drop after we corrected the original builder’s minimum-code install. We answer calls with a live person 24/7 - no voicemail loops, no callback windows measured in business days. Our technicians are background-checked, uniformed, and named in your appointment confirmation text. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
Every job closes with a Documented Photo Record and, on applicable work, before-and-after blower-door numbers so you can verify the air-sealing result in a single figure. The 365-Day Done Right Promise applies to all completed work - if it’s not done right, we make it right.
Our Attic Insulation Services in Schertz
Blown-In Attic Insulation
Blown-in fiberglass or cellulose is the standard correction for Schertz’s settled attic floors. We source Owens Corning and Johns Manville blown fiberglass, plus GreenFiber cellulose for homeowners who prefer a treated-paper product. The critical difference in our work: we never blow insulation over an unsealed attic floor. Our crews seal top plates, can lights, wire penetrations, and duct boots first, then blow to the depth that matches your roof pitch and ventilation path. In Schertz’s Zone 2A climate, that typically means 14-16 inches of settled depth for a true R-38 to R-49 performance layer.
Attic Batt Insulation
Batt insulation - pre-cut fiberglass or mineral wool batts - makes sense in Schertz attics with limited access, storage platforms, or kneewall assemblies where blown material won’t stay put. We use Knauf batts for these applications, cut to fit around obstructions rather than compressed into place. Compression kills R-value. Our Schertz crews document batt installation with photos showing full, uncompressed contact with the attic floor - part of the Documented Photo Record you receive before we leave.
Attic Insulation Top-Up
This is the most common service we perform in Schertz. A top-up adds material to existing insulation that hasn’t failed but has settled below spec. In a typical 2005-2015 Schertz tract home, the original R-30 blown fiberglass has compressed to R-20 or lower. We remove debris and rodent evidence if present, air-seal all accessible penetrations, then blow new material to bring the assembly to current IECC standards for Zone 2A. Most Schertz top-ups run $1,800-$3,200 for a 2,000-2,800 square foot home. The key is sealing first, then insulating - in that order.
Attic Insulation Replacement
Full replacement becomes necessary when existing insulation is contaminated, water-damaged, or so poorly installed that adding more material won’t fix the thermal bypasses. In Schertz’s rental-heavy corridors near JBSA-Randolph, we see this more often - years of tenant turnover with no attic inspection, compounded by roof leaks that went unreported. We remove the old material, sanitize the attic floor, seal every penetration we can access, then install new insulation to spec. Replacement jobs in Schertz typically range $3,200-$5,800 depending on attic square footage and contamination severity.
Attic Baffles & Ventilation Prep
Attic baffles - also called rafter vents or vent chutes - keep soffit intake air flowing over the insulation rather than pushing it back from the eaves. In Schertz’s 140-160°F summer attics, blocked ventilation creates heat pockets that degrade fiberglass loft and drive moisture into the assembly. We install baffles at every soffit vent before blowing insulation, ensuring a clear path from intake to exhaust. This is standard on our Schertz jobs, not an upsell.
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.
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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 Schertz
We stock Owens Corning, Johns Manville, and Knauf insulation products for Schertz jobs, with no proprietary lock-in that limits your options. These are the same materials specified by production builders - but installed to performance standards, not minimum-code passing grades. Our San Antonio warehouse maintains inventory for standard Schertz attic dimensions, so we’re not waiting on material delivery while your job sits open. For homeowners who prefer cellulose, we source GreenFiber treated cellulose with borate fire and pest retardant. We do not claim exclusive or preferred status with any manufacturer; we choose the material that matches your attic’s condition and your preference.
Common Attic Insulation Problems We See in Schertz Homes
- Settled blown fiberglass below nominal R-value. The R-30 blown fiberglass installed by DR Horton, Lennar, and KB Home in Schertz’s 2003-2022 subdivisions has settled to effective R-20 or lower. The material hasn’t disappeared - it’s compressed under its own weight and foot traffic from HVAC service - but the thermal performance is gone.
- Unsealed top plates and can lights creating thermal bypasses. Production builders in Schertz’s growth era rarely sealed the gap between wall top plates and drywall, or the holes cut for recessed can lights. Conditioned air leaks into the attic continuously, carrying humidity that degrades whatever insulation is present.
