Insulation in Schertz, TX
Crawl space encapsulation and vapor barrier work in Schertz typically runs $2,800-$6,500 for most single-family homes, with jobs completed in 1-3 days. The dominant housing stock here - production-built tract homes from DR Horton, Lennar, and KB Home, now 10-20 years old - was built to minimum IECC Climate Zone 2A code with vented crawl spaces that draw humid Gulf air straight through the floor system. We’re Envelope Insulation Co., and we treat air sealing as a hard prerequisite before any insulation goes in. Call (830) 529-7780 for a written price before any work starts.
Why Schertz Homes Are Different
Schertz sits in one of Texas’s fastest-growing corridors, and its housing stock reflects that speed. From roughly 2003 to 2022, national builders carpeted the area with standardized stick-frame homes, nearly all with vented attics and minimum-code insulation packages calibrated to pass inspection, not to handle real-world summers. Attic temperatures here routinely hit 140-160°F, and Gulf humidity pushes moisture through every gap in the building envelope.
The result is a peculiar uniformity: subdivision after subdivision, we find the same deficiencies. Settled blown fiberglass that no longer meets its labeled R-value. Unsealed top plates where conditioned air bleeds into the attic. Leaky can lights and duct boots that act as chimneys in reverse. Near the JBSA-Randolph corridor, many homes serve rotating military tenants who absorb high CPS Energy bills and PCS out before landlords ever investigate, leaving whole streets of identical underperforming attics untouched for over a decade. Schertz’s terrain is flat, its soil is clay-heavy, and its crawl spaces stay damp year-round without mechanical drying.
Our Main Schertz Services
Schertz homeowners call us most often for attic work and spray foam - here is what those jobs involve locally.
Attic Insulation in Schertz
Most Schertz attics start with R-30 blown fiberglass that has settled to effective R-20 or below. We don’t add new material over old until we’ve sealed the attic floor - top plates, wire penetrations, can lights, and duct boots - and documented the blower-door improvement. Our crews serve Schertz locally, with dispatch from our San Antonio office. Attic Insulation in Schertz covers full removal, air sealing, and re-insulation with Owens Corning or Johns Manville products.
Spray Foam Insulation in Schertz
Spray foam makes sense in Schertz when we’re treating conditioned attics, sealing rim joists in crawl spaces, or insulating non-vented roof decks where radiant barriers can’t perform. We use open-cell and closed-cell formulations from Demilec and Icynene, selected by application, not by brand loyalty. Every job gets a written scope and written warranty before the rig arrives. Spray Foam Insulation in Schertz details open-cell attic floors and closed-cell crawl space walls.
Blown-In Insulation in Schertz
Blown-in fiberglass and cellulose remain the most common retrofit in Schertz because they match what builders originally installed and they’re cost-effective to add after proper air sealing. We source GreenFiber cellulose and Owens Corning fiberglass - no proprietary lock-in - and we never blow new material over settled old without first documenting what’s there. Blown-In Insulation in Schertz explains our prep-first protocol.
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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Crawl Space Encapsulation & Vapor Barrier in Schertz
Schertz’s clay-heavy soils and year-round humidity turn vented crawl spaces into moisture reservoirs. The standard production-home detail - fiberglass batts tucked between joists with a thin 6-mil ground cover, if anything - fails predictably: batts sag, mold colonizes joist bays, and indoor relative humidity climbs even when the AC runs constantly. Crawl Space Encapsulation & Vapor Barrier is the systematic fix, and it’s one of our most called-for services in Schertz subdivisions near Cibolo Creek where the water table sits high.
Crawl Space Encapsulation
Signs you need it
Fiberglass batts hanging below joists, musty odors rising through floor registers, or hardwood cupping above the crawl space are clear indicators the existing detail has failed.
What it costs in Schertz
Full crawl space encapsulation in Schertz typically ranges from $4,500 to $8,500 depending on footprint, pier count, and whether we need to install a dehumidifier.
