Fast, Reliable Attic Insulation Across Converse
Attic insulation in Converse typically costs between $1,800 and $4,500 for a full retrofit, with most top-up jobs landing in the $1,200-$2,800 range. Crews can usually inspect and quote same-day, and work starts within 48 hours once the written price is approved. Call (737) 227-6219 to schedule - a live person answers, even at 11 PM on a Sunday.
We know Converse’s housing stock because we’ve crawled through hundreds of its attics. The slab-on-grade tract homes near the Randolph corridor, the low-pitch hip roofs around FM 78, the 1990s builds tucked between Converse Parkway and Gibbs Sprawl - we’ve measured the settled fiberglass, documented the blower-door readings, and written the scopes. Our crews dispatch from the San Antonio office and carry the baffles, soffit vents, and blown-in equipment needed for Converse’s specific retrofit conditions. No callback windows. No “we’ll check availability.”
Why Topside Attic Insulation Canyon Lake Is Converse’s Preferred Attic Insulation Company
We’ve sealed and insulated more than 9,000 homes since 2016, and a disproportionate share of those have been in Converse. The reason is straightforward: this market has a specific problem - original 1980s blown-in fiberglass settling to R-15 or below in rental properties that cycle through military families on short PCS assignments - and we publish the before-and-after blower-door numbers that prove whether the fix actually worked.
Our Converse customers leave three-star reviews when we find something unexpected in the attic. They leave five-star reviews when we document it with photos, explain it in the written scope, and fix it under the 365-Day Done Right Promise. Both review types are public. We don’t filter them.
Response time to Converse neighborhoods averages 35 minutes from dispatch to arrival for scheduled inspections. Emergency calls - attics with active leaks, failed HVAC in 100°F heat - get same-day response. The crew that shows up is background-checked, uniformed, and named in the text you receive when they’re en route.
Local knowledge matters here in a way it doesn’t in newer suburbs. Converse’s 1978-2000 tract homes have 2×4 walls, vented attics with minimal soffit intake, and top plates that were never sealed during original construction. A technician who hasn’t worked this housing stock will blow insulation over unsealed penetrations and call the job complete. We don’t. Our Attic Insulation protocol requires air sealing before any insulation touches the attic floor - that’s Haven Standard Clause 1, and it’s non-negotiable.
Our Attic Insulation Services in Converse

Blown-In Attic Insulation
Blown-in fiberglass or cellulose is the right fix for most Converse attics because the existing material has settled, compressed, or been disrupted by HVAC work. We use Johns Manville, Knauf, and GreenFiber products - no proprietary lock-in - and we don’t blow until the top plates, can lights, and wire penetrations are sealed. In a typical 1,600-square-foot Converse ranch near Woodlake, blown-in to R-38 runs $2,200-$3,800 including air sealing. The blower-door test before and after shows the actual leakage reduction, not just the added inches.

Attic Batt Insulation
Batt insulation - pre-cut fiberglass or mineral wool panels - makes sense in Converse homes with walkable attic decks and minimal HVAC obstructions. Rockwool batts handle the San Antonio basin’s 150°F peak attic temperatures without degrading. We see batt jobs most often in Converse’s newer construction, post-2000 builds near Cibolo Creek, where the original insulation was installed to a higher standard and only needs targeted replacement. Batt installation in these homes typically ranges $1,800-$3,200.

Attic Insulation Top-Up
This is the dominant service in Converse, and for a specific reason. The original 1980s blown-in fiberglass in Randolph-era rentals has settled to R-15 or below - sometimes R-11 - and the deficit goes undetected because short-term military tenants rarely escalate high utility bills to out-of-area landlords. We pull the attic hatch, measure what’s there, and top to R-38 with blown cellulose or fiberglass after sealing air leaks. Most Converse top-ups run $1,200-$2,400. The work takes one day. The blower-door documentation goes to the homeowner before the crew leaves.

Attic Insulation Replacement
Full replacement is necessary when existing insulation is contaminated, water-damaged, or so compressed that topping up would bury the problem. In Converse, we see this most often after roof leaks near the end of a shingle’s life, or when rodent activity has rendered fiberglass unusable. We remove, dispose, clean the deck, seal all penetrations, and reinstall to modern R-38 minimums. Replacement jobs in Converse’s typical 1,400-1,800 square foot homes range $3,200-$5,500 depending on access difficulty and contamination level.

Attic Baffles & Ventilation Prep
Converse’s 1978-2000 tract homes were built with undersized soffit vents that choke intake airflow. Without baffles - the cardboard or foam channels that keep insulation from blocking the vent - a top-up traps hot attic air against the new material and the cooling load barely moves. We install baffles at every soffit vent before blowing insulation, ensuring the attic breathes. This step is included in our standard scope, not sold as an add-on. In low-pitch hip roofs common near Live Oak Road, this prep is essential; the crew belly-crawls the ridge line, and crushing existing batts while routing around flex duct is a real risk without proper ventilation planning.

