Trusted Wall Insulation for Schertz Homeowners
Our Wall Insulation cost guide shows Schertz whole-home retrofits typically run $2,800-$7,500 and are usually completed in one to two days. Most homes we see in Schertz were built between 1985 and 2015 with fiberglass batts that have settled, compressed, or were never properly sealed at the top plates. Topside Attic Insulation Schertz has been independently owned and operated under The Haven Standard since 2016, and we’ve sealed and insulated more than 9,000 homes across the region. Every job begins with a written price before any work starts, and we publish before-and-after blower-door numbers so you can verify the performance change. Call (830) 402-5240 to speak with a live person, 24/7. Same-day estimates are available in Schertz, Cibolo, and Universal City.
What Our Wall Insulation Service Includes
Injection Foam Wall Insulation
Injection foam is a water-based resin that expands inside existing wall cavities through holes drilled from the exterior, filling gaps that fiberglass batts never reached. In Schertz, we use this method most often on homes built between 1990 and 2010 where the original fiberglass has settled or where contractors left voids around electrical boxes and plumbing stacks. Our crews seal the top plates and penetrations first, then inject the foam so it doesn’t simply leak into the attic through unsealed gaps. You’ll receive a Documented Photo Record showing the filled cavities and the blower-door reading before and after.
Drill & Fill Wall Insulation
Drill and fill is the retrofit method for adding dense-packed cellulose or fiberglass to walls that were never insulated or where the original material has failed. We see this need frequently in Schertz neighborhoods like The Crossvine and Pecan Grove, where builders in the 2000s used minimum-code batts that compressed within five to seven years. Our crew removes a row of siding or drills through drywall from the interior, fills the cavity with GreenFiber cellulose or Owens Corning fiberglass to a calculated density, then seals every penetration. The Haven Standard requires that we show you the density calculation and the fill verification photos before we close the holes.
Exterior Wall Insulation
Exterior wall insulation addresses the entire thermal boundary of your home, including above-grade concrete block walls common in Schertz’s newer construction near the Cibolo Creek corridor. For block walls, we use Icynene open-cell spray foam applied directly to the interior surface, which both insulates and creates an air barrier where none existed. For framed walls with failing insulation, we remove the siding, install a weather-resistive barrier, and add continuous rigid foam or dense-packed cavity fill depending on the assembly. Every exterior wall job includes a written scope specifying the R-value target, the air-sealing details at rim joists and top plates, and the before-and-after blower-door target.
Interior Wall Soundproofing
Interior wall soundproofing uses mineral wool batts, mass-loaded vinyl, or damped gypsum assemblies to reduce airborne noise between rooms. In Schertz, we install this most often for home offices near the Randolph Metrocom corridor and for media rooms in the newer builds off FM 3009. Rockwool Safe’n’Sound or Owens Corning Thermafiber are our standard materials, installed within standard 2×4 or 2×6 stud bays with attention to electrical outlet boxes and duct penetrations that short-circuit the assembly. The result is measured in STC (Sound Transmission Class) improvement, and we document the assembly details in your written scope.
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 source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. For Owens Corning wall systems, we specify their ProPink L77 loose-fill fiberglass for drill-and-fill retrofits because its settled density holds at R-13 to R-15 in a 2×4 cavity without the voids common with standard batts. We’ve installed Demilec’s Heatlok HFO High Lift in dozens of Schertz homes with block construction, where the closed-cell formula provides both structural rigidity and an air barrier at R-7 per inch. GreenFiber’s all-borate cellulose is our default for dense-pack applications in older framed walls, particularly in the Selma and Converse areas where we find empty stud bays from original construction shortcuts.
Whether your home currently has Icynene, Demilec, GreenFiber, Owens Corning, or any other material, we can assess its condition, match or improve the assembly, and document the change. We carry no proprietary product lock-in, so our recommendation is based on your wall type, your budget, and the blower-door target we set together. Bring us a competing quote and we’ll provide a Free Second Opinion, line by line.
Signs You Need Wall Insulation Right Now
- Your walls feel cold to the touch in winter. In Schertz, January nights drop into the 30s regularly, and uninsulated or poorly insulated exterior walls conduct that cold straight into your living space. If you can feel the temperature difference by touching an interior wall, your HVAC system is working overtime to compensate, and you’re paying for that inefficiency every month.
