Insulation in Selma, TX
Crawl space encapsulation and vapor barrier installation in Selma typically runs $2,800-$5,500 for homes in the 1,800-2,800 square foot range that dominate this market. Most Selma jobs we dispatch from our San Antonio office complete in one day, with crews arriving prepared for the clay-heavy soils and seasonal humidity spikes that define this stretch of I-35. Call (830) 529-7780 for a written price before any work starts - that’s Haven Standard Clause 1, no exceptions.
Why Selma Homes Are Different
Selma’s residential base is almost entirely a product of the 2000s-2010s I-35 growth corridor boom, meaning the city is dominated by a single generation of builder-grade tract homes installed with code-minimum R-30 attic insulation under the less stringent 2006/2009 IECC era. Now 10-20 years old, those same homes - built by national volume builders to identical floor plans across multiple subdivisions - are hitting the age where blown-in fiberglass has settled, air-sealing at top plates was never completed, and Climate Zone 2’s 150°F+ attic temperatures are driving outsized utility bills that a targeted retrofit can fix.
The February 2021 Winter Storm Uri freeze exposed how poorly air-sealed this newer construction was, with pipes bursting in homes less than 15 years old. Many tract subdivisions platted between 2005 and 2015 use open-web roof trusses with low heel heights, a pre-IRC-2012 design that makes full insulation depth at the eaves nearly impossible without blocking soffit ventilation. Installers who work these neighborhoods encounter the same truss geometry repeatedly across different streets and subdivisions, requiring baffling every time.
Our Main Selma Services
Most Selma homeowners who call us start with one of these three jobs.
Attic Insulation in Selma
Attic insulation in Selma means addressing settled R-30 fiberglass in 1,800-2,800 square foot tract homes that now perform closer to R-22. We measure existing depth, identify thermal bypasses at top plates and can lights, then specify either blown-in fiberglass from Owens Corning or Johns Manville, or spray foam at the roof deck if the homeowner wants conditioned attic storage. Every attic job includes air sealing first - we will not blow new insulation over an unsealed attic floor. Attic Insulation in Selma details our full process and pricing.
Spray Foam Insulation in Selma
Spray foam insulation in Selma makes sense for homeowners converting attic space to storage or dealing with ducts in vented attics that cook to 150°F each July. We specify open-cell foam at the roof deck for most Climate Zone 2 applications, using Demilec or Icynene products, and we always publish before-and-after blower-door numbers so you can verify the air-sealing result. Closed-cell is reserved for crawl space rim joists and occasional wall cavity work. Spray Foam Insulation in Selma covers specifications and cost ranges.
Blown-In Insulation in Selma
Blown-in insulation in Selma is the most common retrofit for settled fiberglass in 2005-2015 tract homes. We use GreenFiber cellulose or Owens Corning fiberglass, depending on attic conditions and homeowner preference, and we always complete top-plate and penetration sealing before the blower truck arrives. The low heel heights on open-web trusses in subdivisions like The Ridge and Retama Ranch mean baffles are non-negotiable at every eave. Blown-In Insulation in Selma has full details.
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 Selma
Selma’s post-2000 slab-on-grade construction means most homes don’t have full crawl spaces, but the pier-and-beam and partial-crawl exceptions - common in some early-2000s phases near Lookout Road and in select older pockets - suffer badly in our hot-humid Climate Zone 2. Ground moisture wicks upward through clay soils, wood moisture content climbs above 20%, and fiberglass batts sag against damp subflooring. Crawl Space Encapsulation & Vapor Barrier is the fix: sealed ground cover, perimeter drainage where needed, and conditioned air introduction.
Crawl Space Vapor Barrier
Signs you need it
Musty odors in first-floor rooms, cupping hardwood near exterior walls, or insulation batts drooping from floor joists signal ground moisture migration.
What it costs in Selma
Most Selma vapor barrier installations run $2,800-$4,200 for partial crawl spaces under 1,200 square feet.
How we do it
We remove degraded insulation, grade the soil, lay 12-mil reinforced polyethylene with sealed seams and mechanical fastening at walls, then install mechanical dehumidification if humidity readings exceed 65% RH.
Crawl Space Encapsulation
Signs you need it
Visible mold on joists, rusted HVAC boots, or pest activity in the crawl space indicate the envelope has failed and full encapsulation is warranted.
