Fast, Reliable Blown-In Insulation Across Selma
Most blown-in insulation top-offs in Selma run $1,800-$3,400 for a typical 2,000 sq ft attic, and we can usually inspect and start the same week you call. Our crews are dispatched from the San Antonio office and cover Selma daily, including the subdivisions off Olympia Parkway and along the IH-35 corridor. If your home was built during the 2000s-2020s construction boom, there’s a strong chance your attic insulation has settled well below its original rating. Call (830) 243-6352 for a free estimate with a written price before any work starts.
Why Topside Attic Insulation New Braunfels Is Selma’s Preferred Blown-In Insulation Company
We’ve worked in enough Selma attics to know the pattern by heart. The brick-veneer slab homes near Retama Parkway and the newer builds creeping toward Evans Road all share the same story: builder-grade insulation installed fast, air-sealing skipped entirely, and homeowners now paying for it in summer cooling loads that won’t quit.
Our Blown-In Insulation team has sealed and insulated over 9,000 homes since 2016. Every job gets a written price before anyone lifts a tool, a Documented Photo Record when the crew leaves, and on air-sealing jobs, before-and-after blower-door numbers so you can see the actual performance change. The 365-Day Done Right Promise applies to all completed work. If it’s not done right, we make it right. Calls are answered by a live person 24/7, no voicemail loops.
Dispatch and scheduling for Selma are coordinated from our San Antonio office, but the crews serving you are the same ones who know how to read a Selma attic: the compacted GreenFiber from 2008, the unsealed can lights in the vaulted ceilings, the top plates that were never foamed. That local knowledge changes what we find and how we fix it.
Our Blown-In Insulation Services in Selma
Blown-In Fiberglass
We install blown-in fiberglass from Owens Corning and Johns Manville in Selma attics where the original material has degraded past recovery. Fiberglass doesn’t rot or support mold, which matters in Selma’s hot-humid transition zone where attic moisture can spike during shoulder seasons. We blow to an honest R-38-R-49, measured by depth and density, not by the bag count. And we never blow over an unsealed attic floor. Air sealing at top plates, can lights, and penetrations comes first. Always.
Blown-In Cellulose
Cellulose from GreenFiber is our choice for Selma homeowners who want a higher recycled content and better resistance to air movement within the insulation layer itself. Cellulose settles less than fiberglass over time, and at the densities we install, it performs closer to its labeled R-value through the material’s lifespan. We use cellulose for full attic fills and for dense-pack applications in wall cavities where fiberglass batts failed. Every load is treated with borate fire retardant, and we document the installed weight and depth on your job record.
Blown-In Top-Up
This is the dominant call type in Selma, and for good reason. The blown-in fiberglass added over builder batts during the mid-2000s building frenzy has settled to an effective R-15 or less in attics nominally rated R-30 at install. Your insulation looks “new enough.” It’s not. Our tech was called to a brick-veneer tract home off Olympia Parkway where the second-story rooms ran 6-8°F hotter than the first floor every May through October. We pulled back the settled GreenFiber fiberglass over the original R-13 batts, found the top plates and can lights were never air-sealed, dense-packed the vaulted slope seams, and topped the flat attic back up with blown-in fiberglass to an honest R-38-R-49. The homeowner’s next full summer cooling cycle finally stopped short-cycling the upstairs unit. A top-off without air sealing is just adding weight to a leaky boat. We seal first, then insulate, in that order.
Dense-Pack Wall Insulation
Selma’s open floor plans with large vaulted attic spaces often leave exterior walls and garage cavities poorly insulated, especially where builders relied on R-13 batts in 2×4 framing with no attention to air barriers. Winter Storm Uri exposed how poorly these cavities perform: burst pipes and frozen lines ran through exterior walls and garages throughout Selma’s newer subdivisions. Dense-pack wall insulation fills the cavity completely, eliminating convection loops and reducing air leakage through the wall assembly. We dense-pack with cellulose or fiberglass depending on the cavity condition and moisture exposure, and we verify fill completeness with thermal imaging where accessible.
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.
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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.
Before
AfterTrusted Brands We Service in Selma
We source materials from Owens Corning, Johns Manville, GreenFiber, Knauf, and other major manufacturers. No proprietary lock-in, no house-brand substitutions. If your Selma home already has Owens Corning blown-in and you want to match the existing material for a top-off, we stock it. If you prefer GreenFiber cellulose for environmental or performance reasons, we install it. Every bag is documented by lot number on your job record. Fast turnaround on standard materials means we’re not waiting on freight while your attic sits open.
