Insulation in Converse, TX
Crawl space encapsulation and vapor barrier installation in Converse typically runs $3,800-$7,500 for homes between 1,200 and 1,800 square feet, with most jobs completed in one to two days. We’re Envelope Insulation Co., and we treat air sealing as a hard prerequisite before any insulation goes in - not an upsell. If your Converse home has a musty crawl space, buckling floors, or energy bills that spike every July, call (830) 549-6646. We’ll start with a written price and a blower-door test so you can see exactly what you’re losing.
Why Converse Homes Are Different
Converse’s housing stock is overwhelmingly 1970s-1990s slab-on-grade tract homes built for the rotating military population at Joint Base San Antonio-Randolph. These homes routinely retain original blown fiberglass attic insulation that has settled well below R-13, while San Antonio metro summer heat pushes attic temperatures past 150°F. The constant turnover of military families means insulation upgrades get skipped between owners or renters, leaving Converse one of the most underinsulated suburban pockets in Bexar County.
The February 2021 freeze exposed how poorly insulated exterior wall cavities and attic hatches are in these homes, with widespread pipe damage in neighborhoods nearest the base. Homes west of Kitty Hawk Road, built in the late 1970s to early 1980s, almost universally have compacted, moisture-damaged insulation that reads below R-10 on a thermal camera - yet owners often assume it’s adequate because it passed a PCS sale inspection. We see this on nearly every initial walkthrough.
Our Main Converse Services
Converse homeowners call us most often about attic work and spray foam. Here is what those jobs involve locally.
Attic Insulation in Converse
Most Converse attics we inspect hold original blown fiberglass from the 1980s or 1990s, compacted to half its original depth and riddled with gaps around top plates and can lights. We remove or supplement this material only after air sealing the attic floor, then document the before-and-after blower-door result so you can verify the performance change. Attic Insulation in Converse covers our full process and pricing.
Spray Foam Insulation in Converse
Spray foam works exceptionally well in Converse’s older homes with irregular framing, shallow rafter bays, and the air leakage paths common in 1970s-1990s construction. We specify open-cell or closed-cell based on the assembly - roofline, walls, or rim joist - and always publish the blower-door delta. Spray Foam Insulation in Converse details applications and costs.
Blown-In Insulation in Converse
Blown-in cellulose or fiberglass is the most common retrofit for Converse’s 1,200-1,800 square foot homes, but we will not blow new material over an unsealed attic floor. We seal first, then insulate, then verify with a blower-door test. Owens Corning and Johns Manville products are what we typically specify for these jobs. Blown-In Insulation in Converse explains the full sequence.
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.
Before
AfterCrawl Space Encapsulation & Vapor Barrier in Converse
Converse’s high summer humidity and clay soils create chronic crawl space moisture problems, especially in the older homes west of Kitty Hawk Road where foundation vents were installed to 1970s code and have never been upgraded. A proper Crawl Space Encapsulation & Vapor Barrier job seals those vents, blocks ground moisture, and conditions the air - preventing the mold, rot, and buckling subfloors we find in at least half the crawl spaces we inspect here.
Crawl Space Vapor Barrier
Signs you need it
You notice musty odors rising through floor registers, soft spots in flooring, or condensation droplets on ductwork in June through September.
What it costs in Converse
A 6-mil to 20-mil vapor barrier installation for a typical 1,200-1,800 sq ft Converse home runs $1,200-$2,800 depending on pier spacing and debris removal needs.
How we do it
We remove organic debris, grade the soil, seam-seal a reinforced polyethylene sheet across the entire footprint, and tape it to foundation walls before addressing any wall insulation.
Crawl Space Encapsulation
Signs you need it
Your crawl space has active mold on joists, insulation falling from the subfloor, or relative humidity readings above 70% in summer months.
What it costs in Converse
Full encapsulation with closed-cell foam on walls, sealed vents, and a dehumidifier for a Converse home typically ranges $4,500-$8,500.
How we do it
We install a complete vapor barrier, seal and insulate foundation walls with closed-cell spray foam, mechanically dehumidify the space, and provide before-and-after moisture readings in your documented record.
