Insulation in Cibolo, TX
Most Cibolo homes built between 2000 and 2020 were delivered with minimum-code attic insulation and unsealed building envelopes that leak 20-30% of conditioned air into vented attic spaces. Crawl space encapsulation and vapor barrier work here often reveals the same pattern: slab-on-grade construction with moisture wicking through block walls and wood framing that was never sealed to the soil below. We’re Envelope Insulation Co., dispatching crews from our San Antonio office to Cibolo daily, and we start every job with a written price before any work starts - call (830) 549-6646 for a free estimate.
Why Cibolo Homes Are Different
Cibolo’s explosive growth from roughly 3,000 residents in 2000 to well over 30,000 means nearly the entire housing stock consists of 2000s-2020s production-builder tract homes. Streets near Steele High School and throughout Saddle Creek, the Cibolo Canyons-adjacent subdivisions, and corridors along FM 1103 and FM 78 are lined with DR Horton and Lennar builds that look new but perform old.
These homes were built to minimum Texas energy-code standards with blown fiberglass attics, often R-30 to R-38, and HVAC ducts routed through vented, unconditioned attic cavities. Summer afternoons in Cibolo hit 98-103°F regularly, pushing attic temperatures above 140°F and amplifying duct losses. Winter Storm Uri in February 2021 exposed how thin wall cavities and uninsulated plumbing chases failed in homes that owners assumed were efficient. The result: CPS Energy bills that shock homeowners in July, and building envelopes that underperform despite their age.
Our Main Cibolo Services
These are the two services Cibolo homeowners call about most, with blown-in rounding out the top three:
Attic Insulation in Cibolo
Attic insulation in Cibolo typically means upgrading builder-grade blown fiberglass that has settled below its labeled R-value or addressing thermal bypasses where insulation was never properly placed around ductwork or top plates. We inspect every attic for air leaks before adding material - sealing first, insulating second - and provide before-and-after blower-door numbers so you can verify the performance change. Attic Insulation in Cibolo covers full upgrades, targeted additions, and integration with radiant barrier systems.
Spray Foam Insulation in Cibolo
Spray foam insulation in Cibolo is often the right choice for homeowners who want to convert a vented attic into conditioned space or seal complex geometry around tray ceilings and bonus-room kneewalls. We use open-cell and closed-cell products from Owens Corning, Johns Manville, and Demilec, selected for the specific application rather than pushed as a default. Every spray foam job includes a written scope, documented photo record, and blower-door verification where applicable. Spray Foam Insulation in Cibolo details open-cell, closed-cell, and hybrid applications.
Blown-In Insulation in Cibolo
Blown-in insulation in Cibolo remains the most cost-effective upgrade for production homes with accessible attics and intact existing insulation that simply needs more depth. We blow fiberglass or cellulose from GreenFiber and Knauf over a sealed attic floor, never over unsealed penetrations, and we mark depth markers so you can verify coverage. Blown-In Insulation in Cibolo covers fiberglass, cellulose, and cap-sheet applications over existing material.
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 Cibolo
Cibolo’s slab-on-grade construction means true crawl spaces are less common than in pier-and-beam areas, but where they exist - in older homes near original Cibolo development and in some custom builds - they suffer from the same clay-soil moisture dynamics that plague the broader San Antonio metro. Summer humidity wicks through block walls, and winter temperature differentials drive condensation on cool framing. Crawl space encapsulation and vapor barrier work here starts with moisture source control, not plastic sheeting alone.
Crawl Space Encapsulation
Signs you need it
Musty odors in living spaces, visible mold on floor joists, or insulation falling from dampened subfloors indicate an unencapsulated crawl space in Cibolo’s humid climate.
What it costs in Cibolo
Full crawl space encapsulation in Cibolo typically runs $4,500-$8,500 for a standard residential footprint, with larger or heavily conditioned crawl spaces reaching $10,000-$15,000.
How we do it
We install a reinforced vapor barrier across the soil, seal foundation vents, apply closed-cell spray foam or rigid board to walls, and add mechanical dehumidification where moisture load requires it.
Crawl Space Moisture Control
Signs you need it
Relative humidity readings above 70% in the crawl space, warping hardwood floors above, or efflorescence on block walls signal moisture control failure.
What it costs in Cibolo
Standalone moisture control with sump pump and dehumidifier installation in Cibolo typically costs $2,800-$5,200, depending on crawl space square footage and groundwater conditions.
