Trusted Attic Insulation for San Antonio Homeowners
Most San Antonio homes are under-insulated by 30 to 50 percent, which means your AC is working harder than it should and your electric bill is higher than it needs to be every single month from May through October. We fix that. Laurel Attic Insulation San Antonio has been insulating attics across Bexar County since 2003, and we’re the only insulation contractor in the area that puts a written price in your hand before any work starts, then backs the job with our 365-Day Done Right Promise. Chase Whitaker leads our team, and when you call (254) 279-0971, a live person answers. No voicemail. No four-hour windows. Just a straight answer and a real appointment time you can track on your phone.
Key takeaways:
- Most attic insulation jobs in San Antonio run $900 to $2,400 depending on square footage and R-value needed.
- Every job includes a written price before work begins, a written guarantee, and photo proof when we’re done.
- We answer calls live, 24/7, and offer same-day service across San Antonio, Selma, and Converse.
- Our 365-Day Done Right Promise covers workmanship for a full year. If it’s not right, we make it right.
Blown In Insulation
Blown In Insulation is loose-fill fiberglass or cellulose that gets blown into your attic floor or wall cavities using a specialized hose, filling gaps and crevices that batts and rolls leave behind. It’s the most common upgrade we do for San Antonio homes because it goes in fast, covers irregular joist spacing completely, and delivers a higher effective R-value per dollar than Attic Batt Insulation and most alternatives. When you call Laurel Attic Insulation San Antonio, we measure your existing insulation depth, calculate the R-value you currently have, and give you a written quote for bringing it up to the Department of Energy’s recommended level for our climate zone, which is R-38 to R-60 for attics in South Texas. Most blown-in jobs run $900 to $1,800 depending on attic size and how much existing material needs to be topped off.
Cellulose vs. Fiberglass Loose Fill
We install both GreenFiber cellulose and Johns Manville fiberglass loose fill, and the choice depends on your attic’s airflow pattern and any history of roof leaks. Cellulose settles to a higher R-value per inch and does a better job of blocking air movement, while fiberglass is lighter and holds up better if your attic has occasional moisture exposure. We’ll walk you through the tradeoffs and quote you both options in writing before you decide.
Knob and Tube Rewiring Prep
Older homes in Alamo Heights and Terrell Hills often still have knob and tube wiring, and blown-in insulation should never be installed directly over it. We inspect for exposed wiring before we blow a single bag, and if we find it, we’ll coordinate with a licensed electrician to address it before insulation goes in. It’s one of those details that separates a careful insulation contractor from a crew that just wants to get done.
Insulation Contractors
Insulation Contractors are the people you hire to assess, install, repair, or remove the thermal barrier in your attic, and the quality of that contractor determines whether you actually get the energy savings you’re paying for. Most San Antonio homeowners don’t realize that insulation performance depends as much on installation quality as on the material itself: gaps, compression, and missed spots can cut real-world R-value by a third or more. Laurel Attic Insulation San Antonio is part of the Relay Home Co. family, and we hold ourselves to the Relay Standard: a written price before we start, live arrival tracking, and before-and-after photos of every job delivered to your phone. Our insulation contractors are background-checked and uniformed, so the person who shows up is someone you can trust in your home. Expect to pay $900 to $2,400 for a typical attic insulation project in San Antonio, depending on scope.
What Certifications Matter
Our crews are factory-trained on the materials we install, including Owens Corning and Icynene systems, and we carry full liability insurance and workers’ compensation coverage. That matters because if someone gets hurt in your attic, you don’t want to be the one paying for it. We’ll show you our certificates when you ask, and we’ll note them on your written quote.
How to Spot a Good Bid
A real insulation quote specifies the material brand, the R-value you’re getting, the square footage covered, and the labor included. A vague number with no specs is a red flag. We itemize every line so you know exactly what you’re buying, and the price we quote is the price you pay. No door-step surprises, no ‘we found something extra’ upcharges.
Attic Ventilation
Attic Ventilation is the system of intake and exhaust vents that keeps air moving through your attic so heat and moisture don’t build up and destroy your insulation, roof decking, and shingles from the inside. San Antonio summers push attic temperatures past 140 degrees on a regular basis, and without proper ventilation that heat radiates down into your living space and forces your AC to run longer. Laurel Attic Insulation San Antonio evaluates your current vent setup every time we quote an insulation job, because Attic Baffles & Ventilation Prep and insulation work together: you can’t fix one without checking the other. Adding or correcting ventilation typically runs $300 to $800 depending on the type and number of vents needed, and we’ll tell you honestly if your current setup is fine and you don’t need to spend the money.
