Fast, Reliable Attic Insulation Across Schertz
Most attic insulation retrofits in Schertz run $1,800-$4,500 depending on whether we’re topping up existing material or pulling compressed batts and starting fresh. Our crews are typically on-site in Schertz within 24-48 hours of your call, and we dispatch from our San Antonio office so we’re not driving up from Austin or down from Dallas pretending we’re local.
We’ve worked in Schertz long enough to know the difference between a 2004 build off Wiederstein Road and a 2017 build near the Cibolo Creek corridor. The housing stock is different, the failure patterns are different, and the fix is different. If your home was built between 2000 and 2020 by DR Horton, Lennar, or a similar production builder, there’s a better-than-even chance your attic has uncapped recessed can lights and fiberglass batts that have settled well below their original R-value. That’s not a guess. We find it block after block.
Call (737) 227-6219 for a free written estimate. We’ll bring a blower-door test rig, a thermal camera, and a written price before anyone lifts a tool.
Why Topside Attic Insulation Canyon Lake Is Schertz’s Preferred Attic Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a significant share of those have been in the IH-35 corridor between Schertz and New Braunfels. Our Schertz customers leave reviews that mention the same things: the crew showed up on time, the price on the invoice matched the price on the estimate, and the before-and-after blower-door numbers were printed on the final report. Those reviews are public. Read the three-star ones too. They’ll tell you more than the five-stars.
Response time to Schertz is typically same-day or next-day for estimates, and we don’t use callback windows measured in business days. A live person answers the phone 24/7. If you’re in a neighborhood like The Crossvine, Willow Grove, or near the Schertz Parkway corridor, our crew knows the subdivision names, the build eras, and the common failure patterns without running a Google search.
Our Attic Insulation in Schertz work is backed by the 365-Day Done Right Promise. If it’s not done right, we make it right. That’s Haven Standard Clause 3, and it’s in writing before anyone starts.
Our Attic Insulation Services in Schertz

Blown-In Attic Insulation
Blown-in fiberglass or cellulose is what most Schertz homes need after we pull the settled batts and seal the air leaks. We blow to R-49, which is current Texas energy code for attic insulation, and we use materials from Johns Manville, Knauf, and Owens Corning depending on what’s right for your assembly. The blown-in material fills irregular joist bays and covers the top plates we sealed earlier. In Schertz’s 145-155°F summer attics, a uniform blown-in blanket with no gaps performs measurably better than the lumpy, compressed batts we pull out.

Attic Batt Insulation
We install batt insulation in Schertz when the application calls for it: knee walls, vertical gable ends, or specific framed cavities where blown-in won’t stay put. We source Rockwool and CertainTeed batts for these applications, and we cut them to fit the bay exactly. Compressed batts lose R-value. Gaps lose R-value. We photograph every bay before we close it up, and those photos go in your Documented Photo Record.

Attic Insulation Top-Up
This is the most common call we get in Schertz. Homeowner buys a 2008 production build, climbs into the attic, and sees fiberglass batts that look thin and patchy. We test what you’ve got, air-seal what’s leaking, and blow new material on top to bring the assembly to full R-value. A typical top-up in Schertz runs $1,800-$2,800 for a 2,000-square-foot home. We don’t blow over unsealed leaks. That’s not our procedure. Sealed first, then insulated. In that order.

Attic Insulation Replacement
When batts are compressed, water-stained, or contaminated, we pull everything, bag it, and start fresh. Replacement jobs in Schertz typically run $3,200-$4,500 depending on attic square footage and how much air sealing the top plates and penetrations need. We see this most often in homes that had roof leaks or rodent activity. Every replacement includes full air sealing, baffles at the soffits, and a post-work blower-door test so you can see the performance change in CFM50.

Attic Baffles & Ventilation Prep
Schertz’s vented attics need baffles at every soffit intake to keep the blown-in insulation from blocking airflow. Without baffles, you get hot spots, moisture buildup, and shortened shingle life. We install prop-vent or foam baffles as standard on every blown-in job, and we verify soffit intake area is adequate for the attic volume. In some Schertz subdivisions built in the 2005-2010 rush, we find soffits that were painted shut or never cut properly. We document what we find and show you the photos.