How we do it
We grade the soil to a central sump pit, install a sealed sump with battery backup where indicated, and size a dehumidifier to the calculated air volume with a dedicated drain line.
What Crawl Space Encapsulation & Vapor Barrier Costs in Cibolo
| Item | Typical range in Cibolo |
|---|---|
| Basic vapor barrier (6-mil, soil only) | $1,200-$2,500 |
| Full encapsulation with wall insulation | $4,500-$8,500 |
| Encapsulation with dehumidification | $6,500-$12,000 |
Does encapsulation help with Cibolo’s clay soil moisture?
Yes - Cibolo’s expansive clay soils hold moisture against foundation walls year-round, and a sealed vapor barrier with perimeter drainage interrupts that wicking path. We document pre- and post-encapsulation humidity readings so you can verify the change.
How long does crawl space work take in Cibolo?
Most encapsulations finish in 2-4 days, with moisture control additions adding another day. We provide a written schedule with your written price before anyone starts - Haven Standard Clause 1, no exceptions. Call (830) 549-6646 to schedule an inspection.
Radiant Barrier Installation in Cibolo
Cibolo’s vented attics regularly exceed 140°F in summer, and production homes with dark shingle roofs and minimal existing insulation suffer the most. Radiant barrier installation reflects infrared heat away from living spaces and, when paired with air sealing, reduces the radiant heat load that HVAC ducts in the attic must overcome. Radiant barrier installation is often the highest-ROI upgrade for Cibolo homes that are structurally sound but thermally porous.
Attic Radiant Barrier
Signs you need it
Second-story rooms that stay hot after sunset, ducts that feel warm to the touch, or summer electric bills exceeding $300 on a 2,000-square-foot home suggest excessive radiant heat gain.
What it costs in Cibolo
Attic radiant barrier installation in Cibolo typically costs $1,800-$3,500 for a standard production home, with complex rooflines or steep pitches adding labor.
How we do it
We staple perforated radiant barrier foil across attic truss bottoms or lay it over existing insulation, maintaining ventilation paths and avoiding compression that would reduce its reflective performance.
Radiant Barrier Roof Deck
Signs you need it
New roof installation planned, or existing attic radiant barrier insufficient because roof decking itself radiates heat downward through the assembly.
What it costs in Cibolo
Radiant barrier roof deck application in Cibolo, typically done during re-roofing, runs $2,200-$4,500 depending on roof square footage and decking accessibility.
How we do it
We apply radiant barrier sheathing or foil-faced decking during roof replacement, or spray low-emissivity coating to existing deck underside when re-roofing is not scheduled.
What Radiant Barrier Installation Costs in Cibolo
| Item | Typical range in Cibolo |
|---|---|
| Attic floor radiant barrier (foil) | $1,800-$3,500 |
| Radiant barrier roof deck (during re-roof) | $2,200-$4,500 |
| Radiant barrier with attic air sealing package | $3,500-$6,500 |
Does radiant barrier work with Cibolo’s humidity?
Yes - perforated radiant barrier foil allows moisture vapor to pass, preventing condensation in Cibolo’s humid attic conditions. We specify perforation rating and document installation with photos.
Can radiant barrier go over my existing insulation?
It can, but we inspect first - compressed or moisture-damaged insulation should be addressed before adding any layer. Our written scope states exactly what we found and what we’ll do. Call (830) 549-6646 for a free inspection.
Insulation Removal & Replacement in Cibolo
Cibolo’s rapid growth means many homes have insulation that was installed to pre-2009 IECC standards, and some early-2000s builds show evidence of rodent activity, moisture staining, or settled fiberglass that no longer performs. Insulation removal and replacement is not a default recommendation - we test and inspect first - but when removal is necessary, we contain, remove, and document every step. Insulation removal and replacement in Cibolo addresses contaminated, compressed, or thermally obsolete material.
Contaminated Insulation Removal
Signs you need it
Visible rodent droppings, urine staining, mold growth on insulation surface, or persistent odors after pest control treatment indicate contaminated material that should be removed.
What it costs in Cibolo
Contaminated insulation removal in Cibolo typically runs $2,500-$5,000 for a standard attic, with HEPA containment and disposal adding to base labor.
How we do it
We establish negative air pressure with HEPA filtration, bag removed material in the attic space, and provide photo documentation of the cleaned deck before any new insulation is considered.
Insulation Replacement
Signs you need it
Insulation settled below joist tops, R-value degraded by moisture or age, or removal of old material revealing unsealed top plates and penetrations that must be addressed first.
