Trusted Blown-In Insulation for Round Rock Homeowners
Our Blown-In Insulation in Round Rock typically costs $1.80 to $3.20 per square foot installed, with most attic jobs running $2,400 to $5,800 depending on depth, material, and whether air sealing is needed first. At Topside Attic Insulation Round Rock, we’ve sealed and insulated over 9,000 homes since 2016, and we publish before-and-after blower-door numbers on every job so you can see the actual performance change. Call (737) 259-7528 for a written price before any work starts - that’s Haven Standard Clause 1, no exceptions.
Round Rock’s combination of hot summers, mild winters, and the occasional hard freeze means attics here face thermal stress most of the year. We’ve worked in homes from Old Town to Forest Creek, from Mayfield Ranch to Behrens Ranch, and the pattern is consistent: insulation settled below R-30, top plates leaking conditioned air into the attic, and can lights acting like chimneys in July. The result is uneven room temperatures, HVAC systems that cycle too often, and energy bills that climb without explanation. We’re not here to sell you more insulation than you need. We’re here to measure what’s there, seal what leaks, and document what changes.
Our crews are background-checked and uniformed, and a live person answers calls 24/7. When you book with Topside Attic Insulation Round Rock, you get a named technician, a text when they’re on the way, and a Documented Photo Record when the job is done. No voicemail loops. No callback windows measured in business days.
What Our Blown-In Insulation Service Includes
Blown-In Cellulose
Blown-in cellulose is ground paper fiber treated with borate fire retardant, dense-packed to resist airflow and pests. It’s the material we reach for most often in Round Rock’s older neighborhoods - Old Town, Sam Bass Trails, the homes built before 2005 where wall cavities were left empty and attics were barely insulated to begin with. Cellulose performs well in our climate because it handles the humidity swings of Central Texas better than loose fiberglass, and at R-3.2 to R-3.8 per inch, it packs more thermal resistance into tight spaces. We source cellulose from GreenFiber and Owens Corning, and we never blow it over an unsealed attic floor. Top plates, can lights, plumbing penetrations, and chimney chases get sealed first. Then we insulate. In that order, always.
Blown-In Fiberglass
Blown-in fiberglass is spun glass fiber, lighter than cellulose and less likely to settle over decades, though it requires greater depth to achieve the same R-value. We specify fiberglass for new construction and for attics with significant storage load - the material doesn’t compress as easily when homeowners walk boards. In Round Rock’s newer subdivisions like Paloma Lake and Siena, where attics are already partially insulated to R-30 or R-38, we often use blown-in fiberglass for top-ups that bring the assembly to R-49 or R-60 without overloading the ceiling joists. We stock Johns Manville and Knauf fiberglass, and we calibrate our blowing machines to manufacturer spec so the density matches what the R-value rating assumes.
Dense-Pack Wall Insulation
Dense-pack wall insulation is blown-in material - cellulose or fiberglass - installed at 3.5 pounds per cubic foot or higher into enclosed stud cavities, dense enough to resist convection and slow air leakage through the wall assembly. This is the service we provide when Round Rock homeowners tell us their walls are cold to the touch, or when a thermal camera shows the studs glowing orange in winter. Most homes built between 1980 and 2010 in neighborhoods like Round Rock West and Meadow Lake have empty walls or poorly installed batt insulation with gaps at the top and bottom plates. We drill access holes, dense-pack the cavity, and patch the drywall. The blower-door test before and after tells the story: we’ve seen wall dense-packing drop air leakage by 15 to 25 percent on its own.
Blown-In Top-Up
Blown-in top-up is the addition of loose-fill insulation over existing material to restore or increase R-value where settlement, moisture, or disturbance has reduced performance. In Round Rock, we perform top-ups most often in attics where original fiberglass or cellulose has compressed from R-38 to R-19 or lower - common in homes with ductwork in the attic, where technicians have trampled the insulation for years. We start with a depth measurement across the attic floor, identify and seal any new leaks that have developed since the original installation, then blow to the target depth. Every top-up includes a written scope stating the starting R-value, the target R-value, and the depth we’ll achieve. You get the Documented Photo Record showing before, during, and after. No guesswork.
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 Blown-In Insulation
We’ve installed blown-in insulation systems from every major manufacturer in the North American market, and we don’t lock you into proprietary products. Our crews are trained on the blowing equipment and density specifications for Johns Manville fiberglass, which we use frequently in attics where low weight and high recovery are priorities. We’ve also dense-packed hundreds of wall cavities with Knauf cellulose, particularly in Round Rock’s 1990s-era homes where the borate treatment adds pest resistance that homeowners in brush-adjacent neighborhoods like Cat Hollow appreciate. Rockwool mineral wool is our choice for fire-blocking applications and for homeowners who want the sound-dampening properties of stone wool in interior walls. CertainTeed’s Optima system rounds out our fiberglass options for high-performance attics where consistent coverage matters.
