Fast, Reliable Attic Insulation Across Selma
Attic insulation in Selma typically runs $1,800-$4,200 for a full retrofit, with most jobs completed in one day. Our crews are dispatched from the San Antonio office and usually arrive in Selma within 45 minutes, including the neighborhoods along Lookout Road, the subdivisions near Evans Road, and the newer developments off I-35. If your home was built during the 2005-2015 building boom, there’s a strong chance your builder-grade insulation has settled well below its original rating and your top plates were never sealed. Call (830) 529-7780 and we’ll give you a written price before any work starts.
Why Topside Attic Insulation Boerne Is Selma’s Preferred Attic Insulation Company
We’ve worked the same tract-home floor plans across Selma enough times to know where the builder cut corners before we pull the attic hatch. Our Attic Insulation team has documented photo records from jobs in Tuscany Heights, The Ridge at Lookout, and other I-35 corridor subdivisions showing the same pattern: R-30 blown-in fiberglass settled to R-19 or worse, zero air-sealing at top plates, and soffit vents choked by insulation that was blown in without baffles.
Selma homeowners review us on the same platforms they use to research any contractor, and they consistently note two things: we show up when we said we would, and we leave behind paperwork that proves what changed. The 365-Day Done Right Promise applies to every Selma job, backed by a written scope and written warranty delivered before the crew starts.
Calls are answered by a live person 24/7. No voicemail loops. No callback windows measured in business days. If you’re in Selma and your summer cooling bill keeps climbing, we’ll get someone out fast.
Our Attic Insulation Services in Selma
Blown-In Attic Insulation
We blow loose-fill fiberglass or cellulose to precise depth markers across the attic floor, compensating for the low-heel open-web trusses that dominate Selma’s 2005-2015 housing stock. Most Selma homes need true R-38 to perform in Climate Zone 2, not the settled R-19 that’s common now. We use Owens Corning L77 or Johns Manville Climate Pro in Selma attics, matched to the cavity geometry we find. Every blown-in job includes air-sealing of top plates and penetrations first - we don’t blow insulation over a leaky ceiling plane.
Attic Batt Insulation
Batt fits a minority of Selma homes: typically additions with conventional rafters, knee walls in bonus rooms, or vertical gable-end walls where loose-fill won’t stay put. We stock Owens Corning R-30 and R-38 batts sized for standard framing. In Selma’s newer construction, batts are most often used for spot repairs or to insulate attic access panels after the main floor has been blown. We cut batts to fit without compression gaps, which is harder than it sounds in truss bays that weren’t framed to exact dimensions.
Attic Insulation Top-Up
This is our most common Selma service. The original blown-in fiberglass in your 2005-2015 tract home started at R-30 under the 2006/2009 IECC, but fiberglass settles 20-40% over a decade-plus. We find R-19 at center, R-13 or less at the eaves. A top-up brings the entire attic to uniform R-38 without removing what’s there, provided the existing material isn’t contaminated. We air-seal first, install baffles at every soffit vent, then blow new material over old. Most Selma top-ups run $1,800-$2,800 and are done in a single morning.
Attic Insulation Replacement
When fiberglass has been compromised by rodent activity, water damage from roof leaks, or heavy settling that creates hard-packed mats, we remove it entirely. Replacement in Selma means pulling the old material, HEPA-vacuuming the attic floor, sealing all penetrations, installing baffles, and blowing new insulation to full depth. Full replacements in Selma’s typical 2,000-2,800 square foot homes range from $3,200-$4,200. You get before-and-after photos, blower-door numbers if applicable, and a written record of every step.
Attic Baffles & Ventilation Prep
In Selma, this isn’t optional. The pre-IRC-2012 low-heel open-web trusses used in nearly every subdivision here leave almost no vertical cavity at the eaves. Without baffles, blown insulation stacks over the soffit vents and chokes airflow, creating hot spots that accelerate shingle degradation and moisture buildup. We install Owens Corning Raft-R-Mate or equivalent baffles at every rafter bay before blowing, maintaining the ventilation path from soffit to ridge. Every Selma job gets this treatment. We’ve never found a 2005-2015 tract home here that didn’t need it.
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 Selma
We source materials from Owens Corning, Johns Manville, and Demilec, with no proprietary lock-in that limits what’s right for your home. For Selma’s Climate Zone 2 conditions, we typically specify Owens Corning L77 loose-fill fiberglass or Johns Manville Climate Pro for blown applications, and Demilec open-cell spray foam when we’re sealing and insulating a conditioned attic in a single step. We keep common baffle sizes and insulation depths stocked for quick turnaround on Selma jobs, so we’re not waiting on a distributor run while your attic sits open.
Common Attic Insulation Problems We See in Selma Homes
- Settled builder-grade fiberglass. The R-30 blown-in installed under 2006/2009 IECC code minimums has compressed over 10-20 years to roughly R-19 at center, with eaves often reading R-13 or lower. The homeowner doesn’t notice gradually - the bill just keeps climbing.