- Gulf humidity and extreme attic temperatures degrading loft. Schertz’s Climate Zone 2A conditions - hot, humid, with attic surfaces reaching 160°F - break down fiberglass binder and collapse cellulose loft over time. The nominal R-value on your original insulation label rarely matches what’s actually performing in your attic today.
- Deferred maintenance in rental corridors near JBSA-Randolph. We were called out to a tract home off the JBSA-Randolph corridor where the original R-30 blown fiberglass had settled down to roughly R-20 around the can lights and top plates, and the CPS Energy bills were running hot year after year. We air-sealed those penetrations, installed Owens Corning blown fiberglass up to a proper hot-humid Zone 2A depth, and added attic baffles to keep the intake vents clear. The tenant family was on a PCS clock, but the landlord finally saw the payoff when the next cooling season’s bills dropped. This pattern repeats street after street - tenants absorb high cooling costs and PCS out before the landlord ever inspects.
Pricing for Attic Insulation in Schertz, TX
| Service | Typical Range in Schertz |
|---|---|
| Attic air sealing only (prep for insulation) | $800-$1,600 |
| Attic insulation top-up (seal + blow to R-38) | $1,800-$3,200 |
| Full attic insulation replacement | $3,200-$5,800 |
| Attic baffles and ventilation prep | $400-$800 (included free on full jobs) |
| Home energy audit with blower-door test | $350-$500 (credited toward work) |
These ranges reflect Schertz’s typical 2,000-2,800 square foot production-builder homes with vented attics and standard roof pitches. Larger homes, complex rooflines, or contaminated insulation removal move toward the higher end. We provide a written price before any work starts - Haven Standard Clause 1 - and a Free Second Opinion on any written estimate from another contractor. Call (830) 529-7780 for your exact quote; estimates are free.
We Also Serve Cities Near Schertz
Our crews work throughout the I-35 corridor and northeast Bexar County, including Schertz, Universal City, Converse, San Antonio, and Bulverde. Same written-price standard, same documented results, same live-person answering the phone.
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 - Attic Insulation in Schertz
No. The original R-30 blown fiberglass in Schertz’s 2003-2022 production homes was calibrated to pass code inspection, not to manage real-world Texas summers. Most has settled to R-20 or below, and the unsealed penetrations mean conditioned air escapes continuously. The right fix is air sealing plus insulation to R-38 or R-49 for Zone 2A. Call (830) 529-7780 and we’ll show you what your attic actually measures.
Because blowing new insulation over unsealed leaks is like pouring water into a bucket with holes. The top plates, can lights, and duct penetrations in Schertz’s production-builder homes were never sealed at original construction. Until those bypasses are closed, any insulation you add performs below its rating. We seal first, then insulate - in that order, always. Call (830) 529-7780 for a free assessment of your attic’s leakage points.
It matters in your favor. Because so much of Schertz’s housing stock went up in the same 2003-2022 production-builder window, our crews know exactly what assembly we’ll find before we open the attic hatch - R-30 blown fiberglass over unsealed top plates and leaky can lights. That predictability means faster, more accurate estimates and no surprises in your written price. Call (830) 529-7780; we can often quote a tight range from your street name and build year.
The property owner. In Schertz’s military rental corridors, tenants typically absorb high cooling bills until PCS orders arrive, leaving the attic untouched for years. We work directly with landlords and property managers, providing a written scope, flat price, and Documented Photo Record that satisfies most lease-disclosure requirements. If you’re the tenant, forward our estimate to your landlord; if you’re the owner, call (830) 529-7780 and we’ll stop the bill bleed.
A top-up adds material to existing insulation that’s structurally intact but settled - common in Schertz homes where the original fiberglass is dirty but not contaminated. Full replacement removes the old material entirely, necessary when there’s rodent infestation, water damage, or failed vapor barriers. Most Schertz production homes qualify for top-up with air sealing, saving $1,000-$2,500 over replacement. We’ll tell you which applies after seeing your attic; call (830) 529-7780 for a free inspection.
Ready to fix what your builder missed? Call (830) 529-7780 to schedule your free attic assessment. We’ll bring a blower door if the job warrants it, show you exactly what we find, and leave you with a written price before any work starts. That’s Haven Standard. That’s how we operate.
Written by Wes Okafor, Owner at Topside Attic Insulation Boerne, serving Schertz and the greater San Antonio corridor since 2016.