Insulation in Round Rock, TX
Most crawl space encapsulation and vapor barrier jobs in Round Rock run $3,500-$7,500 for a full encapsulation with dehumidifier, while vapor barrier-only installations typically fall between $1,200 and $2,800. We’re Envelope Insulation Co., and we treat air sealing as a hard prerequisite before any insulation goes in - not an upsell. In Round Rock’s Dell-era subdivisions, where slab-on-grade tract homes from the 1990s and 2000s were built to pre-2001 energy code minimums, we regularly find crawl spaces with no vapor barrier at all and rim joists leaking conditioned air directly to the outside. Call (737) 245-6428 for a written price before any work starts.
Why Round Rock Homes Are Different
Round Rock sits at the edge of the Blackland Prairie just below the Balcones Escarpment, which means it endures both 100°F-plus summers where unconditioned attics exceed 150°F and severe winter freezes that drop temperatures 40°F in hours. This extreme thermal range stress-tests building envelopes in ways mild-winter coastal Texas markets never experience.
The city’s identity-defining Dell-era boom produced an unusually dense, age-uniform cohort of builder-grade tract homes - now simultaneously hitting the 20-30 year mark - that were originally insulated to the bare minimums of pre-2001 Texas energy codes. In subdivisions like Forest Creek, Teravista, and Mayfield Ranch, it’s common to find HVAC systems and ductwork routed through vented, unconditioned attics. The February 2021 Winter Storm Uri exposed how badly those attic spaces left pipes and envelopes vulnerable, creating a city-wide retrofit wave that is still playing out at a scale and uniformity you won’t find in older, more organically-developed neighboring cities. Very little pre-1980s housing exists here, so vermiculite concerns are rare, but settling and compression of original builder insulation across this large simultaneous-age cohort is extremely common.
Our Main Round Rock Services
Round Rock homeowners call us most often about attic work and spray foam - here is what those jobs involve locally.
Attic Insulation in Round Rock
In Round Rock’s Dell-era subdivisions, we typically find R-30 blown fiberglass that has settled to R-19 or lower, with air handlers and ductwork baking in 155°F attic air every July afternoon. We never add insulation before sealing top plates, can lights, and duct boots - our blower-door test gives you a before-and-after number you can read. Attic Insulation in Round Rock covers full attic retrofit, air sealing, and encapsulation options for homes in Teravista, Forest Creek, and across the city.
Spray Foam Insulation in Round Rock
Closed-cell spray foam is the single highest-ROI upgrade for Round Rock homes with HVAC equipment in vented attics - it converts the entire plane to conditioned space, dropping attic temperatures from 155°F to within 10°F of the living area. We source materials from Owens Corning, Johns Manville, and Demilec, with no proprietary lock-in. Spray Foam Insulation in Round Rock details open-cell and closed-cell applications for walls, attics, and rim joists.
Blown-In Insulation in Round Rock
Blown-in fiberglass or cellulose is the most common retrofit for settled original insulation in Round Rock’s 1990s-2010s housing stock. We use GreenFiber cellulose and Owens Corning fiberglass, installed only after air sealing is complete - blowing insulation over an unsealed attic floor traps air leaks under the new layer forever. Blown-In Insulation in Round Rock covers top-offs, full replacements, and dense-pack wall applications.
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 Round Rock
Round Rock’s slab-on-grade dominance means true crawl spaces are less common than in pier-and-beam areas, but where they exist - particularly in older sections near downtown and in some multi-story builds - they were typically built with no vapor barrier and minimal rim joist sealing. The Blackland Prairie’s clay soils hold moisture against foundation walls, and the same freeze-thaw cycling that stresses attics degrades crawl space conditions year-round. Crawl Space Encapsulation & Vapor Barrier is our primary service for homeowners dealing with musty floors, cold spots above crawl areas, or post-Uri moisture issues.
Crawl Space Vapor Barrier
Signs you need it
Your first floor feels cold and damp in winter, or you notice efflorescence - white mineral deposits - on interior foundation walls.
What it costs in Round Rock
A 6-mil or thicker polyethylene vapor barrier installed over bare earth typically runs $1,200-$2,800 depending on crawl space square footage and pier spacing.
How we do it
We remove debris, grade the earth for drainage, seam-seal 6-mil+ polyethylene sheeting at all overlaps, and mechanically fasten at perimeter walls and piers.
Crawl Space Encapsulation
Signs you need it
You smell mustiness year-round, see mold on floor joists, or your hardwood floors are cupping from below.