- Your energy bills spike every summer when the AC runs constantly. Schertz summers average 95°F with humidity pushing 80%, and walls without proper insulation or air sealing let that heat and moisture migrate inward. We see this most in homes near Live Oak and Universal City where the original builder-grade batts have compressed to half their labeled R-value.
- You can hear every conversation through shared walls. Interior walls without insulation transmit sound through empty cavities and unsealed electrical boxes. If you can follow a phone call from the next room, your walls are likely hollow or the insulation has settled away from the drywall.
- You’ve found mouse droppings or insect activity inside wall cavities. Gaps in insulation create pathways and nesting material for pests common to the Schertz area, including roof rats and paper wasps. Insulation removal and replacement, combined with proper air sealing, closes these routes and removes the habitat.
- Your home was built before 2015 and has never had a blower-door test. Texas energy code didn’t require blower-door testing until the 2015 IECC cycle, so most Schertz homes from the 1980s through early 2010s were never verified for air tightness. A blower-door test, which we perform on every applicable job, reveals in one number how much conditioned air your walls and attic are leaking.
Our Wall Insulation Process - Step by Step
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On-site assessment and blower-door test. We arrive at your Schertz home with a written appointment time and a text when the technician is en route. The assessment includes a visual inspection of accessible wall cavities, infrared imaging to identify thermal bypasses, and a blower-door test that pressurizes your home to measure air leakage in CFM50. You receive the raw number, not a interpretation, so you know exactly where you start.
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Written scope and fixed price. Under Haven Standard Clause 1, we deliver a written scope specifying the wall assembly, the R-value target, the air-sealing details, and the fixed price before any work starts. No work begins without your signature on this document. The scope also includes our 365-Day Done Right Promise and the blower-door target we’ll hit after completion.
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Air sealing before insulation. We seal top plates, electrical penetrations, can lights, and plumbing stacks before adding any insulation material. In Schertz’s older homes near downtown and the original Randolph Village area, we often find unsealed balloon framing and open chases that have been leaking conditioned air for decades. Sealing these first is non-negotiable; we will not blow insulation over an unsealed attic floor or inject foam into walls with unsealed penetrations.
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Insulation installation with density verification. Our crew installs the specified material, whether injection foam, dense-pack cellulose, spray foam, or batt replacement, with real-time verification of fill density and completeness. For drill-and-fill jobs, we use cavity-fill calculators and visual borescope inspection. For spray foam, we measure pass thickness and core sample when required. The Documented Photo Record captures every stage.
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Final blower-door test and documentation delivery. After cleanup, we run a second blower-door test and deliver the before-and-after comparison, the photo record, the completed warranty, and any maintenance notes specific to your assembly. In Schertz’s climate, we typically see 25-40% reduction in CFM50 on wall-insulation jobs where air sealing was part of the scope. You leave with everything in writing.
How Much Does Wall Insulation Cost in Schertz?
Most wall insulation jobs in Schertz fall between these ranges:
| Service | Typical Range | What Drives the Price |
|---|---|---|
| Injection foam, whole home (1,800-2,400 sq ft) | $4,500-$7,500 | Wall height, cavity condition, exterior access |
| Drill & fill with cellulose, whole home | $2,800-$5,200 | Number of cavities, siding type, density target |
| Exterior wall spray foam, block walls | $3,200-$6,800 | Wall area, foam type (open vs. closed cell), finish requirements |
| Interior soundproofing, single room | $1,800-$3,500 | Wall area, STC target, electrical rework needs |
Three factors move the price most in Schertz: wall construction type (framed vs. block), the condition of existing insulation if any, and the extent of air sealing required before new material goes in. Homes in the newer developments off Schertz Parkway often have straightforward 2×4 framed walls with vinyl siding, which keeps drill-and-fill labor efficient. Older homes near the original railroad corridor or in Selma may have mixed construction, plaster interiors, or previous DIY attempts that complicate access.
