Trusted Insulation Removal & Replacement for San Marcos Homeowners
Our Insulation Removal & Replacement cost guide shows San Marcos jobs typically run $2,800-$7,500 for a full attic, depending on square footage, contamination level, and whether hazardous materials like vermiculite are present. Most jobs take one to three days, and we can often start within 48 hours of your written estimate. Call (737) 337-8049 for a free, written price before any work begins.
We’ve been sealing and insulating homes under The Haven Standard since 2016, completing over 9,000 jobs with documented photo records and before-and-after blower-door numbers on every applicable project. San Marcos presents specific challenges: the combination of hot, humid summers and sudden temperature swings between the Hill Country and I-35 corridor stress attic systems differently than homes in Austin or Kyle. We’ve pulled saturated fiberglass from attics near the San Marcos River where humidity trapped against the roof deck created mold, and we’ve removed rodent-contaminated batts from older homes in the historic district where 1950s vermiculite still sits under newer layers. Our crews are background-checked, uniformed, and arrive with a written scope, not a verbal pitch.
What Our Insulation Removal & Replacement Service Includes
Attic Insulation Removal
Attic insulation removal is the complete extraction of existing fiberglass batts, blown-in cellulose, or spray foam from your attic floor and roof deck. In San Marcos, we most often perform this when homeowners have experienced multiple years of compression from foot traffic, pest activity, or moisture degradation that has reduced R-value below the original rating. We use commercial HEPA-filtered vacuums and negative-air machines to prevent contamination of your living space, and we seal the attic access with plastic sheeting before starting. Every removal includes a photo record of what we found, what we removed, and the condition of the deck and top plates underneath.
Contaminated Insulation Removal
Contaminated insulation removal addresses material compromised by rodent droppings, urine, mold, or water damage that poses health risks and degrades indoor air quality. San Marcos homes near greenbelts, the river corridor, or with mature oak canopies see higher rodent pressure, and we’ve pulled insulation from attics in neighborhoods like Willow Creek and Blanco Gardens where raccoons or roof rats had nested for seasons without detection. We follow Texas Department of State Health Services guidelines for biological contamination, double-bagging removed material and treating affected framing with antimicrobial before any new insulation goes in. You receive photos of the contamination, the treatment, and the cleared space.
Vermiculite & Old Insulation Removal
Vermiculite and old insulation removal handles pre-1990 material, particularly vermiculite mined from Libby, Montana, which may contain asbestos and requires specialized abatement protocols. San Marcos has pockets of mid-century construction in the Dunbar Historic District and along Hopkins Street where we’ve encountered vermiculite layered under newer fiberglass that previous owners simply covered rather than removed. We test suspect material through a certified lab before disturbing it, and if asbestos is present, we coordinate with licensed abatement contractors while managing the building envelope scope ourselves. Never disturb vermiculite yourself; the fibers become airborne with minimal agitation.
Insulation Replacement
Insulation replacement installs new material after removal, but only after we’ve completed air sealing of top plates, can lights, plumbing and electrical penetrations, and the attic access itself. In San Marcos, we see too many attics where new insulation was blown over a leaky floor, essentially filtering conditioned air through fiberglass rather than keeping it in the living space. We source replacement materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber, selecting based on your budget, performance goals, and whether we’re treating a vented or unvented assembly. Every replacement job closes with a blower-door test when applicable, showing you the CFM50 reduction in a single number.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Insulation Removal & Replacement
We’ve removed and replaced thousands of systems containing Johns Manville fiberglass batts and blown wool, particularly their Climate Pro and Spider product lines common in 2005-2015 San Marcos construction. Their batts tend to compress around ductwork and electrical junctions in ways that reduce performance, and we document these weak points during removal so the replacement addresses them specifically.
We also regularly handle Knauf EcoSeal and Jet Stream blown-in systems, which we’ve found in newer developments near the outlet malls and along Wonder World Drive. Knauf’s binder technology performs well when intact, but we’ve pulled degraded batches from attics where improper initial installation left gaps at eaves and around chases. Rockwool and CertainTeed products round out our experience, from Rockwool’s dense-pack wall cavities in retrofitted historic homes to CertainTeed’s Optima blown-in systems in suburban builds. Whether your existing insulation carries one of these names or no label at all, we assess what’s there, document its condition, and specify replacement material matched to your home’s envelope needs, not our inventory preferences.
