Fast, Reliable Blown-In Insulation Across Alamo Heights
Blown-in insulation in Alamo Heights typically runs $1,800-$4,500 for attic work and $2,200-$5,800 for dense-pack wall retrofits, with most jobs completed in one day. We’re the Blown-In Insulation crew that serves Alamo Heights from our San Antonio office, and we know the difference between a standard metro job and one in the 78209 zip code. Homes here aren’t built like the rest of Bexar County. That matters when you’re blowing cellulose or fiberglass into walls and attics that were finished before modern insulation codes existed.
Call us at (830) 529-7780. A live person answers, 24/7. We’ll schedule a free estimate and give you a written price before any work starts - Haven Standard Clause 1, no exceptions.
Why Topside Attic Insulation Boerne Is Alamo Heights’s Preferred Blown-In Insulation Company
We’ve worked enough jobs in Alamo Heights to know the local inspection process by heart. Because Alamo Heights is its own municipality completely encircled by San Antonio, insulation permits here are pulled through Alamo Heights City Hall - not Bexar County or San Antonio. Contractors who miss this detail stall out at final inspection. We don’t.
Our crews have been background-checked and uniformed since we started operating under The Haven Standard in 2016. Over 9,000 homes sealed and insulated since then, every one with a written price before work started and a documented record when the crew left. In Alamo Heights specifically, we regularly return to streets like Tuxedo, Fresno, and Castano for referrals from preservation-minded homeowners who needed their original plaster and woodwork left intact.
Response time to Alamo Heights is same-day or next-day for estimates, with crews dispatched from our San Antonio office. Emergency calls get a live person, not a voicemail loop, and you’ll get a text when your technician is on the way.
Wes Okafor leads this operation, and the documentation standard he set - written scope, written warranty, before-and-after blower-door numbers on every applicable job - is what you’ll receive on your Alamo Heights property.
Our Blown-In Insulation Services in Alamo Heights
Blown-In Cellulose
We use GreenFiber cellulose for many Alamo Heights wall retrofits because it dense-packs well into irregular plaster-and-lath cavities and settles less than you’d expect in balloon-framed walls. On a 1948 two-story on Tuxedo, our crew found original plaster-and-lath walls over balloon framing with no wall insulation and a kneewall attic cavity wide open from roofline to living space - a full thermal bypass. We dense-packed the walls with GreenFiber cellulose through 1-7/8″ drill penetrations patched from inside closets where plaster repairs would hide, then air-sealed and top-up blew Owens Corning fiberglass to R-49 in the attic. The homeowners kept every stick of original woodwork and the house finally held temperature in an August attic that still hit 150°F. Cellulose runs $1.80-$2.40 per square foot of wall cavity in Alamo Heights, with most whole-house wall jobs landing between $3,200 and $5,800.
Blown-In Fiberglass
Owens Corning ProCat fiberglass is our go-to for attic top-ups and new-blow installations in Alamo Heights, especially where the existing insulation is compressed, moisture-stained, or rodent-compromised. We never blow new material over an unsealed attic floor - top plates, can lights, and penetrations get sealed first. Attic temperatures in Alamo Heights routinely exceed 150°F in July and August; fiberglass blown to R-38 or R-49 with proper air sealing gives you the thermal boundary you need without the weight of cellulose on older ceiling drywall. A typical attic blow in a 1,800-2,400 square foot Alamo Heights home runs $1,800-$3,400.
Dense-Pack Wall Insulation
This is the service that saves Alamo Heights homes from destructive retrofit work. Dense-pack blown-in - cellulose or fiberglass - is forced into wall cavities at 3.5-4.0 pounds per cubic foot, creating a continuous insulation layer without removing plaster or drywall. For 1920s-1960s homes with irreplaceable interior finishes, it’s the only sellable approach. We drill 1-7/8″ holes, usually from the exterior or inside closets, patch with matching materials, and the original woodwork never gets touched. Alamo Heights’s pre-1970 housing stock is exactly why we perform more dense-pack wall work here than in any other San Antonio-area municipality. Pricing starts around $2,200 for a partial retrofit and runs to $5,800 for a full two-story dense-pack with attic air sealing.
Blown-In Top-Up
Many Alamo Heights attics have some existing insulation - thin fiberglass batts from a 1980s retrofit, or original cellulose that’s settled to R-11 or less. We assess what’s there, remove compromised material if needed, seal air leaks, and blow new insulation to achieve target R-value. A top-up is cheaper than a full removal-and-replace when the existing material is clean and the attic floor is accessible for sealing. Most Alamo Heights top-ups run $1,200-$2,800 depending on attic square footage and how much sealing is required.
What happens when you call
- 1
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.
Trusted Brands We Service in Alamo Heights
We source materials from Owens Corning, Johns Manville, Knauf, Icynene, Demilec, and GreenFiber - no proprietary product lock-in means we specify what performs for your specific Alamo Heights home, not what a manufacturer requires us to sell. For the 78209 market, that usually means Owens Corning fiberglass for attic work and GreenFiber cellulose for dense-pack walls. We stock local inventory for fast turnaround, and crews carry both materials on trucks serving Alamo Heights so we’re not waiting on a delivery to start your job.
