Insulation in Kirby, TX
Crawl space encapsulation and vapor barrier work in Kirby typically runs $3,200-$7,800 for pier-and-beam homes, with most jobs completed in two days. Because Kirby is a self-governing enclave surrounded by San Antonio, permits must be pulled through Kirby’s own city hall, a detail that stalls regional contractors who assume San Antonio jurisdiction covers the job. We dispatch crews from our San Antonio office and coordinate Kirby permits directly through City Hall so work starts on schedule. Call (737) 227-6219 for a written price before anyone lifts a tool.
Why Kirby Homes Are Different
Kirby’s housing stock is almost entirely 1950s-1960s GI Bill-era construction built for working-class and military families near the eastern military corridors. These homes were originally insulated to R-7 or R-11, far below the R-38 minimum now recommended for Climate Zone 2. Attic cavities are shallow, roof pitches are low, and decades of 145-160°F summer temperatures have degraded what little insulation was installed.
The February 2021 Winter Storm Uri exposed another vulnerability: under-insulated attics and unprotected pipe chases in this era of construction froze across Bexar County, and Kirby saw sustained demand for whole-home assessments afterward. Bexar County’s expansive black-clay soils cause chronic foundation movement in Kirby’s remaining pier-and-beam homes, which opens gaps between floor insulation batts and creates air infiltration that homeowners often misdiagnose as an HVAC problem. Any contractor working Kirby needs to understand these soil dynamics and the permit path through Kirby City Hall, not San Antonio’s Development Services Department.
Our Main Kirby Services
Most Kirby homeowners who call us start with attic work or spray foam. Here is what each job looks like in this market.
Attic Insulation in Kirby
Attic insulation in Kirby almost always means remediation of 60- to 70-year-old fiberglass batts that have compressed, shifted, or degraded in sustained attic heat. We remove the old material, seal the attic floor, and install new insulation to R-38 or above. Shallow cavities and low-pitch roofs make access tight, so we plan material handling before we arrive. Attic Insulation in Kirby covers our full process and pricing.
Spray Foam Insulation in Kirby
Spray foam works well in Kirby’s pier-and-beam crawl spaces and in attic conversions where conventional batts cannot conform to irregular framing. Closed-cell foam at 2-3 inches provides vapor barrier and insulation in one pass, which matters in humid crawl spaces. We specify Demilec or Icynene products and publish before-and-after blower-door numbers on every applicable job. Spray Foam Insulation in Kirby has full details.
Blown-In Insulation in Kirby
Blown-in cellulose or fiberglass is the dominant retrofit for Kirby’s slab-on-grade homes with shallow attics. The material fills irregular cavities and covers top plates that air sealing has already addressed. We source Owens Corning and Johns Manville loose-fill products and verify depth and density with a written record. Blown-In Insulation in Kirby explains our installation 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 Kirby
Kirby’s remaining pier-and-beam homes sit over crawl spaces that breathe Bexar County’s humid air through foundation vents year-round. Black-clay soil movement shifts piers, opens gaps in floor insulation, and allows moisture to accumulate against subflooring. Encapsulation seals the crawl space from outside air, controls ground moisture with a vapor barrier, and protects the structural floor system. We include Crawl Space Encapsulation & Vapor Barrier in our full building-envelope service line.
Most Kirby encapsulation jobs require permit coordination through Kirby City Hall, not San Antonio, and we handle that paperwork before scheduling crew arrival. Crews are background-checked and uniformed, and you get a text when your technician is en route.
Crawl Space Vapor Barrier
Signs you need it
Your crawl space has standing water after rain, visible mold on joists, or a musty smell that enters the living space through floor gaps.
What it costs in Kirby
Most crawl space vapor barrier installations in Kirby run $1,800-$3,500 for standard pier-and-beam footprints.
How we do it
We grade the ground, lay 6-mil or thicker polyethylene sheeting with sealed seams, and fasten to foundation walls to create a continuous moisture break.
Crawl Space Encapsulation
Signs you need it
Your HVAC runs constantly in summer, your floors feel cold or damp, or you’ve replaced floor insulation more than once due to moisture saturation.
What it costs in Kirby
Full crawl space encapsulation in Kirby typically ranges from $3,200-$7,800 depending on footprint, pier count, and whether dehumidification is added.
How we do it
We seal foundation vents, install vapor barrier across ground and walls, apply closed-cell spray foam to rim joists, and add a dehumidifier if humidity readings warrant it.