Before
AfterSigns You Need Insulation Removal & Replacement Right Now
- Uneven temperatures room to room. If your bedroom in San Marcos stays ten degrees hotter than your hallway in July, compressed or displaced insulation is likely the culprit. We measure with thermal imaging during our initial inspection to show you exactly where the barrier has failed.
- Visible pest droppings or nesting material in the attic. Rodents compress insulation for nesting, contaminate it with urine that degrades fibers, and create open pathways for conditioned air to escape. The smell often reaches living spaces before homeowners realize the extent of infestation.
- Water stains on the attic floor or roof deck. San Marcos thunderstorms and occasional freeze-thaw cycles create roof leaks that saturate insulation, destroying R-value and promoting mold. Wet insulation must come out; drying it in place is ineffective and risks structural rot.
- Insulation older than 20 years or layered indiscriminately. We’ve opened attics in San Marcos where four different materials were stacked over decades, each trapping debris and creating uneven thermal performance. Layering without removal masks air leaks and can trap moisture between incompatible materials.
- Respiratory symptoms that worsen at home. If family members experience unexplained allergies, asthma flare-ups, or persistent congestion, degraded or contaminated insulation may be circulating particulates through your HVAC system. This is particularly common with older fiberglass that’s shedding fibers or cellulose that’s developed mold.
Our Insulation Removal & Replacement Process - Step by Step
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Written estimate with scope and price. We inspect your attic, document existing conditions with photos, and deliver a flat price in writing before any work starts. Haven Standard Clause 1: no work begins without a written scope, written price, and written warranty. You’ll know exactly what we’re removing, what we’re sealing, what we’re installing, and what you’ll pay.
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Containment and negative-air setup. We seal attic hatches, install HEPA-filtered negative-air machines, and protect your living space from dust and debris. Our vacuums exhaust outside, not into your home, and we wear respirators for material that may contain unknown contaminants.
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Systematic removal and disposal. We remove insulation by section, documenting deck condition, framing integrity, and any hidden issues like unauthorized electrical splices or active leaks. Contaminated material is double-bagged and disposed of per Texas environmental regulations; vermiculite triggers our asbestos testing protocol.
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Air sealing before any new material. This is the step most contractors skip. We seal top plates, can lights, bath fan housings, plumbing and electrical penetrations, and the attic access itself with foam, caulk, and rigid barriers. Then we run a blower-door test to measure the reduction in air leakage, expressed in CFM50, cubic feet per minute at 50 pascals of pressure.
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Replacement installation and final documentation. We install your specified insulation to the designed depth and density, verify coverage with depth markers and thermal imaging, and deliver your Documented Photo Record plus before-and-after blower-door numbers when applicable. The 365-Day Done Right Promise begins at completion.
How Much Does Insulation Removal & Replacement Cost in San Marcos?
A typical attic insulation removal and replacement in San Marcos runs $2,800-$7,500, with most homes in the $3,800-$5,200 range. Here’s how specific scenarios break down:
| Scenario | Price Range | Typical Factors |
|---|---|---|
| Standard attic removal + replacement (1,200-1,800 sq ft) | $3,200-$4,800 | Fiberglass batts, no contamination, straightforward access |
| Contaminated insulation removal + replacement | $4,500-$7,500 | HEPA protocols, antimicrobial treatment, disposal fees, possible decking repair |
| Vermiculite or asbestos-containing material | $6,500-$12,000+ | Third-party abatement, air monitoring, clearance testing |
| Deep removal with full air sealing and premium replacement | $5,500-$8,500 | Rockwool or spray foam, complex roofline, extensive top-plate sealing |
Several factors push prices higher or lower. Attic accessibility matters: a hatch in a closet versus a pull-down stair changes crew efficiency. The number of penetrations to seal, the presence of active HVAC ductwork that must be protected, and whether we’re working around stored items all affect labor hours. Material choice is significant: basic fiberglass batts cost less than dense-pack Rockwool or open-cell spray foam, though the performance difference is measurable in your blower-door result.
