Fast, Affordable Attic Insulation in San Antonio, TX

Most San Antonio attic insulation projects land in a fairly wide range depending on square footage, how much old insulation has to come out, and whether you add a radiant barrier. That's exactly why we inspect first and give you a written, itemized price instead of a phone quote. The inspection is free.

Texas building code calls for R-38 in the San Antonio climate zone. A lot of homes built before 2010 sit at R-13 to R-19, and settled blown-in can be lower still. We measure your existing depth during the inspection and show you the number.

Not always. If the existing material is dry, clean and evenly distributed, we can often top it up. If it's settled, water-damaged, or contaminated by rodents, it has to come out first — otherwise you're paying to insulate over a problem.

Bringing an under-insulated San Antonio attic up to code typically cuts cooling costs meaningfully, and pairing it with air sealing and a radiant barrier compounds the effect. Exact savings depend on your home, your AC and your habits, so we won't quote you a guaranteed number.

Blown-in wins in almost every Texas attic. Batt insulation has to be hand-cut around every pipe, wire and junction box, and the gaps that leaves cut real-world performance 15–25% below its rated R-value. Blown-in fills those gaps automatically and installs in a few hours instead of a full day. With attic temperatures hitting 150°F in July, every gap is 150° air working its way toward your living space.

Yes, and it does more here than in most of the country. A radiant barrier reflects radiant heat before it reaches your insulation, and radiant heat is exactly what a San Antonio summer delivers most of. It doesn't replace insulation — it works alongside it. Paired with R-38 blown-in and proper air sealing, it takes meaningful load off your AC during the hottest hours of the day.

CPS Energy runs rebate programs for attic insulation upgrades, and they can stack with the federal energy-efficiency tax credit. We'll tell you during the inspection whether your home is likely to qualify and help you with the application.

Yes. We work with homeowners, builders and contractors on new construction, additions, remodels and garage conversions. Tell us it's a new build when you get in touch and we'll quote accordingly.

The usual signs are rising electric bills, rooms that never match the thermostat, insulation that looks thin, flattened or unevenly spread across the joists, and any sign of moisture, mold or rodent activity. In most San Antonio homes you can also just measure it — if the insulation sits level with or below the tops of the joists, you're well under the R-38 the climate zone calls for. We check all of this during the free inspection and show you photos.

Fiberglass and blown-in insulation generally need attention every 15 to 20 years, though Texas heat and humidity shorten that. Cellulose can last longer. What actually matters is condition, not age — insulation that's stayed dry and undisturbed can still perform after 20 years, while a single roof leak or a rodent problem can ruin a five-year-old attic. Have it inspected every 5 to 10 years.