Fast, Reliable Attic Insulation Across Selma
Most attic insulation jobs in Selma run $1,800-$4,200 depending on square footage and whether air sealing is needed first, and our crews typically schedule within 48 hours of your call. We’re familiar with the single-vintage tract homes that dominate Selma, from the neighborhoods off Evans Road to the subdivisions near the Forum shopping corridor, and we know how the 2000s-2010s builder-grade installs have held up under South Texas heat. Dispatch and scheduling are coordinated from our San Antonio office, but the crews serving Selma live and work locally. Call (830) 549-6646 for a written price before any work starts.
Why Topside Attic Insulation Seguin Is Selma’s Preferred Attic Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a concentrated share of that work has been right here in Selma’s I-35 corridor. The reviews we get from Selma homeowners tend to mention the same thing: we show the blower-door numbers, not just promise results. Our response time to Selma neighborhoods averages same-day or next-day for standard appointments, and we text when the technician is en route so you’re not waiting on a four-hour window.
What separates us in Selma specifically is that we recognize the pattern. Nearly every home in this city went up in the same production-builder wave with the same code-minimum R-30 blown fiberglass and the same 15-25 years of settling. We don’t need to guess what’s in your attic. We’ve already measured the compression, traced the unsealed top plates, and documented the blocked soffit vents in dozens of homes just like yours off Lookout Road and Schertz Parkway.
Our Attic Insulation in Selma work follows The Haven Standard: written price before any work starts, documented photo record when we leave, and before-and-after blower-door readings on every air-sealing job. Wes Okafor has built this operation on the principle that evidence beats enthusiasm every time.
Our Attic Insulation Services in Selma
Blown-In Attic Insulation
Blown-in fiberglass or cellulose is the standard retrofit for Selma’s slab-on-grade tract homes because it fills irregular joist bays and covers the settled builder-grade layer beneath. We source from Owens Corning, Johns Manville, and GreenFiber, so we’re not locked into a single product line. In Selma’s 150°F-plus summer attics, proper depth matters more than brand, and we measure in inches, not bags. Most blown-in jobs in a 1,800-square-foot Selma home run $2,200-$3,800 including air sealing of top plates and can-light penetrations.
Attic Batt Insulation
Batt insulation, fiberglass or mineral wool pre-cut to joist width, works well in Selma homes with accessible attic storage platforms or defined knee-wall spaces where blown material would drift. We use batt selectively, typically in combination with blown-in for the main attic field. The key in Selma’s climate is avoiding compression, which kills R-value fast when summer heat is this relentless. We don’t stuff batts into cavities they’re not sized for.
Attic Insulation Top-Up
This is our most common Selma service, and for good reason. The original R-30 blown fiberglass in your 2005-2015 tract home has settled to something closer to R-15 or R-19, and your HVAC is paying the difference every July afternoon. A top-up restores depth without full removal, assuming the existing material is clean and dry. Most Selma top-ups run $1,800-$2,800 for a typical 1,600-2,200 square foot home. We air-seal first, always. Blowing new insulation over an unsealed attic floor is something we simply don’t do.
Attic Insulation Replacement
When the original fiberglass is contaminated, water-stained, or disrupted by prior work, we remove and replace. This is more common in Selma than you’d think, especially in homes where roof leaks or rodent activity went unaddressed. Full replacement with air sealing and new blown-in runs $3,500-$5,500 in most Selma homes. We document the removal with photos, seal every penetration, and install baffles at the eaves before the new material goes in.
Attic Baffles & Ventilation Prep
Soffit ventilation gets blocked in Selma attics more often than homeowners realize. The original builder-grade installs rarely included proper baffles, and over years of settling, insulation drifts into the eaves and chokes airflow. We install rigid or foam baffles at every eave to maintain the intake path, then blow insulation to full depth without covering the vent. In Selma’s seven-month cooling season, an attic that can’t ventilate is an attic that stays above 140°F until November. Baffle installation as part of a larger job typically adds $400-$700.
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.
Before
AfterTrusted Brands We Service in Selma
We stock and install Owens Corning, Johns Manville, and GreenFiber products for Selma jobs, with no proprietary lock-in that limits your options. Owens Corning remains the standard for blown fiberglass in this market; Johns Manville offers competitive density and low dust for occupied homes; GreenFiber cellulose performs well for homeowners prioritizing recycled content and sound attenuation. We keep common R-values and depths on hand so we’re not waiting on delivery to finish your job. If you’ve got a preference, we’ll source it. If you don’t, we’ll recommend based on what we measure in your attic.