To avoid overpaying, get a written scope that specifies removal depth, disposal method, air-sealing details, and replacement material by brand and R-value. Vague estimates that list “insulate attic” without these specifics leave room for corner-cutting. We provide a Free Second Opinion on any written estimate from another contractor; bring us their scope and we’ll review it line by line, no obligation. Our estimates include the Documented Photo Record at no extra charge, and we never add trip fees or disposal surcharges after the written price is signed.
Insulation Removal & Replacement Near San Marcos - Our Service Area
We work throughout the I-35 corridor and Hill Country, with typical response times of same-day to 48 hours for estimates in San Marcos proper, Kyle, and Redwood. Homes in Lockhart, Buda, and Shady Hollow usually see us within two to three days. We also travel to Austin metro areas including Lost Creek, Lakeway, Lago Vista, and Hornsby Bend, plus Bastrop to the east. Travel beyond these zones is available for larger projects; call (737) 337-8049 to confirm scheduling.
Serving San Marcos, TX - Our Local Coverage Area
We’re based in the San Marcos area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Insulation Removal & Replacement in San Marcos
San Marcos Insulation Removal & Replacement is the complete extraction of existing attic or wall insulation, followed by air sealing and installation of new material to restore or improve thermal performance. In San Marcos, we most often perform this service when insulation has been compressed, contaminated, water-damaged, or improperly installed in the first place. The process includes documentation of existing conditions, safe disposal, and verification of results through blower-door testing when applicable. Call (737) 337-8049 for a written scope and price for your specific home.
Most residential jobs in San Marcos take one to three days, with simple removals completed in a single day and complex vermiculite or contaminated jobs extending to a week including testing and clearance. We schedule start dates after you approve the written estimate, and we arrive on time with a named technician who texts when en route. You’ll receive daily photo updates if the job extends beyond one day. Call (737) 337-8049 to check current scheduling.
Most San Marcos homeowners pay between $3,800 and $5,200 for standard attic removal and replacement, with contaminated or vermiculite jobs running higher than our Lockhart Insulation Removal & Replacement rates. The final price depends on attic square footage, material type, contamination level, and whether asbestos abatement is required. We deliver a flat, written price before any work starts, and we offer a Free Second Opinion on any competing written estimate. Call (737) 337-8049 to schedule your inspection and written quote.
Yes, we remove and replace all four brands regularly, along with Owens Corning, Icynene, Demilec, and GreenFiber products. We don’t push proprietary materials; we specify based on your home’s envelope needs, budget, and performance goals. Our written scope names the exact product and R-value you’ll receive, not a generic category. Call (737) 337-8049 to discuss material options for your project.
We answer calls 24/7 through a live person, not voicemail, and we prioritize situations involving active water intrusion, severe contamination affecting occupant health, or exposed hazardous material. Same-day response is often possible for San Marcos addresses, with 48-hour starts typical for standard scheduling. The 365-Day Done Right Promise applies to all completed work. Call (737) 337-8049 to describe your situation and get a realistic timeline.
All work is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right, backed by a written scope and written warranty delivered before anyone starts. Haven Standard Clause 1 requires this documentation for every job. Material warranties vary by manufacturer, from lifetime limited on some fiberglass products to specific year terms on spray foam; we include these details in your written scope. Call (737) 337-8049 to review warranty terms before scheduling.
Clear attic storage items before our arrival, ensure we have driveway or street parking for our vacuum truck, and keep pets secured during work hours. We bring our own containment materials, floor protection, and cleanup supplies. If you have vermiculite or suspect asbestos, do not disturb the attic before we test; leave the access closed and call us first. We’ll handle permitting if required by San Marcos or Hays County. Call (737) 337-8049 to confirm preparation details when you book.
Schedule Your Insulation Removal & Replacement Service in San Marcos Today
Call (737) 337-8049 to speak with a live person, 24/7. We’ll schedule your free inspection, deliver a written price before any work starts, and back every job with the 365-Day Done Right Promise. Estimates are free, second opinions on written quotes are free, and your Documented Photo Record is included on every visit. Serving San Marcos and surrounding communities since 2016.
Written by Wes Okafor, Owner at Topside Attic Insulation San Marcos, serving San Marcos, TX since 2016.