What it costs in Round Rock
Full encapsulation with closed-cell spray foam on rim joists, vapor barrier on walls and floor, and a dedicated dehumidifier typically runs $3,500-$7,500.
How we do it
We seal all vents, apply closed-cell foam to rim joists, install reinforced vapor barrier on floors and walls, add a condensate-pumped dehumidifier, and provide before-and-after humidity readings.
What Crawl Space Encapsulation & Vapor Barrier Costs in Round Rock
| Item | Typical range in Round Rock |
|---|---|
| Vapor barrier (6-mil+, earth only) | $1,200 - $2,800 |
| Full encapsulation with dehumidifier | $3,500 - $7,500 |
| Rim joist spray foam (closed-cell, add-on) | $800 - $1,800 |
How long does crawl space encapsulation take in Round Rock?
Most vapor barrier jobs finish in one day; full encapsulation with dehumidifier typically takes two to three days. We coordinate with Austin dispatch for material staging and schedule around your availability, not a callback window.
Will encapsulation help with winter pipe protection?
Yes - sealing vents and adding conditioned-air circulation through the crawl space buffers against the 40°F drops that hit Round Rock during blue norther events. Call (737) 245-6428 for a written price and scope - estimates are free.
Radiant Barrier Installation in Round Rock
In Round Rock’s Dell-era subdivisions, original construction rarely included radiant barrier - those homes relied on R-30 attic insulation alone to buffer 155°F attic air against 72°F living space. With HVAC equipment and ductwork fully exposed in that attic, the cooling system works inside an oven every summer afternoon. Radiant Barrier Installation blocks radiant heat transfer from roof deck to attic floor, dropping attic temperatures 20-30°F and reducing the thermal load on ducts and air handlers.
Attic Radiant Barrier
Signs you need it
Your upstairs rooms run 8-12°F warmer than downstairs, or your AC cycles constantly after 2 p.m. despite adequate blown insulation depth.
What it costs in Round Rock
Radiant barrier foil stapled to attic rafters or laid over existing insulation typically runs $1,500-$3,200 for a 2,000-square-foot home.
How we do it
We install perforated radiant barrier foil with proper drape and air gaps, ensuring no contact with electrical fixtures and maintaining attic ventilation paths per Texas energy code.
Radiant Barrier Roof Deck
Signs you need it
You’re replacing your roof and want the most effective radiant barrier configuration, or your current shingles are failing prematurely from excessive attic heat.
What it costs in Round Rock
Radiant barrier roof deck application during re-roofing, or retrofit spray-applied radiant barrier coating, typically runs $2,800-$5,500 depending on roof complexity.
How we do it
We apply low-emissivity coating or foil-faced sheathing directly to roof deck underside, creating a radiant barrier at the heat source rather than intercepting it mid-attic.
What Radiant Barrier Installation Costs in Round Rock
| Item | Typical range in Round Rock |
|---|---|
| Attic radiant barrier foil (stapled or laid) | $1,500 - $3,200 |
| Radiant barrier roof deck application | $2,800 - $5,500 |
| Radiant barrier with attic air sealing package | $2,200 - $4,800 |
Does radiant barrier work with spray foam attics?
No - once an attic is fully encapsulated with spray foam, the roof deck itself becomes conditioned space and radiant barrier serves no purpose; we recommend one approach or the other, not both. Call (737) 245-6428 and we’ll show you the blower-door numbers for each option.
How much will radiant barrier drop my attic temperature?
Properly installed radiant barrier typically reduces peak attic temperatures 20-30°F in Round Rock’s summer conditions, with the greatest benefit on homes with dark shingles and minimal existing shade.
Insulation Removal & Replacement in Round Rock
Round Rock’s uniform housing stock means we’re not dealing with vermiculite or pre-1980s materials - we’re removing compressed, settled fiberglass that no longer performs at its labeled R-value, or fiberglass contaminated by rodent activity in attics that hit 155°F. Insulation Removal & Replacement starts with a written scope documenting what comes out, what condition it’s in, and what goes back - with photo records at every stage.
Attic Insulation Removal
Signs you need it
Your attic insulation has compressed below the joist tops, or you can see the ceiling drywall between batts where full coverage once existed.
What it costs in Round Rock
Removal and disposal of existing attic insulation from a 2,000-square-foot home typically runs $1,000-$2,200, with HEPA-contained vacuum extraction for fine particles.
