Trusted Wall Insulation for New Braunfels Homeowners
Our Wall Insulation cost guide shows that work in New Braunfels typically runs $2,800-$7,500 for a whole-home retrofit, depending on wall construction, square footage, and whether the home has existing insulation that needs removal. Most jobs we complete in the New Braunfels area are finished in one to two days, with crews arriving from our Comal County base. Call (830) 243-6352 for a written price before any work starts.
We’ve sealed and insulated more than 9,000 homes since 2016, and our Wall Insulation - New Braunfels jobs follow a clear pattern. Homes built between 1980 and 2005, especially in neighborhoods like Gruene, River Chase, and the older sections of Copper Ridge, were often constructed with empty stud cavities or thin batt insulation that has settled, compressed, or simply wasn’t installed completely around plumbing and electrical boxes. The result is the same: walls that conduct heat straight through in summer, bleed it out in winter, and force your HVAC to run longer cycles than necessary. We’re Topside Attic Insulation New Braunfels, and we don’t blow insulation into walls until we’ve addressed the air leakage that makes insulation perform poorly. That sequence, sealed first and insulated second, is the core of how we work.
Our crews are background-checked, uniformed, and arrive with a written scope, written warranty, and documented photo record on every job. Calls are answered by a live person 24/7. No voicemail loops, no callback windows measured in business days.
What Our Wall Insulation Service Includes
Injection Foam Wall Insulation
Injection foam is a water-based resin that expands to fill existing wall cavities through small holes drilled from the exterior or interior, then hardens into a solid, air-blocking matrix. You need this when your home has empty stud cavities or degraded batt insulation but you don’t want to tear down drywall or siding. In New Braunfels, we regularly use injection foam in two-story homes in Vintage Oaks and the Elm Creek area, where stucco or hardcoat exteriors make exterior access straightforward and interior disruption minimal. Our crews use thermal imaging before and after to verify cavity fill, and we provide a Documented Photo Record showing the injection pattern and any gaps we addressed.
Drill & Fill Wall Insulation
Drill and fill is the method of removing a small section of siding or drilling through drywall, blowing loose-fill fiberglass or cellulose into the cavity, then sealing the access point. You need this when your walls have some insulation but it’s insufficient, settled, or was installed before modern density standards. We see this constantly in Wall Insulation - Seguin and New Braunfels homes from the 1990s, particularly in Oak Run and the original sections of Morningside, where early cellulose settled to the bottom third of eight-foot studs and left the upper walls effectively uninsulated. Our crews measure density in pounds per cubic foot as we fill, not by eye, and we note the final density on your written scope.
Exterior Wall Insulation
Exterior wall insulation addresses the entire envelope system from the outside, often combining rigid foam board, drainage plane improvements, and new cladding where the existing siding is being replaced or where significant thermal bridging exists. You need this when you’re already residing your home, when exterior sheathing is being removed for structural repair, or when interior disruption must be avoided entirely. In New Braunfels, we’ve completed exterior wall jobs during whole-home renovations in the Hoffmann Lane corridor and in flood-recovery rebuilds near the Guadalupe River, where interior walls were finished and sacrosanct. We source rigid foam from Owens Corning and Johns Manville, and we detail every seam and penetration with compatible tape and flashing before cladding goes back on.
Interior Wall Soundproofing
Interior wall soundproofing uses dense-packed cellulose, mineral wool batts, or mass-loaded vinyl within partition walls to reduce airborne sound transmission between rooms. You need this for home offices, media rooms, nursery-adjacent bedrooms, or any shared wall where privacy matters. We get frequent requests in New Braunfels from homeowners in newer developments like West Village and The Crossings, where open floor plans and thin interior walls carry every conversation and television volume spike. Our crews use GreenFiber dense-pack cellulose or Rockwool Safe’n’Sound batts depending on the STC rating you’re targeting, and we test with a simple tone generator and decibel meter before closing the wall so you know the improvement is real, not promised.
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 Wall Insulation
We’ve installed Owens Corning fiberglass systems in hundreds of New Braunfels-area homes, from their EcoTouch batts in new construction to their PROPINK loose-fill in retrofits. We know the density requirements for their L77 loose-fill in walls, and we stock their wall-spray adhesive system for applications where netting and adhesive are specified over dry blow.