- Choked soffit vents. Original installers in Selma’s 2005-2015 subdivisions rarely used baffles. Insulation drifts to the eaves and blocks the ventilation intake, creating stagnant 150°F+ air pockets that radiate heat downward through the ceiling plane.
- Unsealed top plates and penetrations. Climate Zone 2’s summer attic air finds every gap at the ceiling plane. The February 2021 Winter Storm Uri freeze exposed how poorly sealed Selma’s newer construction was - burst pipes in homes less than 15 years old traced directly to air leakage paths that a proper attic seal would have closed.
- Low-heel truss geometry. The open-web trusses with minimal heel height used across Selma’s tract subdivisions make full-depth insulation at the eaves physically impossible without baffles. It’s the same problem on Evans Road as it is on Lookout Road.
Pricing for Attic Insulation in Selma, TX
Most attic insulation jobs in Selma’s typical 2,000-2,800 square foot tract homes run between $1,800 and $4,200, depending on what we find when we open the hatch. Here’s how that breaks down:
| Service | Typical Range in Selma |
|---|---|
| Attic Insulation Top-Up (air-seal + baffles + blow to R-38) | $1,800 - $2,800 |
| Attic Insulation Replacement (remove old, seal, baffle, blow new) | $3,200 - $4,200 |
| Attic Baffles & Ventilation Prep only | $400 - $700 |
| Air Sealing + Baffles (no new insulation) | $900 - $1,400 |
What moves the number: attic square footage, current insulation condition, whether we need to remove old material, accessibility (some Selma homes have hatches in closets with tight clearances), and whether we’re also sealing ductwork or installing a radiant barrier. We give you a flat written price before any work starts - Haven Standard Clause 1 - and we’ll provide a Free Second Opinion on any competing written estimate you bring us. Call (830) 529-7780 for your exact number.
We Also Serve Cities Near Selma
Our crews work the full I-35 and 281 corridors, including Selma and the surrounding communities of Boerne, Fair Oaks Ranch, Scenic Oaks, and Helotes. Dispatch is coordinated from our San Antonio office, so we’re never routing crews from distant hubs.
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
No, R-30 is almost certainly not still fine. The blown-in fiberglass installed in Selma’s 2009 construction under 2006/2009 IECC code minimums has settled 20-40% over 15 years, and the original install likely measured poorly at the eaves to begin with. We regularly find R-19 at center and R-13 or less where the low-heel trusses pinch the cavity. Call (830) 529-7780 for a free inspection and written price - we’ll measure what you actually have.
Because Selma’s subdivisions were platted in 2005-2015 with pre-IRC-2012 open-web roof trusses and low heel heights, so installers working any street here hit the same eaves-depth-vs-soffit-ventilation conflict on nearly every house. The vertical cavity at the eave is minimal; without baffles, insulation stacks over the soffit vent and chokes airflow. In cities with older conventionally framed roofs or post-2012 truss designs, this conflict is far less common. Baffling is mandatory in Selma, not optional.
Uri exposed that Selma’s newer construction was poorly air-sealed at the ceiling plane. Homes less than 15 years old saw burst pipes because attic air leakage paths allowed freezing air to penetrate wall cavities and soffit bays. The insulation depth was technically present but thermally bypassed by gaps at top plates, can lights, and duct chases. Post-Uri, we’ve done dozens of Selma retrofits where air-sealing was the critical fix, not just more insulation.
It’s primarily a cooling play in Selma. ASHRAE Climate Zone 2 means cooling loads dominate 8+ months, and attic cavities here exceed 150°F regularly. A proper R-38 ceiling with sealed top plates reduces the temperature differential across your ceiling plane, which directly lowers air conditioning runtime. Winter savings exist but are secondary. Most Selma homeowners see their most noticeable bill reduction in July and August.
We handle the full sequence, and we won’t do it any other way. Air-sealing first, then baffles, then insulation. Sealed first, then insulated - that’s the order. Our crew was called out to a 2010-built 3-bedroom in the Tuscany Heights subdivision off Lookout Road where the homeowner’s summer cooling bills had crept up for three straight years and a home inspector flagged settled insulation in the attic. We found the original builder-grade blown-in fiberglass had settled from R-30 down to roughly R-19 at the center and far worse at the eaves, where the low-heel open-web trusses left almost no cavity between the top plate and the roof deck. We pulled the matted fiberglass, air-sealed the top plates and can lights, installed Owens Corning Raft-R-Mate baffles at every rafter bay, and blew in Owens Corning L77 to a true R-38 - the same fix we run on nearly every tract home in this corridor. Call (830) 529-7780 to schedule.
Ready to fix what the builder skipped? Call (830) 529-7780 for a free estimate. We’ll inspect your attic, measure what you have, and give you a flat written price before any work starts - guaranteed under Haven Standard Clause 1. Every job ends with a Documented Photo Record and, on applicable work, before-and-after blower-door numbers so you can see the performance change you paid for.
Written by Wes Okafor, Owner at Topside Attic Insulation Boerne, serving Selma and the surrounding communities since 2016.