How we do it
We set up negative-air containment, remove insulation with HEPA-filtered vacuum systems, bag on-site, and provide photos of the clean deck before any new material goes in.
Insulation Replacement
Signs you need it
Your home never reached the comfort level promised by a previous insulation contractor, or you’re finishing a removal and need new material selected to actual performance specs.
What it costs in Round Rock
Full replacement with blown fiberglass or cellulose to current code-minimum R-38 typically runs $1,800-$3,500 for a standard attic, after removal.
How we do it
We air seal first - top plates, penetrations, can lights, duct boots - then install new insulation to uniform depth with depth markers and photo documentation.
What Insulation Removal & Replacement Costs in Round Rock
| Item | Typical range in Round Rock |
|---|---|
| Attic insulation removal (disposal included) | $1,000 - $2,200 |
| Insulation replacement (blown, R-38) | $1,800 - $3,500 |
| Removal + replacement package | $2,800 - $5,500 |
Can you remove insulation without tearing up my ceiling?
Yes - attic insulation removal is performed entirely from above, through the attic access hatch, with no interior drywall disturbance; we protect your living space with sealed access and drop cloths. Call (737) 245-6428 for a written scope and price.
How do I know if my insulation needs removal or just a top-off?
We measure settled depth against labeled R-value and inspect for contamination; if compression exceeds 30% or rodent evidence exists, removal is the only option that doesn’t bury the problem.
Attic Air Sealing in Round Rock
Round Rock’s Dell-era homes were built with top plates, wire penetrations, and can lights that leak conditioned air directly to vented attic space - the builder blew R-30 fiberglass over these gaps and called it done. Every summer, that 155°F attic air pulls cooled air upward through stack effect; every winter, heated air escapes the same path. Attic Air Sealing is the hard prerequisite we complete before any insulation goes in - we publish blower-door numbers so you see the CFM50 reduction in writing.
Top Plate & Penetration Sealing
Signs you need it
You feel drafts at exterior wall outlets in winter, or your blower-door test shows excessive air leakage despite adequate insulation depth.
What it costs in Round Rock
Sealing top plates, wire and pipe penetrations, and plumbing stacks in a typical Dell-era tract home runs $800-$1,800.
How we do it
We locate leaks with blower-door-directed infrared, seal top plates with acoustical sealant and rigid foam, and foam-seal all penetrations with fire-rated materials where required.
Can Light & Duct Boot Sealing
Signs you need it
Your can lights flicker when the attic gets hot, or you feel conditioned air blowing from duct seams in the attic during system operation.
What it costs in Round Rock
Sealing accessible can lights with fire-rated covers and mastic-sealing duct boots typically adds $400-$900 to a top-plate sealing job.
How we do it
We install pre-formed fire-rated enclosures over IC and non-IC can lights, mastic-seal all duct boots to ceiling drywall, and pressure-test ductwork where accessible.
What Attic Air Sealing Costs in Round Rock
| Item | Typical range in Round Rock |
|---|---|
| Top plate & penetration sealing | $800 - $1,800 |
| Can light & duct boot sealing | $400 - $900 |
| Full attic air sealing (comprehensive) | $1,500 - $3,200 |
Will air sealing alone lower my electric bill?
Yes - in Round Rock’s extreme summer attic conditions, reducing air leakage 30-50% typically cuts cooling load measurably; we document the before-and-after with blower-door readings you keep. Call (737) 245-6428 for a written price.
Do I need air sealing if I’m already adding insulation?
We will not blow insulation over an unsealed attic floor - it traps air leaks under the new layer, permanently reducing the effective R-value and creating moisture risk; sealing first is non-negotiable under our Haven Standard.
Wall Insulation in Round Rock
Round Rock’s 1990s-2010s tract homes were built with 2×4 walls and minimal cavity insulation - often R-13 fiberglass batts with gaps at electrical boxes and studs. The same thermal extremes that stress attics transfer through walls, particularly on west and south exposures that bake all afternoon. Wall Insulation retrofits are most common in homes where owners have already addressed attic deficiencies and still find comfort gaps.
Injection Foam Wall Insulation
Signs you need it
Your exterior walls feel hot to the touch in summer, or rooms with large west-facing windows never cool adequately despite upgraded attic insulation.
What it costs in Round Rock
Injection foam for a 2,000-square-foot home’s exterior walls typically runs $3,500-$6,500, with minimal interior disruption through plug-and-fill access holes.
How we do it
We drill 5/8-inch holes at stud bay intervals, inject slow-rise foam to fill cavities without bowing drywall, patch and texture-match, and provide thermal images showing coverage completeness.
