Blown-In Insulation in San Angelo, TX

Blown-in insulation is how most San Angelo attics reach a solid R-value without the cost of foam. A machine blows loose fiberglass or cellulose through a hose, and it settles into an even blanket across the attic floor, filling around joists, wires and fixtures in a way that batts cannot. Done after the ceiling is sealed, it gives a lot of performance for the money.

Fiberglass or cellulose

Loose-fill fiberglass is light, does not absorb much water, and does not settle much over time. Cellulose is made from recycled paper treated with fire retardant; it is denser, fills small gaps well and slows air movement through the layer a bit more. Both work well in a sealed attic. Fixr lists blown fiberglass at $1.65 to $2.60 per square foot and cellulose at $1.75 to $3.80. We recommend one or the other based on your attic and any existing material.

How deep to go

Tom Green County is in Climate Zone 3. ENERGY STAR suggests R-49 for an attic with no insulation and adding R-38 if three to four inches are already there, and the 2015 code Texas uses lists R-38 for new ceilings. Each product's bag chart converts that R-value to an installed depth, and we set depth markers across the attic so you can see that the depth on the quote is the depth you got.

Seal first

Loose fill slows heat but lets air pass through it. If the ceiling below has open chases, gaps at the top plates and unsealed light fixtures, house air keeps moving into the attic right through the new insulation. That is why every blown-in job we quote starts with air sealing. It also keeps dust from those gaps out of the rooms below.

Walls and enclosed spaces

Blown insulation also goes into closed wall cavities in older homes and into enclosed floor or ceiling spaces that cannot be reached any other way. In walls it is dense-packed so it will not settle and leave a gap at the top.

Topping up an existing attic

If the insulation already in your attic is dry, clean and mostly even, new loose fill can go right on top. If it is wet, stained, packed down by foot traffic or mixed with rodent droppings, it is better to remove it first. We tell you which you have during the visit.

Blown-in is usually a one-day job for an attic. Call or send the form to get a written quote. Get a free estimate