Fast, Reliable Attic Insulation Across New Braunfels
Attic insulation in New Braunfels typically costs between $1,800 and $5,400 for a full attic upgrade, with top-ups running $950 to $2,200 depending on square footage and current insulation depth. Most jobs in New Braunfels are completed in a single day, and we schedule within 72 hours in most cases. We know the streets, the heat, and the housing stock here, from downtown limestone to Vintage Oaks stucco. Call (903) 437-9164 and you’ll get a live person, a straight answer, and a written price before anyone picks up a tool.

Thistledown is the soft fluff of the thistle, one of nature’s lightest insulators. The name is a promise about how carefully we work.
Key Takeaways
- Full attic insulation in New Braunfels runs $1,800 – $5,400; top-ups run $950 – $2,200.
- We handle historic downtown attics with no existing access by cutting discrete panels in closets or hallways.
- Every job includes shoe covers, drop cloths, and a photo of the clean-up before we leave.
- 365-Day Done Right Promise: if it’s not done right, we make it right. No debate.
- Live person answers 24/7 at (903) 437-9164.
Why Thistledown Insulation San Antonio Is New Braunfels’s Preferred Attic Insulation Company
We’ve worked in enough New Braunfels attics to know what the heat does up there. A 140°F attic in July doesn’t just make your AC work harder. It bakes old fiberglass until it’s compressed, blackened, and functionally useless. Homeowners across Gruene, Oakwood Estates, and Castle Ridge call us after discovering exactly that. Our crews are background-checked and uniformed, so you know who’s walking through your door. We lay drop cloths across your hallway and wear shoe covers from the front door to the attic hatch. When the job’s done, you get a photo of the clean-up before the van pulls away.
Every job is backed by the 365-Day Done Right Promise. If something isn’t done right, we make it right. No fine print, no argument. And before any work begins, you receive a written price. Always. That’s the Cedarwell Care Promise standard, and it’s not optional.
Attic Mold Removal in New Braunfels
Attic Mold Removal in New Braunfels is a service we handle for homes where high humidity from the Guadalupe and Comal Rivers has pushed dew points up and created condensation inside poorly vented attics. In New Braunfels, mold in attics usually appears after a stretch of humid weather or an ice storm that trapped moisture against cold roof decking. We remove contaminated insulation, treat the affected framing, and correct the ventilation problem that let the moisture in. Attic mold removal in New Braunfels typically runs $1,400 to $3,800 depending on the square footage affected and whether insulation needs replacing afterward.
Mold Removal Process
We start by identifying the moisture source, not just the mold. In many New Braunfels homes, that means upgrading baffles and adding soffit ventilation so river-humid air doesn’t linger against the roof sheathing.
When Insulation Must Go
If mold has penetrated fiberglass batts or blown-in cellulose, the insulation has to come out. We remove it, bag it, and prep the attic for fresh material. You get a written price before any of that starts.
Attic Insulation Removal in New Braunfels
Attic Insulation Removal in New Braunfels is a job we do most often for two reasons: old degraded batts that have compressed over decades of Hill Country heat, and rodent or moisture damage that has contaminated existing material. In New Braunfels, the 1950s through 1980s brick ranches in neighborhoods like Oakwood Estates and Castle Ridge are prime candidates. Original R-11 batts in those attics often measure under 3 inches today, performing closer to R-4. Attic insulation removal in New Braunfels typically runs $1,100 to $2,900, not including the new insulation that follows.
Full Vacuum Removal
We use commercial vacuum equipment to pull out old fiberglass or cellulose completely, down to the ceiling plane. That gives us a clean surface to air-seal before blowing in new material.
Air-Sealing Before Reinsulation
Once the old insulation is out, we seal penetrations around light fixtures, plumbing stacks, and top plates. In New Braunfels, this step matters more than most people realize because it stops humid attic air from being drawn down into living spaces.
Trusted Brands We Service in New Braunfels
We install Attic Insulation using products from CertainTeed, Icynene, Demilec, and GreenFiber, along with Owens Corning, Johns Manville, Knauf, and Rockwool. For New Braunfels homes, we often recommend GreenFiber blown-in cellulose for older attics with irregular joist spacing and CertainTeed fiberglass batts for new construction or clean retrofit jobs. We stock material locally for fast turnaround, so a New Braunfels job doesn’t wait on a supply house across town. The right product gets matched to your attic, your home’s age, and your family’s needs, including pet-safe options where a choice exists.

Common Attic Insulation Problems We See in New Braunfels Homes
- Texas attic melt in 1970s neighborhoods. We see original fiberglass batts in Oakwood Estates and Castle Ridge that have compressed and blackened from years of 140°F attic heat. What was R-11 when new now performs like R-4, which means upstairs rooms can’t hold temperature.