What Crawl Space Encapsulation & Vapor Barrier Costs in Converse
| Item | Typical range in Converse |
|---|---|
| Vapor barrier only (6-20 mil) | $1,200 - $2,800 |
| Partial encapsulation (barrier + wall foam) | $3,800 - $5,500 |
| Full encapsulation with dehumidifier | $4,500 - $8,500 |
How long does crawl space encapsulation take in Converse?
Most Converse jobs finish in one to two days; homes with extensive mold remediation or structural repairs may extend to three. We provide a written timeline with your price before work starts.
Will encapsulation lower my energy bills?
Yes - sealed crawl spaces reduce the load on your HVAC by blocking humid outdoor air and duct leakage, with typical cooling-season savings of 15-25% in Converse’s climate. Call (830) 549-6646 for a free estimate with blower-door and moisture readings.
Radiant Barrier Installation in Converse
Converse attics regularly reach 150°F in July and August, and the original blown fiberglass in these 1970s-1990s homes does almost nothing to stop radiant heat transfer from the roof deck to the living space below. A Radiant Barrier Installation reflects that infrared energy back toward the roof, reducing attic temperatures by 20-35°F and cutting cooling load measurably - especially critical in homes where the ductwork runs through the attic, as most Converse tract homes do.
Attic Radiant Barrier
Signs you need it
Your upstairs rooms stay hot past 10 p.m., your AC runs continuously on summer afternoons, or your attic floor insulation is darkened from dust infiltration.
What it costs in Converse
Radiant barrier foil stapled to rafters or laid over attic floor insulation in a typical Converse home runs $1,100-$2,400.
How we do it
We air seal the attic floor first, then install perforated radiant barrier foil with proper ventilation gaps, and verify attic temperature reduction with infrared photography.
Radiant Barrier Roof Deck
Signs you need it
You’re replacing your roof and want the radiant barrier integrated at the deck level for maximum performance and clean appearance.
What it costs in Converse
Radiant barrier roof deck sheathing or spray-applied coating during re-roofing typically adds $1,800-$3,200 to the project.
How we do it
We coordinate with your roofing contractor to install reflective sheathing or spray a low-emissivity coating directly to the deck, then document the assembly with photos.
What Radiant Barrier Installation Costs in Converse
| Item | Typical range in Converse |
|---|---|
| Foil radiant barrier (attic application) | $1,100 - $2,400 |
| Radiant barrier roof deck (with re-roof) | $1,800 - $3,200 |
| Radiant barrier with attic air sealing package | $2,200 - $4,100 |
Does radiant barrier work with existing insulation?
Yes - it complements rather than replaces insulation, reflecting radiant heat while your fiberglass or cellulose handles conductive transfer. We install it after air sealing, never before.
How much cooler will my attic get?
Typical attic temperature drops are 20-35°F in Converse homes, with the greatest benefit on homes with dark shingles and poor ventilation. Call (830) 549-6646 for a thermal imaging assessment.
Insulation Removal & Replacement in Converse
The original blown fiberglass in Converse’s 1970s-1990s homes is often compacted, moisture-stained, and contaminated with rodent droppings or dust from decades of military-family turnover. Insulation Removal & Replacement is not optional in these cases - new insulation installed over degraded material traps odors, loses R-value, and can harbor pathogens. We remove the old material completely, sanitize the deck, air seal, then install new insulation with documented blower-door verification.
Contaminated Insulation Removal
Signs you need it
You smell ammonia or must when the HVAC runs, see droppings or nesting material in the attic, or your insulation is stained brown or black.
What it costs in Converse
Contaminated insulation removal with HEPA containment and deck sanitizing for a typical Converse attic runs $2,200-$4,500.
How we do it
We establish negative air pressure, remove material with HEPA-filtered vacuums, apply an enzymatic sanitizer to the deck, and provide a photo record of the clean substrate before any new insulation goes in.
Insulation Replacement
Signs you need it
Your attic insulation measures below R-13, has visible gaps or compression, or was installed before 2000 and never inspected.
What it costs in Converse
Full removal and replacement with new blown fiberglass or cellulose, including air sealing, typically ranges $3,500-$6,800 for a Converse home.