How we do it
We remove degraded material, seal all perimeter vents, install a reinforced 12-20 mil vapor barrier sealed at seams and walls, and condition the space with a dedicated dehumidifier tied to a condensate pump.
Crawl Space Moisture Control
Signs you need it
Relative humidity readings above 65% in the crawl space, efflorescence on block walls, or condensation on ductwork during shoulder seasons point to uncontrolled moisture.
What it costs in Schertz
Standalone moisture control with vapor barrier and dehumidification in Schertz usually falls between $2,800 and $5,200.
How we do it
We install a sealed ground cover, apply closed-cell spray foam to rim joists as an air and vapor barrier, and size a dehumidifier to the crawl space volume with a digital hygrometer for monitoring.
What Crawl Space Encapsulation & Vapor Barrier Costs in Schertz
| Item | Typical range in Schertz |
|---|---|
| Crawl space vapor barrier (ground cover only) | $1,200 - $2,800 |
| Partial encapsulation with rim joist sealing | $3,200 - $5,500 |
| Full encapsulation with dehumidifier | $4,500 - $8,500 |
Does crawl space encapsulation help with summer humidity in Schertz?
Yes. Sealing the crawl space and adding mechanical dehumidification stops the stack effect that pulls damp Gulf air through the floor system, which is the primary driver of high indoor humidity in Schertz’s Climate Zone 2A summers. Call (830) 529-7780 and we’ll measure your crawl space humidity on the first visit.
How long does crawl space encapsulation take in Schertz?
Most Schertz crawl spaces are completed in 1-3 days depending on square footage, pier count, and whether we’re also treating rodent damage or replacing degraded subfloor insulation. We deliver a written schedule with the written price before work starts.
Radiant Barrier Installation in Schertz
Schertz attics reach 140-160°F in July and August, and production homes were built with dark shingles over vented attics with no reflective strategy. Radiant barrier installation blocks radiant heat transfer from the roof deck to the attic floor and ductwork, reducing cooling load before the insulation even factors in. Radiant Barrier Installation is particularly effective in Schertz’s post-2010 subdivisions where HVAC ducts run through the attic and absorb direct radiant gain.
Attic Radiant Barrier
Signs you need it
AC runs continuously after 2 p.m., supply ducts feel warm to the touch, or second-floor rooms lag 4-6 degrees behind the thermostat setting.
What it costs in Schertz
Radiant barrier installation in Schertz attics typically ranges from $1,800 to $3,500 depending on roof pitch, attic square footage, and whether we use foil or spray-applied coating.
How we do it
We staple perforated radiant barrier foil to the underside of roof rafters or apply a low-emissivity spray coating, maintaining ventilation pathways and documenting attic temperature reduction with infrared photography.
Radiant Barrier Roof Deck
Signs you need it
New roof installation planned, or existing radiant barrier foil has torn, oxidized, or detached from rafters due to Schertz’s thermal cycling.
What it costs in Schertz
Roof-deck radiant barrier application during reroofing or as a standalone retrofit in Schertz runs $2,200 to $4,200.
How we do it
We apply a spray-applied radiant barrier coating directly to the roof deck sheathing from the attic side, creating a bonded, low-emissivity surface that won’t tear or sag like foil.
What Radiant Barrier Installation Costs in Schertz
| Item | Typical range in Schertz |
|---|---|
| Attic radiant barrier foil (rafter application) | $1,800 - $3,200 |
| Spray-applied roof deck coating | $2,200 - $4,200 |
| Radiant barrier with attic air sealing package | $3,500 - $5,800 |
Does radiant barrier work with existing attic insulation?
Yes, radiant barrier complements rather than replaces insulation; it addresses radiant heat transfer while fiberglass or cellulose slows conductive heat flow, and we always air seal first so the combination performs as designed. Call (830) 529-7780 for a written price on the combined package.
How much cooler will my attic be with radiant barrier?
Properly installed radiant barrier in a Schertz attic typically reduces peak attic temperature by 20-35°F, with the greatest benefit on west-facing roof planes and dark shingle surfaces. We document before-and-after readings with infrared cameras on every job.