What it costs in Selma
Complete encapsulation in Selma typically ranges $4,500-$7,800 depending on crawl height, access difficulty, and whether perimeter drainage is required.
How we do it
We seal all vents, install rigid foam board on foundation walls, apply vapor barrier across floor and walls with sealed penetrations, then add a dedicated dehumidifier sized to the volume.
What Crawl Space Encapsulation & Vapor Barrier Costs in Selma
| Item | Typical range in Selma |
|---|---|
| Vapor barrier only (partial crawl) | $2,800 - $4,200 |
| Full encapsulation with dehumidifier | $4,500 - $7,800 |
| Crawl space insulation replacement | $1,800 - $3,200 |
How long does crawl space work take in Selma?
Most vapor barrier jobs finish in one day; full encapsulation with dehumidifier installation typically requires two days. We deliver a written scope, written warranty, and Documented Photo Record before the crew leaves.
Do I need a permit for crawl space encapsulation in Selma?
Selma follows Bexar County unincorporated permitting for most residential envelope work; dehumidifier electrical connections may require a separate electrical permit. We handle permit research as part of our written scope.
Radiant Barrier Installation in Selma
Selma’s 150°F+ attic temperatures, sustained for five to six months annually, make radiant barrier installation one of the highest-ROI retrofits available for 2000s-era tract homes with dark shingle roofs and vented attics. Builder-grade construction in this market rarely included radiant barrier sheathing, and the low heel heights on open-web trusses mean attic ventilation is often marginal at best. Radiant Barrier Installation blocks radiant heat transfer at the roof deck, reducing cooling load and extending HVAC equipment life.
Attic Radiant Barrier
Signs you need it
AC runs continuously after 2 PM, upstairs rooms stay 8-12°F warmer than downstairs, or ductwork in the attic feels hot to the touch.
What it costs in Selma
Radiant barrier installation in Selma attics typically runs $1,400-$2,800 for homes between 1,800 and 2,800 square feet.
How we do it
We staple perforated aluminum foil across bottom chords of roof trusses, maintaining vent pathways, or spray low-emissivity coating directly to roof deck if truss spacing is irregular.
Radiant Barrier & Ventilation
Signs you need it
Attic temperature exceeds 140°F on mild 85°F days, or soffit vents are blocked by insulation at every eave due to low heel heights.
What it costs in Selma
Combined radiant barrier with baffle installation and additional ventilation typically ranges $2,200-$3,800 in Selma.
How we do it
We install proper baffles at all eaves first, then apply radiant barrier, and add ridge vent or powered attic ventilation if static vent area falls below 1:300 ratio.
What Radiant Barrier Installation Costs in Selma
| Item | Typical range in Selma |
|---|---|
| Attic radiant barrier (foil) | $1,400 - $2,800 |
| Radiant barrier with ventilation upgrade | $2,200 - $3,800 |
| Spray-applied radiant barrier coating | $2,000 - $3,500 |
Does radiant barrier really work in humid climates like Selma?
Yes - radiant barrier reduces radiant heat gain by 95% regardless of humidity, though it must be paired with adequate ventilation because it does not address conductive or convective heat transfer. We measure attic ventilation rates before recommending.
Can radiant barrier be installed over existing insulation?
Foil radiant barrier installs to roof truss bottom chords, above insulation, so existing insulation can stay; spray coating requires temporary removal. We assess truss geometry during our initial inspection.
Insulation Removal & Replacement in Selma
Selma’s 10-20 year old tract homes are reaching the point where original blown-in fiberglass has settled 20-30%, rodent activity in unsealed attics has contaminated material, and the 2021 freeze introduced moisture damage in poorly ventilated cavities. Insulation Removal & Replacement is not a maintenance item - it’s a corrective action when the existing insulation can no longer perform its design function or poses health risks.
Contaminated Insulation Removal
Signs you need it
Visible droppings, urine staining on drywall ceilings, or a persistent ammonia odor in the HVAC system indicate contamination requiring removal.
What it costs in Selma
Contaminated insulation removal in Selma typically runs $1,800-$3,200 for attics under 1,500 square feet, with disposal and sanitizing included.
How we do it
We HEPA-vacuum all loose material, bag and dispose per Texas environmental guidelines, apply enzymatic sanitizer to substrate, then seal all entry points before installing replacement insulation.