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.
- 3
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 Converse
We source from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no exclusive supplier agreements that limit what’s right for your home. For Converse’s specific conditions, we typically specify Knauf EcoFill blown fiberglass or GreenFiber cellulose for top-ups, and Rockwool batts where fire resistance and high-temperature stability matter. We stock local inventory for Converse jobs, so material delays don’t push your start date. The brand names go in the written scope before work starts, not after.
Common Attic Insulation Problems We See in Converse Homes

- Settled R-15 fiberglass hiding in plain sight. Original 1980s blown-in has compressed to half its labeled R-value or worse, and decades of short-PCS military tenant turnover mean no one escalated the utility bills to the landlord. We find this during pre-sale inspections, when the deficit finally surfaces.
- Crushed batts under flex duct in low-pitch hip roofs. Converse’s slab-on-grade tract homes have almost no walkable deck. Crews - ours included - belly-crawl the ridge line, and without careful routing around HVAC lines, existing insulation gets flattened to near-zero effectiveness.
- Unsealed top plates bleeding 150°F attic air into conditioned space. The pressure boundary was never completed during original construction. Open chases let superheated attic air straight into the return, so the homeowner blames the insulation layer for what is actually an air-sealing failure.
- Blocked soffit vents turning attics into solar ovens. Undersized 1980s soffit vents, often painted over or insulated shut, eliminate the intake airflow that vented attics require. Without baffles and vent clearance, new R-38 material sits in a stagnant 150°F environment and underperforms by 30% or more.
Pricing for Attic Insulation in Converse, TX
Most attic insulation jobs in Converse homes of 1,400-1,800 square feet run between $1,800 and $4,500. Here’s how the ranges break down by job type:
| Service | Typical Range in Converse |
|---|---|
| Attic Insulation Top-Up (to R-38) | $1,200 - $2,400 |
| Blown-In Attic Insulation (full, with air sealing) | $2,200 - $3,800 |
| Attic Batt Insulation (replacement) | $1,800 - $3,200 |
| Attic Insulation Replacement (remove + reinstall) | $3,200 - $5,500 |
| Attic Baffles & Ventilation Prep (add-on to above) | $400 - $800 |
What moves the number: attic square footage, existing material condition, access difficulty (low-pitch hip roofs take longer), and whether air sealing is required before insulation. Every job gets a Written Price Before Any Work Starts - Haven Standard Clause 1 - with the scope, warranty, and blower-door target documented in writing before anyone lifts a tool. Free Second Opinion on any written estimate from another contractor. Call (737) 227-6219 for your exact number; estimates are free.
We Also Serve Cities Near Converse

Our crews work throughout the northeast San Antonio corridor, including Converse, Universal City, Schertz, Cibolo, and Bulverde. Dispatch and scheduling are coordinated from our San Antonio office, with local crews serving each market. The housing stock differs - Schertz has more 2000s-era construction, Universal City more mid-century ranch - and our scopes adjust accordingly. Same written-price protocol, same blower-door documentation, same 365-Day Done Right Promise in every city.
Serving Converse, TX - Our Local Coverage Area
We’re based in the Converse 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 Converse

Yes, with written authorization from the property owner or property manager. We require this for all rental work in Converse, and we email the scope and price to the landlord before scheduling. The tenant can be present for access, but the approval must come from the owner. If you’re the tenant and your utility bills are running $280+ in July, we recommend forwarding our estimate to your landlord - the payback on a top-up is typically under four years in Converse’s climate, and we document the pre-existing condition with photos.
Because insulation doesn’t fix ventilation, and Converse’s 1978-2000 tract homes were built with undersized soffit vents that choke intake airflow. Without baffles to keep insulation clear of the vents, the new material blocks what little intake existed, trapping superheated air. The fix is ventilation prep - baffles at every soffit, often combined with additional vent installation - before or during the insulation work. We measure attic temperature and airflow during our inspection and include the ventilation scope in the written price if needed.
Yes, and increasingly so. Pre-sale home inspections in Converse now regularly flag settled R-15 or below attic insulation as a deficiency, especially since the February 2021 freeze exposed how poorly thin-wall construction performs. Our blower-door documentation gives buyers a verified number - 4,200 CFM50 before, 2,100 after - rather than a vague “energy efficient” claim. The cost typically recovers at sale, and the inspection contingency clears faster. Call (737) 227-6219 to schedule before your listing date.
We install Knauf EcoFill blown fiberglass, GreenFiber cellulose, and Rockwool batts for most Converse jobs, with CertainTeed and Johns Manville products specified where the application demands it. No proprietary lock-in - the brand goes in your written scope before work starts, and we source from local inventory to avoid delays. The material choice depends on your attic’s condition, fire-resistance requirements, and whether we’re matching existing insulation or doing full replacement.
Yes. The Uri storm exposed how poorly Converse’s 2×4 walls and R-19-or-less attics perform during hard freezes, and homeowners here have been upgrading insulation with both heating and cooling in mind ever since. The economic driver is still summer - Converse attics hit 150°F routinely - but the dual-season value of a properly sealed and insulated envelope is now part of the local conversation. Our scopes specify R-38 minimums and complete air sealing, which moves the needle on both seasons.
Ready to see what your attic actually measures? Call (737) 227-6219 for a free estimate. A live person will answer, schedule your inspection, and you’ll have a Written Price Before Any Work Starts - with documented photos, blower-door targets, and the 365-Day Done Right Promise - before the crew arrives.
Written by Wes Okafor, Owner at Topside Attic Insulation Canyon Lake, serving Converse and the northeast San Antonio corridor since 2016.