Fast, Reliable Blown-In Insulation Across Schertz
Blown-in insulation in Schertz typically runs $1.80-$3.20 per square foot of attic floor, with most complete attic jobs falling between $2,400 and $4,800 depending on whether air sealing is needed first. Our crews dispatch to Schertz from our San Antonio office, and we can usually inspect your attic within 24-48 hours of your call. If you’re sweating through August in a 2005 DR Horton or Lennar build off IH-35, the problem usually isn’t your air conditioner - it’s the builder-grade fiberglass batts that settled below their rated R-value years ago, plus the unsealed can lights and top plates that let your conditioned air escape straight into a 150°F attic.
We’ve sealed and insulated more than 9,000 homes since 2016, and Schertz’s 2000-2020 production-built stock represents a distinct category of work. These homes weren’t built badly - they were built to minimum code at maximum speed. Now that they’re 10-20 years old, the gap between what was installed and what the house actually needs has become measurable on a blower-door test. Call (737) 227-6219 for a free estimate with a written price before any work starts.
Why Topside Attic Insulation Canyon Lake Is Schertz’s Preferred Blown-In Insulation Company
Our Blown-In Insulation team has worked in enough Schertz attics to recognize the specific failure patterns in this market. We know which Kensington Ranch and Pecan Grove builds have the uncapped recessed cans. We know which blocks off FM 1518 and Schertz Parkway got radiant-barrier decking that degraded faster because of install-quality variation during the 2005-2010 build rush. That local pattern recognition saves time on every job.
Homeowners in Schertz review us across multiple platforms, and the consistent thread in three-star and five-star reviews alike is our documentation. Every customer gets a written scope, a written warranty, and a Documented Photo Record of the completed work. On air-sealing jobs, we publish before-and-after blower-door numbers - a pressurization reading that shows, in one figure, how much conditioned air your home was losing before and after our crew finished.
Response time to Schertz is typically next-day or same-week, depending on season. Calls are answered by a live person 24/7, and you’ll get a text when your technician is en route with a name and photo. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
We also offer a Free Second Opinion on any written estimate - bring us a competing quote and we’ll read it with you, line by line. Our 365-Day Done Right Promise applies to all completed work in Schertz.
Our Blown-In Insulation Services in Schertz
Blown-In Cellulose
We blow GreenFiber cellulose in Schertz attics where the existing fiberglass batts have compressed or settled below useful R-value. Cellulose performs better in our climate because it resists the convection currents that form in loose fiberglass when attic temperatures spike past 145°F in July. For a typical 2,000-square-foot Schertz home with a vented attic, a full cellulose install to R-38 runs $2,800-$4,200 including air sealing of top plates and penetrations. We never blow over an unsealed attic floor - that’s Haven Standard, not an upsell.
Blown-In Fiberglass
For homeowners who prefer fiberglass, we install Owens Corning and Johns Manville loose-fill products to specified depth. Fiberglass works well in Schertz when the attic floor is already properly sealed and the primary need is R-value recovery rather than bypass repair. A fiberglass top-up in a sealed Schertz attic typically costs $1,800-$3,200. We measure existing depth with a ruled probe, calculate the gap to target R-value, and document both readings in your job record.
Dense-Pack Wall Insulation
Schertz’s production-built homes from the 2000s rarely have insulated wall cavities in the original build. Dense-pack cellulose fills these empty stud bays through drilled access holes, reducing thermal bridging and outside noise transmission. This is slower work than attic blowing - a typical 2,300-square-foot Schertz home runs $3,500-$5,500 for full exterior walls - but the comfort difference in rooms with western exposure is immediate and measurable.
Blown-In Top-Up
This is our most common Schertz service. The original batts are left in place, we air-seal the bypasses first, then blow additional insulation to restore or exceed the original R-value target. A top-up with sealing in a standard Schertz production home runs $2,400-$3,800. The key is sequencing: sealed first, then insulated. Our crew was out in the Kensington Ranch area off FM 1518 on a 2006 DR Horton build where the original fiberglass batts had settled to about R-11 and three recessed cans were wide open to the attic. We air-sealed the top plates and can housings, then blew in GreenFiber cellulose to bring the vented attic up to a proper R-value with the existing radiant-barrier decking left in place. The homeowner went from a 78°F thermostat struggle to holding 75°F in August - the win was sealing the bypasses before the top-up.
What happens when you call
- 1
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.
Before
AfterTrusted Brands We Service in Schertz
We source materials from Owens Corning, Johns Manville, Knauf, and GreenFiber - no proprietary lock-in that limits your options. For Schertz jobs, we stock GreenFiber cellulose and Owens Corning fiberglass at our San Antonio warehouse, which means no supply-chain delays on standard top-up or full-coverage jobs. If your home has existing Knauf or Johns Manville batts and you want to match manufacturer for warranty continuity, we can source those too. Every bag lot is documented in your job record with product code and install date.
