Blown-In Insulation in Selma - Same-Day Service, Done Right the First Time

Fast, Reliable Blown-In Insulation Across Selma

Most blown-in insulation jobs in Selma run $1,800-$4,200 depending on attic size and whether walls are included, and our crews typically complete the work in a single day. We dispatch to Selma from our San Antonio scheduling office, with most appointments available within 48-72 hours. If you’re in a neighborhood off Loop 1604, near the I-35 corridor, or closer to Retama Parkway, we’ve likely already worked on a home with your exact floor plan. Call (830) 549-6646 for a written price before any work starts.

Call (830) 549-6646

Selma’s housing stock is unusual. Nearly every home here was built during the same 2000s-2010s production-builder boom along the I-35 growth corridor. That means the entire city shares the same problem at roughly the same age: code-minimum R-30 attic insulation and R-13 walls that have settled, compressed, and underperformed for fifteen to twenty-five years. There is no mixed vintage here. No older homes with better original builds. Just thousands of nearly identical tract houses, all needing the same blown-in correction.

Why Topside Attic Insulation Seguin Is Selma’s Preferred Blown-In Insulation Company

We’ve sealed and insulated more than 9,000 homes since 2016, and a significant concentration of that work has been in the I-35 corridor northeast of San Antonio. Selma homeowners find us because they read the three-star reviews as carefully as the five-star ones, and they notice that we publish before-and-after blower-door numbers - a pressurization reading that shows, in one figure, how much conditioned air the home was losing before and after the work. The documentation matters more than how long we’ve been around.

Our response time to Selma is typically same-day or next-day for estimates, with most blown-in jobs scheduled within a week. Crews are background-checked and uniformed, and calls are answered by a live person, 24/7. No voicemail loops. No callback windows measured in business days.

Local knowledge specific to Selma matters. We know which production builders used which insulation contractors during which phase of the boom. We know the brick-veneer, slab-on-grade single-stories near Evans Road typically have the same unsealed top plates and can-light penetrations. We know the homes off Lookout Road and near Retama Parkway deal with different noise and thermal loads than those closer to the I-35/Loop 1604 interchange. That knowledge changes what we find when we open the attic hatch, and it changes the written scope we deliver before anyone lifts a tool.

Our Blown-In Insulation Services in Selma

Blown-In Cellulose

Cellulose is treated borate-fire-retardant paper fiber that packs tightly into irregular attic spaces and wall cavities. In Selma’s post-2000 tract homes, we frequently specify GreenFiber cellulose for homeowners who want both thermal performance and sound control. The material fills around ductwork, electrical penetrations, and the irregular framing common to production-built attics better than fiberglass batts ever could. For homes near the I-35/Loop 1604 interchange, cellulose’s higher density also provides measurable noise attenuation against highway traffic.

Blown-In Fiberglass

We use Owens Corning loose-fill fiberglass for attic top-ups where the original builder-grade blown fiberglass has settled to half its original depth, which is the condition we find in most Selma attics. Fiberglass doesn’t settle as much as cellulose over time, and it performs well in the extreme attic temperatures Selma sees - routinely exceeding 150°F through the seven-month cooling season. We blow it to the depth required for your target R-value, typically R-38 to R-49 for Selma’s climate zone, over a properly sealed attic floor.

Dense-Pack Wall Insulation

Dense-pack is the service that distinguishes Selma from quieter adjacent cities. We blow cellulose into exterior wall cavities at 3.5 pounds per cubic foot, which locks the material in place and creates both a thermal barrier and a sound barrier. Homes near the I-35/Loop 1604 interchange specifically use this service as much for highway noise attenuation as for thermal performance. The dual benefit resonates with homeowners who bought near the commercial corridor for convenience but now live with the traffic roar. We recently topped up a brick-veneer, single-story tract home off Loop 1604 near the I-35 interchange where builder-grade blown fiberglass had compressed to about half its original depth, and the homeowner also wanted the highway roar cut down. Our tech dense-packed the exterior walls with GreenFiber cellulose for both R-value and sound attenuation, then blew Owens Corning fiberglass over the settled attic layer to restore the thermal boundary. The homeowner reported the house held temperature noticeably better and the traffic noise from the corridor was markedly reduced.

Blown-In Top-Up

This is the most common service we perform in Selma, and there’s a structural reason why: every production-built home in the city was originally insulated to code-minimum R-30, and that blown fiberglass has now had fifteen to twenty-five years to settle and compress. The effective R-value in most Selma attics we open is well below R-20. A blown-in top-up restores the thermal boundary without removing the existing material, assuming it’s clean and dry. We air-seal first - top plates, can lights, penetrations - then blow to the depth that achieves your target R-value. Under Haven Standard Clause 1, you get a written price and written scope before any work starts, and a Documented Photo Record when the crew leaves.

Before

After

Trusted Brands We Service in Selma

We source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary product lock-in that limits your options. For Selma jobs, we typically stock Owens Corning loose-fill fiberglass and GreenFiber cellulose on our trucks, which means no supply-house delay for standard blown-in or dense-pack work. If your home has specific compatibility needs - say, an existing Johns Manville installation you want to match - we source it. The brand matters less than the installation quality and the air-sealing work that precedes it.

Common Blown-In Insulation Problems We See in Selma Homes

• Settled builder-grade fiberglass in post-2000 tract attics. The blown fiberglass originally installed in Selma’s boom-era homes has compressed over 15-25 years, dropping effective R-value well below the original R-30 and forcing HVAC systems to run nearly nonstop through the seven-month cooling season. We measure the remaining depth and calculate the actual R-value before recommending a top-up.
• Unsealed air leaks bypassing wall insulation near the I-35/Loop 1604 interchange. Dense-pack wall jobs in these homes can be compromised by the same fast tract-construction shortcuts - unsealed top plates, penetrations, and gaps in the brick veneer cavity - that let highway noise and outside air bypass the insulation entirely. We seal first, then insulate. In that order.
• Inadequate cold-side performance after the February 2021 freeze. The occasional hard freeze like February 2021 exposed how little thermal protection Selma’s code-minimum installs provide. Homes that didn’t upgrade then are still running thin insulation that underperforms in both temperature extremes, not just summer.
• Attic floors insulated before air sealing. Some Selma homeowners have had insulation added by contractors who skipped the sealing step. The result is a thick layer of fiberglass filtering dusty attic air into the house through every penetration. We remove and re-do these jobs properly, with blower-door verification.

Pricing for Blown-In Insulation in Selma, TX

We Also Serve Cities Near Selma

Our crews work throughout the I-35 corridor and surrounding communities. If you’re in Selma or nearby Seguin, New Braunfels, Cibolo, or Schertz, we carry the same materials, the same written-price policy, and the same blower-door documentation standard to every job. Dispatch and scheduling are coordinated from our San Antonio office.

FAQs - Blown-In Insulation in Selma