Trusted Blown-In Insulation for New Braunfels Homeowners
Blown-In Insulation in New Braunfels typically costs between $1,800 and $4,200 for a standard attic, depending on square footage, existing insulation depth, and whether air sealing is needed first. Most jobs are completed in a single day, and crews can often be on-site within 48 hours of your call. Call (830) 243-6352 to get a written price before any work starts.
We’ve sealed and insulated more than 9,000 homes since 2016, and we’ve learned that blown-in insulation fails when it’s installed over an unsealed attic floor. In New Braunfels, where summer attic temperatures regularly exceed 140 degrees and winter cold fronts drop overnight lows into the 20s, that failure shows up as uneven room temperatures, HVAC systems that run constantly, and energy bills that climb year over year. We don’t blow insulation until we’ve sealed the top plates, can lights, and every penetration with documented blower-door proof. Under The Haven Standard, you get a written price, a written scope, and a written warranty before anyone lifts a tool.
What Our Blown-In Insulation Service Includes
Blown-In Cellulose
Blown-in cellulose is ground paper fiber treated with borate fire retardant, dense-packed to resist airflow and settled settling. In New Braunfels, we specify cellulose for homeowners who want the highest recycled content and strong resistance to the Hill Country’s occasional humidity spikes. We source cellulose from GreenFiber, among other suppliers, and we never install it without first sealing the attic floor. Our crews document the pre-installation blower-door number, the post-sealing number, and the final post-insulation number so you can see the actual performance change.
Blown-In Fiberglass
Blown-in fiberglass is spun glass fiber, lighter than cellulose and less prone to absorbing moisture in vented attics. We recommend it for New Braunfels homes with complex attic geometry, multiple HVAC platforms, or limited structural load capacity. We’ve worked extensively with Owens Corning and Johns Manville fiberglass systems, matching the product to the application rather than forcing a one-size-fits-all approach. Every fiberglass job includes the same pre-sealing protocol: top plates, electrical penetrations, bath fan housings, and any chase openings get sealed before the blower truck arrives.
Dense-Pack Wall Insulation
Dense-pack wall insulation is blown-in material, cellulose or fiberglass, installed at high density into closed wall cavities through exterior holes or interior access points. In New Braunfels neighborhoods like Copper Ridge, Voss Farms, and the older sections of downtown, we use dense-pack to retrofit insulation into uninsulated 2×4 walls without full gut renovation. The key is controlling density, too loose and the material settles; too tight and the wall bulges. We calculate fill rate by cavity volume and verify with thermal imaging after installation. This is not a DIY application. The pressures involved can damage drywall or electrical if mishandled.
Blown-In Top-Up
Blown-in top-up adds material over existing insulation to restore or increase R-value where the original layer has compressed, settled, or been disturbed by prior work. In New Braunfels, we see this need frequently in homes built between 2005 and 2015 where original fiberglass batts were installed to minimum code and have compressed to half their labeled thickness. We don’t top up over degraded or contaminated insulation. If we find rodent activity, moisture staining, or disturbed vermiculite, we remove first, then seal, then insulate. The photo record from your initial inspection shows you exactly what we found and what we did about it.
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.
Brands We Service for Blown-In Insulation
We source blown-in insulation materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. With Owens Corning, we’ve installed their ProPink Loosefill system in hundreds of New Braunfels attics, particularly in the Canyon Lake and Bulverde areas where homeowners want the moisture resistance of fiberglass in seasonal vacation homes. Their L77 blowing wool at R-38 depth gives predictable coverage rates we’ve verified across dozens of jobs.
GreenFiber cellulose is our go-to for homeowners prioritizing recycled content and fire safety, their borate treatment meets ASTM E84 Class A without chemical irritants that can affect sensitive occupants. We’ve also worked extensively with Demilec open-cell spray foam for hybrid applications where blown-in needs supplemental air sealing at complex junctions. Whether your existing insulation is Owens Corning, Johns Manville, or any other make, we can assess its condition, match or upgrade the material, and document the improvement with before-and-after blower-door numbers.
Before
AfterSigns You Need Blown-In Insulation Right Now
- Your upstairs rooms run 8-12 degrees hotter than downstairs in July. In New Braunfels, this temperature split is the most common symptom of an underinsulated attic. Heat radiates through the ceiling faster than your HVAC can compensate, and the system runs longer without ever catching up. We measure the actual temperature differential during our inspection and compare it to post-work readings.
- Your energy bill climbs every summer despite no rate increase. CPS Energy rates have been relatively stable, but if your usage is trending up, your building envelope is leaking more conditioned air than it should. Blown-in insulation without air sealing won’t fix this. We test first, seal second, insulate third.
- You can see floor joists through your attic insulation. Current IECC code for New Braunfels calls for R-38 to R-49 in attics, depending on construction date. If your insulation sits below the joist tops, you’re under code and underperforming. We measure depth at multiple points and photograph every reading.
- Your HVAC contractor has suggested a larger unit. An oversized AC cycles on and off, dehumidifies poorly, and costs more to operate. Before you upsize equipment, verify that your envelope isn’t the real problem. We’ve had New Braunfels homeowners cancel equipment purchases after proper sealing and insulation dropped their cooling load by 25-35%.
- Ice dams formed on your roof last winter. Rare but not impossible in New Braunfels during hard freezes. Ice dams mean warm air is escaping through the attic, melting snow at the ridge, which refreezes at the eave. The water backup damages shingles, fascia, and interior drywall. Air sealing and proper insulation depth eliminate the temperature differential that causes them.
Our Blown-In Insulation Process - Step by Step
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Schedule and arrival. You call (830) 243-6352 and speak to a live person, 24/7. We book a two-hour arrival window, not an all-day wait. Your technician texts when en route, arrives in a marked vehicle, and begins with a walkthrough of your concerns.
