Attic Insulation in Houston - Same-Day Service, Done Right the First Time

Fast, Reliable Attic Insulation Across Houston

Attic insulation in Houston’s climate does two jobs at once: it slows heat pouring down from a 140°F attic in July, and it stops humid indoor air from leaking into a space where it can mat down fiberglass and feed mold. Most Houston homes built between 1960 and 1985 started with R-19 or less, and decades of settling plus moisture intrusion have quietly cut that number further. If your upstairs rooms run five to eight degrees warmer than the thermostat setting, the attic is usually the first place to look. Our Houston crews carry Owens Corning, CertainTeed, and GreenFiber products on the truck, and we answer the phone at (430) 226-1334 with a live person every time you call.

Call (430) 226-1334

We work in Meyerland, Sharpstown, the Heights, Katy, Pearland, Sugar Land, and every corner of the Houston metro. When you call, you get a written price before anyone climbs the ladder. That’s not a promotion. It’s how we’ve operated since 2003.

Why Thistledown Insulation Houston Is Houston’s Preferred Attic Insulation Company

Houston homeowners call us because they want to know exactly what product goes above their kids’ bedrooms, what the hallway floors will look like while the crew works, and what the final number is before we start. Our crews lay drop cloths from the front door to the attic hatch and wear shoe covers the entire time. When the job is done, we photograph the cleanup before the van pulls away. That photo is part of the Cedarwell Care Promise, not an add-on.

We’re an independently owned Cedarwell-family company, founded in 2003, and our Attic Insulation team installs to the same standard on every job. Technicians are background-checked and uniformed, so when a crew member rings your doorbell in Houston, you know who you’re letting in. Neil Barron leads our Houston operation, and he holds every job to the 365-Day Done Right Promise: if it’s not done right, we make it right, no debate and no fine print.

We stock products from eight brand lines, which matters in Houston because the right insulation for a 1970s ranch in Sharpstown is not automatically the right insulation for a 2015 two-story in Katy. Having Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber available means we match the product to the attic and the family, including pet-safe options where a choice exists.

Attic Insulation Removal in Houston

Attic Insulation Removal in Houston is most often about moisture, not age. When humid air from the living space leaks through unsealed can lights, attic hatches, and wall top plates into a hot attic, it carries moisture that settles into the fiberglass. The insulation gets heavy, mats down, and loses R-value while looking perfectly fine from the hatch. In homes along the 610 Loop and in older neighborhoods like Sharpstown, Meyerland, and Spring Branch, we regularly find blown-in fiberglass that has settled to half its original depth without the homeowner ever noticing. Removal is also the right call when rodents have nested in the attic, when a roof leak has soaked the insulation, or when old batt insulation was installed with the kraft facing pointed the wrong way and mold has started on the drywall.

Attic insulation removal in Houston typically costs $1.25 to $2.50 per square foot of attic floor, depending on depth, access, and whether the insulation is contaminated. On a 1,500-square-foot attic, most Houston homeowners pay between $1,900 and $3,800 for complete removal, bagging, and disposal. You will have your exact written number before we touch a rafter.

Removal Before Replacement

Some attics don’t need old insulation hauled out. If the existing blown-in fiberglass is dry, clean, and just settled, we can often top it up with new material at a fraction of the removal cost. But if there’s mold, animal waste, or kraft-facing moisture damage, leaving the old insulation in place means trapping the problem under a fresh layer.

Pet-Safe Removal Practices

During an attic insulation removal in Houston, we keep the attic hatch sealed with plastic sheeting and run a HEPA-filtered vacuum so dust doesn’t drift into the living space. We choose pet-safe insulation products where a choice exists, so the dog can be home during the job. Ask us about GreenFiber blown-in cellulose if you want a product with low dust and recycled content.

Blown In Insulation in Houston

Blown In Insulation in Houston is the most common upgrade we install in homes from the 1960s through the 1980s. These attics were built with shallow cavities and low-pitch roofs, which makes batt insulation awkward to install properly around trusses and ductwork. Blown-in fiberglass or cellulose fills irregular spaces, settles evenly, and hits target R-value quickly. In Houston’s climate, we recommend R-38 to R-49 for most attics, with the higher end making sense if you have a dark shingle roof and run the AC hard from May through October.

Blown-in attic insulation in Houston typically runs $1,400 to $3,200 for a 1,500-square-foot attic when installed over clean existing insulation. If the attic is empty or we’ve removed old material first, the same space costs $2,100 to $4,600. We blow Owens Corning fiberglass or GreenFiber cellulose, and before any of it arrives, we air seal the ceiling plane: can lights, attic hatch gaskets, wall top plates, and plumbing penetrations. In Houston, sealing those leaks is what makes the insulation actually work.

Radiant Barrier and Air Sealing

We pair blown-in insulation with a radiant barrier on the roof deck in Houston homes where the attic space gets brutally hot. A radiant barrier reflects radiant heat before it reaches the insulation below, which keeps the attic 20 to 30 degrees cooler on peak summer days. The combination of air sealing plus radiant barrier plus R-38 blown-in fiberglass is the most effective attic package we install in Houston.

What You’ll See During the Job

The crew lays drop cloths across your hallway from the front door to the attic hatch. The hose runs up through the hatch, and the machine stays outside. We work with quiet tools where possible, and if a baby is napping, tell us. We’ll schedule the machine time around the nap.

Trusted Brands We Service in Houston

We stock and install products from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. In Houston, we commonly recommend Owens Corning blown-in fiberglass for its consistency and availability, CertainTeed batt insulation for walls and cathedral ceilings, and GreenFiber cellulose for families who want a recycled, low-dust option near bedrooms. Because we carry eight brand lines, we don’t have to sell you what’s on the truck; we match product to your attic’s specific problem. If a brand is backordered nationally, we typically have an equivalent from another line in our Houston stock within a day. Spray foam options from Icynene and Demilec are available for Houston homes with unvented attic assemblies or ductwork running through unconditioned space.

Common Attic Insulation Problems We See in Houston Homes

• Settled blown-in fiberglass in Sharpstown, Meyerland, and Spring Branch. Humid air leaking from the living space into the attic matts down fiberglass until it looks fine from the hatch but performs like R-11 instead of R-30. The fix is air sealing first, then topping up or replacing the insulation.
• Kraft-facing batt insulation installed backward. In Houston’s high-humidity climate, paper facing pointed toward the attic traps moisture against the drywall ceiling. Within a few summers, you get mold stains, musty smells, and degraded Sheetrock. The fix is removal and reinstallation with the facing against the living space, or removal plus blown-in replacement.
• Missing radiant barrier in low-pitch, shingle-roofed 1960s-80s homes. Attic temperatures in these homes exceed 140°F in July, which pushes heat through whatever insulation is up there and forces the AC compressor to run longer. Adding a radiant barrier under the rafters cuts attic temperature significantly before you even touch the floor insulation.
• Unsealed can lights and attic hatches. These are the biggest air leaks in most Houston attics. A recessed light fixture can pass hot, humid air into the attic all summer, carrying moisture that condenses on ducts and insulation. We seal these with approved covers or replace the fixtures before adding insulation.

Pricing for Attic Insulation in Houston, TX

We Also Serve Cities Near Houston

Our crews work throughout the Houston metro, including Pasadena, Channelview, Highlands, and Stafford. If you’re in one of those areas, you’ll get the same written-price guarantee and the same Attic Insulation in Houston crew standards, scheduled from our Houston office. Same live-person phone answer, same shoe covers in your hallway, same photo of the cleanup before we leave.

FAQs About Attic Insulation in Houston