Fast, Reliable Attic Insulation Across Cibolo
Most attic insulation jobs in Cibolo run $1,800-$4,200 depending on whether we’re topping up settled fiberglass or stripping and re-doing the deck, and our crews are typically on-site within 24-48 hours of your call. We’re familiar with the production-built subdivisions that dominate this market - the D.R. Horton and Lennar clusters along FM 78, the KB Home developments stretching toward IH-35, the mid-2000s neighborhoods near JBSA-Randolph where blown-in fiberglass was installed to code-minimum depth and has since settled hard. If your HVAC runs constantly through August or your upstairs rooms won’t cool below 78°F, the problem is usually in the attic, not the condenser. Call (830) 420-0953 for a free written estimate - we dispatch from our San Antonio office and serve Cibolo homes directly.
Why Topside Attic Insulation Converse Is Cibolo’s Preferred Attic Insulation Company
We’ve worked in enough Cibolo attics to know the pattern before we pull the hatch. The post-2000 production homes that make up nearly this entire city were built fast, passed inspection at minimum IRC depth, and left homeowners assuming “new construction” meant well-insulated. It didn’t. Our reviews from Cibolo customers consistently mention the same thing: they finally understand why their power bills were so high after seeing our before-and-after documentation.
Response time to Cibolo is same-day or next-day for most calls, with scheduling coordinated from our San Antonio dispatch office. We don’t ask you to wait in a callback queue - a live person answers the phone 24/7, and you’ll get a text when your technician is en route with a name and photo.
Our local knowledge runs deeper than zip codes. We know which Cibolo subdivisions used which builders, which years had the thinnest attic installs, and where the eave-edge depth collapse is worst. That matters because it lets us quote accurately and show up with the right baffles, the right air-sealing strategy, and the right insulation for your specific assembly - not a generic guess.
Our Attic Insulation Services in Cibolo
Blown-In Attic Insulation
We install blown-in fiberglass and Blown-In Insulation - Cibolo cellulose across Cibolo, but on most local jobs we prefer cellulose - specifically GreenFiber - for its better resistance to wind-washing at eave edges and its ability to fill irregular joist bays in production-framed attics. Blown-in attic insulation in Cibolo typically costs $2,200-$3,800 for a full deck replacement on a 2,000-square-foot home, or $1,800-$2,800 for a top-up over existing material that has settled but remains in decent condition. Every blown-in job includes new baffles at soffit bays to prevent the edge-thinning that ruined the original install.
Attic Batt Insulation
Batt insulation in Cibolo attics is usually a repair or targeted upgrade, not a full-deck solution - the joist spacing in local production homes is rarely uniform enough for clean batt fit without gaps. We use Knauf and Johns Manville batts for kneewalls, storage platform perimeters, and dropped soffit areas where blown material won’t stay put. A typical batt repair in a Cibolo attic runs $400-$900. We cut each piece to the actual bay width, not the nominal dimension, because compressed batts lose R-value fast.
Attic Insulation Top-Up
This is our most common Cibolo service. The original blown-in fiberglass in your 2005-2015 production home settled 30-40% below its labeled depth, and the middle of your attic probably reads R-20-R-25 while the eaves read near zero. An attic insulation top-up in Cibolo runs $1,800-$2,800 for most homes. We rake the existing material flat, air-seal all top plates and penetrations first, install baffles where they’re missing, then blow new material to a uniform settled depth. You keep the old insulation as a base layer - no removal cost, no landfill trip.
Attic Insulation Replacement
When the original fiberglass is contaminated, water-stained, or distributed so unevenly that raking won’t help, we strip the deck and start clean. Attic insulation replacement in Cibolo costs $3,200-$4,800 for a typical 2,000-square-foot home, including removal, disposal, air sealing, baffles, and new blown-in cellulose to R-38 settled depth or better. You get a Documented Photo Record of the empty deck, the sealed penetrations, and the finished install.
Attic Baffles & Ventilation Prep
Cibolo’s Climate Zone 2A heat and Gulf Coast humidity make ventilation prep non-negotiable. Most local production homes were built with too few baffles, cheap cardboard that collapsed, or none at all - so soffit intake air winds through the insulation instead of below it, scouring the eave edges bare and carrying moisture into the deck. We install rigid Owens Corning Raft-R-Mate baffles at every soffit bay, sealed to the deck, before any insulation goes in. Attic baffles and ventilation prep as a standalone service runs $600-$1,400 in Cibolo, though we bundle it into every full insulation job at no separate charge.
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.
Before
AfterTrusted Brands We Service in Cibolo
We source from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in, no house brand pushed for margin. For Cibolo’s hot-humid climate and production-framed attics, we typically specify GreenFiber blown-in cellulose for top-ups and full replacements, Owens Corning rigid baffles for ventilation prep, and Knauf or Johns Manville batts for targeted repairs. We stock these materials locally, so there’s no multi-week wait for special orders. If you’ve got a preference or a prior install with a specific product, we’ll match it or explain why we’d recommend a change - in writing, before any work starts.