How we do it
We remove old material, seal all top plates and penetrations, then install new insulation to current IECC standards for Bexar County with a written scope and blower-door test.
What Insulation Removal & Replacement Costs in Converse
| Item | Typical range in Converse |
|---|---|
| Contaminated insulation removal only | $2,200 - $4,500 |
| Standard removal + replacement with air sealing | $3,500 - $6,800 |
| Removal + spray foam replacement (open-cell attic) | $5,500 - $9,200 |
Can I just add new insulation on top of old?
We don’t recommend it for contaminated or severely compacted material - the old layer continues to off-gas, harbor moisture, and reduce overall performance. Complete removal lets us seal the deck properly.
How do I know if my insulation is contaminated?
Dark staining, ammonia odors, or visible droppings are clear indicators; we also test for moisture content and particulate levels during our inspection. Call (830) 549-6646 for a documented photo record of what we find.
Attic Air Sealing in Converse
Converse’s 1970s-1990s tract homes were built with minimal attention to the building envelope - top plates, can lights, and duct boots were left unsealed as standard practice, and decades of thermal cycling have opened new gaps. Attic Air Sealing is the single most cost-effective upgrade for these homes, often reducing air leakage by 30-50% before any new insulation is added. We never install insulation over an unsealed attic floor; it’s the first step of every job we take in Converse.
Top Plate & Penetration Sealing
Signs you need it
You feel drafts from ceiling fixtures on windy days, or your blower-door test shows excessive leakage at the attic floor plane.
What it costs in Converse
Sealing top plates, wire and pipe penetrations, and partition walls in a typical Converse attic runs $1,400-$2,800.
How we do it
We access each bay, apply fire-rated caulk or foam to all penetrations, install rigid blocking where needed, and verify the reduction with a blower-door test.
Can Light & Duct Boot Sealing
Signs you need it
Your can lights flicker in cold weather, or you see dust streaks on ceiling registers indicating attic air is being pulled into your ducts.
What it costs in Converse
Sealing can lights with rated covers and mastic-sealing duct boots typically adds $800-$1,600 to an air sealing package.
How we do it
We install fire-rated enclosures over non-IC can lights, seal duct boots with mastic and mesh, and pressure-test the duct system to confirm no attic air is entering the supply.
What Attic Air Sealing Costs in Converse
| Item | Typical range in Converse |
|---|---|
| Top plate and penetration sealing | $1,400 - $2,800 |
| Can light and duct boot sealing | $800 - $1,600 |
| Complete attic air sealing package | $2,200 - $4,200 |
Can air sealing alone lower my bills?
Yes - in Converse’s climate, a 30% reduction in air leakage typically cuts cooling costs 10-20% and eliminates the cold drafts that make 1980s homes uncomfortable in winter. We document the before-and-after blower-door number so you can see the change.
How long does attic air sealing take?
Most Converse attics require one day for sealing and testing; larger homes or those with extensive recessed lighting may need a second day. Your written price includes the full timeline before anyone starts.
Wall Insulation in Converse
Converse’s dominant housing stock - 2×4 framed walls with R-11 batts from the 1970s-1990s - performs poorly in both summer heat and winter freezes, as the February 2021 event demonstrated with frozen pipes in exterior walls throughout base-adjacent neighborhoods. Wall Insulation retrofit is challenging in finished homes but achievable through injection or drill-and-fill methods that don’t require full interior demolition. We specify materials from Owens Corning, Johns Manville, or Demilec based on wall cavity conditions and moisture exposure.
Injection Foam Wall Insulation
Signs you need it
Your exterior walls feel hot to the touch in summer, your pipes froze in February 2021, or you can hear every conversation from the neighbor’s yard through the wall.
What it costs in Converse
Injection foam for a typical 1,200-1,800 sq ft Converse home with accessible stud bays runs $3,200-$6,500.
How we do it
We drill 5/8-inch holes through exterior siding or interior drywall at stud-bay intervals, inject slow-rise foam that fills around existing wiring and plumbing, then patch and match the finish.