Insulation Removal & Replacement in Schertz
Schertz’s 10-20 year old production homes often contain insulation that was inadequate from day one and has since degraded from moisture, pest activity, or simple settling. We don’t cover old material with new; we remove it, document the cavity condition, seal every penetration, and install insulation that meets the actual thermal load. Insulation Removal & Replacement is standard practice in Schertz rentals near JBSA-Randolph where deferred maintenance has compounded over multiple tenant cycles.
Contaminated Insulation Removal
Signs you need it
Visible rodent droppings, urine staining, mold on insulation paper facing, or persistent musty odors that persist after HVAC filter changes.
What it costs in Schertz
Contaminated insulation removal and disposal in Schertz typically ranges from $2,500 to $4,800 depending on attic square footage and whether HEPA containment is required.
How we do it
We establish negative air pressure with HEPA filtration, remove bagged material through a contained chute, apply EPA-registered sanitizer to exposed surfaces, and provide photo documentation of the cleaned cavity before any new material goes in.
Insulation Replacement
Signs you need it
Original blown fiberglass has settled below joist tops, R-value no longer meets IECC current code, or energy bills have climbed 15-20% with no rate change.
What it costs in Schertz
Insulation replacement with air sealing and new blown fiberglass or cellulose in Schertz runs $3,200 to $6,500 for typical 1,800-2,400 square foot homes.
How we do it
We remove existing material, seal top plates and penetrations with documented blower-door testing, then install new insulation to the specified R-value with even coverage and proper damming at soffits and penetrations.
What Insulation Removal & Replacement Costs in Schertz
| Item | Typical range in Schertz |
|---|---|
| Insulation removal only (no replacement) | $1,800 - $3,500 |
| Contaminated removal with sanitizing | $2,500 - $4,800 |
| Full removal, air sealing, and replacement | $3,200 - $6,500 |
Is it cheaper to add insulation over old or remove and replace?
Adding over old costs less upfront but often wastes money because unsealed penetrations and settled base layers undermine the new material’s performance; removal with proper air sealing delivers measurable results we can document. Call (830) 529-7780 for a free second opinion on any written estimate.
How do I know if my insulation is contaminated?
We inspect with bright lighting and document with photos; if you see dark staining, compressed trails, or smell ammonia-like odors in the attic, assume contamination and schedule an assessment rather than disturb it yourself. Safety first - disturbed rodent waste can become airborne.
Attic Air Sealing in Schertz
Every Schertz production home we’ve assessed has the same pattern: R-30 blown fiberglass sitting atop a leaky attic floor where conditioned air escapes through unsealed top plates, wire holes, plumbing penetrations, and leaky duct boots. The insulation does almost nothing until the air barrier is fixed. Attic Air Sealing is our mandatory first step, and we publish before-and-after blower-door numbers so homeowners see exactly what they paid for.
Top Plate & Penetration Sealing
Signs you need it
Dust streaks on insulation around partition walls, cobwebs concentrated near ceiling fixtures, or rooms that won’t maintain temperature despite adequate insulation depth.
What it costs in Schertz
Top plate and penetration sealing as a standalone service in Schertz typically ranges from $1,800 to $3,200 depending on attic complexity and number of partition walls.
How we do it
We access each top plate through the attic, seal gaps with fire-rated caulk and foam, install rigid baffles at soffits, and verify with blower-door testing before any insulation is added or replaced.
Can Light & Duct Boot Sealing
Signs you need it
Can lights that are hot to the touch from the attic side, duct boots pulling away from ceiling drywall, or supply registers that blow attic-temperature air for the first 30 seconds of AC cycle.
What it costs in Schertz
Can light and duct boot sealing in Schertz runs $1,200 to $2,800 depending on fixture count and whether we replace non-IC-rated housings with airtight alternatives.
How we do it
We seal duct boots with mastic and mechanical fasteners, cover non-IC can lights with pre-formed airtight enclosures, and pressure-test the duct system where accessible to confirm leakage reduction.