What it costs in Cibolo
Insulation replacement in Cibolo, including air sealing and new blown or batt material, typically costs $3,500-$7,500 depending on attic square footage and target R-value.
How we do it
We air seal the attic floor completely - top plates, wire penetrations, duct boots, can lights - then install new insulation to the specified depth with marked coverage verification.
What Insulation Removal & Replacement Costs in Cibolo
| Item | Typical range in Cibolo |
|---|---|
| Contaminated insulation removal only | $2,500-$5,000 |
| Removal with air sealing (no new insulation) | $3,000-$5,500 |
| Full removal, seal, and replacement | $3,500-$7,500 |
Do I need to leave during insulation removal?
Not typically - our HEPA containment keeps living spaces isolated, and we schedule the noisiest work during hours you specify. We provide a written safety plan with your scope.
How do I know if my Cibolo home needs removal or just addition?
We inspect for contamination, compression, and thermal bypasses; if the existing material is clean and structurally intact, we often recommend air sealing and topping rather than full removal. Call (830) 549-6646 for an honest assessment - free, with a written price if work is needed.
Attic Air Sealing in Cibolo
Cibolo’s production homes were built quickly, and the attic floor - the primary air barrier between conditioned space and vented attic - was rarely sealed properly. Top plates, electrical penetrations, and duct boot connections leak conditioned air continuously, and in summer that leakage is replaced by 140°F attic air drawn downward. Attic air sealing is the foundational step we perform before any insulation upgrade, and we verify results with blower-door testing.
Top Plate & Penetration Sealing
Signs you need it
Dust streaks around ceiling fixtures, temperature differences between rooms sharing a wall top plate, or blower-door readings above 3,500 CFM50 on a 2,000-square-foot home indicate top plate leakage.
What it costs in Cibolo
Top plate and penetration sealing in Cibolo typically costs $1,500-$3,500 for a standard production home, with complex rooflines or multiple HVAC zones adding labor.
How we do it
We access top plates by moving insulation aside, apply two-part polyurethane foam or acoustic sealant to all joints and penetrations, and replace insulation without compression.
Can Light & Duct Boot Sealing
Signs you need it
Can lights that leak attic air into living space, or rooms that never reach set temperature despite adequate insulation depth, point to failed boot and fixture sealing.
What it costs in Cibolo
Can light and duct boot sealing in Cibolo runs $800-$2,200 depending on fixture count and whether boots require reconstruction or replacement.
How we do it
We seal duct boots with mastic and mechanical fasteners, replace non-IC-rated can lights with sealed housings where code requires, and verify with blower-door differential testing.
What Attic Air Sealing Costs in Cibolo
| Item | Typical range in Cibolo |
|---|---|
| Basic attic air sealing (top plates, penetrations) | $1,500-$3,500 |
| Can light and duct boot sealing | $800-$2,200 |
| Comprehensive attic air sealing with blower-door test | $2,500-$5,000 |
Will air sealing alone lower my Cibolo electric bill?
It often does - reducing infiltration by 30-50% means your HVAC runs less to maintain setpoint, and in Cibolo’s climate that translates to measurable summer savings. We document pre- and post-sealing blower-door numbers so you can see the exact change.
Do you seal before or after adding insulation?
Always before - we never blow insulation over an unsealed attic floor. Sealed first, insulated second, verified with a blower-door test. That’s Haven Standard, and it’s non-negotiable. Call (830) 549-6646 to schedule.
Wall Insulation in Cibolo
Cibolo’s production homes built in the 2000s and early 2010s were framed with 2×4 studs and filled with minimum-code batt insulation, often poorly installed with gaps and compression around wiring and plumbing. These walls perform even worse than their labeled R-value suggests, and Winter Storm Uri proved how quickly thin walls lose heat when temperatures drop below freezing. Wall insulation upgrades in Cibolo typically involve dense-pack methods that don’t require interior demolition.
Injection Foam Wall Insulation
Signs you need it
Walls that feel hot to the touch in summer, cold in winter, or rooms with exterior walls that never maintain temperature despite adequate attic insulation suggest empty or settled wall cavities.
What it costs in Cibolo
Injection foam wall insulation in Cibolo typically costs $3,500-$7,500 for a standard production home, with two-story homes or complex floor plans at the higher end.