Drill & Fill Wall Insulation
Signs you need it
Your walls have settled batts with gaps at the top and bottom, or you’re remodeling a room and want to upgrade insulation while drywall is removed.
What it costs in Converse
Drill-and-fill with dense-pack cellulose for a typical Converse home runs $2,800-$5,400 depending on siding type and interior access.
How we do it
We remove a strip of siding or drill through mortar joints, blow cellulose to 3.5 pounds per cubic foot density, and seal penetrations with color-matched plugs or mortar.
What Wall Insulation Costs in Converse
| Item | Typical range in Converse |
|---|---|
| Injection foam (full exterior walls) | $3,200 - $6,500 |
| Dense-pack cellulose drill-and-fill | $2,800 - $5,400 |
| Partial wall upgrade (remodel scope) | $1,800 - $3,600 |
Will injection foam damage my walls?
Slow-rise formulations exert minimal pressure - we specify them precisely to avoid bowing drywall or displacing studs, and we verify fill completeness with thermal imaging. Call (830) 549-6646 for a free assessment of your wall cavities.
Can you insulate walls without removing drywall?
Yes - injection and drill-and-fill methods access cavities through small exterior or interior holes that we patch and match, making this the standard approach for occupied Converse homes.
Attic Cleaning & Rodent Proofing in Converse
The military-family turnover in Converse means attics often go uninspected for years, and the original blown fiberglass from the 1980s provides ideal nesting material for roof rats and squirrels that enter through construction gaps in eaves and soffits. Attic Cleaning & Rodent Proofing addresses both the contamination and the entry points - we won’t install new insulation until the space is clean, sanitized, and sealed against re-infestation.
Attic Sanitizing & Decontamination
Signs you need it
You smell urine or decay when the HVAC runs, see fly larvae in attic dust, or your insulation is compressed into trails and nests.
What it costs in Converse
Complete removal of contaminated insulation, HEPA vacuuming, and enzymatic sanitizing for a typical Converse attic runs $2,500-$4,800.
How we do it
We remove all organic material under negative pressure, HEPA-vacuum every surface, apply a commercial sanitizer, and provide a photo record of the clean deck before any restoration work.
Rodent Proofing & Exclusion
Signs you need it
You hear scratching at night, find droppings in the attic, or see gnaw marks on fascia boards and vent screens.
What it costs in Converse
Comprehensive rodent proofing with metal flashing, hardware cloth, and sealant for a typical Converse home runs $1,200-$2,600.
How we do it
We inspect every potential entry point from foundation to ridge, install gnaw-proof materials at all active and potential breaches, and provide a written exclusion map with photos of each repair.
What Attic Cleaning & Rodent Proofing Costs in Converse
| Item | Typical range in Converse |
|---|---|
| Attic sanitizing and decontamination | $2,500 - $4,800 |
| Rodent proofing and exclusion | $1,200 - $2,600 |
| Complete cleaning + proofing + re-insulation | $5,500 - $9,800 |
How do rodents get into Converse attics?
Roof rats exploit construction gaps in eaves, loose soffit vents, and plumbing penetrations - all common in 1970s-1990s tract homes where sealant has dried and pulled away. We find an average of four to six entry points per home.
Will proofing keep them out permanently?
Our metal and hardware-cloth repairs are permanent, but new gaps can develop as homes settle; we warranty our exclusion work for one year and inspect annually on request. Call (830) 549-6646 for a free inspection with documented photo record.
Home Energy Audit in Converse
A home energy audit in Converse reveals what decades of military-family turnover and deferred maintenance have hidden - the blower-door test alone often shows leakage rates double what modern code allows, and thermal imaging exposes the settled insulation and missed air sealing that standard inspections never catch. Home Energy Audit is where we start every major job, providing a written scope with prioritized recommendations and exact pricing before any work begins.
Blower Door Test
Signs you need it
Your energy bills are 30% higher than neighbors with similar homes, or you’re considering insulation work and want a baseline to verify improvement.
What it costs in Converse
A standalone blower-door test with written report for a Converse home runs $350-$550; it’s credited toward any work we perform.
How we do it
We install a calibrated fan in an exterior door, depressurize the house to 50 Pascals, and measure CFM50 - the single number that tells us exactly how much conditioned air you’re losing.