What Attic Air Sealing Costs in Schertz
| Item | Typical range in Schertz |
|---|---|
| Top plate and penetration sealing | $1,800 - $3,200 |
| Can light and duct boot sealing | $1,200 - $2,800 |
| Full attic air sealing with blower-door verification | $2,800 - $4,500 |
Can attic air sealing be done without adding insulation?
Yes, and in Schertz’s hot-humid climate, sealing alone often delivers the single biggest comfort improvement per dollar because it stops conditioned air from escaping and humid attic air from being drawn down through leaks. Call (830) 529-7780 for a written price on sealing alone or as part of a full upgrade.
What is a blower-door test and why do you publish the numbers?
A blower-door test pressurizes the house to measure total air leakage in CFM50 - one number that shows how much conditioned air you’re losing; we publish before-and-after readings because Haven Standard requires documented evidence, not claims, and homeowners deserve to verify their investment. Our typical Schertz home starts at 3,500-5,000 CFM50 and finishes below 2,500 CFM50 after proper sealing.
Wall Insulation in Schertz
Schertz’s production homes were built with 2×4 walls and minimal cavity insulation, often fiberglass batts with gaps at electrical boxes and stud bays. The walls weren’t designed for Climate Zone 2A heat gain, and retrofitting them is one of the few ways to improve envelope performance without touching the roofline. Wall Insulation in Schertz focuses on dense-pack methods that fill irregular cavities without removing drywall.
Injection Foam Wall Insulation
Signs you need it
Exterior walls hot to the touch in afternoon sun, rooms with exterior walls that won’t cool below 78°F, or visible gaps in batt insulation around outlets and switches.
What it costs in Schertz
Injection foam wall insulation for a typical Schertz single-story home runs $4,500 to $8,500 depending on linear footage of exterior walls and cavity depth.
How we do it
We drill 2-inch holes at stud-bay intervals, inject slow-rise foam that fills around obstructions, patch with matching plugs, and texture to blend with existing wall finish.
Drill & Fill Wall Insulation
Signs you need it
Empty or poorly filled stud bays discovered during renovation, or exterior walls with no insulation at all in additions built before stricter codes.
What it costs in Schertz
Drill and fill with cellulose or fiberglass in Schertz typically ranges from $3,200 to $6,500 for standard 2×4 construction.
How we do it
We drill access holes, dense-pack cellulose or fiberglass to the specified density, seal penetrations, and verify fill completeness with thermal imaging from the interior.
What Wall Insulation Costs in Schertz
| Item | Typical range in Schertz |
|---|---|
| Drill and fill (cellulose or fiberglass) | $3,200 - $6,500 |
| Injection foam (exterior walls) | $4,500 - $8,500 |
| Interior wall soundproofing | $2,800 - $5,200 |
Does wall insulation help with sound between rooms?
Yes, dense-packed cellulose or mineral wool in interior walls significantly reduces airborne sound transmission, which matters in Schertz’s open-plan production homes where bedroom walls often share little more than drywall and air. Call (830) 529-7780 to discuss which rooms would benefit most.
Can you insulate walls without removing drywall?
Yes, our drill-and-fill methods access wall cavities through small exterior or interior holes that we patch and texture, so the work is complete without major disruption to finished spaces. We provide a written scope showing exact drill pattern and repair detail before starting.
Attic Cleaning & Rodent Proofing in Schertz
Schertz’s mature subdivisions, tree canopy, and proximity to greenbelts create ideal conditions for roof rats and squirrels to access attics through construction gaps that builders never sealed. Once inside, they compress insulation, contaminate it with waste, and create fire hazards by chewing wiring. Attic Cleaning & Rodent Proofing restores the space and prevents recurrence with exclusion work, not just trapping.
Attic Sanitizing & Decontamination
Signs you need it
Visible droppings, urine staining on insulation or joists, strong ammonia odors, or HVAC registers that distribute particulate when the system cycles.
