Fast, Reliable Blown-In Insulation Across Cibolo
Blown-in insulation in Cibolo typically runs $1.80-$3.20 per square foot of attic floor, with most complete attic jobs falling between $2,400 and $4,800 for the tract-style two-story homes that make up nearly the entire city. We dispatch crews daily from our San Antonio office and can usually inspect your attic within 24-48 hours of your call. If you’re in Bentwood Ranch, Cibolo Crossing, or any of the post-2000 subdivisions that define this city, your home was almost certainly built to Texas minimum code with R-30 blown fiberglass that has now settled well below its original rating. Call (830) 243-6352 for a free attic depth check and written price before any work starts.
Why Topside Attic Insulation New Braunfels Is Cibolo’s Preferred Blown-In Insulation Company
We’ve worked in enough Cibolo attics to recognize the exact construction era from the hatch - the 2006-2012 tracts share the same blown fiberglass batch, the same unsealed top plates, the same can-light thermal bypasses. Our crews know the difference between a Bentwood Ranch build and a late-2010s Cibolo Crossing phase without checking the permit date.
Our reviews from Cibolo homeowners consistently mention two things: the written price they received before anyone touched their attic, and the photo documentation they walked away with. No voicemail loops - a live person answers our line 24/7, and we text you when your technician is en route under Haven Standard: Arrive on schedule.
Response time to Cibolo is typically same-day or next-day for inspections, with most blown-in top-up and dense-pack jobs completed in a single visit. We don’t subcontract attic work to rotating crews; the technician who writes your scope is the one who performs the blower-door test and signs off on the photo record.
Our Blown-In Insulation Services in Cibolo
Blown-In Cellulose
Cellulose works well in Cibolo’s large unconditioned attics because it packs tighter into irregular joist bays and settles less than fiberglass over time. We source from GreenFiber and other established mills, blowing it to the density that resists the 150°F-plus attic heat that punishes Cibolo homes from June through September. For homeowners coming off a brutal CPS Energy summer bill, cellulose often makes sense as a full replacement where builder-grade fiberglass has degraded past recovery.
Blown-In Fiberglass
This is the material already in your Cibolo attic, and in many cases it’s the right choice for a top-up. We stock Owens Corning and Johns Manville systems, blowing to calibrated depth with marked rulers visible from the hatch so you can verify what was installed. In the 2000s tracts around Cibolo, we regularly find original fiberglass compressed to 7-8 inches - roughly R-19, not the R-30 the builder claimed. A fiberglass top-up restores the full thermal barrier without the cost of full removal.
Dense-Pack Wall Insulation
Cibolo’s two-story tract homes were built with hollow exterior wall cavities - standard practice for speed, miserable for performance. Dense-pack fills these cavities with blown cellulose or fiberglass at pressure, eliminating the convective loops that let outdoor heat (and February freeze air) circulate inside the wall. We dense-pack from the interior or exterior depending on your finish, and we always seal the attic top plates first so the wall insulation isn’t fighting an open path into the attic volume.
Blown-In Top-Up
This is our most common Cibolo service. Your attic has insulation; it just doesn’t have enough anymore. We probe depth across multiple bays, photograph the findings, and blow additional material to restore full R-value - typically R-38 to R-49 for this climate zone. The whole job usually takes four to six hours, and you get the before-and-after photos, the written scope, and the blower-door numbers if air sealing is part of the work.
What happens when you call
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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 Cibolo
We don’t lock you into proprietary products. Our Cibolo jobs pull from Owens Corning, Johns Manville, GreenFiber, and Demilec - brands we stock locally so we’re not waiting on freight while your attic stays open. If you have a preference based on prior research or a neighbor’s recommendation, we specify it in the written scope. No brand pays us for placement, and we don’t claim exclusive status with any manufacturer.
Common Blown-In Insulation Problems We See in Cibolo Homes
- Settled builder-grade fiberglass. That R-30 blown in during the 2006 build year has compacted to effective R-19 or less. Nothing looks wrong from the hatch, so homeowners assume the original rating still holds. An attic depth check - simple, non-invasive - almost always proves otherwise.