What Crawl Space Encapsulation & Vapor Barrier Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Crawl space vapor barrier | $1,800 - $3,500 |
| Partial encapsulation (vapor barrier + sealing) | $2,800 - $5,200 |
| Full encapsulation with dehumidifier | $4,500 - $7,800 |
How long does crawl space encapsulation take in Kirby?
Most Kirby encapsulation jobs finish in one to two days. Pier-and-beam homes with complex layouts or active moisture remediation may extend to three days. We provide a written schedule with the price before work starts.
Do Kirby permits require a special inspection for crawl space work?
Yes, Kirby issues its own permits through City Hall, and our crew schedules the required inspection so you do not coordinate with the city directly. The permit cost is itemized in your written price.
Radiant Barrier Installation in Kirby
Kirby attic temperatures reach 145-160°F in July and August, radiating heat through ceilings and forcing air conditioners to run continuously. Radiant barrier reflects that radiant heat back toward the roof deck rather than allowing it to penetrate the living space. In Kirby’s 1950s-1960s homes with shallow attics and minimal existing insulation, radiant barrier is often the most cost-effective first upgrade before adding bulk insulation. We include Radiant Barrier Installation in our full service line.
Our crews install radiant barrier foil across rafters or directly to roof decking, depending on attic geometry and ventilation. Every job includes a documented photo record and, where applicable, before-and-after blower-door readings.
Attic Radiant Barrier
Signs you need it
Your attic floor insulation is adequate but rooms still heat unevenly, or your air conditioner cannot maintain set temperature on the hottest afternoons.
What it costs in Kirby
Attic radiant barrier installation in Kirby typically runs $1,400-$2,800 for standard tract-home footprints.
How we do it
We staple perforated aluminum foil across bottom chords of roof trusses, maintaining air gap above and below the barrier for convective ventilation.
Radiant Barrier Roof Deck
Signs you need it
Your attic has limited headroom for a draped barrier, or you are replacing the roof and want integrated radiant rejection at the deck surface.
What it costs in Kirby
Radiant barrier applied directly to roof decking in Kirby ranges from $2,000-$3,500 depending on pitch complexity and accessibility.
How we do it
We apply radiant barrier sheathing or foil-faced decking during roof replacement, or spray adhesive-backed foil to existing decking where structural replacement is not planned.
What Radiant Barrier Installation Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Attic radiant barrier (truss draping) | $1,400 - $2,800 |
| Radiant barrier roof deck application | $2,000 - $3,500 |
| Radiant barrier with attic air sealing package | $2,600 - $4,200 |
Does radiant barrier work without new insulation in Kirby?
It helps, but we do not recommend it as a standalone fix in Kirby’s under-insulated 1950s-1960s homes. Radiant barrier blocks radiant heat; conduction still moves through thin or degraded insulation. We assess both and write a scope that addresses the actual heat flow.
Will radiant barrier affect my roof warranty?
Properly installed perforated radiant barrier does not void shingle warranties; it allows moisture vapor to escape. We document our installation method and materials for your warranty file.
Insulation Removal & Replacement in Kirby
Kirby’s original 1950s-1960s insulation has often been compromised by roof leaks, rodent activity, or simple thermal degradation after decades in 140°F+ attics. Removal and replacement is not a cleanup job; it is a structural remediation that exposes the attic floor for air sealing before new insulation goes in. We include Insulation Removal & Replacement in our full building-envelope service line.
Every removal job begins with a written price and ends with a documented photo record. If we find active rodent infestation or mold, we stop, photograph, and present options before continuing.
Attic Insulation Removal
Signs you need it
Your attic insulation is compressed below its original thickness, has visible water staining, or emits dust into the living space through recessed lights.
What it costs in Kirby
Attic insulation removal in Kirby typically runs $1,200-$2,400 for standard tract-home attic footprints.
How we do it
We deploy negative-air machines, bag insulation in the attic, and remove through exterior access to prevent contamination of living spaces.
Contaminated Insulation Removal
Signs you need it
Your attic has rodent droppings, urine saturation, or mold growth that makes the insulation a health hazard rather than just ineffective.
What it costs in Kirby
Contaminated insulation removal with sanitizing in Kirby ranges from $2,000-$4,500 depending on contamination extent and required PPE protocol.
How we do it
We suit in full PPE, remove contaminated material under negative pressure, apply antimicrobial treatment to exposed surfaces, and verify clearance before new insulation is specified.