What it costs in Schertz
Attic sanitizing and decontamination in Schertz typically ranges from $2,200 to $4,500 depending on contamination extent and whether insulation removal is included.
How we do it
We remove contaminated material under HEPA containment, apply enzyme-based sanitizer to all structural surfaces, fog with odor counteractant, and provide photo documentation of the cleaned attic before any restoration work.
Rodent Proofing & Exclusion
Signs you need it
Scratching noises in walls or ceiling at dawn and dusk, chew marks on fascia or soffit vents, or repeated trapping that never stops new activity.
What it costs in Schertz
Rodent proofing and exclusion for a typical Schertz home runs $1,800 to $3,500 depending on roofline complexity and number of entry points identified.
How we do it
We inspect the roofline, soffits, vents, and foundation with motion-activated cameras if needed, seal all entry points with rodent-resistant materials, and install vent guards and chimney caps where appropriate.
What Attic Cleaning & Rodent Proofing Costs in Schertz
| Item | Typical range in Schertz |
|---|---|
| Rodent proofing and exclusion only | $1,800 - $3,500 |
| Attic sanitizing and decontamination | $2,200 - $4,500 |
| Full cleanout, sanitizing, and re-insulation | $4,500 - $8,500 |
How do rodents get into Schertz attics?
Roof rats exploit construction gaps at roof-wall intersections, unsealed soffit vents, and plumbing penetrations that builders left open; Schertz’s mature oak canopy provides highway access to rooflines that newer, treeless subdivisions don’t offer. Call (830) 529-7780 for an inspection that finds every entry point.
Is rodent-contaminated insulation safe to leave?
No - disturbed rodent waste can aerosolize hantavirus and other pathogens, and compressed insulation loses R-value while creating odor and HVAC contamination; we remove it under controlled conditions and document the clean attic with photos. Don’t attempt DIY removal without proper PPE and containment.
Home Energy Audit in Schertz
Most Schertz homeowners know their bills are high and their upstairs won’t cool, but they don’t know whether the problem is leaky ducts, missing insulation, or air infiltration through the attic floor. A home energy audit isolates the biggest losses with measured data, not guesses, so every dollar spent on improvements goes to the right fix. Home Energy Audit is where we start every major job, and it’s available as a standalone service for homeowners who want a roadmap before committing to work.
Blower Door Test
Signs you need it
You’ve addressed obvious issues but bills remain high, or you’re planning major insulation work and want baseline data to verify improvement.
What it costs in Schertz
A standalone blower-door test with written report in Schertz typically ranges from $350 to $550; it’s included at no charge when bundled with air sealing or insulation work.
How we do it
We install a calibrated fan in an exterior door, depressurize the house to 50 Pascals, and measure total leakage in CFM50 while tracing major leak paths with smoke pencils and infrared cameras.
Thermal Imaging Inspection
Signs you need it
Uneven temperatures between rooms, suspected missing insulation in walls or ceiling, or moisture stains that may indicate hidden air leakage condensation.
What it costs in Schertz
Thermal imaging inspection as part of a full audit in Schertz runs $450 to $750 depending on house size and whether we include duct leakage testing.
How we do it
We scan interior and attic surfaces with a FLIR camera during normal heating or cooling operation, documenting insulation voids, air leakage patterns, and moisture anomalies with geo-tagged images in the written report.
What Home Energy Audit Costs in Schertz
| Item | Typical range in Schertz |
|---|---|
| Blower-door test with written report | $350 - $550 |
| Full energy audit (blower door, thermal imaging, duct test) | $450 - $750 |
| Audit bundled with air sealing or insulation work | Included at no charge |
What does a home energy audit include in Schertz?
Our standard audit includes blower-door testing, thermal imaging, combustion safety checks where applicable, and a written report with prioritized recommendations and estimated savings; we schedule 2-3 hours on site and deliver the report within 48 hours. Call (830) 529-7780 to book - live person answers 24/7.
Will an energy audit tell me if my builder’s insulation was adequate?
