Insulation in Kirby, TX
Crawl space encapsulation and vapor barrier work in Kirby typically runs $2,800-$5,500 for a full encapsulation on a pier-and-beam home, with most jobs completed in one to two days. Because Kirby is a fully built-out enclave city surrounded by San Antonio, every insulation job we do here is a retrofit on a 50-to-70-year-old post-war home - most built before modern energy codes existed, with exposed crawl spaces and degraded original insulation. If you’re seeing moisture, musty odors, or cold floors in your Kirby home, call (830) 549-6646 for a free written estimate with upfront pricing.
Why Kirby Homes Are Different
Kirby’s housing stock is almost exclusively small, single-story post-WWII tract homes built between the 1950s and 1970s for working-class families near San Antonio’s eastern industrial and military corridors. Many sit on pier-and-beam foundations, leaving crawl spaces fully exposed to south-central Texas humidity and seasonal temperature swings. Original attic insulation, where it survives at all, is typically compressed fiberglass batt at R-values far below current Texas standards.
The local climate amplifies every weakness. Summer attic temperatures in Kirby routinely exceed 150°F, and cooling loads dominate energy bills from May through October. The February 2021 Winter Storm Uri freeze exposed how poorly insulated pipes and attics in these older homes handled sustained cold, driving renewed interest in envelope upgrades. Because Kirby is landlocked with no room to expand, nearly 100% of our market here is existing-home retrofit - we never pull new-construction permits in this city, and the job is almost always tearing out compressed, mouse-tunneled 1960s fiberglass before blowing in new material.
Our Main Kirby Services
Most Kirby homeowners who call us start with one of these three services, each with its own dedicated page for deeper detail.
Attic Insulation in Kirby
Attic insulation in Kirby means working around original 1960s truss designs and often removing degraded fiberglass before adding new material. We measure what’s there, photograph the condition, and specify blown-in cellulose or fiberglass to bring the attic up to current Texas code. Every attic job includes air sealing of top plates and penetrations before insulation goes in, with before-and-after blower-door numbers so you can verify the result. Read more about Attic Insulation in Kirby.
Spray Foam Insulation in Kirby
Spray foam insulation works well in Kirby’s older homes with irregular framing, knee walls, and bonus rooms that batt insulation never sealed properly. We use open-cell foam for attic applications and closed-cell for crawl spaces and rim joists, always after air sealing is complete. Because these homes weren’t designed for foam, we assess moisture management and ventilation before specifying product. Read more about Spray Foam Insulation in Kirby.
Blown-In Insulation in Kirby
Blown-in insulation is the most common retrofit we perform in Kirby, topping off or replacing original attic fill in homes where the existing material has settled to half its labeled R-value or less. We use Owens Corning, Johns Manville, or GreenFiber products, installed to uniform depth with baffles at eaves to maintain ventilation. Every job starts with a written price and ends with a documented photo record. Read more about Blown-In Insulation in Kirby.
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 Kirby
Crawl space encapsulation in Kirby addresses the specific conditions of post-war pier-and-beam homes with exposed dirt or thin-membrane crawl spaces that trap humidity year-round. South-central Texas moisture wicks up through soil and evaporates into floor joists, creating the musty odors, cupped hardwood, and mold-prone conditions we see regularly in 1960s and 1970s Kirby neighborhoods. Crawl Space Encapsulation & Vapor Barrier is our most-called service in this city because the building stock makes it unavoidable - these homes were built with vented crawl spaces that modern building science has shown don’t work in this climate.
Crawl Space Vapor Barrier
Signs you need it
Your Kirby home has persistent musty smells, cupping hardwood floors, or insulation hanging wet from floor joists.
What it costs in Kirby
A 6-mil to 20-mil vapor barrier installation over dirt crawl space floors typically runs $1,200-$2,800 in Kirby, depending on square footage and pier count.
How we do it
We remove debris, grade the soil, seam-seal a reinforced polyethylene membrane at all overlaps, and mechanically fasten it to foundation walls with a termination strip.
Crawl Space Encapsulation
Signs you need it
You’re seeing mold on floor joists, rusted ductwork, or energy bills that spike despite recent HVAC service.
What it costs in Kirby
Full encapsulation with closed-cell foam on walls, sealed vapor barrier, and mechanical dehumidification typically ranges $3,500-$7,500 for Kirby’s smaller post-war homes.