Drill & Fill Wall Insulation
Signs you need it
Your walls have no insulation at all - common in garage-adjacent rooms and additions - or original batts have fallen and settled at the bottom of cavities.
What it costs in Round Rock
Drill-and-fill with dense-pack cellulose for empty or poorly insulated walls runs $2,800-$5,200 for a typical home’s exterior envelope.
How we do it
We verify cavity conditions with borescope inspection, drill access holes at top and bottom of each bay, dense-pack GreenFiber cellulose to 3.5 pounds per cubic foot, and seal all penetrations.
What Wall Insulation Costs in Round Rock
| Item | Typical range in Round Rock |
|---|---|
| Injection foam (exterior walls) | $3,500 - $6,500 |
| Drill & fill with dense-pack cellulose | $2,800 - $5,200 |
| Interior wall soundproofing (per room) | $1,200 - $2,800 |
Will injection foam damage my drywall?
No - slow-rise formulations and controlled injection pressure prevent bowing; we patch 5/8-inch access holes with textured match, and the repair is included in our written scope. Call (737) 245-6428 for a written price.
Can you insulate walls without removing drywall?
Yes - all our wall insulation methods are retrofit techniques that access cavities through small exterior or interior holes, with no drywall removal required in standard construction.
Attic Cleaning & Rodent Proofing in Round Rock
Round Rock’s 155°F attics create conditions where rodents seek stable temperatures, and the uniform age of Dell-era housing means similar entry vulnerabilities across entire subdivisions - we’ve found the same construction-gap patterns in Forest Creek, Teravista, and Mayfield Ranch. Attic Cleaning & Rodent Proofing addresses contamination before new insulation goes in, because blowing material over rodent-affected substrate traps pathogens and odor.
Attic Sanitizing & Decontamination
Signs you need it
You smell ammonia or musk when the HVAC runs, or you’ve found droppings in the attic during a routine inspection.
What it costs in Round Rock
HEPA vacuum removal of contaminated insulation, enzyme treatment of substrates, and sanitizing typically runs $1,500-$3,200 for a standard attic.
How we do it
We remove contaminated material with HEPA containment, apply enzymatic cleaner to break down organic residue, treat for parasites, and provide photo documentation of substrate condition before any new installation.
Rodent Proofing & Exclusion
Signs you need it
You hear scratching in walls or attic at dawn and dusk, or you’ve trapped rodents repeatedly without stopping the entry pattern.
What it costs in Round Rock
Comprehensive rodent proofing with metal exclusion at all entry points, plus one-way exits where active infestation exists, typically runs $800-$2,200.
How we do it
We inspect with infrared and visual methods to find all entry paths, seal with galvanized steel and concrete where rodents chew, install one-way exits for active populations, and provide written warranty on exclusion work.
What Attic Cleaning & Rodent Proofing Costs in Round Rock
| Item | Typical range in Round Rock |
|---|---|
| Attic sanitizing & decontamination | $1,500 - $3,200 |
| Rodent proofing & exclusion | $800 - $2,200 |
| Full attic restoration (cleaning + proofing + re-insulation) | $3,500 - $7,500 |
Do I need to remove all insulation if rodents were in my attic?
Not always - localized contamination can be spot-removed, but widespread saturation requires full removal; we inspect with borescope and UV light to show you exactly what we’re seeing before you decide. Call (737) 245-6428 for a written assessment.
How do you keep rodents from coming back?
We seal every entry larger than 1/4 inch with rodent-proof materials - standard caulk and foam fail within months - and warranty the exclusion; ongoing monitoring is the homeowner’s responsibility, but we show you what to watch.
Home Energy Audit in Round Rock
A home energy audit in Round Rock pinpoints exactly where your Dell-era tract home is losing conditioned air - and whether the problem is insulation, duct leakage, or both. With HVAC equipment routinely located in 155°F attic space, the audit separates thermal envelope issues from mechanical distribution losses that many contractors conflate. Home Energy Audit provides written findings with prioritized recommendations and cost estimates, not a generic scorecard.
Blower Door Test
Signs you need it
Your utility bills are 30% or more above neighbors with similar homes, or you’ve completed insulation upgrades without seeing expected comfort improvement.
What it costs in Round Rock
A standalone blower-door test with written CFM50 results and leakage-location mapping typically runs $300-$500; packaged with full audit, $450-$750.
