Blown-In Attic Insulation in New Braunfels, TX
Blown-in attic insulation is loose-fill material – cellulose or fiberglass – pneumatically installed to fill every gap, joist bay, and irregular corner that batt insulation typically misses. For most New Braunfels homes, it’s the fastest path to meaningful energy performance, and jobs are typically completed in a single day. At Topside Attic Insulation New Braunfels, we never blow our Attic Insulation services over an unsealed attic floor – air sealing of top plates, can lights, and penetrations happens first, every time, with before-and-after blower-door numbers published so you can see exactly what changed.
That sequence matters more than most homeowners realize. Blown-in insulation adds thermal resistance (R-value – the measure of how well a material slows heat transfer), but it does almost nothing to stop the air that carries heat and humidity into your living space. Seal the holes first, then add the insulation depth – that’s the order we work in on every job, and it’s why our results hold up over time rather than fading after the first Texas summer.
If you’re comparing estimates or just want to know what a job should cost before anyone shows up, call (830) 243-6352. A written price comes before any work starts – that’s not a sales line, it’s Haven Standard Clause 1.
This page covers blown-in specifically. For a broader look at all attic insulation options we install in the area, see our Attic Insulation in New Braunfels page.
When You Need Blown-In Attic Insulation
Blown-in insulation isn’t right for every situation, but for the majority of New Braunfels homes built before 2010, it’s exactly what the attic needs. These are the clearest signals.
- Your attic has less than R-38 of existing insulation. The Department of Energy recommends R-49 to R-60 for Climate Zone 2, which covers New Braunfels. Homes in Gruene, Creekside, and the older Hill Country Estates subdivisions commonly measure at R-11 to R-19 – installed decades ago and never updated. Blown-in is the most practical way to bring those numbers up without tearing out what’s already there.
- Your upstairs rooms run noticeably hotter than downstairs. When the second floor of a two-story home in Canyon Lake Road-adjacent neighborhoods reads 78°F while the downstairs thermostat sits at 72°F, attic heat gain is usually the cause. Thin or uneven insulation lets the roof deck radiate heat directly into the living space below.
- Your energy bills spike sharply in June through September. New Braunfels sits in a climate that stacks heating and cooling demand – mild winters, brutally hot summers, and humidity swings from the Guadalupe River corridor that make vapor management critical. If your July electric bill is climbing year over year with no obvious explanation, attic insulation depth is one of the first things worth measuring.
- You have batt insulation that’s fallen, compressed, or shows moisture staining. Fiberglass batts that have shifted off joists or absorbed moisture from an old roof leak lose most of their rated R-value. Blown-in cellulose from a manufacturer like GreenFiber or loose-fill fiberglass from Owens Corning can be installed over the damaged batts or, in severe cases, after removal – but the moisture source has to be resolved first.
- You’re adding square footage or converting a room below the attic. If a bedroom conversion or addition changes where conditioned space ends and unconditioned space begins, the insulation plane needs to move with it. Blown-in makes that transition easier than retrofitting cut batts around irregular framing.
- You’re buying or selling a home and the inspection flagged inadequate attic insulation. New Braunfels and the broader Comal County area have seen consistent buyer demand and tight inspection timelines. A blown-in job with a written scope and documented photo record gives the buyer something concrete – not just a receipt, but measurable proof the work was done correctly.
Our Blown-In Attic Insulation Process
Here’s exactly what happens from the first call to the final documentation. No surprises, no add-ons after work starts.
- Written assessment and upfront pricing before anything else. A technician inspects the attic – existing R-value, visible air leaks, joist spacing, soffit and ridge ventilation, any signs of moisture or pest activity. You receive a flat written price and a written scope of work before we schedule the crew. Under Haven Standard Clause 1, no work starts without your written approval of that price. If you have a competing estimate in hand, we’ll read it with you as part of a free second opinion – no pressure, just a side-by-side comparison.
