Fast, Reliable Blown-In Insulation Across New Braunfels
Most blown-in insulation jobs in New Braunfels run $1,800-$3,400 for a typical attic top-up and $3,200-$5,800 for full removal and replacement with air sealing. We’re usually on-site in New Braunfels within 24-48 hours of your call, and same-day starts are common for attic work. Dispatch and scheduling run through our San Antonio office, but our crews live and work in the New Braunfels area - we know the difference between a 2019 build in Veramendi and a 2015 build in Vintage Oaks, and we know what the attics in each actually look like. Call (737) 227-6219 to schedule a free estimate with a written price before any work starts.
Why Topside Attic Insulation Canyon Lake Is New Braunfels’s Preferred Blown-In Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a growing share of them are in New Braunfels - particularly the master-planned communities that went up fast along FM-306 and SH-46 in the 2010s and 2020s. Homeowners there leave reviews that mention the same thing: we showed them photos of what their attic actually looked like, gave them a written price before anyone touched a tool, and handed them blower-door numbers proving the air sealing worked.
Our response time to New Braunfels averages same-day or next-day, and we don’t use callback windows measured in business days. A live person answers calls 24/7. That’s Haven Standard Clause 1 - flat price, written scope, written warranty before anyone lifts a tool.
We understand the local building patterns: slab-on-grade production homes with 2×4 or 2×6 framing, unconditioned attics that hit 140°F in July, and the occasional historic limestone structure in Gruene that needs vapor management, not just more R-value. Our New Braunfels crews carry both cellulose and fiberglass blowing rigs, plus dense-pack equipment for wall retrofits.
Our Blown-In Insulation Services in New Braunfels
Blown-In Cellulose
We use GreenFiber cellulose for most New Braunfels attic top-ups - it’s treated with borate for fire and pest resistance, and it performs well in the Hill Country’s combination of extreme heat and hard-freeze risk. Cellulose settles less than loose fiberglass over time, and it air-seals better around irregular joist bays and penetrations. For a typical 2,400-square-foot production home in the SH-46 corridor, a cellulose top-up from R-22 to R-49 runs $1,800-$2,800 and takes one day.
Blown-In Fiberglass
We stock Owens Corning and Johns Manville blown fiberglass for homeowners who prefer it, or for attics where moisture history makes cellulose less suitable. Fiberglass doesn’t hold moisture, which matters in some of the older homes near downtown New Braunfels with vented attics and marginal soffit airflow. We never blow fiberglass over unsealed top plates or can lights - our Blown-In Insulation team seals first, then insulates.
Dense-Pack Wall Insulation
This is the service most New Braunfels homeowners don’t know they need. Production homes built 2015-2022 often have empty or poorly filled exterior wall cavities - the insulation crew ran short on a Friday afternoon, or the plumber pulled batts to run pipe and never replaced them. We dense-pack walls with cellulose through drilled access holes, filling every bay to 3.5 pounds per cubic foot. It’s a two-day job for a typical home, running $2,800-$4,200, and it’s the only way to address the wall insulation failures that Winter Storm Uri exposed.
Blown-In Top-Up
This is our most common New Braunfels service, and it’s not what most homeowners expect. Your house is seven years old. It was “built to code.” But the R-30 in your attic has settled to R-22 or lower, and the HVAC contractor who replaced your coil last summer walked all over it. A blown-in top-up brings you to R-49 or R-60 without removing what’s there - assuming the existing material is dry and uncontaminated. Most top-ups in New Braunfels run $1,800-$3,400 and include air sealing of top plates, can lights, and penetrations before the new material goes in.
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 New Braunfels
We source materials from Owens Corning, Johns Manville, Knauf, and GreenFiber - no proprietary product lock-in, no brand exclusivity that limits what’s best for your specific attic. Our New Braunfels crews carry cellulose and fiberglass on every truck, so the decision happens on-site after we see what you’ve got, not in a sales office before we arrive. Fast turnaround means we don’t order material to a warehouse and reschedule; we stock what we need and start when we say we will.
Common Blown-In Insulation Problems We See in New Braunfels Homes
- Settled R-30 in 5-to-8-year-old production homes. In subdivisions off FM-306 and the SH-46 east corridor, builder-grade blown fiberglass has compressed and been disturbed by subsequent trade work. The label says R-30; the reality is often R-20-22. Homeowners who bought new construction expecting efficiency are running HVAC systems near-continuously in July.
- Crushed or skipped insulation near door headers and unconditioned shop bays. New Braunfels’s acreage properties - particularly out toward Canyon Lake - often have detached workshops with oversized bays. Original builders frequently blew material thin around headers and HVAC platforms, or skipped it entirely above unconditioned spaces. The shop runs 15-20 degrees hotter than the house.