Insulation Replacement
Signs you need it
Settled fiberglass below joist tops, water-stained insulation from pipe bursts, or R-value calculations showing performance below R-20 in Climate Zone 2.
What it costs in Selma
Full insulation replacement in Selma attics ranges $2,400-$4,500 depending on square footage, access difficulty, and whether air sealing is performed first.
How we do it
We remove existing material to substrate, photograph all top plates and penetrations, complete air sealing with documented blower-door verification, then install new blown-in fiberglass or cellulose to specified depth.
What Insulation Removal & Replacement Costs in Selma
| Item | Typical range in Selma |
|---|---|
| Contaminated insulation removal | $1,800 - $3,200 |
| Standard insulation removal (non-contaminated) | $1,200 - $2,400 |
| Insulation replacement with air sealing | $2,400 - $4,500 |
Is it cheaper to remove insulation myself in Selma?
DIY removal risks disturbing asbestos in pre-1990 material, violates disposal regulations for contaminated material, and voids most homeowners insurance if fire or structural damage occurs. We carry proper abatement and disposal licensing.
How do I know if my insulation needs removal or just topping off?
We measure settled depth, test for contamination, and inspect for moisture damage; if the substrate is clean and structurally sound, topping off with air sealing may suffice. Call (830) 529-7780 for an inspection - estimates are free.
Attic Air Sealing in Selma
Selma’s builder-grade tract homes were constructed with minimal attention to the pressure boundary at the ceiling plane - top plates were not sealed, can lights were not IC-rated or gasketed, and duct boots were cut into drywall with gaps left open to the attic. In Climate Zone 2, this means conditioned air escapes upward continuously, pulling hot, humid attic air inward through every crack. Attic Air Sealing is the prerequisite step we complete before any insulation work; we will not blow insulation over an unsealed attic floor.
Top Plate & Penetration Sealing
Signs you need it
Dust streaks around ceiling registers, cobwebs at recessed can lights, or rooms that never reach thermostat setpoint despite adequate insulation depth.
What it costs in Selma
Top plate and penetration sealing in Selma typically runs $1,200-$2,400 for standard tract homes with open-web trusses and multiple partition walls.
How we do it
We foam-seal all top plate joints, wire and pipe penetrations, and chase openings with one-component polyurethane, then verify with blower-door test before and after.
Can Light & Duct Boot Sealing
Signs you need it
Hot attic air blowing from ceiling registers when HVAC is off, or can lights that flicker due to thermal overload from attic heat infiltration.
What it costs in Selma
Can light sealing with pre-fabricated covers and duct boot sealing with mastic typically adds $800-$1,600 to a Selma attic air sealing job.
How we do it
We install fire-rated, airtight covers over non-IC can lights, seal duct boots with fiberglass mesh and mastic, and gasket all register boots to drywall.
What Attic Air Sealing Costs in Selma
| Item | Typical range in Selma |
|---|---|
| Top plate and penetration sealing | $1,200 - $2,400 |
| Can light and duct boot sealing | $800 - $1,600 |
| Complete attic air sealing package | $1,800 - $3,200 |
Will air sealing make my attic too hot?
No - air sealing stops conditioned air from escaping upward; attic ventilation handles heat removal. We verify existing vent area meets code minimum before sealing and recommend ventilation upgrades if needed.
Do you publish blower-door numbers for Selma jobs?
Yes - every applicable attic air sealing job receives before-and-after blower-door readings in CFM50, documented in your photo record. Most Selma tract homes start at 3,500-5,000 CFM50 and finish below 2,500 CFM50.
Wall Insulation in Selma
Selma’s 2000s-era tract homes were built with 2×4 studs and R-13 fiberglass batts in exterior walls - code minimum then, and inadequate now given 150°F attic temperatures and the thermal bridging through every stud. Because these homes are fully drywalled and finished, retrofit wall insulation requires specialized techniques that preserve interior finishes. Wall Insulation in Selma means injection foam or drill-and-fill methods that don’t require gutting rooms.
Injection Foam Wall Insulation
Signs you need it
Exterior walls hot to the touch in afternoon sun, rooms with two exterior walls that are 6-10°F warmer than interior rooms, or energy bills 30% above comparable homes.
What it costs in Selma
Injection foam wall insulation in Selma typically runs $3,500-$6,500 for a 2,000 square foot home with standard window density.