Yes - we measure actual R-values, identify settled or missing material, and compare findings to IECC code requirements for Schertz’s Climate Zone 2A, so you know exactly where the original construction fell short and what it would take to fix it. Every finding is photo-documented.
Brands We Service in Schertz
We source insulation and air-sealing materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in means we specify by application, not by brand obligation. Most Schertz jobs draw from stock held at our San Antonio warehouse, with next-day availability on standard items. our brands
Pricing for Insulation in Schertz, TX
| Service | Typical range in Schertz |
|---|---|
| Crawl space vapor barrier (ground cover only) | $1,200 - $2,800 |
| Partial crawl space encapsulation | $3,200 - $5,500 |
| Full crawl space encapsulation with dehumidifier | $4,500 - $8,500 |
| Attic radiant barrier foil | $1,800 - $3,200 |
| Spray-applied roof deck radiant barrier | $2,200 - $4,200 |
| Insulation removal only | $1,800 - $3,500 |
| Contaminated insulation removal with sanitizing | $2,500 - $4,800 |
| Full removal, air sealing, and replacement | $3,200 - $6,500 |
| Top plate and penetration sealing | $1,800 - $3,200 |
| Full attic air sealing with blower-door verification | $2,800 - $4,500 |
| Drill and fill wall insulation | $3,200 - $6,500 |
| Injection foam wall insulation | $4,500 - $8,500 |
What pushes price up in Schertz: pier-and-beam foundations with limited crawl space access, attics with HVAC equipment that must be worked around, and homes requiring HEPA containment for contaminated material removal. What never changes: every job gets a written price before any work starts, with no surprises - Haven Standard Clause 1.
Neighborhoods We Serve in Schertz
Our crews work throughout Schertz’s established and developing subdivisions, with same-day or next-day scheduling for most assessments. Response time from our San Antonio dispatch office is typically under 45 minutes to any Schertz address.
- Schertz Estates
- The Crossvine
- Willow Grove
- Turning Stone
- Live Oak Ridge
Service Area - Cities Near Schertz
We serve Schertz directly and coordinate regularly with homeowners in Universal City, TX, Converse, TX, San Antonio, TX, and Bulverde, TX who want the same documented approach to envelope performance. Dispatch and scheduling run from our San Antonio office; crews are local to each area we cover.
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.
FAQs About Insulation in Schertz
Most attic and wall insulation retrofits in Schertz don’t require permits, but crawl space encapsulation and any electrical or HVAC modifications do; we handle permit research as part of our written scope and flag HOA requirements in gated communities before work starts. Call (830) 529-7780 and we’ll confirm for your specific job.
We schedule assessments within 24-48 hours for standard requests and same-day for urgent situations like contaminated insulation or active water intrusion; a live person answers calls 24/7, no voicemail loops. Our San Antonio dispatch coordinates Schertz crews for arrival windows we actually meet.
Schertz’s production homes were built to minimum IECC code for Climate Zone 2A with almost no air sealing, and attic temperatures of 140-160°F overwhelm undersized insulation while unsealed penetrations let conditioned air escape continuously; the combination produces bills 25-40% higher than a properly sealed and insulated envelope would require. An energy audit isolates your specific losses with measured data.
Ready to fix your home’s envelope? Call (830) 529-7780 for a free estimate with a written price before any work starts. Under Haven Standard, every job gets a documented photo record and, where applicable, before-and-after blower-door numbers you can verify yourself. We’re Envelope Insulation Co., independently owned and operated since 2016.
What happens when you call
- 1A real person answersNo phone trees - talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within the hour.
- 4You approve before work beginsNothing starts until you say go.
What Schertz Customers Say
"The winter gas bill dropped by about a third. They had estimated a quarter, so they under-promised."
- Genevieve R."They photographed rodent damage in the old insulation that we had no idea about, and priced the exclusion work separately so we could decide."
- Harriet N."Crawl space encapsulation done properly. Photographs of the vapour barrier at every seam, and the damp smell in the hallway is gone."
- Ainsley P.