Ridge Vents and Soffit Vents
A proper ventilation system pulls air in through soffit vents at your eaves and exhausts it through ridge vents at the peak, creating continuous airflow. Many older San Antonio homes have either no ridge vent or soffits that are blocked by old insulation. We check both ends of that airflow path and clear or install as needed before we call the job done.
Powered Attic Fans
In some attic configurations, a solar or electric powered fan is the right call to move air when natural convection isn’t enough. We’ll recommend one only if your roof layout genuinely needs it, and we’ll quote the fan and installation separately so you can see exactly what you’re paying for. Not every attic needs a powered fan, and we won’t sell you one just because it’s on the truck.
Radiant Barrier
Radiant Barrier is a reflective foil material installed on the underside of your roof rafters that reflects radiant heat away from your attic, and it’s especially effective in San Antonio’s sun-blasted climate. While insulation slows conductive heat transfer, a radiant barrier blocks the radiant heat from the sun that would otherwise bake your attic space and soak into your home. Laurel Attic Insulation San Antonio installs radiant barrier as a complement to attic insulation, not a replacement for it, and the combined effect can be a measurable drop in your attic temperature and cooling load. Radiant barrier installation typically runs $800 to $1,500 for a standard San Antonio attic, depending on the roof complexity and whether we’re installing it in a new build or retrofitting an existing home.
Staple-Up vs. Foam Board
For existing homes, we staple reflective foil to the underside of rafters, leaving an air gap that’s essential for the barrier to work. In new construction, we can install a foil-faced foam board product that combines radiant reflection with a modest R-value. Both approaches work, and the right one depends on when your home was built and your attic’s access.
When Radiant Barrier Pays Off
If your attic is already insulated to R-38 or better, a radiant barrier is often the next most cost-effective upgrade for cutting cooling costs in a San Antonio summer. It works best when your AC ducts run through the attic, since it lowers the ambient temperature around those ducts and reduces heat gain through the duct walls. We’ll help you decide if it’s worth it for your specific home, based on your attic layout and current utility bills.
Attic Cleaning Services
Attic Cleaning Services involve removing debris, dust, pest droppings, and old insulation remnants from your attic space before new insulation goes in or as a standalone hygiene and safety service. In San Antonio, attics accumulate a surprising amount of junk: rat droppings, dead insects, construction debris, and decades of dust that can aggravate allergies and degrade indoor air quality. Laurel Attic Insulation San Antonio provides full attic cleaning as part of every insulation replacement job, and we also offer it as a standalone service for homeowners who aren’t ready to replace insulation but want the space cleaned and inspected. Standalone attic cleaning in San Antonio typically runs $400 to $900 depending on attic size and how much debris needs to be removed.
Debris Removal and Disposal
We vacuum out loose debris, bag and haul away junk, and dispose of everything properly, including old insulation if you’re having it removed. You won’t find a pile of trash left at your curb, and we document the before and after with photos. The attic is part of your home’s envelope, and a clean attic is a healthier attic.
Sanitizing and Deodorizing
After removing debris, we apply an EPA-registered sanitizer to neutralize odors from pests and mildew and to discourage insects from returning. If you’ve had a rat or squirrel problem in your attic, this step matters more than most people realize. We’ll also point out any entry points we notice so you can get them sealed.
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.
Attic Mold Removal
Attic Mold Removal is the process of eliminating mold growth on attic framing, sheathing, and other surfaces, and it’s a service San Antonio homeowners need more often than they expect, given our humid summers and occasional roof leaks. Mold in your attic can spread to insulation, compromise your roof decking, and send spores into your living space through ceiling penetrations. Laurel Attic Insulation San Antonio provides mold remediation as part of our attic services, using HEPA vacuuming, antimicrobial treatment, and targeted removal of contaminated insulation when necessary. Attic mold removal in San Antonio typically runs $500 to $1,200 depending on the affected area and whether insulation replacement is required, and we’ll give you a written quote after an inspection.
Finding the Moisture Source
Mold doesn’t grow without moisture, so the first thing we do is find where the water is coming from: a roof leak, a bathroom vent exhausting into the attic, or insufficient ventilation causing condensation. Removing mold without fixing the moisture source is a waste of money, and we won’t do it. We’ll identify the source, recommend the fix, and quote the remediation separately so you know exactly what you’re paying for.