How we do it
We drill 5/8″ holes through exterior siding at stud spacing, inject slow-rise polyurethane foam to fill cavities without bowing drywall, then plug and match siding texture.
Drill & Fill Wall Insulation
Signs you need it
Existing fiberglass batts settled in bottom of wall cavities, or homeowner preference for cellulose over foam due to chemical sensitivity concerns.
What it costs in Selma
Drill-and-fill with dense-pack cellulose in Selma ranges $2,800-$5,200 for similar square footage, with lower material cost but higher labor per cavity.
How we do it
We remove a row of siding or drill through mortar joints, blow GreenFiber cellulose to 3.5 pounds per cubic foot density, then seal penetrations with color-matched material.
What Wall Insulation Costs in Selma
| Item | Typical range in Selma |
|---|---|
| Injection foam (full home) | $3,500 - $6,500 |
| Dense-pack cellulose drill-and-fill | $2,800 - $5,200 |
| Partial wall insulation (one or two walls) | $1,200 - $2,400 |
Can you insulate walls without removing drywall?
Yes - injection foam and dense-pack cellulose both install through exterior penetrations; interior drywall stays intact. We verify cavity depth and absence of blocking with borescope inspection first.
Does wall insulation help with sound as well as temperature?
Dense-pack cellulose provides significant STC improvement for exterior walls; for interior soundproofing between rooms, we specify Rockwool or specialty acoustic assemblies. Ask about your specific application when you call (830) 529-7780.
Attic Cleaning & Rodent Proofing in Selma
Selma’s rapid suburban development displaced native wildlife into remaining greenbelts and drainage corridors, and unsealed 2000s-era attics with builder-grade vent screens provide easy entry for roof rats, squirrels, and raccoons. Contaminated insulation, gnawed wiring, and compressed pathways through fiberglass create fire and health hazards that compound over time. Attic Cleaning & Rodent Proofing restores safe, usable attic space and prevents re-entry with materials that outlast standard hardware store solutions.
Attic Sanitizing & Decontamination
Signs you need it
Visible droppings concentrated near HVAC penetrations, urine stains on insulation or rafters, or a musty odor detectable through ceiling registers.
What it costs in Selma
Attic sanitizing and decontamination in Selma typically runs $1,200-$2,400 for attics under 1,500 square feet with moderate contamination.
How we do it
We remove contaminated material, HEPA vacuum all surfaces, apply enzymatic sanitizer to break down organic matter, then treat for odor with oxidizing agents before reinstalling insulation.
Rodent Proofing & Exclusion
Signs you need it
Scratching noises in walls or ceiling at dawn and dusk, gnaw marks on fascia boards, or daylight visible through gaps at roof-to-wall intersections.
What it costs in Selma
Rodent proofing and exclusion in Selma ranges $1,800-$3,500 depending on roof complexity, number of entry points, and whether soffit repairs are needed.
How we do it
We seal all entry points with 26-gauge steel mesh, copper wool, or concrete where appropriate, install ridge guard and plumbing vent collars, and guarantee the work for one year with follow-up inspection.
What Attic Cleaning & Rodent Proofing Costs in Selma
| Item | Typical range in Selma |
|---|---|
| Attic sanitizing and decontamination | $1,200 - $2,400 |
| Rodent proofing and exclusion | $1,800 - $3,500 |
| Complete attic restoration (cleaning + proofing + insulation) | $3,500 - $6,500 |
How do I know if rodents are in my attic or walls?
Nocturnal scratching, gnawed plastic or wood, and concentrated droppings near heat sources are definitive signs; we inspect with borescope cameras to confirm extent before quoting.
Will rodents return after proofing?
Our exclusion work carries a one-year guarantee; if rodents breach our work, we return at no charge. Success requires sealing every entry larger than 1/4 inch - we document each with photos.
Home Energy Audit in Selma
A home energy audit in Selma identifies which of the predictable deficiencies in 2000s-era tract homes are costing you money - settled insulation, unsealed top plates, duct leakage, or inadequate attic ventilation - and in what order to address them for maximum return. Without diagnostic data, homeowners guess at solutions and often spend on the wrong improvement first. Home Energy Audit provides a written priority list with estimated savings for each measure, backed by blower-door and thermal imaging evidence.
Blower Door Test
Signs you need it
Rooms that never reach temperature, excessive dust, or energy bills that climbed 20% or more without rate changes suggest envelope leakage measurable with pressurization testing.