What Insulation Removal & Replacement Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Standard attic insulation removal | $1,200 - $2,400 |
| Contaminated insulation removal + sanitizing | $2,000 - $4,500 |
| Removal + replacement with air sealing | $3,500 - $6,800 |
Do I have to leave my house during insulation removal?
No, our negative-air containment keeps the work isolated to the attic. We seal the attic hatch and run HEPA filtration during removal. You receive photos of the sealed containment before we start.
How do I know if my insulation is contaminated or just old?
We inspect during our initial assessment. Rodent droppings, dark staining, or ammonia odor indicate contamination requiring PPE removal. Uniform graying or compression without odor typically means standard removal. We document what we find and write separate scopes for each condition.
Attic Air Sealing in Kirby
Kirby’s 1950s-1960s homes were built before continuous air barriers were code, and decades of foundation movement have opened new pathways between conditioned space and attic. Blower-door testing in Kirby homes regularly shows leakage at top plates, can lights, and duct boots that insulation alone cannot fix. We seal first, then insulate, and publish the before-and-after blower-door numbers so you see the performance change. We include Attic Air Sealing in our full service line.
Under Haven Standard Clause 1, you get a written price before any work starts. Air sealing is never an upsell; it is prerequisite work we complete before adding insulation.
Top Plate & Penetration Sealing
Signs you need it
Your blower-door test shows excessive leakage at the attic floor plane, or you feel drafts at exterior wall outlets and baseboards during winter.
What it costs in Kirby
Top plate and penetration sealing in Kirby typically runs $800-$1,600 for standard tract-home attic footprints.
How we do it
We apply fire-rated caulk and foam sealant at all top plate joints, wire penetrations, and plumbing stacks, then verify with blower-door retest.
Can Light & Duct Boot Sealing
Signs you need it
Your recessed lights flicker in wind, your HVAC ducts blow attic dust, or rooms farthest from the air handler never reach set temperature.
What it costs in Kirby
Can light and duct boot sealing in Kirby ranges from $600-$1,400 depending on fixture count and duct configuration.
How we do it
We install fire-rated covers over can lights, seal duct boots with mastic and mesh, and pressure-test the duct system where accessible.
What Attic Air Sealing Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Top plate & penetration sealing | $800 - $1,600 |
| Can light & duct boot sealing | $600 - $1,400 |
| Full attic air sealing (comprehensive) | $1,400 - $2,800 |
What is a blower-door test and do I need one?
A blower-door test is a pressurization reading that shows, in one number, how much air your building envelope is losing. We conduct one before and after air sealing in Kirby so you have documented proof of the improvement. The numbers are included in your job record.
Can air sealing alone lower my electric bill?
It reduces the load, but Kirby homes with R-7 or R-11 insulation still need insulation upgrade for full performance. We write scopes that sequence air sealing first, then insulation, with blower-door verification at each stage.
Wall Insulation in Kirby
Kirby’s 1950s-1960s tract homes were built with empty stud cavities or minimal rock wool batts that have settled or degraded. Exterior walls in these homes conduct heat directly from 100°F+ outdoor air in summer and lose conditioned air in winter. Wall insulation retrofit is invasive but often the only way to address comfort complaints in rooms with no attic access above. We include Wall Insulation in our full building-envelope service line.
We use injection foam or drill-and-fill methods that minimize interior disruption. Every job gets a written scope, written warranty, and documented photo record before crew departure.
Injection Foam Wall Insulation
Signs you need it
Your exterior walls feel hot to the touch in summer, or you have removed interior drywall and found empty stud cavities.
What it costs in Kirby
Injection foam wall insulation in Kirby typically runs $2,400-$4,800 for a 1,200-1,600 square foot home.
How we do it
We drill 2-inch holes at stud-bay intervals, inject slow-rise foam that fills cavities without bowing drywall, then patch and texture match.
Drill & Fill Wall Insulation
Signs you need it
Your home has settled rock wool or fragmented batt insulation in walls, and you want dense-pack fiberglass or cellulose without full gut renovation.
What it costs in Kirby
Drill-and-fill dense-pack wall insulation in Kirby ranges from $1,800-$3,600 for standard tract-home wall area.
How we do it
We remove exterior siding or drill through interior drywall, blow Knauf or Owens Corning dense-pack material to 3.5 pounds per cubic foot, and seal penetrations.