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Attic inspection and documentation. We photograph existing insulation depth, condition, and any problem areas. We identify thermal bypasses, can light penetrations, top plate gaps, and chase openings. You see what we see, no hidden findings.
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Blower-door test and air sealing. We run a blower-door test, a pressurization reading that shows, in one number, how much air your building envelope is losing. Typical pre-sealing numbers in New Braunfels homes range from 3,500 to 6,000 CFM50. We seal all accessible leaks, then retest. You get both numbers in writing.
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Blown-in insulation installation. We calculate exact material volume by square footage, target R-value, and settled density. The crew installs to uniform depth, avoiding obstruction of soffit vents, maintaining clearance around combustion appliances, and protecting recessed light housings. We photograph completed coverage.
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Final testing, documentation, and walkthrough. Where applicable, we run a final blower-door test to verify the complete envelope improvement. You receive a written scope of work, before-and-after photos, blower-door readings, and your warranty documentation. Under Haven Standard: Have it in writing.
How Much Does Blown-In Insulation Cost in New Braunfels?
A typical blown-in fiberglass top-up in a 1,800-square-foot New Braunfels attic runs Blown-In Insulation pricing at $1,800-$2,800. Full removal, air sealing, and new blown-in cellulose in the same space runs $3,200-$4,800. Dense-pack wall insulation for a 2,000-square-foot home with 2×4 construction typically falls between $2,800-$4,200, depending on exterior siding type and interior finish condition.
Several factors move the price. Attic accessibility matters: a steep 12/12 pitch with limited hatch access takes longer and costs more than a walk-up attic with permanent stairs. Existing insulation condition determines whether removal is needed, contaminated or compressed material adds labor and disposal fees. The extent of air sealing required is the biggest variable, a home with 80 can lights and extensive top plate gaps needs more prep work than one with a tight, simple attic floor. Finally, target R-value affects material volume; jumping from R-19 to R-38 takes roughly double the material of topping up from R-30 to R-38.
To avoid overpaying, get competing quotes in writing and compare scope, not just bottom-line price. A lower bid that skips air sealing or uses lower-density installation will cost more in energy bills over five years than a properly scoped job. We offer a Free Second Opinion on Any Written Estimate, bring us a competing quote and we’ll read it with you, line by line. Every estimate we provide includes a flat price, written scope, and written warranty before anyone lifts a tool. Call (830) 243-6352 for your written estimate.
Blown-In Insulation Near New Braunfels - Our Service Area
We serve New Braunfels and surrounding communities with typical response times of same-day to 48 hours depending on season and scope. Our regular service area includes Cibolo, Seguin, Schertz, Selma, Universal City, Canyon Lake, Live Oak, Converse, Bulverde, Windcrest, and Timberwood Park. Homes in the Canyon Lake hills or the Bulverde ranch tracts sometimes require scheduling flexibility for equipment access, but we don’t charge travel fees within this radius. For homeowners in Selma or Live Oak comparing options, we also provide blown-in insulation in New Braunfels with the same written-price guarantee and documented photo record.
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.
Frequently Asked Questions - Blown-In Insulation in New Braunfels
Blown-in insulation is loose fiber material, cellulose or fiberglass, installed with a blower hose to fill attic floors, wall cavities, or irregular spaces. It conforms around obstructions like wiring and ductwork better than batt insulation, and it allows precise depth control for target R-value. In New Braunfels, we use blown-in as our standard attic treatment because it seals against the Hill Country’s temperature extremes when paired with proper air sealing first.
Most attic jobs are completed in one day, typically 4-6 hours for a standard home after air sealing is complete. Dense-pack wall insulation takes longer, usually 1-2 days depending on exterior siding type and the number of cavities. We give you a specific time estimate in your written scope, not a range that balloons on arrival day.
Attic top-ups run $1,800-$2,800, full removal and replacement with air sealing runs $3,200-$4,800, and dense-pack walls run $2,800-$4,200 for typical homes. Your exact price depends on square footage, accessibility, existing condition, and target R-value. Call (830) 243-6352 for a written estimate with a flat price, no obligation.
Yes, we install and upgrade Owens Corning and Johns Manville blown-in systems regularly, and we source materials from both brands among our supplier network. We don’t push proprietary products or exclusive relationships. The right material for your home depends on your attic conditions, not our supplier incentives.
We answer calls 24/7 through a live person, not voicemail. True insulation emergencies are rare, but we treat urgent situations, like post-storm water intrusion into attic insulation or sudden HVAC failure traced to envelope problems, with same-day or next-day response. For scheduled work, we typically book within 48 hours.
All completed work is covered by our 365-Day Done Right Promise, if it’s not done right, we make it right. The specific warranty term for materials comes from the manufacturer, Owens Corning and Johns Manville both carry limited lifetime warranties on their loosefill products when installed to specification. Your written warranty documentation specifies both our workmanship guarantee and the material coverage.
Clear attic hatch access and remove stored items from the work area. We cover floors and furniture with protection, but fragile items should be moved beforehand. For dense-pack wall work, we’ll discuss furniture placement and wall hanging removal during the pre-work walkthrough. Pets should be secured away from the work zone. You’ll receive a preparation checklist in your written scope before installation day.
Schedule Your Blown-In Insulation Service in New Braunfels Today
Call (830) 243-6352 to speak with a live person, 24/7, and schedule your free estimate. You’ll get a written price before any work starts, a documented photo record when the crew leaves, and before-and-after blower-door numbers on every applicable job. The 365-Day Done Right Promise applies to everything we do. No voicemail loops, no callback windows measured in business days.
Written by Wes Okafor, Owner at Topside Attic Insulation New Braunfels, serving New Braunfels since 2016.