- Air sealing – always before blown-in, never after. This is the step most contractors skip or offer as an optional upgrade. We treat it as a prerequisite. Two-part foam is applied to top plates (the framing members where interior walls meet the ceiling), recessed can lights, plumbing and electrical penetrations, and any other pathway where conditioned air escapes into the attic. The blower-door test – a pressurization reading that shows, in one number, how much air the building envelope is losing – is run before this step so we have a baseline.
- Post-sealing blower-door measurement. After air sealing is complete and before any insulation goes in, we run the blower-door test a second time. That number is recorded and included in your job documentation. If the sealing didn’t move the needle enough on a particularly leaky attic floor, we know before we cover the work with insulation. This is the published before-and-after reading you’ll see referenced in our documentation – not a marketing claim, an actual CFM50 figure tied to your specific home.
- Depth marker installation and machine-blown insulation. Depth markers (small rulers that sit vertically in the attic) are placed per manufacturer and IRC code requirements so the final depth is verifiable after the fact – by you, by an inspector, or by anyone else. Loose-fill material is then blown in to achieve the target R-value. For most New Braunfels attics targeting R-49, that means 16 to 18 inches of cellulose or 22 to 24 inches of fiberglass, depending on the product specified. We work from GreenFiber, Owens Corning, and Johns Manville depending on project specs – no proprietary product lock-in.
- Final inspection and documented photo record. Every job closes with a photo record – depth markers visible, coverage consistent, no compressed areas near soffits, no insulation blocking ventilation baffles. These photos are part of your job file and delivered before the crew leaves. You don’t have to ask for documentation; it’s built into how every job closes.
- Written warranty and 365-Day Done Right Promise. The written warranty is handed to you before the crew leaves. The 365-Day Done Right Promise is straightforward: if it’s not done right, we make it right. That applies to every job Topside Attic Insulation New Braunfels completes, without exception.
Before
AfterBlown-In Attic Insulation Pricing in New Braunfels
Most blown-in attic insulation jobs in New Braunfels run between $1,400 and $3,200 for a typical single-family home. The range is wide because the variables that drive cost – existing R-value, attic square footage, required depth, accessibility, and whether air sealing is included – vary significantly from house to house.
Here’s how those variables break down in practice:
- Attic square footage: A 1,200-square-foot attic costs less to insulate than a 2,400-square-foot one, even at the same target R-value. Most New Braunfels homes in the 1,800-to-2,400-square-foot range fall in the $1,600-to-$2,600 window for insulation only.
- Target R-value and current depth: If you’re starting at R-11 and need R-49, you’re adding more material than a home that already has R-30. That difference shows up directly in material cost.
- Air sealing scope: Attics with many recessed can lights (common in homes built in the 2000s in Copper Ridge, Gruene Estates, and similar subdivisions) take longer to seal than attics with minimal penetrations. Air sealing typically adds $300-$700 to the total, but it’s not optional in our process – it’s included in the scope and priced upfront.
- Attic accessibility and obstacles: Low-pitch roofs, HVAC equipment sitting in the attic, or limited access hatches require more setup time. These are flagged during the initial assessment and priced before work starts – no after-the-fact adjustments.
- Insulation removal: If existing insulation needs to come out first (rodent contamination, severe moisture damage, settled cellulose below the point of usefulness), removal is quoted separately. Removal jobs in New Braunfels typically run $800-$1,500 depending on volume and disposal logistics.
| Scenario | Typical Price Range |
|---|---|
| Blown-in only, 1,000-1,500 sq ft attic, adding to existing insulation | $1,400 – $1,900 |
| Blown-in with air sealing, 1,500-2,000 sq ft attic | $1,900 – $2,600 |
| Blown-in with air sealing, 2,000-2,600 sq ft attic | $2,400 – $3,200 |
| Removal and replacement with blown-in, any size | Add $800 – $1,500 to above |
These are honest ranges based on jobs we’ve completed in New Braunfels and Comal County. Your written estimate will be a flat number – not an hourly rate with open-ended labor, not a range. Call (830) 243-6352 and we’ll schedule the assessment. The estimate is free, the price is written, and nothing starts until you approve it.