Johns Manville is our go-to for mineral wool applications, particularly in soundproofing and fire-rated assemblies where their SpiderPlus blow-in system or TempControl batts are specified. We’ve also worked extensively with Demilec open-cell spray foam for hybrid wall systems where a flash coat of foam is followed by dense-pack cellulose, a combination that performs well in New Braunfels’s mixed-humid climate without the cost of full-cavity foam.
Whether you have Owens Corning, Johns Manville, Demilec, or any other make in your walls already, we can assess what’s there, match or improve the system, and document exactly what we changed.
Before
AfterSigns You Need Wall Insulation Right Now
- Your walls are hot to the touch in summer or cold in winter. In New Braunfels, exterior walls should not feel like the outside air. If the interior surface of your west-facing wall reads within 5 degrees of ambient temperature on a July afternoon, your insulation is missing, compressed, or bypassed by air leakage. That thermal transfer is money leaving through the studs.
- Your HVAC runs continuously during peak hours but never reaches setpoint. This is the signature of a building envelope that can’t hold conditioned air. We see it most in homes with uninsulated or poorly insulated walls where the attic has already been addressed, the low-hanging fruit is gone, and the real problem is vertical heat flow through the wall assembly.
- You can hear your neighbor’s conversation through shared walls. Sound transmission requires air pathways. If you hear voices, televisions, or plumbing noise clearly through interior walls, those same pathways are moving conditioned air out and unconditioned air in. The fix is the same: dense-fill insulation properly installed.
- Your energy bills spike every summer despite a recent HVAC replacement. A new, correctly sized system should reduce runtime. If bills climbed after the equipment change, the problem isn’t the machine; it’s the load the machine is fighting. Walls are often the last envelope component checked and the first place we find missing insulation in 1990s New Braunfels construction.
- You’ve found mouse droppings, nesting material, or moisture stains inside wall cavities during renovation. These are signs that your walls are open to unconditioned space, whether through missing bottom plates, unsealed penetrations, or insulation that has degraded to the point of creating voids. This isn’t just an efficiency problem; it’s a durability and indoor air quality concern that insulation replacement and air sealing together can resolve.
Our Wall Insulation Process - Step by Step
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Initial Assessment and Thermal Imaging - We arrive with a written appointment time and a named technician who texts when en route. Our first step is a thermal imaging scan of your exterior walls to identify temperature anomalies that indicate missing insulation, thermal bridging, or air leakage paths. In New Braunfels homes, we commonly find missing insulation around electrical boxes, behind tub/shower surrounds, and at the intersection of second-floor joists with exterior walls.
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Blower-Door Test and Air Leakage Mapping - Before any insulation goes in, we run a blower-door test, a pressurization reading that shows, in one number, how much air your building envelope is losing. We record CFM50, then use theatrical fog and infrared to locate the dominant leakage paths. In wall retrofits, top plates, bottom plates, and electrical penetrations are almost always the culprits. We seal these first. Always.
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Written Price and Scope Review - Under Haven Standard Clause 1, you receive a flat price, written scope, and written warranty before anyone lifts a tool. No exceptions. The scope specifies material type, density target, cavity coverage percentage, and the blower-door reduction we’re targeting. You review and approve before work begins.
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Air Sealing and Insulation Installation - Our crew seals all accessible top plates, electrical penetrations, and plumbing stacks with compatible sealants and rigid blocking. Then we install your specified insulation system, whether injection foam, dense-pack cellulose, or hybrid foam-and-fill, measuring density and fill as we go. Every cavity is photographed before and after.
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Final Blower-Door Test and Documentation - We run a second blower-door test to quantify the improvement, then compile your Documented Photo Record, before-and-after blower-door readings, and final invoice. The 365-Day Done Right Promise applies from this moment. If it’s not done right, we make it right.
How Much Does Wall Insulation Cost in New Braunfels?
A typical drill-and-fill or injection foam job for a 1,800-square-foot home in New Braunfels or Cibolo Wall Insulation runs $3,200-$5,800. Exterior wall insulation with rigid foam and residing work starts around $8,500 and scales with wall area, cladding choice, and whether we’re working around complex architectural details. Interior soundproofing for a single shared wall runs $1,400-$2,600 depending on wall height, cavity depth, and whether electrical outlets need acoustic putty and baffles.