To avoid overpaying, get any competing quote in writing and bring it to us for a Free Second Opinion. We read it with you line by line, identify what’s included and what’s assumed, and show you where the scope differs from ours. Our price includes the air sealing, the material, the labor, the blower-door verification, the photo record, and the warranty. Nothing is held back as an “if needed” add-on. Call (830) 402-5240 for a written estimate with no obligation to proceed.
Wall Insulation Near Schertz - Our Service Area
We complete wall insulation projects across Schertz and the surrounding metro area with same-day or next-day estimate availability. Our crews work regularly in Cibolo, where newer construction often needs exterior block wall treatment, and Universal City, where the 1970s and 1980s housing stock benefits most from drill-and-fill retrofits. We also serve Selma, Converse, Live Oak, Windcrest, Kirby, New Braunfels, Terrell Hills, Alamo Heights, and Castle Hills. Typical response time from call to on-site assessment is 24-48 hours in Schertz proper, with 48-72 hours for outlying areas during peak summer demand. Every visit includes the Documented Photo Record and a written price before any work starts.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz 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 Schertz
Wall insulation is material installed within the cavities of exterior or interior walls to slow heat transfer and reduce air leakage. In Schertz’s climate, it keeps conditioned air inside during 95°F summers and prevents cold-wall conduction during winter nights in the 30s. The material, whether fiberglass, cellulose, foam, or mineral wool, works by trapping air in small pockets; the air-sealing layer we install first prevents that trapped air from escaping through gaps and cracks.
Most wall insulation jobs in Schertz are completed in one to two days. A standard drill-and-fill retrofit on a 2,000-square-foot home takes one day; injection foam or exterior spray foam on block walls may extend to two days for curing and finish work. We schedule the start date when you approve the written scope, and our crew arrives with all materials so there’s no delay for delivery.
Wall insulation in Schertz typically runs $2,800-$7,500 depending on the method, home size, and wall construction type. A drill-and-fill cellulose job on a standard framed home averages $3,500-$4,800; injection foam on the same home runs $5,000-$6,500; exterior spray foam on block walls ranges $4,000-$6,800. Your written estimate from Topside Attic Insulation Schertz specifies the exact scope and fixed price before any work starts. Call (830) 402-5240 for a free estimate.
Yes. We assess, repair, and supplement existing Icynene open-cell and Demilec closed-cell installations, and we install new assemblies with these materials where appropriate. For Schertz homes with Icynene that has degraded or been damaged by roof leaks, we remove the affected sections, address the moisture source, and respray to match the original density. For Demilec Heatlok applications on block walls, we verify adhesion and thickness with core samples when the job requires it.
We answer calls 24/7 and can schedule urgent assessments within 24 hours for situations like post-storm water intrusion into wall cavities or sudden pest infestation requiring insulation removal. True emergencies involving structural damage or active water leaks are addressed first with stabilization, then with the full insulation scope once the envelope is secure. Call (830) 402-5240 any time; a live person will answer and dispatch the appropriate response.
Every wall insulation job carries our 365-Day Done Right Promise: if the performance doesn’t match the written scope, we return and make it right at no charge. The specific material warranty, 25 years to lifetime depending on the product, is documented in your written scope before work begins. Haven Standard requires that both the workmanship promise and the material warranty be in writing and in your hands before anyone lifts a tool.
Move furniture three feet from exterior walls and remove wall hangings, curtains, and outlet covers in the work areas. Our crew covers floors and protects furnishings; you don’t need to vacate the home for most methods, though spray foam requires 24-hour re-entry per manufacturer guidelines. We’ll confirm the specific preparation list for your scope when we deliver the written price. Call (830) 402-5240 to schedule your assessment and receive the full preparation checklist.
Schedule Your Wall Insulation Service in Schertz Today
Call (830) 402-5240 to speak with a live person, 24/7, and schedule your free Wall Insulation - Universal City or Schertz assessment. You’ll receive a written price before any work starts, a Documented Photo Record when the crew finishes, and before-and-after blower-door numbers on every applicable job. The 365-Day Done Right Promise applies to all completed work. No obligation, no voicemail loops, no callback windows measured in business days.
Written by Wes Okafor, Owner at Topside Attic Insulation Schertz, serving Schertz, Cibolo, Universal City, and surrounding communities since 2016.