What Wall Insulation Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Drill & fill (dense-pack cellulose/fiberglass) | $1,800 - $3,600 |
| Injection foam (slow-rise, existing walls) | $2,400 - $4,800 |
| Exterior wall insulation (sided homes, remove/replace) | $3,200 - $6,500 |
Will injection foam damage my drywall?
Slow-rise formulations are specified specifically to avoid bowing. We drill at stud-bay centers, monitor expansion, and have patched thousands of Kirby-style homes without callback for wall distortion.
Do you insulate interior walls for sound?
We do interior wall soundproofing on request, typically with Rockwool Safe’n’Sound batts during renovation. This is not standard in our wall insulation scope unless specified; we write it as a separate line item if you want it.
Attic Cleaning & Rodent Proofing in Kirby
Kirby’s mature tree canopy and pier-and-beam construction create accessible entry points for rodents seeking attic shelter. Original 1950s-1960s construction often lacks modern rodent-proofing details at eaves, vents, and pipe penetrations. Contaminated attic insulation is a health hazard, not just a comfort problem, and cleaning without proofing guarantees recurrence. We include Attic Cleaning & Rodent Proofing in our full service line.
Every attic cleaning job includes a documented photo record of contamination extent, removal process, and proofing completion. We do not clean attics without also sealing entry points; Haven Standard requires solving the problem, not treating symptoms.
Attic Sanitizing & Decontamination
Signs you need it
Your attic has visible rodent droppings, urine staining on insulation or decking, or a persistent odor that enters through recessed light fixtures.
What it costs in Kirby
Attic sanitizing and decontamination in Kirby typically runs $1,600-$3,200 depending on contamination square footage and required antimicrobial treatment.
How we do it
We remove contaminated insulation under negative pressure, HEPA-vacuum all surfaces, apply EPA-registered antimicrobial, and verify with ATP testing before new insulation is specified.
Rodent Proofing & Exclusion
Signs you need it
You hear scratching in walls or attic at night, find droppings in garage or attic, or have had recurring rodent issues despite trapping or baiting.
What it costs in Kirby
Rodent proofing and exclusion in Kirby ranges from $900-$2,000 for standard tract-home perimeter and roofline sealing.
How we do it
We inspect roofline, eaves, vents, and foundation with photo documentation, seal all entry points 1/4-inch or larger with metal flashing or hardware cloth, and provide written warranty on exclusion work.
What Attic Cleaning & Rodent Proofing Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Attic sanitizing & decontamination | $1,600 - $3,200 |
| Rodent proofing & exclusion | $900 - $2,000 |
| Full attic restoration (cleaning + proofing + insulation) | $3,500 - $7,500 |
How do I know if rodents are currently in my attic?
Fresh droppings, gnaw marks on wood or wiring, and nighttime scratching are active signs. We inspect during our assessment and photograph evidence. If activity is current, we coordinate with your pest control or refer trapping before we begin cleaning.
Does insurance cover attic cleaning after rodents?
Some homeowner policies cover contamination remediation; most exclude rodent damage itself. We document everything with photos and written scope to support your claim if coverage applies. We do not bill insurance directly.
Home Energy Audit in Kirby
Kirby’s 1950s-1960s homes were built before energy codes existed, and most have never had a professional assessment of where conditioned air escapes. A home energy audit identifies the specific leaks, insulation gaps, and duct deficiencies that drive high utility bills and uneven temperatures. We include Home Energy Audit in our full service line, and every audit includes a written scope with prioritized recommendations and price options.
Our audits are diagnostic, not sales presentations. You receive blower-door numbers, thermal images, and a written report you can use with any contractor. We also offer Free Second Opinion on any written estimate from another auditor.
Blower Door Test
Signs you need it
Your utility bills are significantly higher than neighbors with similar homes, or you have completed insulation upgrades without seeing expected savings.
What it costs in Kirby
A standalone blower-door test in Kirby typically runs $350-$550, or it is included at no additional charge within a full home energy audit.
How we do it
We mount a calibrated fan in an exterior door, depressurize the house to 50 Pascals, and measure CFM50 to quantify total envelope leakage and identify dominant leak paths.
Thermal Imaging Inspection
Signs you need it
Your walls or ceilings show temperature variations you can feel by hand, or you suspect missing insulation behind finished surfaces.
What it costs in Kirby
Thermal imaging inspection in Kirby ranges from $250-$450 as a standalone service, or included within a comprehensive audit package.