Common Attic Insulation Problems We See in Selma Homes
- Settled builder-grade blown fiberglass. The R-30 stamp on your 2008 build meant something at closing. Fifteen years of vibration, foot traffic from cable installers, and natural compression have cut that in half. We measure with a depth gauge and a thermal camera, then show you the numbers.
- Blocked soffit vents from insulation drift. Selma’s slab-on-grade tract homes with shallow-pitch roofs are especially prone to this. No baffles, no airflow, and the attic becomes a solar collector from May through October. Your AC runs nonstop because the heat has nowhere to go.
- Unsealed top plates and penetrations. Every recessed can light, every wire hole, every plumbing stack in your Selma attic is a direct path for conditioned air to escape into the vented space. We seal these with fire-rated foam and rigid covers before any insulation goes in. The blower-door test proves the difference.
- Code-minimum walls doing double duty near I-35. Homes off the commercial corridor near Evans Road and Lookout Road deal with highway noise that R-13 fiberglass batts were never designed to address. Dense-pack cellulose in those exterior walls cuts both heat transfer and decibel levels. We’ve measured 8-12 dB reductions on the traffic-facing side.
Pricing for Attic Insulation in Selma, TX
Here’s what attic insulation costs in Selma’s market right now, based on the single-story slab-on-grade homes that make up most of the city’s housing stock:
| Service | Typical Range (Selma) |
|---|---|
| Attic Insulation Top-Up (air seal + blown-in) | $1,800 - $2,800 |
| Full Blown-In Attic Insulation (new install, air sealed) | $2,200 - $3,800 |
| Attic Insulation Replacement (remove + replace) | $3,500 - $5,500 |
| Attic Baffles & Ventilation Prep (add-on) | $400 - $700 |
| Exterior Wall Dense-Pack (sound/thermal, per sq ft) | $2.50 - $4.00 |
What moves you within these ranges: attic square footage, accessibility, whether we need to remove existing material, and the extent of air sealing required. Every job gets a written price before any work starts, no exceptions. We also offer a Free Second Opinion on any written estimate you’ve already received, bring it in and we’ll review it with you line by line. Call (830) 549-6646 to schedule.
We Also Serve Cities Near Selma
Our crews work throughout the northeast San Antonio corridor, including Selma, Seguin, New Braunfels, Cibolo, and Schertz. The building stock and climate conditions are similar across these markets, though each city has its own vintage mix and local code history. We adjust our approach accordingly.
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 - Attic Insulation in Selma
Yes. The builder-grade R-30 blown fiberglass installed during Selma’s construction boom has settled measurably over 15-25 years, and most attics we test are performing closer to R-15 or R-19. We verify with a depth gauge and thermal imaging, then show you exactly what we found. Call (830) 549-6646 for a written assessment, estimates are free.
Attic insulation alone won’t block highway noise, but dense-pack cellulose in your exterior walls will. We’ve installed GreenFiber dense-pack in dozens of Selma homes near the I-35/Loop 1604 interchange, and homeowners consistently report 8-12 dB reductions on the traffic-facing side. The thermal upgrade is standard; the sound attenuation is the benefit that sells itself once you feel the difference. Call (830) 549-6646 and we’ll assess your wall cavities.
Because your attic is likely hitting 150°F or higher, and underinsulated or unsealed attics transfer that heat directly into your conditioned space faster than your AC can remove it. In Selma’s seven-month cooling season, this doesn’t just raise your electric bill, it shortens compressor life. We measure the attic temperature and the blower-door leakage, fix the envelope, and show you the before-and-after numbers. Most homeowners see run-time reductions of 30-50% after proper air sealing and insulation restoration.
The freeze didn’t change the insulation itself, but it exposed how little protection code-minimum R-30 provides when temperatures drop below 20°F for multiple days. We’ve done more replacement and upgrade work in Selma since 2021 than in the five prior years combined. Homeowners who lived through that week don’t want to rely on the same builder-grade layer again. We document the existing condition, quote the upgrade, and guarantee the work under our 365-Day Done Right Promise.
We start with a blower-door test to measure how much conditioned air your home is losing, then seal every top plate, can light, wire penetration, and plumbing stack with fire-rated materials. Next we install baffles at the eaves to protect soffit ventilation, then blow new insulation to proper South Texas depth over the sealed attic floor. For homes near I-35, we often dense-pack the highway-facing exterior walls. You get a written scope, documented photos, and before-and-after blower-door readings. The whole process typically takes one day for a standard Selma single-story. Call (830) 549-6646 to book.
Written by Wes Okafor, Owner at Topside Attic Insulation Seguin, serving Selma since 2016.