Common Blown-In Insulation Problems We See in Schertz Homes
- Compressed builder-grade batts below rated R-value. The fiberglass installed in Schertz’s 2000-2010 production builds was typically compressed during rough-in by electricians and HVAC crews, then further degraded by attic heat cycling. By year 10, many attics measure R-19 or less where R-30 was specified.
- Uncapped recessed can lights dumping conditioned air. Homes near JBSA-Randolph built in the early-to-mid 2000s frequently have recessed cans that were never capped or air-sealed. In summer, your cooled air escapes directly into a 150°F attic. In winter, that same bypass lets cold attic air drop into your living space.
- Degraded radiant-barrier decking. The OSB with foil backing installed in many Schertz builds has lost reflectivity after 10-20 years of attic heat and dust accumulation. It still provides some benefit, but it no longer performs like new stock - which makes the insulation layer beneath it more critical, not less.
- Unsealed top plates at interior wall intersections. Production builders running at speed often skipped sealing the gap where interior wall framing meets the ceiling drywall. These bypasses are invisible from below but show clearly on an infrared camera or blower-door test - and they destroy the performance of any insulation laid over them.
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 Kensington Ranch to Pecan Grove to the Cibolo Creek corridor:
| Service | Typical Range | What Drives the Price |
|---|---|---|
| Blown-in cellulose top-up with air sealing | $2,400 - $3,800 | Attic square footage, number of can lights to cap, accessibility |
| Full cellulose coverage to R-38 (sealed attic) | $2,800 - $4,800 | Removal of existing material, decking condition, venting modifications |
| Blown-in fiberglass top-up | $1,800 - $3,200 | Depth needed, attic obstructions, hose access |
| Dense-pack wall insulation | $3,500 - $5,500 | Wall square footage, siding type for access repair, interior finish protection |
These ranges reflect Schertz’s typical 1,800-2,800 square foot production-built homes with vented attics and standard roof pitches. Larger custom homes or conditioned attic conversions fall outside these brackets and require site-specific pricing. Every estimate we provide is a written price - flat, with scope and warranty documented before anyone lifts a tool. Haven Standard Clause 1. Call (737) 227-6219 for your free estimate.
We Also Serve Cities Near Schertz
Our crews work throughout the I-35 northeast corridor, including Schertz and the surrounding communities of Universal City, Cibolo, Converse, and New Braunfels. Dispatch and scheduling are coordinated from our San Antonio office, with local crews serving each market. The same written-price guarantee, documented photo record, and blower-door verification apply in every city we cover.
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
Yes, if the existing batts have compressed below their rated R-value or if bypasses at can lights and top plates are unsealed. In Schertz’s 2000-2010 production stock, we measure settled batts at R-11 to R-19 routinely where R-30 was originally specified. The blown-in top-up only performs if we seal first, then blow - adding material over an unsealed attic floor is paying for insulation that the wind in your attic will move around. Call (737) 227-6219 for a free inspection and written price.
Because unsealed can lights create a direct path for conditioned air to escape into the attic, and in Schertz’s climate that superheated attic air radiates back down through the ceiling all summer. Our crews cap or box every recessed can with fire-rated material before any insulation goes in. This single step typically reduces blower-door readings by 300-600 CFM50 in a 2,000-square-foot Schertz home - a measurable, documented improvement you can verify in your job record.
It helps in both seasons, and Uri proved why. The same builder-grade assemblies that let attics hit 150°F in August also let interior temperatures drop dangerously fast when outside temperatures fall below 20°F for extended periods. Properly air-sealed and insulated attics slow heat loss in winter as effectively as they slow heat gain in summer. After Uri, we completed multiple Schertz jobs where homeowners specifically wanted freeze protection for plumbing runs in exterior walls and vaulted ceilings.
A blown-in top-up with air sealing offers the best return for rental properties in Schertz’s military-transient market. It reduces HVAC runtime and tenant complaints about uneven temperatures without the higher cost of full removal or wall insulation. The 365-Day Done Right Promise transfers to the property, not the occupant, and your documented photo record supports any future sale or refinance appraisal. Most Schertz landlords recover the investment through reduced maintenance calls and lower utility bills during vacancy periods.
We evaluate degraded radiant-barrier decking during every attic inspection. If the foil facing has oxidized or the OSB shows moisture staining, we note it in your written scope but typically leave it in place unless structural replacement is needed. The insulation layer becomes more important as the reflective surface degrades, so we often specify a higher R-value target for top-ups on 15-20 year old Schertz decking than we would on new construction. Your written price includes the target R-value and the measured depth we’ll install to achieve it.
Written by Wes Okafor, Owner at Topside Attic Insulation Canyon Lake, serving Schertz since 2016 under The Haven Standard.