Fast, Reliable Blown-In Insulation Across Cedar Park
Most blown-in insulation jobs in Cedar Park run $1,800-$4,500 for a typical 2,000-square-foot attic, and our crews can usually inspect and start work within 48 hours of your call. We know the post-2000 production homes off 183A and Lakeline Boulevard inside out - DR Horton, KB Home, and Meritage floor plans that share the same vented attic geometry, the same compressed builder-grade R-30 blown fiberglass, and the same air-sealing gaps at the top plates. Dispatch and scheduling run from our Austin office, but crews serving Cedar Park live here and work here. Call (254) 970-2136 for a written price before any work starts - that’s Haven Standard Clause 1, no exceptions.
Why Topside Attic Insulation Georgetown Is Cedar Park’s Preferred Blown-In Insulation Company
We’ve sealed and insulated over 9,000 homes since 2016, and a significant share of those have been in Cedar Park’s uniform post-2000 subdivisions. The reviews that matter most to us are the ones that mention specific outcomes - a blower-door reading dropping from 4,200 to 2,100 CFM50, a living room holding 4-5°F cooler on 105°F afternoons, no frozen pipes after Uri. Our response time to Cedar Park neighborhoods like Twin Creeks, Ranch at Brushy Creek, and Forest Oaks is typically same-day or next-day because we know the floor plans before we arrive. A technician who has air-sealed one Meritage attic on your street has already mapped the top-plate gaps, can-light penetrations, and duct chases for the house next door. That local pattern recognition saves time and cuts waste.
Every job starts with a written scope and written price - no work starts without it - and ends with a Documented Photo Record plus before-and-after blower-door numbers on applicable jobs. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way. The 365-Day Done Right Promise applies to all completed work. If it’s not done right, we make it right.
Our Blown-In Insulation Services in Cedar Park

Blown-In Cellulose
We use GreenFiber cellulose for most Cedar Park attic retrofits because it performs better than fiberglass in our 150°F+ attic conditions and settles less over time. Cellulose is treated with borate fire retardant and pest deterrent, which matters in attics where roof rats have been an issue in some Cedar Park subdivisions. A typical full cellulose install in a 2,400-square-foot Cedar Park home runs $2,800-$4,200, including air sealing of top plates and can lights. We dense-pack to R-38 or R-49 depending on your roof pitch and energy goals.

Blown-In Fiberglass
When we do use fiberglass, it’s Owens Corning ProCat or Johns Manville Climate Pro - never the loose, low-density builder-grade product that came with your house. Blown-in fiberglass works well for top-ups in Cedar Park homes where the original R-30 hasn’t completely degraded, or where moisture management is the primary concern. We see this most often in newer Cedar Park builds from the 2015-2020 window where the original insulation is thin but not yet compacted to nothing. Fiberglass top-ups typically run $1,800-$3,200.

Dense-Pack Wall Insulation
Cedar Park’s production builders rarely insulated exterior walls to anything beyond minimum code, and many 2000s-era homes have empty wall cavities or poorly fitted batts. Dense-pack cellulose fills those cavities completely, reducing thermal bridging and cutting air infiltration through the envelope. We access walls from outside through siding gaps or from inside through strategic drywall cuts - whichever preserves more of your finish. Dense-pack wall jobs in Cedar Park tract homes generally fall between $3,500 and $6,500 depending on wall area and access difficulty.

Blown-In Top-Up
This is our most common Cedar Park service. The original R-30 blown fiberglass in your attic has likely compacted to half its labeled depth or less. We don’t just blow more on top - we first air seal, then measure remaining insulation, then top up to spec with cellulose or fiberglass. In Twin Creeks, Ranch at Brushy Creek, and Forest Oaks, we’ve done so many of these that we carry the common floor-plan diagrams on our tablets. A blown-in top-up with air sealing typically costs $2,200-$3,800 for Cedar Park’s standard 2,000-2,500 square foot production home.

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
AfterTrusted Brands We Service in Cedar Park
We source materials from Owens Corning, Johns Manville, Knauf, and GreenFiber - no proprietary lock-in, so we match the product to your home’s condition rather than pushing whatever’s in the warehouse. For Cedar Park’s hot-humid Climate Zone 2 attics, we typically specify GreenFiber cellulose or Owens Corning ProCat fiberglass depending on whether we’re dealing with a degraded existing install or a clean-sheet retrofit. We stock common densities and treatments locally, so most Cedar Park jobs don’t wait on material delivery. If your home has Icynene or Demilec spray foam from a previous contractor, we can assess its condition and integrate new blown-in work without disturbing intact foam.
Common Blown-In Insulation Problems We See in Cedar Park Homes