- Unsealed thermal bypass at top plates and can lights. Even fresh blown-in insulation can’t block air movement through gaps around electrical penetrations and the wall-to-attic junction. In Cibolo’s slab-on-grade homes with big attic volumes, this bypass is the primary driver of upstairs heat gain and winter pipe freeze risk.
- Garage-attic boundary failures. The cheap gasket and shortcut framing where your garage ceiling meets the conditioned space lets 150°F attic air walk straight into your upstairs hallway. Same path works in reverse during a Uri-style freeze, which is why Cibolo homeowners who suffered burst pipes in 2021 often find the break occurred above this exact boundary.
- Hollow wall cavities in two-story layouts. Your exterior walls were built empty for speed. Without dense-pack fill, they’re convective chimneys moving outdoor temperature directly into your bedrooms while your HVAC runs overtime.
Pricing for Blown-In Insulation in Cibolo, TX
Most blown-in attic top-ups in Cibolo run $2,400-$3,800 for a typical 2,400-square-foot two-story tract home. Full attic replacement with removal of degraded fiberglass and new blow-in to R-38 typically falls between $3,800 and $5,600. Dense-pack wall insulation adds $1.20-$2.00 per square foot of wall area, so a complete two-story exterior wall fill usually ranges $3,200-$5,400 depending on cavity height and access.
What moves the number: attic square footage, current insulation depth, whether removal is required, and how much air sealing (top plates, can lights, garage boundary) the blower-door test reveals. We don’t guess. We probe, we photograph, we test if indicated, and we give you a flat written price before any work starts - Haven Standard Clause 1. Free second opinion on any competing written estimate. Call (830) 243-6352 to schedule.
We Also Serve Cities Near Cibolo
Our crews work daily in Schertz, Universal City, Converse, and New Braunfels - the same post-2000 tract housing, the same builder-grade insulation stories, the same 150°F attics. If you’re in one of these neighboring cities, Cibolo is our closest dispatch point and we can typically reach you same-day. Our Blown-In Insulation team covers the full Guadalupe Valley corridor.
Serving Cibolo, TX - Our Local Coverage Area
We’re based in the Cibolo 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 Cibolo
No. The R-30 blown fiberglass installed during your build has almost certainly compacted to R-19 or below after nearly 20 years of 150°F attic cycling. We find this in virtually every Bentwood Ranch and Cibolo Crossing home of that era. A simple depth check takes 10 minutes and requires no special equipment. Call (830) 243-6352 for a free inspection and written price.
Because “insulated” doesn’t mean sealed. Your blown-in material blocks conductive heat but not convective airflow through unsealed top plates, can lights, and garage-attic boundaries. In Cibolo’s two-story slab homes with large attic volumes, that bypass path overwhelms the insulation’s rated performance. We seal first, then insulate - in that order.
Yes. Cibolo’s construction era and exposure profile differ from both. Houston’s older housing stock has different failure modes; San Antonio’s inner-ring homes often have conditioned attics or different roof geometries. Cibolo’s mid-2000s tracts with large unconditioned attics and unsealed penetrations suffered pipe freezes above garage ceilings and in upstairs walls that San Antonio builders rarely see. Your insulation plan needs to address both the 150°F summer attic and the sub-10°F air that can drop through the same bypass paths in a hard freeze.
A properly sealed and blown attic reduces the temperature differential across your ceiling plane, which directly lowers your CPS Energy cooling load and reduces the freeze risk to pipes and HVAC equipment in attic-adjacent spaces. In real numbers: we’ve seen blower-door readings drop from 4,200 CFM50 to 2,100 CFM50 after sealing and top-up, which translates to measurable electric bill reduction and more consistent upstairs temperatures. You get the before-and-after numbers in writing.
We stock Owens Corning and GreenFiber for Cibolo jobs, and we can source Johns Manville or Demilec if your scope calls for it. We specify the exact product, lot, and installed depth in your written scope before work starts - no substitutions without your approval. Bring us a competing quote specifying a different brand; we’ll read it with you and explain where the material choice affects performance versus where it affects only the sales pitch.
Ready to find out what your Cibolo attic actually holds? Call (830) 243-6352 for a free attic inspection, written price, and documented photo record - no work starts until you have all three in hand.
Written by Wes Okafor, Owner at Topside Attic Insulation New Braunfels, serving Cibolo since 2016.