FAQs – Blown-In Attic Insulation
How much does blown-in attic insulation cost in New Braunfels?
Most blown-in insulation jobs in New Braunfels cost between $1,400 and $3,200 for a typical single-family home, depending on attic size, target R-value, and whether air sealing is included. Homes with large attics or significant air leak work will land toward the higher end of that range. Your written estimate from Topside Attic Insulation New Braunfels will be a flat number, not an estimate-plus-surprises. Call (830) 243-6352 for a free assessment and written price.
Can you blow insulation over existing insulation, or does the old stuff need to come out first?
In most cases, blown-in can go directly over existing Attic Batt Insulation – that’s one of its practical advantages. The exception is when the existing material is contaminated (rodent droppings, mold, or heavy moisture damage), compressed to a point where it’s lost meaningful R-value, or contains materials that should be removed for health or code reasons. During the initial assessment, we measure the existing depth and condition and tell you plainly which situation you’re in. If removal is warranted, it’s quoted separately as a flat price before any work starts.
What R-value does my New Braunfels attic need?
New Braunfels falls in DOE Climate Zone 2, where the recommended attic insulation level is R-49 to R-60. Many older homes in the area – particularly those built before 2000 in neighborhoods like Hill Country Estates, Gruene, and areas off Common Street – were originally insulated to R-11 or R-19 standards that were code at the time but don’t hold up against current Texas summers. We measure the existing depth and translate it to R-value during the assessment so you have an exact number, not an estimate.
Is blown-in insulation better than batt insulation for my attic?
For most attic floor applications in New Braunfels, blown-in outperforms batt insulation because it conforms to irregular joist spacing, fills gaps around pipes and wiring without cutting, and achieves consistent coverage across the full attic floor. Batts, when installed correctly, perform well – but they’re more dependent on careful installation, and in retrofit situations they frequently leave gaps that blown-in material fills naturally. The material choice matters less than the air sealing that happens before either type goes in. For a broader comparison of insulation types, see our home page for the full service overview.
How long does a blown-in attic insulation job take in New Braunfels?
Most blown-in jobs are completed in a single day, including air sealing. Smaller attics (under 1,500 square feet) with straightforward access often run four to six hours from setup to final documentation. Larger attics or those with significant air sealing scope can run a full eight-hour day. We don’t leave a job until the depth markers are verified, the photo record is complete, and your written documentation is in hand.
Why Topside Attic Insulation New Braunfels
Since 2016, under The Haven Standard, we’ve completed work on more than 9,000 homes – every one with a written price before work started and a documented record when the crew left. That’s not a volume claim; it’s a description of the process every single job runs through, regardless of size.
The thing that separates our blown-in work from most contractors in the New Braunfels market isn’t the material – GreenFiber, Owens Corning, and Johns Manville are all available to any contractor who orders them. It’s the sequence. Air sealing first, verified by a blower-door test, then insulation – with Attic Baffles & Ventilation Prep handled as needed. And then a second blower-door reading after sealing so you have a documented before-and-after number for your home’s specific building envelope – not a projected savings estimate, an actual measured result.
Wes Okafor leads every job under the same standard: a written price before anyone lifts a tool, background-checked technicians you can identify by name before they arrive, and a live person answering calls around the clock. If something isn’t right within 365 days of completion, we make it right. That’s the Done Right Promise, and it applies to every job without exception.
New Braunfels homeowners in Canyon Lake Road corridors, Gruene, Creekside, and Copper Ridge deal with attic conditions that are specific to this area – high summer radiant heat loads, occasional humidity intrusion from the Guadalupe corridor, and older housing stock that was never insulated to current standards. We’ve seen these attics enough to know what they need before we quote the job.
For the full picture of attic insulation services available in this area, including batt insulation, radiant barrier installation, and insulation removal, visit our Attic Insulation in New Braunfels page.
Ready for a written price? Call (830) 243-6352. The assessment is free, the estimate is written, and nothing starts until you say go.
Written by Wes Okafor, Owner at Topside Attic Insulation New Braunfels, serving New Braunfels since 2016.