How we do it
We seal all vents, insulate and seal foundation walls, install a continuous vapor barrier sealed to walls, add a condensate-pumped dehumidifier, and provide before-and-after moisture readings.
What Crawl Space Encapsulation & Vapor Barrier Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Vapor barrier over dirt floor (6-20 mil) | $1,200 - $2,800 |
| Partial encapsulation (walls + barrier, no dehumidifier) | $2,800 - $4,500 |
| Full encapsulation with dehumidification | $3,500 - $7,500 |
How long does crawl space encapsulation take in Kirby?
Most Kirby crawl space jobs finish in one to two days, with full encapsulations occasionally stretching to three days if extensive mold remediation or joist repair is needed. We schedule a specific arrival window and text when the technician is en route.
Will encapsulation fix my musty smell?
Yes, when the source is ground moisture evaporating into the crawl space; we verify this with a hygrometer reading before quoting and provide the after-reading in your documented photo record. Call (830) 549-6646 for a free assessment.
Radiant Barrier Installation in Kirby
Radiant barrier installation in Kirby targets the specific problem of 150°F+ attic temperatures that radiate downward through undersized or degraded attic insulation in 1950s-1970s homes. These post-war tract houses were built with minimal ceiling insulation and no radiant reflection, so summer heat gain overwhelms the cooling system regardless of its age or efficiency. A radiant barrier - typically foil-faced sheeting or spray-applied coating - reflects infrared radiation rather than absorbing it, reducing the temperature differential your insulation must handle.
Attic Radiant Barrier
Signs you need it
Your Kirby home’s upstairs rooms stay hot past 10 p.m., your AC runs continuously on summer afternoons, or your ceiling insulation is compressed below its original thickness.
What it costs in Kirby
Attic radiant barrier installation in Kirby typically runs $1,500-$3,200 for a single-story home, depending on attic square footage and accessibility.
How we do it
We staple perforated foil radiant barrier to underside of roof rafters with proper air gap, or spray low-emissivity coating directly to roof deck, ensuring ventilation paths remain unobstructed.
Radiant Barrier & Ventilation
Signs you need it
Your attic has existing radiant barrier but still exceeds 140°F, or you notice mold staining near ridge vents indicating moisture trapped by improper airflow.
What it costs in Kirby
Radiant barrier with ventilation correction in Kirby ranges $2,200-$4,500, including additional soffit or ridge venting as needed.
How we do it
We calculate required net free ventilation area, install baffles at eaves, add or enlarge vents to achieve 1:150 or 1:300 ratio, then apply radiant barrier with verified air gap.
What Radiant Barrier Installation Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Attic radiant barrier (foil, staple-up) | $1,500 - $3,200 |
| Spray-applied radiant barrier coating | $2,000 - $4,000 |
| Radiant barrier with ventilation upgrade | $2,200 - $4,500 |
Does radiant barrier work with my old insulation?
Yes, radiant barrier complements existing insulation by reducing the radiant heat load that reaches it; we assess your current R-value and condition before recommending whether to add insulation, replace it, or install barrier alone. Call (830) 549-6646 for a written evaluation.
How much will my cooling bill drop?
Typical Kirby homes see 5-15% summer cooling reduction after radiant barrier installation, with greater savings in homes with poor existing insulation and high attic temperatures; we document pre- and post-installation attic surface temperatures in your photo record.
Insulation Removal & Replacement in Kirby
Insulation removal and replacement in Kirby is almost always a retrofit on 50-to-70-year-old homes where original fiberglass has been compressed, tunneled by rodents, or contaminated by roof leaks over decades. These post-war tract homes near San Antonio’s eastern corridors were built with minimal attic insulation that modern standards have left far behind, and the pier-and-beam construction common here means crawl space insulation often suffers similar degradation. We don’t add new material over damaged old insulation - it’s removed, the space is inspected and sealed, then new insulation is installed to documented depth with a photo record.
Contaminated Insulation Removal
Signs you need it
Your Kirby attic smells of urine or mildew, you see dark staining on insulation batts, or you’ve had a roof leak that saturated the attic floor.
What it costs in Kirby
Contaminated insulation removal in Kirby typically runs $1,800-$3,500 including bagging, HEPA vacuuming, and disposal, before replacement insulation is quoted separately.
How we do it
We set up negative air containment, remove contaminated material with HEPA-filtered equipment, apply antimicrobial treatment to affected surfaces, and provide photos of the cleaned substrate before any new insulation is specified.