How we do it
We depressurize the home to 50 Pascals with a calibrated fan, measure CFM50 - the cubic feet per minute of air leakage at standard pressure - then use smoke pencils and infrared to locate dominant leak paths.
Thermal Imaging Inspection
Signs you need it
You have persistent cold spots or hot rooms with no obvious duct issue, or you want to verify insulation coverage before and after a retrofit.
What it costs in Round Rock
Thermal imaging as part of a comprehensive audit runs $450-$750; standalone wall and ceiling scan without blower door is $250-$400.
How we do it
We scan all envelope surfaces with FLIR cameras under controlled temperature differential, documenting insulation voids, thermal bridging at studs, and air leakage patterns with geotagged images.
What Home Energy Audit Costs in Round Rock
| Item | Typical range in Round Rock |
|---|---|
| Blower door test (standalone) | $300 - $500 |
| Full home energy audit with thermal imaging | $450 - $750 |
| Duct leakage test (add-on) | $200 - $350 |
Will an energy audit tell me what to fix first?
Yes - our written findings rank recommendations by cost-effectiveness and comfort impact, so you can phase work by budget rather than guessing; we never pressure for immediate full-scope acceptance. Call (737) 245-6428 to schedule.
How long does a home energy audit take?
Plan on two to three hours for a full audit with blower door and thermal imaging; we need the home at least 15°F different from outside for accurate infrared, so scheduling varies seasonally in Round Rock.
Brands We Service in Round Rock
We source insulation materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary product lock-in means we specify what performs for your home’s conditions, not what moves our inventory. Our Austin office stocks common batt and blown products for next-day availability on most Round Rock jobs. See our brands for full specifications and warranty terms.
Pricing for Insulation in Round Rock, TX
| Service | Typical range in Round Rock |
|---|---|
| Crawl space vapor barrier | $1,200 - $2,800 |
| Crawl space encapsulation with dehumidifier | $3,500 - $7,500 |
| Attic radiant barrier foil | $1,500 - $3,200 |
| Radiant barrier roof deck application | $2,800 - $5,500 |
| Attic insulation removal | $1,000 - $2,200 |
| Insulation replacement (blown, R-38) | $1,800 - $3,500 |
| Top plate & penetration air sealing | $800 - $1,800 |
| Full attic air sealing | $1,500 - $3,200 |
| Injection foam wall insulation | $3,500 - $6,500 |
| Drill & fill wall insulation | $2,800 - $5,200 |
| Attic sanitizing & decontamination | $1,500 - $3,200 |
| Full home energy audit | $450 - $750 |
Prices push higher in Round Rock when we encounter multiple layers of old insulation requiring removal, restricted attic access in two-story homes, or active rodent infestation requiring full decontamination before new work begins. Every job begins with a written price - no work starts without it - under Haven Standard Clause 1.
Neighborhoods We Serve in Round Rock
We work across Round Rock’s full footprint, from the original downtown grid to the newest Dell-era subdivisions. Crews dispatch from our Austin office and typically arrive within scheduled windows for all Round Rock addresses.
- Forest Creek
- Teravista
- Mayfield Ranch
- Sommer
- Brushy Creek
Service Area - Cities Near Round Rock
Our crews serve the full Austin metro corridor, with Round Rock as a core dispatch point. We regularly work in Pflugerville, TX to the south, Hutto, TX to the east, Georgetown, TX to the north, and Cedar Park, TX to the west - all within the same scheduling and response framework we maintain for Round Rock homeowners.
Serving Round Rock, TX - Our Local Coverage Area
We’re based in the Round Rock 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 Round Rock
Attic insulation retrofits typically don’t require permits in Round Rock, but spray foam encapsulation and any electrical or HVAC modifications do; we handle permit research and submission as part of our written scope when applicable, so you don’t have to navigate city offices yourself.
Our Austin dispatch coordinates same-week appointments for most Round Rock addresses, with emergency calls for post-storm damage or active leaks prioritized; a live person answers 24/7, and you’ll get a text when your technician is en route with a name and photo.
Most Round Rock HOAs in Dell-era subdivisions don’t regulate interior attic work, but some Teravista and Mayfield Ranch covenants require notification for roof-deck modifications; we review your specific HOA documents during our initial scope and include any required submissions in our written plan.
Call (737) 245-6428 for a free estimate with a written price before any work starts. Our 365-Day Done Right Promise applies to every job, and you’ll receive a Documented Photo Record and before-and-after blower-door numbers on every applicable project.
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 Round Rock 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.