Safe Removal and Prevention
Our crews use proper respiratory protection and containment when removing mold, and we treat affected surfaces with an antimicrobial product to prevent regrowth. After the mold is gone, we can address the underlying ventilation or leak issue and install new insulation if the old material was contaminated. A one-year guarantee on our mold remediation work is included, in writing.
Attic Insulation Removal
Attic Insulation Removal is the process of extracting old, damaged, or contaminated insulation from your attic so it can be replaced with fresh material, and it’s the right call when insulation is water-damaged, moldy, pest-infested, or simply too thin to be effective. In San Antonio, older homes often have original insulation that’s settled to a fraction of its original R-value, and simply blowing new insulation over the top doesn’t fix the problems underneath, which is why Attic Insulation Replacement is often the better solution. Laurel Attic Insulation San Antonio uses commercial-grade vacuum equipment to remove old insulation completely, bag it, and haul it away, leaving your attic clean and ready for new material. Full insulation removal and replacement for a typical San Antonio attic runs $1,800 to $3,500 depending on size and the condition of what’s up there.
When Removal Beats Topping Off
If your existing insulation is wet, moldy, or full of rodent droppings, topping it off just seals the problem in. Removal is also the right call if you’ve had a roof leak that soaked the insulation, because compressed, water-logged fiberglass loses most of its insulating value permanently. We’ll pull a sample during our inspection and tell you honestly whether you need full removal or just an Attic Insulation Top-Up.
What Removal Involves
We use a high-powered vacuum system that pulls insulation out through a large hose and into sealed bags, keeping dust contained and your home clean. The process usually takes four to six hours for a standard attic, and we can often install new insulation the same day. You’ll get before-and-after photos of the entire attic so you can see exactly what was removed and what went back in.
Brands We Service
We install and service insulation from Owens Corning, Icynene, and CertainTeed, among others, and our crews are factory-trained on each system we offer. For Owens Corning fiberglass batts and blown-in products, we follow the manufacturer’s installation specifications exactly, because a warranty is only as good as the installation behind it. When we install Icynene spray foam, we use the manufacturer’s certified installer protocols to make sure the foam expands and cures correctly in your attic conditions. CertainTeed’s insulation products are a frequent choice for San Antonio homes where fire resistance and sound attenuation are priorities.
We’re not tied to a single brand, which means the material we recommend is the one that fits your attic, your budget, and your goals, not whatever happens to be on our truck that day. Whether you have an existing brand you prefer or you want our honest recommendation for your specific San Antonio attic, we can help.
Signs You Need a Pro Right Now
- Your upstairs rooms are 8 to 10 degrees hotter than downstairs. That temperature gap means heat from your attic is radiating through the ceiling faster than your AC can offset it. In San Antonio summers, this usually points to insufficient or settled attic insulation, and it’s costing you money every afternoon.
- You can see the tops of your ceiling joists in the attic. If the insulation is level with or below the joists, you have roughly R-19 or less, which is way below the R-38 minimum recommended for our climate. Topping off is a same-day job in most San Antonio attics.
- Your energy bills have crept up without a change in usage. CPS Energy rates rise, sure, but a house that’s losing conditioned air through a poorly insulated attic will show a steady upward trend year over year. Sealing and insulating the attic is usually the highest-ROI fix.
- You’ve found rodent droppings or nesting material in the attic. Pests chew through insulation, compress it with their nests, and leave waste that degrades air quality. The insulation needs to come out, the entry points need sealing, and fresh material needs to go in.
- You’ve had a roof leak in the last two years. Wet insulation loses its R-value and becomes a mold risk even after the leak is patched. If you know water got into your attic, have the insulation checked before it turns into a bigger problem.
Our Process, Step by Step
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Inspection and measurement. We map your attic, measure existing insulation depth, check for moisture and mold, and evaluate your ventilation system. This takes about 30 minutes and gives us the data we need for an accurate quote.
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Written quote before any work. We hand you a line-item price that includes material brand, R-value target, square footage, labor, and any prep work like cleaning or removal. The price you see is the price you pay, period.
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Scheduled arrival you can track. You book a time, and on the day of service you get a live arrival time, the technician’s name, and photo confirmation of who’s coming. No four-hour windows, no no-shows.
