Attic Insulation in
San Antonio
In a San Antonio summer, your attic can reach 130 to 140 degrees — and without enough insulation between that heat and your living space, your air conditioner fights a losing battle all day. Proper attic insulation is one of the most cost-effective ways to lower your energy bills and keep your home comfortable. We install Owens Corning ProCat blown-in insulation across San Antonio.
An AC that isn't fighting a superheated attic doesn't have to run as long or as hard. That means less wear, fewer breakdowns, and a longer service life for equipment you've already paid for. An AC that isn't fighting a superheated attic runs less and lasts longer — the same efficiency logic behind a right-sized new system.Â
Less Wear on Your System
Even, Steady Comfort
Heat pouring in through an underinsulated attic is heat your AC has to remove all over again. Sealing that gap means the system runs less and you pay less every month it's hot.
If your upstairs bakes while the downstairs stays cool, or certain rooms never settle, thin attic insulation is often the reason. A proper, even layer helps your whole home hold its temperature.
Lower Bills, Steadier Comfort, Less Strain on Your AC
Why Attic Insulation Matters Here
Even, Steady Comfort
Lower Energy Bills
What We Install
Owens Corning ProCat Blown-In Insulation
We install Owens Corning ProCat loose-fill blown-in insulation — a fiberglass system applied with specialized equipment that lets it flow into every gap, corner, and hard-to-reach space that flat batt insulation leaves exposed. It goes in cleanly and quickly, resists settling over time so it keeps its R-value for years, and lets us build your attic up to the depth your home actually needs. Before we start, we assess your current insulation and tell you honestly whether you'll benefit from a top-up or a full install — and give you an upfront price before any work begins. Insulation works best alongside sound ductwork — together they keep conditioned air where you want it.
Signs Your Attic Needs More Insulation
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Your energy bills climb every summer no matter what you set the thermostat to.
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Some rooms — especially upstairs — never get as cool as the rest of the house.
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Your AC seems to run almost constantly on hot days.
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You can see the ceiling joists in your attic, or the insulation looks thin, patchy, or flattened.
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Your home was built more than 15 or 20 years ago and the insulation has never been updated.
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The attic feels punishingly hot even in the evening after the sun's down.
A: A good rule of thumb: if you can see the ceiling joists across your attic floor, you don't have enough. Most homes in our climate benefit from a deeper layer than they were originally built with. We'll measure what you have and tell you honestly whether it's worth adding.
Q: What insulation do you install?
A:Â Owens Corning ProCat loose-fill blown-in fiberglass. It flows into gaps that batt insulation leaves open, resists settling over time, and lets us build the attic to the depth your home needs.
Q: Can you add insulation on top of what's already there?
A: In most cases, yes — blown-in insulation layers cleanly over existing material, as long as what's there is dry and in good condition. If your current insulation is damaged or wet, we'll talk through the right approach first.
Q: How much will it lower my energy bills?
A:Â It depends on how underinsulated your attic is to start with, but attic insulation is consistently one of the highest-return efficiency upgrades a homeowner can make in a hot climate like ours. We'll give you a realistic picture during your free assessment.
Attic Insulation Questions
Q: How do I know if I have enough attic insulation?
Get the Most From Your Comfort System
Upgrading your system, too?
Insulation and equipment work together — a well-sealed attic lets us size a new system to what your
home truly needs, so you're not paying to cool heat that never should have gotten in.
Losing air on the way to the room?
Insulation keeps heat out; sound ducts get the cool air where it's going. If some rooms never seem to
catch up, leaky or undersized ductwork is often the missing piece.
Stop paying to cool your attic. Let's fix the real problem.
Owens Corning ProCat blown-in insulation, installed by the same team that keeps San Antonio homes comfortable.
We install attic insulation throughout our service area.