Common Blown-In Insulation Problems We See in Selma Homes
- Settled mid-2000s fiberglass performing at half its rating. The blown-in fiberglass added over builder batts during Selma’s construction boom has compacted in place, leaving nominal R-30 attics performing at R-15 or less. Invisible to a homeowner who assumes “new” insulation is still good. We measure actual depth and density, not install date.
- Unsealed top plates and can lights in vaulted attic spaces. Builder-grade open floor plans with large vaulted attic spaces were never air-sealed at top plates or can lights, so Selma’s 140°F+ summer attic air bleeds straight into living space and collapses the effective R-value. The insulation can’t do its job if the air moves through it.
- Exterior wall and garage cavities exposed by Winter Storm Uri. The 2021 freeze exposed how poorly the exterior-wall and garage cavities in these tract homes are sealed. Original blown-in doesn’t stop the pipe-freeze and stack-effect drafts that still show up on cold snaps. Dense-pack wall insulation addresses what the builder skipped.
- Short-cycling HVAC from attic heat bleed. When upstairs rooms run 6-8°F hotter than downstairs from May through October, the root cause is usually a leaky, under-insulated attic. The equipment runs harder, cycles faster, and fails sooner. We fix the envelope so the equipment can do its job.
Pricing for Blown-In Insulation in Selma, TX
Here is what blown-in insulation actually costs in Selma’s market, based on homes we have measured and completed in subdivisions off Olympia Parkway, Retama Parkway, and the IH-35 corridor:
| Service | Typical Range (Selma) |
|---|---|
| Attic air sealing + blown-in fiberglass top-off to R-38 | $1,800 - $3,400 |
| Full attic removal and re-insulation with blown-in fiberglass to R-49 | $3,200 - $5,800 |
| Blown-in cellulose top-off to R-38 | $1,900 - $3,600 |
| Dense-pack wall insulation (per sq ft of wall area) | $2.50 - $4.20 |
| Blown-in top-off only (no air sealing - not recommended, priced for comparison) | $1,200 - $2,400 |
What moves the price: attic square footage, current insulation depth and condition, accessibility (vaulted vs. flat, truss spacing), whether air sealing is included (it always is with us), and material choice. A written price with scope and warranty is delivered before any work starts. Free Second Opinion on any written estimate from another contractor. Call (830) 243-6352 for an exact quote on your home.
We Also Serve Cities Near Selma
Our crews cover Selma and the surrounding communities daily: New Braunfels, Cibolo, Seguin, and Schertz. Same written-price standard, same documentation, same live-person answering. If you’re on the border between service areas, call and we’ll confirm coverage by address.
Serving Selma, TX - Our Local Coverage Area
We’re based in the Selma 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 Selma
Because the blown-in fiberglass installed during Selma’s mid-2000s building boom has almost certainly settled to an effective R-15 or less, even if the original rating was R-30. We measure this regularly in Olympia Parkway and IH-35 corridor homes. The insulation looks intact from the hatch, but depth and density tell the real story. Call (830) 243-6352 for a free inspection and written price.
A proper top-off removes or fluffs settled material, completes air sealing at top plates and penetrations, then blows new insulation to a verified depth and density. Adding batts over settled blown-in traps the compressed layer underneath, leaves air leaks unaddressed, and often creates moisture-trapping voids. We don’t do it. Under Haven Standard: sealed first, then insulated, with documentation of both. Call for a written scope on your specific attic.
Many do, especially if you experienced frozen pipes or cold drafts during Winter Storm Uri. Selma’s tract homes were built with R-13 batts in 2×4 walls and minimal air sealing. Dense-pack wall insulation fills the cavity completely and reduces air leakage that batts cannot stop. We evaluate wall cavities with thermal imaging and recommend dense-pack where the data supports it. Estimates are free and written.
We install Owens Corning, Johns Manville, GreenFiber, and Knauf blown-in products, selected by performance characteristic and homeowner preference, not by rebate or exclusivity. No proprietary substitutions. The brand and lot number are documented on your job record. If you have a preference, we’ll note it when you call (830) 243-6352.
Yes. Vaulted attic spaces in Selma’s open floor plans have limited cavity depth and often unsealed slope intersections where conditioned air escapes. We dense-pack the vaulted slopes where accessible and top the flat attic areas to R-38-R-49. The geometry adds labor and sometimes requires specialized access, which we account for in the written price. Every vaulted attic job includes thermal imaging verification where possible. Call for a specific quote on your home’s layout.
Written by Wes Okafor, Owner at Envelope Insulation Co., operating under The Haven Standard since 2016. Our Selma customers receive the same documented accountability: written price before work starts, Documented Photo Record when the crew leaves, and before-and-after blower-door numbers on every air-sealing job. Call (830) 243-6352 for a free estimate with a written price.