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 don’t lock you into proprietary products. Our Schertz crews stock and install materials from Johns Manville, Knauf, Rockwool, and CertainTeed, plus Owens Corning and GreenFiber cellulose when the application calls for it. No brand pays us for placement. We specify what performs for your specific attic assembly, and we keep common R-values and baffle sizes on our trucks so we’re not ordering parts and making you wait. If you’ve got a preference, we’ll source it. If you don’t, we’ll explain why we’re specifying what we’re specifying, and you’ll get that explanation in writing with the scope.
Common Attic Insulation Problems We See in Schertz Homes

- Settled builder-grade batts below rated R-value. The fiberglass batts installed in Schertz’s 2000-2020 production homes were compressed during installation and have settled further over 10-20 years. What was sold as R-30 often measures closer to R-11 in the field. We photograph the compression and include it in your Documented Photo Record.
- Degraded radiant-barrier decking. Many Schertz homes were built with radiant-barrier roof decking that reflected heat when new. After 15+ years of 150°F attic cycles, the reflective surface oxidizes and loses effectiveness. The decking stays, but the insulation below needs to do more of the work. We account for this in our R-value recommendations.
- Uncapped recessed can lights leaking conditioned air. This is the Schertz signature failure. Production electricians in the 2005-era DR Horton and Lennar builds ran the same can-light layout block after block, and nobody capped or sealed them. Conditioned air escapes straight into the attic all summer, and the superheated attic air radiates back down through the fixture. We find this in Schertz homes near JBSA-Randolph almost universally. Our crew caps each can with a fire-rated cover, foams the penetration, and only then blows insulation over the top.
- Missing air sealing at top plates and bypasses. The gap between interior walls and the attic floor is a direct path for air movement. In Schertz’s freeze-thaw climate, these bypasses let warm, moist indoor air escape in winter, contributing to the pipe-freeze vulnerability that Winter Storm Uri exposed. We seal every top plate, wire penetration, and duct boot with foam or caulk before adding insulation.
Pricing for Attic Insulation in Schertz, TX
Here are the ranges we see on actual Schertz jobs:
| Service | Typical Range (Schertz) |
|---|---|
| Attic Insulation Top-Up (air seal + blow to R-49) | $1,800 - $2,800 |
| Attic Insulation Replacement (remove, seal, re-insulate) | $3,200 - $4,500 |
| Attic Baffles & Ventilation Prep (standalone) | $400 - $800 |
| Air Sealing Only (before insulation or as standalone) | $900 - $1,600 |
What moves the number: attic square footage, current insulation condition, number of recessed can lights that need capping, accessibility, and whether we find active roof leaks or rodent damage that needs remediation first. Every Schertz job gets a written price before any work starts. No exceptions. That’s Haven Standard Clause 1. Bring us a competing written estimate and we’ll give you a Free Second Opinion, line by line.
We Also Serve Cities Near Schertz

Our crews work daily in Universal City, Cibolo, Converse, and New Braunfels. The same production-builder housing stock, the same failure patterns, the same fix. If you’re in one of these cities and found this page, our Attic Insulation team covers your area too. Call for scheduling.
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

Yes, almost certainly. Your 2006 Schertz home was insulated to minimum Texas energy code for that year, and the fiberglass batts have compressed and settled below their rated R-value after nearly 20 years of thermal cycling. We measure actual R-value in the field with a thermal probe, and we regularly find R-11 performance where R-30 was specified. Call (737) 227-6219 for a free assessment and written price.
Uncapped recessed can lights create open pathways between your conditioned space and a 150°F attic, which destroys the thermal boundary your insulation is supposed to maintain. In Schertz’s production-built neighborhoods near JBSA-Randolph, we find these unsealed cans in nearly every home from the 2000-2010 build era. We cap them with fire-rated covers, seal the penetration, and only then blow insulation. The blower-door test proves the difference.
It helps both, and Winter Storm Uri proved how much Schertz’s builder-grade assemblies struggle in hard freezes. Poor attic insulation and air leaks let warm indoor air escape, which allows interior wall cavities and pipe chases to drop below freezing even when the thermostat reads 68°F. A sealed, properly insulated attic keeps heat where it belongs and reduces freeze risk. The same fix that cuts your July electric bill protects your pipes in January.
We install Johns Manville, Knauf, Rockwool, Owens Corning, and CertainTeed products depending on the application and your preference. No proprietary lock-in, no brand kickbacks. We specify what performs for your specific attic assembly, and we put the material name in your written scope so you know exactly what you’re getting. For a free written estimate with material specification, call (737) 227-6219.
Not directly, but you can document the problem and request a repair in writing. Texas property code requires landlords to maintain units in a condition that materially affects health or safety, and extreme energy inefficiency that creates habitability issues may qualify. We can’t give legal advice, but we can provide a written assessment with blower-door numbers and thermal images that you can attach to your repair request. The documentation costs nothing. Call (737) 227-6219 to schedule.
Written by Wes Okafor, Owner at Topside Attic Insulation Canyon Lake, serving Schertz since 2016.