Whether your existing insulation is Johns Manville, Knauf, Rockwool, CertainTeed, or any other make, we can assess it, match it, or replace it with material that performs to spec. We don’t carry house brands or relabeled products. What goes in your attic is what the manufacturer tested and rated.
Signs You Need Blown-In Insulation Right Now
- Your upstairs rooms run 8 to 12 degrees hotter than downstairs in July. This isn’t normal in a properly insulated home. In Round Rock, where attic temperatures exceed 140 degrees on summer afternoons, inadequate insulation lets that heat radiate through the ceiling plane. We’ve measured floor-to-ceiling temperature differentials of 15 degrees in homes with settled insulation below R-20. The HVAC runs constantly and never catches up.
- Your energy bill spikes every August and January despite no change in thermostat setting. When insulation performance drops, your heating and cooling system compensates by running longer cycles. We see this pattern in Round Rock homes with original insulation from the 1990s and early 2000s, particularly in neighborhoods like Windy Park and Greenlawn Crossing where construction predates current energy codes by a decade or more.
- You can see the ceiling joists in your attic. Proper attic insulation in Round Rock should bury the joists by at least several inches. If the framing is visible, you’re likely at R-19 or below. Current code for new construction is R-38 to R-49, and many existing homes benefit from R-60 in our climate zone. The fix is a measured top-up or full replacement, not a guess.
- Your attic hatch has no weatherstripping and no insulation blanket. This is a detail that matters more than most homeowners realize. An unsealed attic hatch is a chimney in winter and a heat injector in summer. We include hatch sealing and insulation in every attic job, because a 2-square-foot unsealed opening can undo the performance of 1,000 square feet of new insulation.
- Your home was built before 2010 and has never had a blower-door test. You don’t know what you don’t know. We’ve tested homes in Round Rock that leaked 5,000 CFM50 or more - enough to empty the conditioned air volume every 20 minutes in winter. Blown-in insulation without air sealing is like putting a sweater on in a windstorm. We measure first, seal second, insulate third.
Our Blown-In Insulation Process - Step by Step
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Schedule and arrival. You call (737) 259-7528 and speak to a live person. We book a time that works for you, send a text when your technician is en route, and arrive in a marked vehicle with a uniformed crew. Under Haven Standard: Arrive on schedule, you get a named technician.
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Attic inspection and blower-door test. We inspect the attic for existing insulation depth, condition, and type. On applicable jobs, we run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing. The technician records the CFM50 reading and identifies the largest leakage paths: top plates, can lights, duct boots, plumbing and electrical penetrations, chimney chases.
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Written price and scope. Before any work starts, you receive a written price, a written scope of work, and a written warranty. This is Haven Standard Clause 1. No verbal estimates. No “we’ll see how it goes.” The price is flat. The scope specifies materials, depths, and air-sealing details. The warranty is the 365-Day Done Right Promise.
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Air sealing first, then insulation. We seal every identified leak with appropriate materials: fire-rated caulk for top plates and framing gaps, rigid foam and fire caulk for large penetrations, airtight boxes or gaskets for can lights, mastic for duct connections. Only after the attic floor is sealed do we begin blowing insulation. In Round Rock’s climate, this sequence typically improves blower-door results by 30 to 50 percent compared to insulation-only jobs.
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Installation, testing, and documentation. We blow to the specified depth, using depth markers across the attic floor for verification. Where applicable, we run a second blower-door test and provide the before-and-after numbers. You receive a Documented Photo Record showing the condition we found, the sealing work, the insulation depth, and the final result. The crew cleans the work area and reviews the documentation with you before leaving.
How Much Does Blown-In Insulation Cost in Round Rock?
Most Blown-In Insulation pricing in Round Rock runs between $2,400 and $5,800 for a typical single-family attic of 1,500 to 2,500 square feet. Here’s how that breaks down by scenario:
| Service | Typical Range | What Affects Price |
|---|---|---|
| Blown-in cellulose attic (R-38 to R-49) | $2,400 - $3,800 | Attic square footage, accessibility, need for air sealing |
| Blown-in fiberglass attic (R-38 to R-60) | $2,800 - $4,500 | Depth required, existing insulation removal, storage platforms |
| Dense-pack wall insulation | $3,200 - $5,800 | Wall square footage, interior or exterior access, drywall repair |
| Blown-in top-up to existing insulation | $1,800 - $3,200 | Current depth, target depth, extent of air sealing needed |
Several factors move the price within these ranges. Attic accessibility matters: a steep roof pitch, limited hatch size, or extensive HVAC equipment in the attic adds labor time. Existing insulation in poor condition - wet, moldy, or rodent-contaminated - requires removal before new material goes in, and we don’t cover over compromised insulation. Air sealing scope is the largest variable: a home with 40 can lights, multiple duct chases, and a balloon-framed wall will take longer to seal than a simple ranch with minimal penetrations.