Several factors move these numbers. Wall cavity depth is the big one: standard 2×4 walls hold less material and achieve lower R-value than 2×6 construction common in homes built after 2010. Access method matters too. Exterior access through removable siding is faster and cleaner than interior access through drywall repair. Existing insulation condition affects price; removing degraded, pest-contaminated, or moisture-damaged material adds labor but prevents the new insulation from performing poorly from day one.
To avoid overpaying, get competing estimates in writing and bring them to us for a Free Second Opinion. We’ll read them with you and flag scope gaps, material substitutions, or missing air-sealing steps that would cost you later. Our estimates include material, labor, air sealing, cleanup, and your Documented Photo Record. No line items appear after the written price is signed.
Call (830) 243-6352 for a written estimate at no charge. Estimates are free, and the price we write is the price you pay.
Wall Insulation Near New Braunfels - Our Service Area
We complete wall insulation projects throughout Comal County and into adjacent Bexar, Guadalupe, and Hays counties. Typical drive times from our New Braunfels base put us in Cibolo within 20 minutes, Seguin in 25, and Schertz, Selma, Universal City, and Live Oak within 30. Canyon Lake homes on the north shore add 35-40 minutes. We also serve Converse, Bulverde, Windcrest, Timberwood Park, and the Hill Country pockets between. Response for standard appointments is usually within 48 hours; if you have a time-sensitive need tied to a closing, renovation milestone, or occupancy date, tell us when you call and we’ll schedule accordingly.
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 - Wall Insulation in New Braunfels
Wall insulation is material installed within the stud cavities of exterior or interior walls to slow heat transfer and reduce air movement through the building envelope. It works by trapping still air within a matrix of fibers or foam, which resists conductive and convective heat flow. In New Braunfels’s climate, properly installed wall insulation can reduce cooling loads by 15-25% in homes that previously had empty or degraded cavities.
Most residential wall insulation retrofits in New Braunfels are completed in one to two working days. A single-story home with accessible siding and straightforward cavity geometry typically finishes in a day; two-story homes, interior-only access, or jobs requiring existing insulation removal may extend to a second day. We specify the timeline in your written scope before work begins, and we don’t leave until the final blower-door test and documentation are complete. Call (830) 243-6352 to discuss your specific timeline.
Whole-home wall insulation in New Braunfels typically ranges from $2,800 for targeted partial-cavity work in a smaller home to $7,500 for complete dense-pack or injection foam in a larger two-story residence. Interior soundproofing runs $1,400-$2,600 per wall. The final price depends on wall area, cavity depth, access method, and whether existing material removal is required. We provide a flat, written price before any work starts, and we offer a Free Second Opinion on any competing written estimate. Call (830) 243-6352 for your specific number.
Yes. We install, repair, and augment systems from Owens Corning, Johns Manville, Demilec, GreenFiber, and all other major manufacturers. We don’t carry proprietary product lock-ins, so we specify the material that fits your wall assembly, budget, and performance target, not the one that moves a particular manufacturer’s volume. Your written scope names the exact product and density we intend to use.
We don’t treat insulation as an emergency trade; it’s a planned building envelope improvement that requires assessment, written scope, and scheduled execution. However, we do answer calls 24/7 through a live person, not voicemail, and we can often accommodate urgent scheduling needs tied to real estate closings, contractor sequencing, or weather-related damage where wall cavity exposure is temporary. If your situation is time-sensitive, call (830) 243-6352 and we’ll tell you honestly whether we can meet your date.
All completed wall insulation work is covered by our 365-Day Done Right Promise. If the insulation settles below specified density, if air leakage returns at sealed locations, or if any aspect of the work fails to match the written scope, we return and make it right at no charge. The warranty terms are written and delivered before work begins, not after the fact. Haven Standard: Have it in writing.
Move furniture and wall hangings away from exterior walls to give crews 3-4 feet of working space. Remove fragile items from shelves that share vibration with walls being drilled or filled. For interior-access jobs, we’ll specify which wall sections need clearing when we deliver your written scope. For exterior-access jobs, trim vegetation back 18 inches from wall faces and secure pets away from work areas. Our crew brings floor protection, dust containment, and HEPA vacuums; your preparation is minimal.
Schedule Your Wall 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 receive a written price before any work starts, a Documented Photo Record when the crew leaves, and the 365-Day Done Right Promise on every completed job. No voicemail loops, no callback windows measured in business days, no surprises.
Written by Wes Okafor, Owner at Topside Attic Insulation New Braunfels, serving New Braunfels since 2016.