Insulation Replacement
Signs you need it
Your Kirby home’s original insulation is compressed below half its original thickness, has visible gaps at eaves and around penetrations, or was installed before 1990 and never inspected.
What it costs in Kirby
Full insulation replacement with new blown-in cellulose or fiberglass in Kirby’s typical 1,000-1,400 square foot homes ranges $2,500-$5,000 for attics, with crawl spaces additional.
How we do it
We remove old material, air seal all top plates and penetrations, install baffles at eaves, then blow new insulation to uniform depth with depth markers and photographic documentation.
What Insulation Removal & Replacement Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Contaminated insulation removal (attic) | $1,800 - $3,500 |
| Standard insulation removal (non-contaminated) | $1,000 - $2,200 |
| Insulation replacement with new blown-in | $2,500 - $5,000 |
Do I have to leave during removal?
No, our containment and negative air setup keeps living spaces isolated; most Kirby homeowners stay home during removal and replacement, which typically completes in one day. Call (830) 549-6646 to schedule with a specific arrival window.
Can you match my old insulation type?
We can install fiberglass, cellulose, or mineral wool to match your preference, though we typically recommend cellulose or blown fiberglass for Kirby’s retrofit attics because they fill irregular cavities better than batts; the written scope specifies product and depth before work starts.
Attic Air Sealing in Kirby
Attic air sealing in Kirby is the critical first step we never skip - the Haven Standard requires sealing before insulating, and these 1950s-1970s homes are riddled with leakage paths that modern construction eliminated. Top plates, electrical penetrations, can lights, and duct boots in Kirby’s post-war tract homes were never sealed during original construction, so conditioned air escapes continuously into vented attics. We perform blower-door testing before and after sealing to quantify the improvement in a single number - your documented proof of performance.
Top Plate & Penetration Sealing
Signs you need it
Your Kirby home has dusty rooms, uneven temperatures between spaces, or you can feel air movement around outlets and switch plates on exterior walls.
What it costs in Kirby
Top plate and penetration sealing in Kirby typically runs $800-$1,800 for a single-story home, depending on framing complexity and accessibility.
How we do it
We locate all top plate gaps with blower-door-assisted smoke testing, seal with fire-rated caulk or foam, address wire and pipe penetrations, and retest to confirm reduction in CFM50.
Can Light & Duct Boot Sealing
Signs you need it
Your Kirby home has recessed can lights in ceilings below the attic, or your HVAC ducts show dust accumulation at ceiling registers indicating attic air infiltration.
What it costs in Kirby
Can light sealing with rated covers and duct boot sealing in Kirby ranges $600-$1,500, often combined with top plate work for comprehensive air sealing.
How we do it
We install fire-rated airtight covers over non-IC can lights, seal duct boots to ceiling drywall with mastic and mesh, and verify with blower-door differential testing.
What Attic Air Sealing Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Top plate and penetration sealing | $800 - $1,800 |
| Can light and duct boot sealing | $600 - $1,500 |
| Comprehensive attic air sealing (typical home) | $1,200 - $2,800 |
How much does air sealing really help?
Typical Kirby homes built in the 1960s test at 4,000-6,000 CFM50 before sealing and 2,500-3,500 after comprehensive attic air sealing - a 30-40% reduction in conditioned air loss that we document with before-and-after blower-door readings. Call (830) 549-6646 for a free assessment with written price.
Can you seal without adding insulation?
Yes, air sealing is a standalone service and often the most cost-effective single improvement for homes with adequate existing insulation depth but high air leakage; we quote it separately and perform it before any insulation work if both are scheduled.
Wall Insulation in Kirby
Wall insulation in Kirby addresses the hollow, uninsulated stud cavities common in 1950s-1970s post-war construction, where exterior walls were built with no insulation or minimal batts that have settled or degraded. These homes experience significant thermal bridging through framing members and air infiltration through unsealed cavities, making rooms uncomfortable despite adequate attic insulation. Because Kirby homes are fully built out with no new construction, every wall insulation job is a retrofit requiring minimal intrusion methods.
Drill & Fill Wall Insulation
Signs you need it
Your Kirby home’s exterior walls feel cold in winter or hot in summer, you have high energy bills despite attic upgrades, or you can hear outdoor noise clearly through closed windows.
