Insulation Company in New Braunfels, TX
New Braunfels insulation work sits at the intersection of two very different housing stocks: 19th-century limestone and fachwerk homes downtown, and the fast-expanding 2000s-2020s subdivisions spreading toward Gruene and Vintage Oaks. The heat and humidity here don’t treat those homes the same way, which means the right insulation choice depends on the house, not just the square footage. We’re Thistledown Insulation, a Cedarwell-family company, and we approach every New Braunfels project with a written price before work begins and a crew that treats your home like it’s our own. Call (903) 437-9164 and a live person answers, any hour.
Why New Braunfels Homes Are Different
New Braunfels sits where the Hill Country heat meets river humidity. The Guadalupe and Comal Rivers push dew points up through much of the year, which means insulation here has to handle two jobs at once: blocking radiant attic heat that climbs past 140°F in July, and reducing hidden condensation that can form inside walls and attic cavities. That combination is rare. A product that performs well in dry West Texas heat can struggle in New Braunfels’s damp air, so we match insulation type to the specific house.
The housing stock sharpens that challenge. Historic limestone and fachwerk buildings near downtown have thick walls but almost no modern attic insulation. The 1950s-80s brick ranches that fill established neighborhoods often carry original batts that have compressed and blackened under decades of heat. Newer production homes in areas like Gruene and Vintage Oaks typically meet code minimums and nothing more, leaving rooms over garages and west-facing walls noticeably warmer by mid-afternoon. Crews who work New Braunfels regularly look for what we call “Texas attic melt”: old fiberglass batts in 1970s-era neighborhoods like Oakwood Estates and Castle Ridge that were rated R-11 when installed and now perform closer to R-4. That’s not a guess; it’s what we see when we lift the attic hatch.
Our Main New Braunfels Services
Most New Braunfels homeowners call us about one of two things: replacing or topping up attic insulation, or using spray foam to seal air leaks and add R-value where batts can’t reach. Each has its own dedicated New Braunfels page below.
Attic Insulation in New Braunfels
Attic insulation in New Braunfels usually means either removing degraded batts and starting fresh, or adding blown-in coverage on top of existing material to reach an appropriate R-value for this climate. We work with brands like Owens Corning, Johns Manville, and GreenFiber, and we choose the product based on what’s already in your attic, how your home is built, and whether pets or children will be home during the job. In homes with original 1970s insulation, removal and replacement often makes more sense than layering over material that’s already failed. We’ll tell you which path we recommend and why, in writing, before anyone starts. Read more on our Attic Insulation in New Braunfels page.

Spray Foam Insulation in New Braunfels
Spray foam earns its keep in New Braunfels by sealing the gaps that let humid outside air into attic and wall cavities. In river-adjacent neighborhoods, that air-sealing matters as much as the R-value because it reduces the condensation risk that comes with high dew points. We install open-cell and closed-cell foam from Demilec and Icynene, and we’ll recommend the right one for your roofline and budget. Shoe covers go on at the front door, drop cloths protect the hallway to the attic access, and we leave a photo of the clean-up before we go. Details are on our Spray Foam Insulation in New Braunfels page.

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.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in New Braunfels
We install insulation from Owens Corning, Johns Manville, GreenFiber, Demilec, and more, so the product in your attic matches your home’s construction and your family’s needs. Where a pet-safe option exists, we’ll offer it. New Braunfels jobs are stocked from our San Antonio office, which keeps scheduling tight. See the full our brands list.
Pricing for Insulation Company in New Braunfels, TX
| Service | Typical range in New Braunfels |
|---|---|
| Attic insulation audit and assessment | $150 – $350 |
| Blown-in fiberglass attic insulation (1,500 sq ft) | $1,800 – $3,400 |
| Blown-in cellulose attic insulation (1,500 sq ft) | $1,900 – $3,600 |
| Batt insulation replacement (1,500 sq ft attic) | $2,200 – $4,000 |
| Attic insulation removal and disposal | $900 – $2,100 |
| Air sealing package (attic floor penetrations) | $500 – $1,400 |
| Open-cell spray foam attic (1,500 sq ft) | $4,500 – $8,500 |
| Closed-cell spray foam attic (1,500 sq ft) | $6,800 – $12,500 |
| Rim joist spray foam sealing | $1,200 – $2,800 |
| Spray foam wall cavity insulation (per 100 sq ft) | $800 – $1,900 |
What pushes New Braunfels prices up is usually access: older downtown homes with tight attic hatches and steep stairwells take longer, and removal of failed 1970s batts adds a disposal step. Whatever the number, you’ll have it in writing before we touch a rafter. That’s not an estimate range; it’s your exact price.
Neighborhoods We Serve in New Braunfels
Our crews work across New Braunfels, from the limestone homes near downtown to the newest streets going in around Gruene and Vintage Oaks. We know the difference between a 1900s attic and a 2020s attic, and we stock for both.
- Gruene
- Vintage Oaks
- Oakwood Estates
- Castle Ridge
- Downtown New Braunfels
Most New Braunfels appointments can be scheduled within a few business days, and emergency calls are answered by a live person around the clock.
Service Area – Cities Near New Braunfels
Along with New Braunfels, our crews regularly serve Cibolo, TX, San Antonio, TX, Boerne, TX, and Floresville, TX. If you’re on the edge of the service area, call and we’ll tell you straight whether we can get to you.
Serving New Braunfels, TX - Our Local Coverage Area
We’re based in the New Braunfels 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 About Insulation Company in New Braunfels
Most New Braunfels appointments are scheduled within a few business days. For urgent jobs like an exposed attic after storm damage, call (903) 437-9164 and a live person will tell you the soonest we can be there. We don’t use voicemail trees.
Most HOAs in New Braunfels do not require approval for attic or interior insulation work, but if your neighborhood has rules about contractor access or work hours, we’ll follow them. Tell us when you schedule and we’ll handle it from there.
Yes. We schedule arrival windows that work for you, and if children or pets are home, we use quiet tools where possible and keep the work zone contained. Shoe covers and drop cloths go down before anything else, and we leave a photo of the clean-up before we pull away.
For a free estimate on insulation work in New Braunfels, call Thistledown Insulation at (903) 437-9164. A live person answers, and you’ll get a written price before any work starts.
What happens when you call
- 1A real person answersNo phone trees - talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 30-60 min.
- 4You approve before work beginsNothing starts until you say go.
What New Braunfels Customers Say
"Careful and clean from start to finish. They covered the hallway, wore booties, and hauled off all the old material without leaving a speck. Respectful of the home the whole time."
- Brett Yamamoto"Attic insulation with a baby in the house. The crew was quiet, clean, and protected every floor they crossed. Took away all the debris and left it tidy. Already feeling the difference in comfort."
- Omar Leon"Attic insulation with a newborn in the house. The crew was quiet, laid protection on every floor they crossed, and hauled off all the old material. Left it spotless and the house is cozier already."
- Corinne Dyer