- Builder-grade R-30 blown fiberglass compacted to half depth or less. In Cedar Park’s 150°F+ attics, fiberglass loses loft within 10-20 years. The labeled R-value is effectively gone, and what looks like a full attic is often a thin, heat-conducting mat.
- Unsealed top plates letting attic air leak into living space. Production builders in Cedar Park’s mid-2000s boom skipped air sealing at the wall-to-attic junction. Hot, humid attic air streams through these gaps all summer, loading your A/C and undoing whatever insulation value remains.
- Water lines in unconditioned attics with no thermal protection. Cedar Park’s slab-on-grade homes route plumbing through the attic plane. During Winter Storm Uri, these lines froze by the thousands because thin or compacted blown insulation offered no buffer against single-digit temperatures.
- Can lights and duct chases creating thermal bypasses. The same floor plans repeated across Cedar Park subdivisions have the same unsealed penetrations. We template these from job to job, which is why a crew that has done one house on your street works faster and more thoroughly on the next.
Pricing for Blown-In Insulation in Cedar Park, TX
| Service | Typical Range (Cedar Park) | What Drives Cost |
|---|---|---|
| Blown-In Top-Up with Air Sealing | $2,200 - $3,800 | Existing depth, attic square footage, number of can lights/penetrations |
| Full Blown-In Cellulose (R-38 to R-49) | $2,800 - $4,500 | Attic geometry, access difficulty, whether old insulation must be removed first |
| Blown-In Fiberglass Top-Up or Full | $1,800 - $3,800 | Density specified, existing condition, air sealing scope |
| Dense-Pack Wall Insulation | $3,500 - $6,500 | Wall area, interior vs. exterior access, siding type |
These ranges reflect what we see in Cedar Park’s standard production-home stock - 2,000 to 2,800 square feet, vented gable or hip-roof attics, slab-on-grade. Larger custom homes in areas like the Ranch at Brushy Creek estates can run higher. Every job gets a written price before any work starts, and we offer a Free Second Opinion on any competing written estimate. Call (254) 970-2136 for an exact quote - estimates are free, and the written scope comes before anyone lifts a tool.
We Also Serve Cities Near Cedar Park

Our crews work throughout the northern Austin metro, including Blown-In Insulation jobs in Leander, Round Rock, Pflugerville, and Georgetown. Each city has different housing stock and different insulation failure patterns - Cedar Park’s uniform post-2000 tract homes are distinct from Georgetown’s older mixed-era builds or Leander’s more recent exurban development. We adjust our approach accordingly rather than applying a single template.
Serving Cedar Park, TX - Our Local Coverage Area
We’re based in the Cedar Park 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 - Blown-In Insulation in Cedar Park

Measure your existing attic insulation depth with a ruler - if it’s below 10 inches, your R-30 fiberglass has compacted well below its rated performance. In Cedar Park’s 150°F attics, we regularly find original builder-grade installs measuring 4-6 inches after 15-20 years. Call (254) 970-2136 and we’ll measure it properly, photograph the condition, and give you a written price for air sealing and top-up to spec.
Cedar Park’s slab-on-grade production homes route water lines through unconditioned attics, and the thin, compacted R-30 blown fiberglass that came standard offered almost no thermal mass to buffer against sub-freezing temperatures. Homes with properly sealed and upgraded attic insulation - R-38 or better, with sealed penetrations - saw far fewer freeze events. The same attic that bakes you in summer exposes your plumbing in winter.
Not identically - every home gets its own blower-door test and written scope - but the efficiency is real. A technician who has sealed the top plates and mapped the can-light layout in one DR Horton or Meritage plan on your street knows exactly what to look for in the next. We don’t cut corners; we cut wasted diagnostic time. That pattern recognition is why we can offer firm written prices faster in Cedar Park’s uniform subdivisions than in older, more varied housing markets.
For full retrofits in Cedar Park’s hot-humid Climate Zone 2, we typically recommend cellulose - it maintains loft better at high temperatures, provides better sound dampening, and the borate treatment resists pests. Fiberglass makes sense for top-ups where the existing insulation is still functional, or where moisture sensitivity is a specific concern. We’ll test your attic conditions and recommend based on what we find, not what we prefer to sell.
Yes - and it’s more common in Cedar Park than you might expect. Many homes in Ranch at Brushy Creek and Forest Oaks have detached workshops with vented attics that need the same blown-in upgrade as the main house. Our field vignette from Twin Creeks: an oversized three-car garage with a detached workshop had a heavy 8-foot insulated door that was cycling too fast, so we swapped in a heavier-duty opener and springs setup and topped up the builder-grade R-30 blown fiberglass in the vented attic with GreenFiber cellulose. The original install was compacted to about half its labeled depth, and after air sealing the top plates and re-blowing to spec, the homeowner reported the living room staying 4-5°F cooler on 105°F afternoons and no repeat of the pipe freeze they saw during Uri. We document everything - photos, blower-door readings, written scope - so you have the record.
Ready to see what your Cedar Park attic actually needs? Call (254) 970-2136 for a free estimate. You’ll get a written price before any work starts, a named technician, and a Documented Photo Record when the crew leaves. That’s Haven Standard, and it’s how we’ve operated since 2016.
Written by Wes Okafor, Owner at Topside Attic Insulation Georgetown, serving Cedar Park since 2016.