Common Blown-In Insulation Problems We See in Alamo Heights Homes
- Wrong permit jurisdiction. A contractor pulls a San Antonio or Bexar County permit instead of going through Alamo Heights City Hall, stalling or failing the inspection on a finished job. We verify jurisdiction before we schedule rough-in.
- Plaster destruction from batt retrofits. Crews tear into plaster-and-lath walls to run batts, destroying irreplaceable 1930s-1950s finishes when dense-pack blown-in through small drill holes was the sellable retrofit. We’ve repaired this mistake for other contractors’ failed jobs.
- Unsealed balloon-frame channels. Cellulose gets blown over unsealed balloon-frame and kneewall chases on Broadway-corridor two-stories, so air still channels from roofline to living space and the R-value never performs. The insulation is installed. It just doesn’t work.
- Uri-era freeze damage to underinsulated walls. The February 2021 Winter Storm Uri exposed how catastrophically underprepared 1940s-1950s brick homes with minimal wall insulation are during hard freezes. We’re still doing wall retrofits for homeowners who swore they’d never let that happen again.
Pricing for Blown-In Insulation in Alamo Heights, TX
| Service | Typical Range in Alamo Heights |
|---|---|
| Attic blown-in fiberglass (R-38 to R-49) | $1,800 - $3,400 |
| Attic blown-in cellulose (R-38 to R-49) | $1,600 - $3,200 |
| Dense-pack wall insulation (cellulose or fiberglass) | $2,200 - $5,800 |
| Blown-in top-up over existing insulation | $1,200 - $2,800 |
| Attic air sealing + insulation package | $2,800 - $5,200 |
What moves you within these ranges: attic square footage, accessibility (steep pitches and tight scuttles add labor), whether we need to remove existing material, and the extent of air sealing required before we blow. Every Alamo Heights job gets a written price before any work starts - Haven Standard Clause 1 - and we offer a Free Second Opinion on any written estimate you’ve already received. Call (830) 529-7780 for your exact number.
We Also Serve Cities Near Alamo Heights
Our crews work across the northern San Antonio metro, including Alamo Heights, Boerne, Fair Oaks Ranch, Scenic Oaks, and Helotes. Same documentation standard, same written price guarantee, same live-answer phone line. Dispatch and scheduling are coordinated from our San Antonio office.
Serving Alamo Heights, TX - Our Local Coverage Area
We’re based in the Alamo Heights 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 Alamo Heights
No. Alamo Heights is an independent municipality with its own permit and inspection process at Alamo Heights City Hall. Contractors who assume San Antonio jurisdiction apply here are wrong, and we’ve seen jobs stall for weeks when the wrong permit gets pulled. We verify jurisdiction and pull the correct permit before rough-in on every 78209 job. Call (830) 529-7780 and we’ll confirm the permit path for your specific property.
Yes. Dense-pack blown-in insulation is designed exactly for this. We drill 1-7/8″ holes - usually from inside closets or behind baseboards where repairs hide - and blow cellulose or fiberglass into the wall cavity at 3.5-4.0 pounds per cubic foot. The plaster stays intact, the woodwork stays original, and you get a continuous insulation layer that batts could never achieve in irregular stud bays. Most Alamo Heights dense-pack wall jobs run $2,200-$5,800. We’ll give you a written price after we see the wall construction.
Balloon framing and uninsulated kneewall cavities. Many of these 1920s-1950s homes were built with continuous wall studs from foundation to roofline, creating open channels that move attic air straight into conditioned space. The kneewall attic behind upstairs bedrooms is often wide open, with no thermal boundary at all. We find this on nearly every Broadway-corridor two-story we inspect. Air sealing these chases before blowing insulation is non-negotiable for performance. Our blower-door test will show you the exact CFM50 number before and after we fix it.
Attic temperatures in Alamo Heights routinely exceed 150°F in July and August. Blown-in insulation to R-38 or R-49, properly installed over a sealed attic floor, drops the temperature differential across your ceiling from that 150°F to something your HVAC can handle. Without air sealing first, though, the insulation is just a filter for hot air that’s still moving through. We seal, then insulate, then prove the result with a blower-door test. Call (830) 529-7780 for an estimate - they’re free, and you’ll get the written price before we start.
Yes. Since February 2021, we’ve seen a sharp increase in wall insulation inquiries from Alamo Heights owners who watched their 1940s-1950s brick homes drop to unlivable temperatures during the freeze. Attic insulation alone doesn’t protect against conductive heat loss through uninsulated walls. Dense-pack wall retrofits now make up a larger share of our Alamo Heights work than before Uri, and homeowners specifically ask for continuous insulation solutions that address both summer attic heat and winter wall losses. We can assess both in a single visit and give you a written scope for each.
Written by Wes Okafor, Owner at Topside Attic Insulation Boerne, serving Alamo Heights since 2016 under The Haven Standard.