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Installation with photo proof. Our uniformed crew performs the work, and you receive before-and-after photos of your attic delivered to your phone. You don’t have to climb up there to verify what we did.
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Written guarantee and digital invoice. Every job includes our 365-Day Done Right Promise in writing, and you pay from a link on your phone. If anything’s not right within that year, we come back and fix it at no charge.
How Much Does Attic Insulation Cost in San Antonio?
A typical attic insulation job in San Antonio runs $900 to $2,400 depending on the size of your attic and the R-value you’re targeting. Attic Insulation in San Antonio costs less when you’re topping off existing insulation and more when you need full removal due to moisture, mold, or pest damage. For a standard 1,500 to 2,000 square foot home, plan on $1,200 to $1,800 for blown-in insulation to reach R-38, and $1,800 to $3,500 if you need old insulation removed first.
What affects the price: attic accessibility, the amount of prep work needed, whether your ventilation system needs upgrades, and the material you choose. Fiberglass blown-in is the most budget-friendly, while spray foam runs higher but delivers better air sealing. To avoid overpaying, get a written line-item quote that specifies the R-value, the material brand, and the square footage covered. Our free estimates include all of that, plus a photo inspection of your attic and an honest recommendation on what’s actually worth doing. Call (254) 279-0971 and we’ll walk you through the numbers for your specific home.
Our Service Area Near San Antonio
Laurel Attic Insulation serves San Antonio and the surrounding communities, including Attic Insulation in Selma, Attic Insulation in Converse, Leon Valley, Alamo Heights, Windcrest, Castle Hills, Scenic Oaks, Terrell Hills, Kirby, Lackland AFB, and Live Oak. We can typically reach most homes in these areas within 24 to 48 hours for an inspection, and same-day service is often available when you call before noon. Our crews know the housing stock in each of these neighborhoods, from the mid-century ranch homes in Terrell Hills to the newer construction in Scenic Oaks and the base housing around Lackland.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 About Attic Insulation in San Antonio
Attic insulation is material installed in your attic floor or roof that slows heat from moving between your living space and the outside air. In San Antonio’s hot climate, its primary job is keeping heat out of your home during the long summer, but it also helps hold warmth in during our brief winter cold snaps. The most common materials are fiberglass batts, blown-in fiberglass or cellulose, and spray foam.
Most blown-in insulation jobs in San Antonio are completed in a single day, usually four to six hours including setup and cleanup. If your job includes old insulation removal first, plan on a full day or possibly two for larger attics. We’ll give you a firm timeline in your written quote.
Most attic insulation projects in San Antonio run $900 to $2,400 depending on square footage, material choice, and the R-value you’re targeting. Full removal and replacement runs $1,800 to $3,500. Your exact price depends on your attic’s current condition, and we provide a free written estimate before any work begins so you know the number upfront.
Yes, we install and service insulation from Owens Corning, Icynene, CertainTeed, Johns Manville, Knauf, Rockwool, Demilec, and GreenFiber. Our crews are factory-trained on the systems they install, and we match the material to your attic’s specific needs rather than pushing a single brand. If you have a brand preference, we’ll quote it for you.
Yes, we answer calls live 24 hours a day, 7 days a week, and we can often get a technician to your San Antonio home the same day for urgent issues like a roof leak that’s soaked your insulation or a pest problem that’s torn up your attic. Call (254) 279-0971 anytime and a real person will answer.
Every job includes our 365-Day Done Right Promise in writing: if our workmanship isn’t right within a full year, we come back and fix it at no charge. If a repair fails, you get a free second visit, no questions asked. The material warranties from manufacturers like Owens Corning and Icynene apply on top of our workmanship guarantee.
Clear a path to the attic access point and move any items stored near the attic hatch. We’ll handle everything else, including protecting your floors and cleaning up when we’re done. If you’re having old insulation removed, we’ll bring the vacuum equipment and disposal bags, so there’s nothing heavy for you to move.
Schedule Your Attic Insulation Service in San Antonio Today
You don’t have to live with a hot upstairs and a CPS Energy bill that keeps climbing. Call Laurel Attic Insulation San Antonio at (254) 279-0971 for a free, no-obligation estimate, and we’ll give you a written price before any work starts. A live person answers around the clock, and we can often get you on the schedule same-day. One call, one quote, and a cooler home this summer.
Written by Chase Whitaker, Owner at Laurel Attic Insulation San Antonio, serving San Antonio since 2003.