How we do it
We drill 5/8-inch holes through exterior siding or interior drywall at stud spacing, inject slow-rise foam to fill cavities completely, and patch with matching materials.
Drill & Fill Wall Insulation
Signs you need it
Knob-and-tube wiring replacement completed with empty cavities, or additions built with uninsulated walls that now connect to conditioned space.
What it costs in Cibolo
Drill and fill with cellulose or fiberglass in Cibolo runs $2,800-$5,500 depending on wall square footage and access conditions.
How we do it
We drill access holes, verify cavity conditions with a borescope, dense-pack cellulose from GreenFiber or fiberglass to 3.5 pounds per cubic foot, and seal penetrations.
What Wall Insulation Costs in Cibolo
| Item | Typical range in Cibolo |
|---|---|
| Drill & fill (cellulose or fiberglass) | $2,800-$5,500 |
| Injection foam (slow-rise polyurethane) | $3,500-$7,500 |
| Exterior wall insulation with air sealing | $4,500-$9,000 |
Can you insulate walls without tearing out drywall?
Yes - injection foam and dense-pack cellulose both fill cavities through small drilled holes that we patch afterward. Interior disruption is minimal, typically completed in one day.
Will wall insulation help with Cibolo’s summer heat?
It reduces conductive heat gain through exterior walls, which matters when attic temperatures hit 140°F and the temperature difference across your walls increases. We calculate the whole-wall R-value improvement and include it in your written scope. Call (830) 549-6646 for a free assessment.
Attic Cleaning & Rodent Proofing in Cibolo
Cibolo’s rapid development displaced wildlife habitat, and roof rats and squirrels have adapted to suburban neighborhoods with mature trees and accessible rooflines. Attics in production homes often have unsealed vent screens, construction gaps at fascia boards, and plumbing penetrations that rodents exploit. Attic cleaning and rodent proofing addresses contamination, entry points, and the insulation damage that follows.
Rodent Proofing & Exclusion
Signs you need it
Scratching sounds at dawn or dusk, droppings in the attic, chewed wires, or daylight visible through gaps at eaves and soffits indicate active rodent entry.
What it costs in Cibolo
Rodent proofing and exclusion in Cibolo typically costs $1,800-$4,500 depending on entry point count, roof height, and whether one-way doors are needed for eviction.
How we do it
We inspect every roof penetration, vent, and fascia joint, seal with rodent-proof materials - steel mesh, concrete, or metal flashing - and install one-way doors where active entry is confirmed.
Attic Sanitizing & Decontamination
Signs you need it
Visible droppings, urine staining on insulation or decking, or HVAC return air drawing from a contaminated attic space require sanitizing before any new work proceeds.
What it costs in Cibolo
Attic sanitizing and decontamination in Cibolo runs $2,000-$4,500 for a standard attic, with heavy contamination or large attic footprints at the higher end.
How we do it
We remove contaminated insulation where necessary, apply enzyme-based sanitizer to affected surfaces, and provide photo documentation of the cleaned space before any restoration.
What Attic Cleaning & Rodent Proofing Costs in Cibolo
| Item | Typical range in Cibolo |
|---|---|
| Rodent proofing & exclusion | $1,800-$4,500 |
| Attic sanitizing & decontamination | $2,000-$4,500 |
| Full attic cleanout with restoration | $3,500-$8,000 |
Do you handle the rodents or just seal after pest control?
We partner with licensed pest control for active infestation, then perform exclusion and restoration - we don’t trap or bait, but we seal every entry point pest control identifies and many they miss.
How do I know if my attic has rodent damage?
We inspect for droppings, compressed runways in insulation, chewed ductwork, and entry gaps - documented with photos you receive whether or not you hire us. Call (830) 549-6646 for a free inspection with written findings.
Home Energy Audit in Cibolo
Cibolo homeowners who suspect their production home underperforms but don’t know where to start need diagnostic data, not guesswork. A home energy audit measures actual building envelope leakage, duct leakage, insulation effectiveness, and thermal bridging with calibrated equipment. Home energy audit results in Cibolo typically reveal that air sealing and duct sealing deliver more comfort per dollar than insulation alone.
Blower Door Test
Signs you need it
Drafts you can’t locate, rooms that are consistently uncomfortable, or utility bills that seem high for your home’s size and age suggest excessive building envelope leakage.
What it costs in Cibolo
A standalone blower-door test in Cibolo typically costs $350-$650, with comprehensive audit packages that include thermal imaging and duct testing at higher bundled rates.