How we do it
We scan interior and exterior surfaces with a FLIR camera during controlled temperature differential, marking thermal bridges and insulation voids on photo documentation.
What Home Energy Audit Costs in Kirby
| Item | Typical range in Kirby |
|---|---|
| Blower door test (standalone) | $350 - $550 |
| Thermal imaging inspection | $250 - $450 |
| Comprehensive home energy audit | $450 - $850 |
What does a home energy audit include in Kirby?
A comprehensive audit includes blower-door test, thermal imaging, insulation inspection, duct leakage test, and written scope with prioritized recommendations and price options. You keep the report regardless of whether you hire us for the work.
Can I use my audit report with another contractor?
Yes. The report is your property. We write it to industry standards so any qualified contractor can bid from it. We also offer Free Second Opinion on any written estimate you receive elsewhere.
Brands We Service in Kirby
We source insulation and air-sealing materials from Owens Corning, Johns Manville, Knauf, and Rockwool, with no proprietary product lock-in that limits your options. Our San Antonio office stocks common batt, loose-fill, and foam specifications for Kirby jobs, and most materials are on-site within 24 hours of scope approval. See our brands for full product lines.
Pricing for Insulation in Kirby, TX
| Service | Typical range in Kirby |
|---|---|
| Crawl space vapor barrier | $1,800 - $3,500 |
| Full crawl space encapsulation | $3,200 - $7,800 |
| Attic radiant barrier | $1,400 - $2,800 |
| Radiant barrier roof deck | $2,000 - $3,500 |
| Attic insulation removal | $1,200 - $2,400 |
| Contaminated insulation removal | $2,000 - $4,500 |
| Top plate & penetration sealing | $800 - $1,600 |
| Full attic air sealing | $1,400 - $2,800 |
| Drill & fill wall insulation | $1,800 - $3,600 |
| Injection foam wall insulation | $2,400 - $4,800 |
| Attic sanitizing & decontamination | $1,600 - $3,200 |
| Comprehensive home energy audit | $450 - $850 |
Price in Kirby is driven primarily by accessibility in shallow attics, pier-and-beam crawl space complexity, and the permit coordination required through Kirby City Hall. Every job begins with a written price before any work starts, and we never add charges beyond the written scope without your prior approval.
Neighborhoods We Serve in Kirby
We work across Kirby’s established neighborhoods, from the original GI Bill tracts near FM 78 to the infill areas along Binz-Engleman Road. Most Kirby addresses are within 25 minutes of our San Antonio dispatch point, and we schedule same-day or next-day assessments for active comfort or moisture emergencies.
- Original Kirby Tracts (near FM 78)
- Binz-Engleman Road area
- Kirby Manor
- Woodlake area (Kirby portions)
- Springwood subdivision
Service Area - Cities Near Kirby
Our crews serve the full Bexar County and northern Comal County corridor, with dispatch coordinated from our San Antonio office. We regularly work in Canyon Lake, TX, Bulverde, TX, New Braunfels, TX, and Timberwood Park, TX, with the same written-price protocol and documented photo record on every job.
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
Kirby is a self-governing enclave city, so permits must be pulled through Kirby City Hall, not San Antonio Development Services. We handle this paperwork for every job that requires it, and the permit cost is itemized in your written price before work starts.
Most Kirby homeowners receive a same-day or next-day assessment slot. Active moisture intrusion, post-storm damage, or HVAC failure in summer heat gets priority scheduling. A live person answers calls 24/7 to coordinate timing.
Kirby’s 1950s-1960s housing stock has shallow attics, low-pitch roofs, original R-7 to R-11 insulation, and pier-and-beam foundations affected by black-clay soil movement. These conditions require specific sequencing: air sealing before insulation, moisture control before thermal upgrades, and documented verification at each stage.
Call (737) 227-6219 for a free estimate with a written price before any work starts. Under Haven Standard, every Kirby job gets a flat price, written scope, and written warranty before anyone lifts a tool.
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 same-day.
- 4You approve before work beginsNothing starts until you say go.
What Kirby Customers Say
"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."Two other companies quoted to blow more insulation on top of what was there. These were the only ones who said the existing material had to come out first, and explained why."
- Clifford E."Crawl space encapsulation done properly. Photographs of the vapour barrier at every seam, and the damp smell in the hallway is gone."
- Ainsley P.