What it costs in Kirby
Drill-and-fill wall insulation with dense-packed cellulose in Kirby’s typical 1,000-1,400 square foot homes ranges $2,800-$5,500, depending on wall area and exterior finish type.
How we do it
We drill 2-inch holes at stud bay intervals, dense-pack cellulose to 3.5 pounds per cubic foot to prevent settling, plug holes with matching material, and provide photos of fill consistency via borescope.
Injection Foam Wall Insulation
Signs you need it
Your Kirby home has aluminum or brick veneer exterior that makes drilling difficult, or you need both insulation and air sealing in a single application.
What it costs in Kirby
Injection foam wall insulation in Kirby typically runs $3,500-$6,500 for a full single-story home, with higher density foam at premium pricing.
How we do it
We access walls through minimal exterior or interior ports, inject slow-rise foam that expands to fill cavities without bowing studs, trim excess, and verify fill with thermal imaging.
What Wall Insulation Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Drill-and-fill cellulose (typical single-story) | $2,800 - $5,500 |
| Injection foam (typical single-story) | $3,500 - $6,500 |
| Interior wall soundproofing (per room) | $1,200 - $2,500 |
Will drill-and-fill damage my siding?
We match plug materials to your existing siding or stucco and place holes in inconspicuous locations; for vinyl siding we remove and replace panels, for brick we mortar-match plugs - the repair is included in your written scope. Call (830) 549-6646 for a free evaluation.
How much wall insulation helps in Kirby’s climate?
Adding wall insulation to uninsulated 1960s Kirby homes typically reduces heating and cooling loads 15-25% when combined with attic air sealing; we model this with your actual blower-door and insulation data during our energy audit.
Attic Cleaning & Rodent Proofing in Kirby
Attic cleaning and rodent proofing in Kirby is frequently needed in 50-to-70-year-old homes where original construction left multiple entry points and decades of roof and soffit degradation have added more. Mice and rats in Kirby’s established neighborhoods tunnel through compressed fiberglass, contaminate insulation with urine and feces, and create fire hazards by gnawing wiring. We clean, sanitize, exclude, and document - then specify replacement insulation only after the space is secured against re-entry.
Attic Sanitizing & Decontamination
Signs you need it
Your Kirby attic smells of ammonia, shows dark rodent droppings, or you’ve found dead animals or nesting material in insulation.
What it costs in Kirby
Attic sanitizing and decontamination in Kirby typically runs $1,500-$3,000, including HEPA vacuuming, antimicrobial application, and disposal of contaminated material.
How we do it
We remove all contaminated insulation and debris, HEPA-vacuum surfaces, apply EPA-registered sanitizer to kill pathogens, and provide photos of the cleaned attic deck before exclusion work begins.
Rodent Proofing & Exclusion
Signs you need it
You’re hearing scratching in walls or ceiling, finding droppings in the attic, or have had repeated pest control treatments that don’t stop recurrence.
What it costs in Kirby
Rodent proofing and exclusion for a typical Kirby single-story home ranges $1,200-$2,800, with one-year re-entry guarantee included.
How we do it
We inspect roofline, soffits, vents, and foundation for all entry points larger than 1/4 inch, seal with rodent-proof materials, install vent guards, and provide written exclusion map with photo documentation.
What Attic Cleaning & Rodent Proofing Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Attic sanitizing and decontamination | $1,500 - $3,000 |
| Rodent proofing and exclusion | $1,200 - $2,800 |
| Full attic restoration (cleanout + exclusion + new insulation) | $4,500 - $8,500 |
Do you remove the rodents too?
We partner with licensed wildlife operators for active infestations, then perform the structural exclusion and cleanup; our written scope specifies exactly who does what and in what sequence. Call (830) 549-6646 for a coordinated plan with upfront pricing.
How do I know they won’t come back?
Our exclusion work carries a one-year re-entry guarantee with written documentation of every sealed entry point; we photograph before and after conditions and provide the exclusion map for your records.
Home Energy Audit in Kirby
A home energy audit in Kirby provides the documented baseline that every other insulation decision should build from - especially in 1950s-1970s homes where multiple systems interact in ways that single-measure upgrades can miss. Our audit combines blower-door testing, thermal imaging, and combustion safety checks to show exactly where conditioned air escapes and how much. For Kirby homeowners who research thoroughly before calling contractors, the audit delivers the evidence-based scope that eliminates guesswork from insulation decisions.