What it costs in Selma
Standalone blower-door testing in Selma typically runs $350-$550; when bundled with thermal imaging and insulation inspection, the complete audit is $450-$750.
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 showing total envelope leakage - then locate leaks with smoke pencil and infrared camera.
Thermal Imaging Inspection
Signs you need it
Visible temperature variations on walls or ceilings, ice damming in rare freeze events, or rooms that cool unevenly after sunset indicate thermal bridging or missing insulation detectable with infrared.
What it costs in Selma
Thermal imaging as part of a comprehensive audit adds $150-$250 to base blower-door testing; standalone thermal inspection runs $300-$450.
How we do it
We scan all exterior surfaces with FLIR cameras during heating or cooling season, documenting Delta-T patterns that reveal missing insulation, air leakage, or moisture intrusion in wall cavities.
What Home Energy Audit Costs in Selma
| Item | Typical range in Selma |
|---|---|
| Blower-door test only | $350 - $550 |
| Comprehensive audit (blower door + thermal + inspection) | $450 - $750 |
| Duct leakage test add-on | $200 - $350 |
Will an energy audit tell me exactly what to fix first?
Yes - the written report ranks measures by cost-effectiveness and estimated annual savings, so you can phase work by budget or tackle the highest-ROI item immediately.
How long does a home energy audit take in Selma?
Most audits require 2.5-4 hours on site depending on home size; you receive preliminary findings same day and the written report with blower-door numbers within 48 hours.
Brands We Service in Selma
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 home, not what’s in our warehouse. Most Selma jobs draw from stock held at our San Antonio office, with next-day availability on standard items. our brands
Pricing for Insulation in Selma, TX
| Service | Typical range in Selma |
|---|---|
| Crawl space vapor barrier | $2,800 - $4,200 |
| Crawl space encapsulation | $4,500 - $7,800 |
| Radiant barrier (attic) | $1,400 - $2,800 |
| Radiant barrier with ventilation | $2,200 - $3,800 |
| Insulation removal (contaminated) | $1,800 - $3,200 |
| Insulation replacement with air sealing | $2,400 - $4,500 |
| Attic air sealing (complete) | $1,800 - $3,200 |
| Wall insulation (injection foam) | $3,500 - $6,500 |
| Attic sanitizing and decontamination | $1,200 - $2,400 |
| Rodent proofing and exclusion | $1,800 - $3,500 |
| Home energy audit (comprehensive) | $450 - $750 |
Prices in Selma trend toward the higher end when homes have low heel-height trusses requiring extensive baffling, or when access is limited by finished storage areas. Every job begins with a written price - flat, itemized, and signed before work starts - under Haven Standard Clause 1.
Neighborhoods We Serve in Selma
We work across Selma’s full residential footprint, from the earliest 2000s phases near Lookout Road through the 2010s infill near Retama Parkway. Crews dispatched from our San Antonio office typically arrive within 45 minutes for scheduled appointments.
- The Ridge
- Retama Ranch
- Woodbridge
- Selma Town Center area
- Lookout Road corridor
Service Area - Cities Near Selma
Our crews serve the full I-35 northeast corridor including Boerne, TX, Fair Oaks Ranch, TX, Scenic Oaks, TX, and Helotes, TX. Scheduling and dispatch are coordinated from our San Antonio office, with local crews assigned by proximity to minimize response time across the metro.
Serving Selma, TX - Our Local Coverage Area
We’re based in the Selma 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 Selma
Yes - for urgent situations like post-storm water damage or failed HVAC related to insulation loss, we typically dispatch same day when you call before noon. Standard inspections and estimates usually schedule within 48 hours.
Selma follows Bexar County unincorporated permitting standards for most residential insulation work; spray foam and electrical components may require separate permits. We research permit requirements and include them in your written scope when applicable.
Clear attic access paths, secure pets, and have recent utility bills available if we’re conducting an energy audit. We bring all tools, materials, and protective equipment; you don’t need to provide anything.
Call (830) 529-7780 today for a free estimate. A live person answers 24/7, and you’ll receive a written price before any work starts - that’s Haven Standard Clause 1, and it’s how we’ve 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 Selma Customers Say
"Crawl space encapsulation done properly. Photographs of the vapour barrier at every seam, and the damp smell in the hallway is gone."
- Ainsley P."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.