- Baked and desiccated top layers in poorly vented attics. Hill Country attic temperatures past 140°F degrade the top few inches of loose fill over time. Cellulose can dry out and lose density; fiberglass batts slump. Both problems are invisible from the attic hatch but show up in summer electric bills.
- Wall cavities left empty or pulled for trade access. The 2021 freeze proved how little protection builder-grade wall insulation actually provides. In fast-built New Braunfels subdivisions, we regularly find exterior walls with missing batts, compressed batts around plumbing, or bays that were never filled to begin with.
Pricing for Blown-In Insulation in New Braunfels, TX
| Service | Typical Range in New Braunfels | What Affects Price |
|---|---|---|
| Blown-In Top-Up (attic, R-22 to R-49) | $1,800 - $3,400 | Attic square footage, accessibility, amount of air sealing needed |
| Full Attic Removal + Replacement with Air Sealing | $3,200 - $5,800 | Existing material condition, contamination, decking repairs |
| Dense-Pack Wall Insulation | $2,800 - $4,200 | Wall cavity count, exterior finish type, interior access requirements |
| Detached Shop/Workshop Attic | $1,200 - $2,600 | Size, existing insulation condition, whether HVAC platform needs sealing |
Every job begins with a written price - no work starts without it. That’s Haven Standard Clause 1. We also offer a Free Second Opinion on any written estimate from another contractor; bring us their scope and we’ll read it with you. Call (737) 227-6219 for your written estimate.
We Also Serve Cities Near New Braunfels
Our crews work throughout the corridor: Seguin to the east, Cibolo and Schertz to the north, and Canyon Lake to the north and west. The acreage properties and detached shops between New Braunfels and Canyon Lake are a significant share of our work - longer drives, heavier-duty setups, and homeowners who want it done right in one trip.
Serving New Braunfels, TX - Our Local Coverage Area
We’re based in the New Braunfels 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 New Braunfels
Because “built to code” in 2017-2019 meant R-30 blown fiberglass, and that material has likely settled to R-20-22 after trade traffic and gravity. We see this constantly in Vintage Oaks, Veramendi, and the SH-46 corridor subdivisions - homes that are barely a decade old with attics that perform like they’re thirty. The code minimum was never designed for 140°F Hill Country attics or near-continuous July HVAC runtime. Call (737) 227-6219 and we’ll show you what your attic actually measures.
Cellulose usually wins for attics that see both extreme heat and hard freezes - it air-seals better around penetrations, settles less over time, and the borate treatment resists pests common in Hill Country rural properties. Fiberglass makes sense if your attic has a moisture history or marginal ventilation. We stock both and decide on-site, not in a sales pitch. Call (737) 227-6219 for an assessment.
Newer production homes are often the best candidates for dense-packing. Empty or poorly filled wall cavities are common in 2015-2022 builds - the insulation crew ran short, or the plumber pulled batts and never replaced them. We drill access holes, fill every bay to 3.5 pounds per cubic foot with cellulose, and patch the holes. It’s a proven fix for the freeze exposure Uri revealed. Call (737) 227-6219 for a wall assessment.
Yes - those properties are a core part of our New Braunfels work. We were out on a job in the Vintage Oaks area on the far north side, where a homeowner kept a detached workshop and a heavy double-door bay behind the house - the kind of setup where the garage and shop run hotter than the house itself. Our tech crawled the shop attic and found the builder’s blown fiberglass blown thin and shoved aside around the HVAC platform and a ridge of settled material over the door header, so we pulled the loose material back, air-sealed the top plates and penetrations, then topped the shop and house attic to R-49 with GreenFiber cellulose. Owner measured his shop thermometer dropping into the low 90s on a 103°F afternoon and hasn’t had the mini-split run wide open since. Call (737) 227-6219 to schedule.
Check three things: your summer electric bills against neighbors with similar homes, whether your HVAC runs continuously on 100°F afternoons, and whether you can see floor joists poking through the insulation from the attic hatch. If two of three are yes, you likely need an assessment. We’ll photograph what we find, run a blower-door test if air sealing is involved, and give you a written price before any work starts. Call (737) 227-6219 for a free estimate.
Ready to fix the attic that was never actually finished to the label? Call (737) 227-6219 for a free estimate with a written price before any work starts. Our New Braunfels crews carry everything needed for blown-in cellulose, fiberglass, and dense-pack wall work - one trip, documented results, and a 365-Day Done Right Promise on every job.
Written by Wes Okafor, Owner at Topside Attic Insulation Canyon Lake, serving New Braunfels since 2016.