Common Attic Insulation Problems We See in Cibolo Homes
- Settled blown-in fiberglass below effective R-30. The R-38 tag stapled at your attic hatch was accurate at inspection in 2006. By 2012, that material had settled 30-40%. By now, the middle of your Cibolo attic is probably performing at R-22-R-25, and the edges are far worse. The tag is not the reality.
- Eave-edge depth collapse from missing or failed baffles. In subdivisions near JBSA-Randolph and along FM 78, we regularly find soffit wind-washing has scoured insulation back from the eave line by two to four feet. That’s your thermal bridge - the coldest part of the roof deck in winter, the hottest in summer - and it’s practically uninsulated.
- Compressed wall batts pushing load to the attic. Production builders in Cibolo’s 2000s boom often stuffed R-13 batts into 2×4 walls with drywall forced over bulges. Those batts are compressed to R-9 or less, meaning your attic deck is carrying more thermal load than it was ever designed for.
- Air leaks at top plates and can lights undoing whatever R-value remains. Even “well-insulated” Cibolo attics leak conditioned air through unsealed top plates, recessed light housings, and duct chases. A blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - typically finds 3,500-5,500 CFM50 in these homes before we seal. After proper air sealing and insulation, that number usually drops 40-60%.
Pricing for Attic Insulation in Cibolo, TX
Here’s what attic insulation costs in Cibolo’s current market, based on jobs we’ve completed in the past 18 months:
| Service | Typical Range |
|---|---|
| Attic insulation top-up (blown-in cellulose over existing) | $1,800 - $2,800 |
| Full attic insulation replacement (remove, seal, re-insulate) | $3,200 - $4,800 |
| Blown-in attic insulation (new construction or empty deck) | $2,200 - $3,800 |
| Attic baffles and ventilation prep (standalone) | $600 - $1,400 |
| Attic batt repair (targeted, per area) | $400 - $900 |
What moves you within these ranges: attic square footage, current insulation condition, whether removal is needed, accessibility (steep roof pitch, limited hatch size), and whether we find air leaks that need sealing before insulation goes in. We don’t guess at the price - we inspect, measure, and give you a written flat price before any work starts. That’s Haven Standard Clause 1. Bring us a competing written estimate and we’ll give you a free second opinion, line by line. Call (830) 420-0953 to schedule.
We Also Serve Cities Near Cibolo
Our crews work throughout the I-35 corridor and northeast Bexar County, including Cibolo and neighboring Schertz, Universal City, Converse, and New Braunfels. If you’re searching for Attic Insulation in any of these communities, the same pricing structure, same materials, and same documentation standards apply.
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 - Attic Insulation in Cibolo
Because “new” in 2006 meant built to 2006 IRC code minimum with blown-in fiberglass installed to pass inspection, not to perform long-term. That fiberglass settled 30-40% within five to seven years, and the eave edges likely lost depth to wind-washing immediately. Your 2006 home now has the thermal performance of a poorly insulated 1990s house. Call (830) 420-0953 and we’ll measure the actual depth - estimates are free.
R-38 is the code minimum, not the performance optimum. In Cibolo’s Climate Zone 2A, where attic temperatures exceed 140°F for months and Gulf humidity drives inward vapor pressure, R-38 only works if it’s actually present at full depth everywhere, including the eaves, and if the attic is properly air-sealed. Most local homes fail both conditions. We typically recommend R-44 to R-49 settled depth for Cibolo, achieved through proper air sealing, baffles, and uniform blown-in coverage - not just a bigger number, but a properly executed assembly.
Because your builder didn’t install proper baffles, or installed cardboard ones that collapsed. Soffit intake air is blowing through your insulation at the eave line, scouring it back toward the center of the attic. This is nearly universal in Cibolo’s mid-2000s subdivisions. The thick middle gives a false sense of security; the thin edges are where your biggest heat gain and loss happen. We fix this by cutting and sealing rigid baffles at every soffit bay before adding insulation. Call (830) 420-0953 for an inspection.
Both, but only if air sealing is done first. Humidity enters Cibolo attics through the same leaks that let conditioned air escape - top plates, can lights, duct chases, and the hatch itself. Blowing insulation over unsealed leaks traps moisture in the assembly and can worsen problems. Our Attic Insulation process seals first, then insulates, so the humidity load on your HVAC drops along with the temperature load. Homeowners in Cibolo’s newer subdivisions near Schertz Parkway and Cibolo Valley Drive report both cooler summers and less indoor stickiness after we complete the work.
Usually no. If the existing fiberglass is dry, uncontaminated, and merely settled, we rake it flat to serve as a base layer, then blow new cellulose over it. This saves $800-$1,500 in removal and disposal costs. We only strip the deck if there’s water staining, rodent activity, or heavy dust contamination from deteriorated ductwork - and we’ll show you photos so you can see why. Every job gets a Documented Photo Record either way. Call (830) 420-0953 and we’ll tell you which category your attic falls into.
Written by Wes Okafor, Owner at Envelope Insulation Co., serving Cibolo and the greater San Antonio metro since 2016.