How we do it
We install a calibrated fan in an exterior door, depressurize the house to 50 Pascals, and measure CFM50 - the cubic feet per minute of air leakage at standard pressure - to quantify total envelope leakage.
Thermal Imaging Inspection
Signs you need it
Uneven temperatures across walls or ceilings, suspected missing insulation in vaulted ceilings, or moisture intrusion patterns that aren’t visible to the eye.
What it costs in Cibolo
Thermal imaging inspection in Cibolo, typically bundled with blower-door testing, adds $200-$400 to the base audit cost.
How we do it
We scan interior and exterior surfaces with an infrared camera during controlled temperature differential conditions, identifying insulation voids, air leakage paths, and moisture anomalies.
What Home Energy Audit Costs in Cibolo
| Item | Typical range in Cibolo |
|---|---|
| Blower-door test only | $350-$650 |
| Blower-door with thermal imaging | $550-$950 |
| Comprehensive audit (all diagnostics) | $800-$1,500 |
Will an audit tell me what to fix first in Cibolo?
Yes - we prioritize improvements by cost-effectiveness and your specific complaints, and every audit report includes a written scope with prices for each recommended measure. No work starts without your written approval.
How long does a home energy audit take?
Most comprehensive audits take 3-4 hours including setup, testing, and a walkthrough of preliminary findings. You receive the full report with blower-door numbers, thermal images, and written scopes within 48 hours. Call (830) 549-6646 to schedule.
Brands We Service in Cibolo
We source insulation and air-sealing materials from Owens Corning, Johns Manville, Demilec, and GreenFiber, with no proprietary product lock-in - we specify what performs for your specific assembly. Most materials are stocked regionally for next-day availability on approved scopes. Our brands page details specifications and warranty terms.
Pricing for Insulation in Cibolo, TX
| Service | Typical range in Cibolo |
|---|---|
| Attic air sealing (basic) | $1,500-$3,500 |
| Attic air sealing (comprehensive) | $2,500-$5,000 |
| Blown-in insulation (add over existing) | $2,000-$4,500 |
| Attic insulation removal (contaminated) | $2,500-$5,000 |
| Insulation replacement (remove, seal, replace) | $3,500-$7,500 |
| Radiant barrier installation | $1,800-$3,500 |
| Radiant barrier roof deck | $2,200-$4,500 |
| Wall insulation (drill & fill) | $2,800-$5,500 |
| Wall insulation (injection foam) | $3,500-$7,500 |
| Crawl space encapsulation | $4,500-$8,500 |
| Rodent proofing & exclusion | $1,800-$4,500 |
| Home energy audit (comprehensive) | $800-$1,500 |
Prices in Cibolo push higher when attic access is limited, roof pitch exceeds 8:12, or existing insulation requires removal before new work can begin. Every job still begins with a written price before any work starts - Haven Standard Clause 1 - and we provide a free second opinion on any competing written estimate.
Neighborhoods We Serve in Cibolo
We work throughout Cibolo’s developed areas, with crews typically arriving within scheduled windows coordinated from our San Antonio office. Representative neighborhoods include:
- Saddle Creek
- Cibolo Canyons-adjacent subdivisions
- Steele High School corridor
- FM 1103 corridor developments
- FM 78 corridor communities
Service Area - Cities Near Cibolo
Our crews serve the full San Antonio metro corridor, including Schertz, TX immediately to the south, Universal City, TX to the southwest, Converse, TX to the west, and New Braunfels, TX to the northeast. Scheduling and dispatch are coordinated from our San Antonio office, with local crews assigned to minimize travel time to your job.
Serving Cibolo, TX - Our Local Coverage Area
We’re based in the Cibolo 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 Cibolo
We typically schedule inspections within 2-3 business days, with emergency situations addressed same day when capacity allows. A live person answers calls 24/7, and you’ll receive a text when your technician is en route with a named arrival window.
Most Cibolo HOAs require notice for exterior work like wall insulation or roof deck radiant barrier; we provide the documentation you need. Permits are generally not required for attic work but may be needed for spray foam in conditioned attics or crawl space modifications - we handle permit research and submission as part of your written scope.
Cibolo’s production homes were built to minimum Texas code with builder-grade materials, and the gap between code-minimum and performance-grade installation is significant. We’ve tested 2018-built homes in Cibolo that leaked more air than 1990s homes we’ve sealed in other markets - age alone doesn’t determine envelope quality.
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 Cibolo 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.