- Rooms over garages that never cool down. In 2000s-2020s subdivisions like Vintage Oaks and Gruene, builders often insulated to code minimums. The room over the garage gets direct sun on three sides and sits above an unconditioned space, so it’s always 8-12°F warmer than the rest of the house.
- Hidden condensation from river humidity. Homes near the Guadalupe and Comal Rivers have indoor humidity levels that raise attic dew points. In poorly vented older attics, that moisture condenses inside the insulation and against roof decking, especially after ice storms.
- No attic access in historic downtown homes. Many 19th-century limestone and fachwerk homes in downtown New Braunfels have original plaster-and-lath ceilings with no attic hatch at all. That makes inspection and insulation impossible until a discrete access panel is cut, usually in a closet or hallway.
New Braunfels’s explosive growth has created a split housing stock, historic limestone homes in downtown versus sprawling new subdivisions like Gruene and Vintage Oaks, each demanding different insulation retrofits to combat the Hill Country heat and humidity. Our approach changes based on which type of house you own.
Pricing for Attic Insulation in New Braunfels, TX
A full attic insulation replacement in New Braunfels runs $1,800 to $5,400. That covers removal of old material where needed, air-sealing, and new insulation blown or batted to R-38 or R-49. A top-up over existing insulation runs $950 to $2,200. Attic mold removal runs $1,400 to $3,800, and insulation removal alone runs $1,100 to $2,900. What changes the price? Square footage, current insulation depth, whether old material needs removing, and whether we’re cutting new access in a historic home. You’ll have your exact written number before we touch a rafter. Call (903) 437-9164 for a free estimate.
We Also Serve Cities Near New Braunfels
Thistledown Insulation San Antonio serves Attic Insulation in New Braunfels and also covers Cibolo, San Antonio, Boerne, and Floresville. If you’re in a neighboring community, the same written pricing, clean-up standard, and 365-Day Done Right Promise applies. Our crews coordinate from the San Antonio office and serve New Braunfels locally.
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 Attic Insulation in New Braunfels
Attic insulation helps by reducing the temperature difference between your air-conditioned home and the hot attic above it, which is where condensation forms in humid climates like New Braunfels. Homes near the Guadalupe River deal with higher indoor humidity, so air-sealing and proper ventilation matter as much as the insulation itself. We recommend sealing any air bypasses before blowing in new insulation so humid attic air doesn’t get pulled into living spaces. Call (903) 437-9164 for an attic assessment specific to your home’s location and construction.
Usually yes, but many have no existing attic access, which means we need to cut a discrete access panel in a closet or hallway first. The attic cavities in those older limestone and fachwerk homes often have enough depth for blown-in insulation once we create the entry point and evaluate the ceiling structure. We match the product to the attic’s framing, and we’ll show you exactly where the panel will go before any cutting happens.
Texas attic melt is what we call the condition of old fiberglass batts that have been baked for decades by attic temperatures that regularly exceed 140°F in places like New Braunfels. The batts compress, darken, and lose most of their R-value. Original R-11 batts in Oakwood Estates often measure under 3 inches thick today, performing around R-4. Full removal and reinsulation with fresh material is the fix.
Yes. We work in tight-access townhome communities throughout New Braunfels and keep a small footprint. Our crew arrives in a single vehicle, uses only the space needed for the attic access, and keeps noise to a minimum, quiet tools when children are sleeping is part of the Cedarwell Care Promise. We’ll coordinate any HOA access requirements before the workday begins. Call (903) 437-9164 and we’ll talk through the access details for your specific unit.
Yes, it’s one of the most common fixes we make in New Braunfels subdivisions like Vintage Oaks and Gruene. Rooms over garages sit above unconditioned space and get direct sun exposure on multiple sides, so the ceiling plane above them needs proper insulation and air-sealing. Adding R-49 above those rooms, plus sealing the rim joists and any bypasses, typically brings the temperature within a few degrees of the rest of the house. Call (903) 437-9164 for a free estimate on bringing that room back into balance.
Our crew recently worked on a 1972 ranch in Oakwood Estates where the attic had original R-11 fiberglass batts compressed to under 3 inches and blackened from decades of 140°F attic heat. We removed the degraded batts, air-sealed the ceiling plane, and blew in R-49 Owens Corning AttiCat fiberglass. The homeowner reported a 12°F drop in the west-facing bedrooms within a week.
If you’re ready to get your New Braunfels attic handled by a crew that treats the house like it’s their own, call (903) 437-9164 today. You’ll reach a live person, get a straight answer, and have a written price before any work begins.
Written by Neil Barron, Owner at Thistledown Insulation San Antonio, serving New Braunfels since 2003.