To avoid overpaying, get a written scope that specifies material type, R-value, and installation depth. A quote that says “blow in insulation to code” without numbers is not a quote you can compare. We provide a Free Second Opinion on any written estimate - bring us a competing quote and we’ll read it with you, line by line. Our estimates are free, detailed, and delivered in writing before any work starts. Call (737) 259-7528 to schedule.
Blown-In Insulation Near Round Rock - Our Service Area
We serve Round Rock and the full Central Texas corridor with typical response times of same-day to next-day for estimates. Our crews work regularly in Blown-In Insulation in Brushy Creek, Blown-In Insulation in Wells Branch, and throughout Pflugerville, Hutto, Jollyville, Cedar Park, Georgetown, Leander, Manor, Taylor, and Austin. Whether you’re in a 1980s ranch in Wells Branch or a new build in Paloma Lake, we travel with the same equipment, the same materials, and the same documentation standards. The Haven Standard doesn’t change by zip code.
Serving Round Rock, TX - Our Local Coverage Area
We’re based in the Round Rock area and know this community well, and we also offer Blown-In Insulation in Pflugerville. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Blown-In Insulation in Round Rock
Blown-in insulation is loose-fill material - cellulose, fiberglass, or mineral wool - installed with a blowing machine that breaks up clumps and distributes it evenly across attic floors or into wall cavities. Unlike batt insulation, which comes in pre-cut rectangles that leave gaps around obstructions, blown-in fills irregular spaces and provides continuous coverage. In Round Rock’s older homes with complex rooflines and numerous penetrations, this gap-free coverage typically outperforms batt by 15 to 20 percent in real-world conditions.
Most attic jobs in Round Rock are completed in one day, typically 4 to 8 hours depending on attic size, air-sealing scope, and whether existing insulation requires removal. Dense-pack wall insulation takes 1 to 2 days due to the access hole drilling and drywall patching. We schedule a specific arrival window, not an all-day wait, and you receive a text when the crew is on the way. Call (737) 259-7528 for availability - estimates are free.
We also provide Hutto Blown-In Insulation, which typically costs $1.80 to $3.20 per square foot installed, with most complete attic jobs falling between $2,400 and $5,800. Dense-pack wall insulation runs higher due to access and finishing work. The final price depends on attic size, material choice, air-sealing requirements, and whether removal of existing material is needed. We provide a written price before any work starts, and we offer a Free Second Opinion on any written estimate from another contractor. Call (737) 259-7528 for your specific quote.
Yes. We install and service blown-in insulation from Johns Manville, Knauf, Rockwool, CertainTeed, Owens Corning, and other major manufacturers. We don’t use proprietary or relabeled products, and we calibrate our equipment to each manufacturer’s density specification so the installed R-value matches the rated performance. Whether your existing insulation is one of these brands or another make, we can assess it and recommend the right match or upgrade.
We answer calls 24/7 and can typically schedule same-day or next-day service for urgent situations - a failed HVAC system revealing inadequate insulation, a roof leak saturating existing material, or a home sale inspection requiring rapid documentation. While blown-in insulation itself is rarely a same-day emergency, the comfort and energy costs of failed insulation can be. A live person answers when you call (737) 259-7528, and we’ll get a crew out as quickly as the scope requires.
All completed work is covered by our 365-Day Done Right Promise - if it’s not done right, we make it right. This is backed by a written scope and written warranty delivered before anyone starts, per Haven Standard Clause 1. The warranty covers both materials and workmanship. For insulation specifically, we also guarantee the installed depth and R-value as specified in your written scope, verified by depth markers and photo documentation.
Clear a path to the attic hatch and remove any stored items from the attic floor that you want to keep - our crew will cover remaining items but cannot move heavy or fragile belongings. Ensure we have access to electrical outlets for our blowing equipment, and provide any relevant documentation from prior energy audits or insulation work. We’ll handle the rest: protective floor coverings, containment of the work area, and thorough cleanup when finished. You’ll receive a Documented Photo Record showing the completed work. Call (737) 259-7528 to schedule - we’ll confirm any specific preparation needs when we book.
Schedule Your Blown-In Insulation Service in Round Rock Today
Call (737) 259-7528 to speak with a live person and schedule your free estimate. We’ll inspect your attic, run a blower-door test if applicable, and deliver a written price before any work starts. Every job includes air sealing first, insulation second, and documented proof of performance when we’re done. The 365-Day Done Right Promise applies to all work. No voicemail loops. No callback windows measured in business days. Just a written scope, a flat price, and a crew that shows up when we say we will.
Written by Wes Okafor, Owner at Topside Attic Insulation Round Rock, serving Round Rock and Central Texas since 2016.