Thermal Imaging Inspection
Signs you need it
You have persistent cold spots, suspect missing wall insulation, or want to verify the quality of a previous contractor’s work.
What it costs in Converse
Thermal imaging as part of a full audit or standalone inspection runs $250-$450, often bundled with the blower-door test.
How we do it
We scan every surface with a FLIR camera during controlled conditions, mark thermal anomalies on floor plans, and correlate findings with the blower-door result to distinguish air leakage from insulation gaps.
What Home Energy Audit Costs in Converse
| Item | Typical range in Converse |
|---|---|
| Blower-door test with written report | $350 - $550 |
| Thermal imaging inspection | $250 - $450 |
| Full home energy audit (both tests + scope) | $450 - $750 |
What does a home energy audit include?
Our full audit includes blower-door testing, thermal imaging, insulation assessment, duct leakage evaluation, and a written scope with prioritized recommendations and exact pricing - no work starts without your written approval.
How long does the audit take?
Plan on two to three hours for a typical Converse home; we schedule audits morning and afternoon, and your written report arrives within 48 hours. Call (830) 549-6646 to book - a live person answers 24/7.
Brands We Service in Converse
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 what’s right for your assembly, not what’s in our warehouse. Most Converse jobs draw from stock held at our San Antonio office, with next-day availability on standard items. our brands
Pricing for Insulation in Converse, TX
| Service | Typical range in Converse |
|---|---|
| Crawl space vapor barrier | $1,200 - $2,800 |
| Full crawl space encapsulation | $4,500 - $8,500 |
| Radiant barrier (attic foil) | $1,100 - $2,400 |
| Contaminated insulation removal | $2,200 - $4,500 |
| Insulation removal + replacement | $3,500 - $6,800 |
| Attic air sealing (complete) | $2,200 - $4,200 |
| Injection foam wall insulation | $3,200 - $6,500 |
| Attic sanitizing + rodent proofing | $3,700 - $7,400 |
| Home energy audit (full) | $450 - $750 |
Prices in Converse run higher when we encounter active mold, structural repairs, or accessibility issues in the tight attics of 1970s-1980s homes. Every job still begins with a written price - no exceptions - under Haven Standard Clause 1.
Neighborhoods We Serve in Converse
We work throughout Converse’s full residential footprint, from the original Randolph-adjacent tracts to newer subdivisions. Most calls are dispatched from our San Antonio office, with crews typically arriving within 45 minutes to an hour.
- Kitty Hawk area and streets west of Kitty Hawk Road
- Converse Heights
- Woodlake
- The Trails at Converse
- Live Oak Ridge
Service Area - Cities Near Converse
We serve the full northeastern San Antonio metro, including Universal City, TX directly south of Converse, Schertz, TX to the northeast, Cibolo, TX further east along I-10, and New Braunfels, TX to the north. Dispatch and scheduling are coordinated from our San Antonio office; crews carry localized stock for each market.
Serving Converse, TX - Our Local Coverage Area
We’re based in the Converse 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 Converse
Most attic and wall insulation retrofits in Converse don’t require permits, but crawl space encapsulation and spray foam in occupied spaces may trigger Bexar County building department review - we handle permit research and submission as part of your written scope when needed.
Our crews typically arrive within 45-60 minutes for scheduled assessments, and emergency calls for active leaks or HVAC failure from insulation loss are prioritized same-day. A live person answers at (830) 549-6646 around the clock.
Yes - we provide the written scope, material specifications, and photo documentation most Converse HOAs require for exterior work, and we coordinate inspection timing so your project isn’t delayed by approval cycles.
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 60-minute.
- 4You approve before work beginsNothing starts until you say go.
What Converse Customers Say
"They air-sealed the attic floor before insulating and showed me the blower-door number before and after. The upstairs is finally the same temperature as downstairs."
- Marisol D."The winter gas bill dropped by about a third. They had estimated a quarter, so they under-promised."
- Genevieve R."Crawl space encapsulation done properly. Photographs of the vapour barrier at every seam, and the damp smell in the hallway is gone."
- Ainsley P.