Blower Door Test
Signs you need it
Your Kirby home has high energy bills, drafts you can’t locate, or you’re considering insulation upgrades and want to prioritize spending by actual leakage data.
What it costs in Kirby
A standalone blower-door test in Kirby typically runs $350-$600, or is included at no additional charge when bundled with our full energy audit.
How we do it
We install a calibrated fan in an exterior door, depressurize the home to 50 Pascals, measure CFM50 leakage rate, and use smoke pencils and infrared cameras to locate dominant leakage paths.
Thermal Imaging Inspection
Signs you need it
Your Kirby home has rooms that never reach set temperature, or you’ve added insulation but comfort hasn’t improved as expected.
What it costs in Kirby
Thermal imaging inspection in Kirby ranges $250-$500 as a standalone service, or is integrated into our full audit package.
How we do it
We scan all building envelope surfaces with a FLIR thermal camera during blower-door-induced pressure differential, capturing images that reveal missing insulation, air leakage, and moisture patterns.
What Home Energy Audit Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Standalone blower-door test | $350 - $600 |
| Thermal imaging inspection | $250 - $500 |
| Full home energy audit (comprehensive) | $400 - $800 |
What do I get after the audit?
You receive a written report with blower-door CFM50 reading, thermal images with annotations, prioritized scope of recommended work with estimated savings, and a written price for any work you choose to proceed with - no obligation. Call (830) 549-6646 to schedule.
Is the audit worth it for a small Kirby home?
Yes, smaller post-war homes often have the highest air leakage rates per square foot and the most cost-effective improvement opportunities; our audit frequently identifies $500-$1,500 in targeted air sealing that outperforms blanket insulation upgrades.
Brands We Service in Kirby
We install Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber products - no proprietary lock-in means we specify what’s right for your Kirby home’s specific conditions. Our San Antonio office stocks common batt and blown-in materials for next-day availability on most Kirby jobs. See our brands for detailed specifications.
Pricing for Insulation in Kirby, TX
| Service | Typical range in Kirby |
|---|---|
| Crawl space vapor barrier | $1,200 - $2,800 |
| Full crawl space encapsulation | $3,500 - $7,500 |
| Attic radiant barrier | $1,500 - $3,200 |
| Insulation removal (contaminated) | $1,800 - $3,500 |
| Insulation replacement (blown-in) | $2,500 - $5,000 |
| Attic air sealing (comprehensive) | $1,200 - $2,800 |
| Drill-and-fill wall insulation | $2,800 - $5,500 |
| Attic sanitizing and decontamination | $1,500 - $3,000 |
| Rodent proofing and exclusion | $1,200 - $2,800 |
| Full home energy audit | $400 - $800 |
Prices in Kirby trend toward the lower half of Texas metro ranges because most homes are smaller single-story post-war structures with straightforward access, though pier-and-beam foundations with tight crawl spaces can add labor. Every job begins with a written price under Haven Standard Clause 1 - no work starts without it - and we offer a Free Second Opinion on any competing written estimate you bring us.
Neighborhoods We Serve in Kirby
We work throughout Kirby’s established residential areas, with crews dispatched from our San Antonio office for same-day or next-day response across the enclave. Most Kirby insulation jobs are concentrated in the original post-war subdivisions where the housing stock is most uniform and the need most consistent.
- Kirby Manor
- Bluebonnet Hills
- Forest Pines
- Kirby Terrace
- Rolling Acres
Service Area - Cities Near Kirby
Our crews serve Kirby and surrounding communities from our San Antonio dispatch office, with local response to Seguin, TX, New Braunfels, TX, Cibolo, TX, and Schertz, TX. Scheduling is coordinated centrally with named technicians and text notifications when en route to your home.
Serving Kirby, TX - Our Local Coverage Area
We’re based in the Kirby 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 Kirby
Most insulation retrofit work in Kirby does not require a permit, though crawl space encapsulation with structural modifications or electrical work for dehumidifiers may trigger a City of Kirby building department review; we handle permit research and application as part of our written scope when required.
We typically schedule Kirby appointments within one to three business days, with emergency response available for active leaks or HVAC failure related to insulation issues; a live person answers calls 24/7 to coordinate timing.
No - Kirby’s concentrated post-war housing stock makes it an efficient service area, and we perform multiple jobs per week in this enclave; the uniform construction means we arrive with the right materials and equipment already loaded.
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 Kirby 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.